WO1997033706A1 - Ultra-thin sheet steel and method for manufacturing the same - Google Patents
Ultra-thin sheet steel and method for manufacturing the same Download PDFInfo
- Publication number
- WO1997033706A1 WO1997033706A1 PCT/JP1997/000826 JP9700826W WO9733706A1 WO 1997033706 A1 WO1997033706 A1 WO 1997033706A1 JP 9700826 W JP9700826 W JP 9700826W WO 9733706 A1 WO9733706 A1 WO 9733706A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- sheet
- width
- less
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/383—Cladded or coated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0278—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
- Y10T428/12722—Next to Group VIII metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/12847—Cr-base component
- Y10T428/12854—Next to Co-, Fe-, or Ni-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
- Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
Definitions
- the ultra-thin steel sheet includes both an original sheet for surface treatment and a surface-treated steel sheet.
- the material of the can plate is specified by the degree of temper, and the temper is expressed by the target value of Rockwell T hardness (HR30 T). For single rolled products, T1 to T6 and twice rolling For products, this is expressed by the target value of hardness (HR30T) and the target value of proof stress measured in the rolling direction, and is classified into DR8 to DR10.
- the uniformity of the plate thickness, especially in the plate width direction, is important.
- the conventional steel plate for cans has a uniform thickness.
- the steel strip has a uniform hardness in the width direction. If the hard and soft parts coexist in the width direction of the ⁇ band, even when rolling is performed under the same rolling conditions, the elongation of the soft part is large, the elongation of the hard part is small, and the flatness is low. become worse. Such a flatness defect caused by the material, even though it appears to have been corrected in appearance by mechanical straightening such as a tension leveler, is then slit into cans. If a small blank is used, it will again appear partially warped, creating a new problem that makes high-speed can production difficult.
- the sheet thickness has become extremely thin for the purpose of mass cans, and it has become wide in terms of productivity.
- ultra-thin and wide steel sheets are new to the field of steel cans. It became necessary.
- the control of this crown amount includes four croissant crawl shifts and six-stage HC
- the plate crown fluctuated by more than about 40 / m, which was insufficient to ensure the uniformity of the material.
- the end in the width direction and the end in the length direction are cut off by trimming work or the like before finishing into a product as a steel sheet for a can, thereby resulting in a yield.
- the decline was a major problem.
- an object of the present invention is to provide an ultra-thin steel sheet for cans having a uniform material (especially hardness) and a uniform thickness, despite being extremely thin and wide, in view of the above-mentioned problems in the prior art, and production thereof. In providing five laws.
- Another object of the present invention is to provide a new tin can which can be tempered to a softer temper T1 or even a harder temper T2 to D6 and a temper DR8 to DR10.
- An object of the present invention is to provide an ultra-thin steel sheet for cans having a uniform material (especially hardness) and a uniform sheet thickness despite being ultra-thin and wide, which is suitable for the method.
- a specific object of the present invention is to provide an extremely thin and wide sheet having a sheet thickness of 0.20 mm or less and a sheet width of 950 mm or more, and at the same time, cold rolled steel sheets at both lateral end portions (however, High-quality ultra-thin steel plates with a thickness variation of less than 4% and a hardness (HR30T) variation of within 3 £ 1 within the range of The manufacturing method is provided. Disclosure of the invention
- the ultra-thin steel sheet of the present invention has an average sheet thickness of 0.20 mm or less and a sheet width of 950 or more.
- the thickness variation in the thickness direction is within ⁇ 4% of the average plate thickness, and the hardness (HR30T) variation in the plate width direction is within soil 3 of the average hardness.
- Mn 0.05 to 60 wt%, P: 0.02% or less,
- the balance is preferably composed of Fe and inevitable impurities.
- Mn 0.05 to 60 wt%
- P 0.02 wt% or less
- the C content is preferably more than 0.004 to 0.05 wt% in order to improve workability after welding, and is in the range of 0.004 wt% ⁇ below in order to improve deep drawability. This is preferred.
- These steel sheets include those having a surface treatment layer on at least one surface of the steel sheet. Further, it is preferable that the surface treatment layer has been subjected to sprinkling or chrome plating.
- the surface-treated layer had a total Sn content of 0.56 to 11.2 g / m 2, a sprinkling layer, and a 1 to 30 mg / m 2 metal Cr formed on the surface of the sprinkling layer. It is preferable to form a chromate layer formed on the upper layer and containing 1 to 30 mg / m 2 of chromium hydrated oxide in terms of Cr.
- this surface treatment layer is composed of a metal Cr 30 to 15 (containing a chromium plating layer of l mg / m 2 and a chromium hydrated oxide of 1 to 30 mg / m 2 in terms of Cr, chromate)! It is preferable that
- the surface treatment layer is formed on the surface of the Fe—Ni alloy layer having a weight ratio of Ni / (Fe + Ni) of 0.01 to 0.3 and a thickness of 10 to 4000 A, and a surface of the alloy layer. Further, a total Sn amount of 0.56 to 5.6 g / m, a sprinkling layer having a large number of convex portions on the surface with a convex area ratio of 10 to 70%, and further formed on the surface of the sprinkling layer, It is preferable to form a chromate layer containing 1 to 30 tng / m 2 of metal Cr and an upper layer formed with 1 to 30 mg / m 2 of chromium hydrate oxide in terms of Cr.
- a strip mainly a continuous structure piece, is butt-joined to a sheet bar having a sheet radiation of 950 mm or more by rough rolling, and this sheet bar is joined to a preceding sheet bar. Then, the width end of the sheet bar is heated by an edge heater, and then at least three stands are subjected to finish continuous rolling by pair cross roll rolling to obtain a sheet width of 950 mm or more and a sheet thickness of 0.5 to 0.5 mm.
- the end cross angle is 0.2. It is preferable to use the above-described method, and it is preferable to use one-sided work rolls in the cross-shift rolling. Further, the hot-rolled steel sheet of the present invention is a steel sheet having a thickness of 2 mm or less, a width of 950 mm or more, and a crown of ⁇ 40 m or less.
- the above-mentioned hot rolled steel sheet is suitably used for an extremely thin steel sheet.
- the steel slab is formed into a sheet bar having a sheet width of 950 mm or more by rough rolling, which is butt-joined to a preceding sheet bar, and a width end portion of the sheet bar is formed.
- the temperature is raised by an edge heater, and then, in at least three stands, finish continuous rolling by pair cross roll rolling is performed.
- the target plate size in the present invention has an average plate thickness of 0.20 mm or less and a plate width of 950 mm or more. The reason for this, as already mentioned, is to reduce the cost of can body production by reducing the weight of cans and to improve productivity by increasing the width.
- the variation of the thickness within ⁇ 4% of the average thickness in the radial direction of the steel sheet and the variation of the hardness (HR30T) within ⁇ 3 of the average hardness in the width direction of the steel sheet over the entire width of the steel sheet are as follows. This is because it is necessary to keep the variation in the sheet width direction within the above range in order to ensure high-speed threadability in processes such as continuous annealing and to secure dimensional accuracy and strength of the molded product. Here, it is desirable to keep the fluctuation amount below the desired amount over the entire width, but in practice, if the fluctuation amount below the desired amount is secured up to 95% of the full width.
- a wide and ultra-thin steel plate of the above-mentioned size having such high-precision plate thickness and hardness characteristics in the plate width direction has not existed until now.
- the inventors have come to the conclusion that, above all, in order to manufacture the above-described ultra-thin and wide steel sheet, it is essential to manufacture an ultra-thin and wide hot-rolled steel strip having good shape accuracy. Furthermore, in the finish rolling mill in the conventional hot rolling method, since the sheet bar after the rough rolling passes through one by one, the leading end of the sheet bar is inserted into the finish rolling mill and the tail end is cut off. Through-holes were repeated each time, and the leading and trailing ends of the sheet bar had to travel without being restricted by rolls in the finishing mill and between the final stand of the finishing mill and the winding machine. Focus on the fact that sufficient shape accuracy cannot be obtained Was. That is, in the conventional technology, the leading end and the trailing end of the sheet bar cannot be rolled under a constant tension as in the center in the rolling direction.
- the conventional technology has a limit in reducing the thickness of the sheet, and the hot rolled strip has a maximum of 1.8 strokes even if the economy is ignored.
- the inventors first made it possible to perform stable rolling at high speed by joining the sheet bar and performing continuous rolling during hot rolling and adjusting the crown of the ⁇ band. I figured it out.
- the crown of the hot rolled steel strip for cans is conventionally set to a convex shape.
- the inventors have found that it is important to prevent heat buckling in order to pass ultra-thin and wide steel sheets at high speed, and to improve the flatness of the cold-rolled steel strips that pass through them.
- the amount of C dissolved in the fly phase is about 1/10 to 1 of ⁇ .
- the strain aging of the slowly cooled steel sheet is mainly caused by Dominated by movement.
- the cooling rate is extremely high.
- C cannot be sufficiently precipitated, so that a large amount of solid solution C remains and adversely affects strain aging.
- C is an important element that controls the recrystallization temperature and suppresses the growth of the recrystallized grain size. .
- the crystal grain size becomes small and hardens as the C content increases, but in the case of the continuous annealing method, there is no simple tendency to harden as the C content increases.
- a steel plate can be manufactured from a low carbon steel containing C according to a required hardness without performing a vacuum degassing process.
- C in order to avoid excessive hardening and deterioration of rollability, and to produce steel plates suitable for cans by the continuous annealing method, C must be 0.1 wL% or less. .
- the tempering degree T which accounts for about 85% or more of the steel sheet for cans.
- the amount of C is in the range of 0.02% by weight or more because it is soft and does not require a pure degassing treatment.
- the present inventors systematically examined the relationship between the solute C and N and the crystal grain size on the tinplate hardness. As a result, even in the continuous annealing method, the solute C and N were reduced. It was found that the larger the diameter, the softer it can be. Based on this knowledge, the solid solution C after annealing In order to reduce the number, it is effective to reduce the C of the continuous structure as a starting material.
- the inventors of the present invention have studied a method for further reducing ⁇ of a tinplate, and have found that it is effective to reduce the amount of carbon serving as nuclei of crystal grains to a very small amount and to increase the crystal grain size. .
- the inventors conducted further research and found that by continuously annealing an ultra-low carbon steel material and changing the reduction rate of the subsequent temper rolling, the ⁇ 1 to DR10 I learned that they can be made separately on steel sheets.
- the thickness of the original sheet for cans is small when the sheet is passed through a continuous annealing furnace. Heating buckles ⁇ Passing troubles due to cooling buckles are likely to occur, and the sheeting speed must be limited to a small value. This is because production of high-strength ultra-thin steel sheets by the continuous annealing method was particularly uneconomical.
- Si is an element that deteriorates the corrosion resistance of tinplate and extremely hardens the material, it should be avoided to contain excessively.
- Si content exceeds 0.03% by weight, it becomes impossible to manufacture a hard tinplate by hardening, so it is necessary to limit the content to 0.03% by weight or less.
- Mn is an element necessary to prevent the occurrence of ear cracks in the hot rolled steel strip caused by S. If the amount of S is small, it is not necessary to add ⁇ , but since S is inevitably contained in the class, it is necessary to add ⁇ . If the Mn content is less than 0.05 wt%, the occurrence of ear cracks cannot be prevented, while if ⁇ exceeds 0.60 wt%, the crystal grain size becomes finer, and it becomes harder due to solid solution strengthening. Therefore, the amount of addition must be in the range of 0.05 to 0.60 wt%.
- P is an element that hardens the material and degrades the corrosion resistance of tinplate. Therefore, excessive P is not preferable, and it is necessary to limit the content to 0.0 t% Jil or less.
- A1 has the function of a deoxidizing agent in the manufacturing process of (1) and is an element necessary for increasing cleanliness. However, excessive addition is not only economically unfavorable, but also suppresses the growth of recrystallized grains, so its content must be within 0.20%. On the other hand, when the amount of A1 is extremely reduced, the cleanliness of tinplate deteriorates. Also, A1 is useful for obtaining a soft tinplate, and has a role of fixing surface N and reducing the residual amount. Therefore, A1 is limited to the range of 0.02 to 0.20 wt%.
- N soft steel sheet cannot be obtained if N is mixed with air in the production process of ⁇ and solid solution occurs in ⁇ . Therefore, when manufacturing soft materials, it is necessary to minimize the incorporation of N from the air during the steelmaking process to a level of 0.015 wt% or less.
- N is also an extremely effective component in order to easily produce hard materials at low cost.
- N gas must be refined during refining so that the N amount is in accordance with the target hardness (HR30T). Blow on molten steel This can be achieved by embedding.
- ⁇ is an oxide formed from Al, ⁇ in steel, Si as refractory, Ca, Na, F, etc. as flux, which may cause cracking during press working or cause deterioration of corrosion resistance. A little ', need to comb. Therefore, the upper limit of the amount of 0 is 0.01 wt%. In order to reduce 0, it is effective to use methods such as strengthening deoxidation by vacuum degassing, adjusting the weir shape of the tundish, the shape of the nozzle, and the charging speed. In these refining processes, adding an appropriate amount of A1 improves the cleanliness.
- Cr, Mo and Ni can increase the strength without deteriorating the ductility of the steel, they are added according to the target strength (hardness (HR30T)) level of the steel sheet. These elements also have the effect of improving the corrosion resistance of the steel sheet. To achieve these effects. At least 0.001 t% for Cu and Mo. At least 0 for Ni and Cr. You. However, even if added over 0.5 wt%, the effect is saturated and the cost increases, so the upper limit of the added amount is set to 0.5 wt% for all elements. Note that the effects of these elements can be similarly exerted singly or in combination.
- Ca, Nb and Ti are all useful elements for improving the cleanliness of ⁇ .
- excessive addition of Ca is not only uneconomical, but also the resulting nonmetallic inclusions have a lower melting point, become softer, and extend longer in the rolling process, leading to poor can processing.
- the upper limit is 0.005 wt%.
- the Ca oxide is in a molten state due to its composition in the molten steel, and the fine Ca oxide is also easy to aggregate, coalesce, float and separate, and the remaining nonmetallic inclusions are as small as 5 m or less.
- Such inclusions having a small particle size are uniformly dispersed by the continuous solidification method in which solidification is fast. Therefore, defects that have been caused by non-metallic inclusions can be eliminated.
- it is effective to dilute Ca with Ba or the like to exert the strong deoxidizing ability of Ca industrially.
- B is an element effective for improving grain boundary embrittlement.
- the carbide forming element is added to the extremely low carbon steel to reduce the solid solution C extremely, the strength of the recrystallized grain boundary becomes weak, and when the can is stored at low temperature, the embrittlement cracking occurs. May be caused. It is effective to add B to obtain good quality even in such applications.
- B also forms carbides and nitrides and is an effective element for softening. At the time of dulling, it segregates at the recrystallized grain boundaries and delays the recrystallization, so the amount of addition should be below 0.005 wt% J3 ⁇ 4.
- the lower limit of the amount of B added is preferably set to 0.0001 wt%, which is necessary for exhibiting the effect.
- the continuous gun piece used in the present invention can be obtained by subjecting molten steel to a vacuum degassing process as necessary and continuously manufacturing.
- the thickness of the hot-rolled strip is the limit at which a hot-rolled strip of uniform material can be manufactured while preventing the temperature of the sheet bar from lowering when rolling from a slab with a large cross section of about 260 mm thick. Therefore, considering the mill power, it is assumed to be 0.5 gnomes.
- the sheet bars are joined at the same timing, and the joining devices themselves are joined in a short time of less than 20 seconds while moving according to the speed of the sheet bar.
- the joint is heated by electromagnetic induction, pressed, and continuously rolled without interruption by a finishing mill, and then split and wound by a shearing machine just before the winding machine. is there.
- this crown is similar to that of the hot rolling zone, so the crown of the hot rolled sheet is basically reduced. It was found that in cold rolling, it is preferable to reduce the size of the former stand roll, which is thicker in cold rolling.
- the principle of crown control by the end cross method is that the minimum gap between the wheels, which occurs when the upper and lower WR axes are crossed, changes in a parabolic shape in the width direction, and the parabolic shape in the convex direction in the WR changes. This is equivalent to adding a mouth clean.
- crown control and edged-gap control can be performed by adjusting the cross angle of the knurl axis to preferably 0.2 ° or more, more preferably 0.4 ° or more.
- the edge ⁇ fill changes greatly from the edged edge to the edge edge, so it was also found that the edged edge edge can be significantly improved.
- the edged area is 20 to 30 mni from the width end, whereas the edge-up area is several times larger than the edged area, contributing to the improvement of the sheet crown.
- the thickness can be reduced to dead flat or concave crown.
- the strip shape changes from ear extension to middle extension when the cross angle is too large, and the cross angle is 1.5. If it is below, it does not affect the quality, but if it is larger than this, it will be understood that the workability of threading will be deteriorated due to the inside shape.
- the cross angle is preferably 0.2 ° or more, and more preferably 0.4.
- the crane volume of the hot strip can be kept within ⁇ 40 m.
- this crown amount exceeds +40 m and becomes a large convex crown, it becomes a convex crown even after cold rolling, and the central part of the sheet width extends more than the ⁇ part.
- the so-called “medium elongation” results in a shape defect and makes it difficult to perform continuous annealing at high speed.
- the role of the edge heater will be described.
- the environment of hot rolling is that it is exposed to the air except for the heating furnace, and that it is hot, and that rolling must be performed while removing the surface scale generated during rolling by high-pressure water spray. Since it is under conditions such as processing a small amount of slab to a thickness of 2 mm or less under high pressure as in the present invention, processing heat, recuperation, water cooling, cooling, etc. are mixed.
- the processing time of the hot rolling becomes long, the temperature difference in the full width direction and the full length direction becomes large, and the material becomes uneven.
- the piece thickness has increased and the required slab width has also increased.
- hot-rolled steel strips of increasingly thinner thickness are required to reduce the load of cold rolling. It is becoming larger.
- the end portion where the finish rolling end temperature is greatly reduced has a larger crystal grain size than the central portion, and a texture that is not preferable for deep drawing is developed.
- the temperature drop at the side edge of the trailing part in the rolling direction, which has a long waiting time before the rough rolling mill, is large, and the temperature drop is also large at the finishing mill.
- Figure 3 shows the results of a study by the inventors on the optimal cold rolling method. That is, Fig. 3 shows the thickness in the width direction of an ultra-thin wide-width plate (thickness 0.130 mm, width 1250 mm) rolled by changing the combination of the hot rolling method and the cold rolling method. This is the result of measuring the width of the hot rolled steel strip in the width direction.
- the thickness can be made uniform by using a pair cross roll for a hot rolling finish rolling mill and a cross shift mill for cold rolling in at least one preceding stand.
- a pair cross roll for a hot rolling finish rolling mill and a cross shift mill for cold rolling in at least one preceding stand it is preferable to use a single trapezoidal work roll as the work roll of the cross shift machine in cold rolling.
- Figure 5 shows the results of an investigation into the effect of flatness on the CAL threading speed and the ⁇ band breakage trouble in relation to the ⁇ band thickness and width.
- the frequency of breakage during high-speed threading increases as the sheet thickness decreases and as the sheet width increases.
- the flatness is improved, the risk of breakage is avoided.
- recrystallization after hot finish rolling is sufficient in the case of ⁇ % or less, annealing and temper rolling after cold rolling can be omitted.
- recrystallization after hot finish rolling can be realized by winding at 650 or more, preferably at 700 or more and self-annealing, but after winding, reheating the hot-rolled sheet to 550 to 600 and annealing. You can t.
- the winding temperature is not particularly limited, but is preferably 550 or more in terms of productivity.
- Heat treatment recovery treatment
- the upper limit is set to 400 t in order to prevent insufficient strength due to recrystallization.
- Such a heat treatment may be performed before the plating treatment and the chromate treatment, or after these treatments, it may be performed simultaneously with the paint baking or laminating step in a can-making line.
- the reduction rate is, for example, in the range of several percent to 40%. Appropriate temper rolling may be performed.
- the present inventors have studied the weldability of LTS for high-speed seam welding cans, and have also found that the amount of residual metallic tin immediately before welding significantly improves weldability.
- metallic tin is soft and low melting point (232 t) metal, it is easily deformed or further melted by the welding pressure at the contact part with the welding electrode and the contact part between the steel plates, and the contact area is increased. It is easy to form a strong welding nugget without generating “scatter” caused by local concentration of welding current. As a result, the proper welding current range is increased.
- the amount of metal remaining immediately before welding is preferably 0.05 (g Ai 2 ) or more.
- At least one side of the steel plate is subjected to Ni plating with an adhesion amount of 0.02 to 0.5 g / m 2 and subjected to diffusion treatment annealing, so that the weight ratio of iron (Fe + Ni) is reduced to 0. It forms a Fe—Ni alloy layer with a thickness of 10 to 4000 A.
- the formation of the convex sprinkling layer using the Ni diffusion plate is performed by applying a flat electric sprinkle to the surface of the mother plate after the diffusion treatment, and then performing a riff process to remove the tin. It can be achieved by collecting and coagulating. Furthermore, after applying an electric sprinkle, a flux (aqueous solution such as ZriCl 2 JH 4 Cl) is applied to the surface, and then a reflow process is performed. This proved that the convex shape could be formed more effectively.
- a flux aqueous solution such as ZriCl 2 JH 4 Cl
- Ni diffusion treatment In order to perform the above-mentioned Ni diffusion treatment most effectively, it is preferable to provide a plating facility before the continuous annealing line and to provide a temper rolling facility on the exit side of the annealing line.
- a plating facility before the continuous annealing line and to provide a temper rolling facility on the exit side of the annealing line.
- Ni plating, annealing, and temper rolling as one line and finishing up to the mother plate for plating at a stroke, it is possible to greatly reduce costs by continuity.
- the continuity of the plating-annealing-to-temper rolling process can be performed continuously without time delay, preventing the formation of Pe oxides, etc., and improving the weldability and corrosion resistance. It gets even bigger.
- the continuous annealing method of the present invention has less impurity concentration on the surface than the box annealing method, and is advantageous in terms of heat resistance and corrosion resistance.
- this method can also be applied in combination with reheating and recrystallization treatment using a continuous annealing line in a hot-rolled steel strip.
- sparrow with layer is made of from 0.56 to 11.2 metallic Sn quantity of g / m 2
- chromate one coat layer Contains 1 to 30 mg / m 2 of hydrated chromium oxide and 1 to 30 mg / m 2 of metallic Cr in terms of Cr.
- the amount of hydrated ⁇ -comb in the chromate layer is less than 1 mg / m 2 in terms of Cr, the coating adhesion and printing adhesion of the sheet coat will be small, or the film adhesion will not be sufficiently large. . On the other hand, if it exceeds 3 (] mg / m 2 , the electrical conductivity will be poor and the weldability will be reduced.
- the surface of the Fe—Ni alloy layer was sprinkled and subjected to a reflow treatment (usually put into a 50-80 t: water tank within 1 second after heating to 230-28 Qt). After forming a sprinkling layer having a large number of convex portions on the surface at a convex area ratio of 10 to 70%, a chromate treatment can be performed.
- 0.1 a sparrow with layer 56 ⁇ 5. 6 g / m 2 of the metal Sn amount, click opening arm hydrous oxide of 1 to 30 mg / m 2 of chromate layer of Cr terms and 1 to It shall contain 30 mg / m 2 of metallic Cr.
- the reason is that if the Sn content is less than 0.56 g / m 2 , the Fe-Sn alloying progresses due to reflow processing, painting, baking after printing, etc., and the residual metal Sn content immediately before welding decreases. Because it is too much. On the other hand, if it exceeds 5.6 g / m 2 , the amount of metallic Sn is too large, so that even if refining is performed, island-shaped tin cannot be formed, resulting in a flat or simple uneven shape. This is because significance is lost.
- the reason for limiting the composition of the chromate layer is the same as in the case of applying the normal sprinkling described above.
- the reason why the area ratio of the protruding parts with convex sprinkles obtained by the refining treatment was set to 10 to 70% is that if it is less than 10%, the effect of expanding the contact area during welding is insufficient, and the effect of improving weldability is not sufficient. If the value exceeds 70%, the economic significance of convexity is lost.
- Figure 1 shows the effect of the hot finish rolling method on the hardness (GIR30T) distribution of the cold rolled steel strip.
- FIG. 3 is a diagram showing the effect of the hot rolling method and the cold rolling method on the thickness distribution of the cold rolled strip.
- FIG. 4 is a diagram showing the effect of pair-cross hot finish rolling and cross-shift cold rolling on the crown and flatness of a cold-rolled strip.
- FIG. 5 is a diagram showing the influence of the thickness and flatness of the cold-rolled strip on the high-speed sheet passing property of continuous annealing.
- Figure 6 is a photomicrograph of the metallographic structure showing an SEM image of tin islands.
- Tables 2 and 3 show the above manufacturing conditions.
- Some cold-rolled strips were subjected to Ni plating, and continuous annealing (Ni-plated material was equivalent to Ni diffusion treatment) was performed in the same manner as other cold-rolled strips.
- the diffusion annealing condition was 660 to 690 for 10 seconds. Subsequently, by adjusting the rolling reduction of the temper rolling, plates having various temper degrees were manufactured.
- Atmosphere NHX gas atmosphere (10% H 2 + 90% N 2 )
- Example 2 Cold rolled steel sheets were produced in the same manner as in Example 1 using steel having the composition shown in Table 2.
- the surface of the steel plate was plated, and in some cases, treated with a riff, followed by chromate treatment to produce a surface-treated steel plate.
- Tables 8 and 9 show the above manufacturing conditions.
- the steel of No. 2 was overaged for 500 t: 30 seconds during continuous annealing.
- the surface treatment conditions are as follows.
- the normal sprinkling without N 1 diffusion treatment is performed in a halogen-type electric sprinkling process, where sprinkling or thin sprinkling is performed, and reflow and chromate treatments are continuously performed. Finished.
- Royalty Nfu Li one steel plate is an electric plated line, first Cr0 3: 180 g / 1, H 2 S0 4: 0.8 g / 1 in chromate solution metallic chromium amount 30 to 120 mg / after facilities the plated of m 2, subsequently Cr0 3: 60 g /], H2SD4: 0.2 g / 1 of hydrated chromium oxide in a chromate solution plated for (1 ⁇ 3 ⁇ mg / m 2 in terms of chromium content) I went and finished it.
- the sprinkling process was performed in a halogen-type electric sprinkling process, followed by a riff opening process and a chromate treatment.
- the Sn plating bath used and the reflow and chronod treatment conditions are as follows.
- the amount of Ni plating and the ratio of NiZ (Ni + Fe) in the surface layer were measured according to the following methods.
- NiZ (Ni + Fe) ratio Measured in the depth direction by weight using GDS
- Samples were sampled from the surface-treated steel sheet that had been subjected to plating and chromate treatment, and the hardness (HR30T) distribution and thickness (mm) distribution in the width direction were measured.
- the can-making property was investigated by the following method.
- a bending process equivalent to that of the can body was performed, and a fluting resistance test was performed.
- bending was performed so as to correspond to the molding of the can body.Breaking generated in the body was not enough to be seen as a product and flatness was not obtained as the designed roundness was obtained.
- the evaluation was made by classifying those (marked with X) and those not marked (marked with ⁇ ).
- the scratch resistance of the can wall was evaluated, and the two pieces were evaluated as having no scratches by visual observation (indicated by a mark) and those in which the scratches were confirmed and corrosion resistance was expected to deteriorate (marked by an X). It was evaluated separately.
- the obtained surface-treated steel sheet was tested for corrosion resistance, corrosion resistance, paint adhesion by a T-peel test, and high-speed weldability according to the following methods.
- the surface of the sample was coated with a modified epoxy ester coating material 6 (Toyo Ink Co., Ltd. F-65DF-102 (revised 1)) at 60 mg / dm 2 and baked under the conditions of 160 ⁇ 10 minutes. This was used to hot pack 70 ml of 90 tomato juices.
- a modified epoxy ester coating material 6 Toyo Ink Co., Ltd. F-65DF-102 (revised 1)
- the painted surface-treated steel sheet was welded with a copper wire-type electric resistance heating seam welding machine (commercial machine) with a wire diameter of about 1.5 ⁇ at a wire speed of 65 m / min, a welding pressure of 40 kg, and a frequency of 600 Hz.
- a copper wire-type electric resistance heating seam welding machine commercial machine with a wire diameter of about 1.5 ⁇ at a wire speed of 65 m / min, a welding pressure of 40 kg, and a frequency of 600 Hz.
- This test piece was subjected to a T-peel test using a tensile tester, and the adhesive strength was measured, which was used as an index of paint adhesion.
- the distribution of the convex tin is divided into a convex part and a flat part in the SEM image (1000 times) of the tin analysis of EPM A, and the area ratio of the convex part was measured by image processing.
- Hot rolled steel strip Surface treatment steel strip Temper quality average Leading end of hot rolled steel strip Center of hot rolled steel strip Trailing end of ripe steel strip Central radiant tip Central hot rolled steel strip Average thickness Hardness Width end 5 Width center fluctuation amount Width end 5 Width center fluctuation amount Width end 5 Width center change ⁇ 4% from width end Occluded position H position ⁇ ⁇ ⁇ 3 mm position Position ⁇ ⁇ 3 sleep la Position ⁇ ⁇ 3
- Table 1 Flatness of cold rolled steel strip Continuous annealing passability Surface treatment ⁇ Bending of band and measured on platen Bonding accuracy of filament
- the conventional hot rolling (single rolling) was performed in a single piece unit, and a cold rolling machine that does not use a crossing machine with a single trapezoidal work roll without using a finishing machine was also used. Rolling was performed.
- Tables 13 and 14 show the above manufacturing conditions.
- the Ni plating bath and annealing used were the same as in Example 1.
- the Ni plating amount and the ratio of Ni / (Ni + Fe) in the surface layer were measured in the same manner as in Example 1.
- Inventive example 0 0 1000 0 Inventive example 0 0 1000 0 Figure can be produced as welded cans because the figure is accurately affixed 0 0 1000 0
- Comparative example 4 2 300 0.5 Weld can ⁇ Film is found in the welded area Comparative example 4 3 300 1 ffi break 0.9, welding failed Comparative example 6 1 300 Partially broken 1
- Tables 19 and 20 show the respective manufacturing conditions.
- the conditions of the plating bath and annealing and various surface treatment conditions in the Ni diffusion treatment were the same as those in Example 2.
- Specimens were sampled from the surface-treated steel sheet manufactured by the above method, and the hardness (HR30T) distribution and thickness (mm) distribution in the width direction were measured.
- the r value (Rankford value) and its anisotropy ⁇ r were also measured.
- NiZ (Ni + Fe) in the surface layer of the Ni diffusion treated material flatness of cold rolled strip and permeability in continuous annealing, hardness (HR30T) distribution in surface treated sheet, sheet thickness (mm) distribution, All test conditions such as can-making properties, mackerel resistance, corrosion resistance, paint adhesion by T-peel test, and high-speed weldability were all the same as those in Example 2.
- the No. 1 stand No. 1 roll was rolled to an ultra-thin sheet thickness by a 6-stand tandem continuous cold rolling mill, which was a cross-shifting machine using a single trapezoidal work piece.
- Some cold-rolled steel strips were plated and continuously annealed (Ni-plated materials corresponded to Ni diffusion treatment) as in other cold-rolled strips.
- the thermal cycle of the diffusion annealing was 730 to 760: for 10 seconds.
- slabs of various temper degrees were manufactured by adjusting the rolling reduction of the temper rolling.
- Table 26 and Table 27 summarize the above manufacturing conditions.
- the Ni plating bath and annealing used were the same as in Example 1.
- nu J 111i111 u 11111 086308633333 oooooooooooo Specimens were sampled from the steel sheet subjected to such treatment, and the hardness (HR30T) distribution and the thickness () distribution in the width direction were measured. The r value (Rankford value) and its anisotropy ⁇ r were also measured.
- the plating amount and the ratio of / (Ni + Fe) in the surface layer were measured in the same manner as in Example 1.
- Example 5 Cold rolled steel sheets were produced in the same manner as in Example 5 using the ropes having the components shown in Table 32. After plating and, in some cases, reflow treatment, a chromate treatment was performed on the surface of the plate to produce a surface-treated steel plate.
- Table 33 and Table 34 summarize these production conditions.
- the Ni plating bath and annealing conditions and various surface treatment conditions used were the same as those in Example 1.
- a test material was sampled from the surface-treated steel sheet manufactured by the above method, and the hardness (HR30T) distribution and the thickness (hidden) distribution in the width direction were measured.
- the r value (Rankford value) and its anisotropy ⁇ r were also measured.
- NiZ (Ni + Fe) in the surface layer of Ni diffusion treated material flatness of cold rolled strip and passability in continuous annealing, hardness (HR30T) distribution, thickness (mm) distribution,
- the test conditions such as can performance, corrosion resistance, corrosion resistance, paint adhesion by T-peel test, and high-speed weldability were all the same as those in Example 2.
- a rope having the component composition shown in Table 39 was melted by a 270 t bottom-blowing converter and inserted into a continuous machine to obtain chips.
- the hot finish rolling mill used for the stand is used to continuously roll into an ultra-thin surface-treated steel sheet with a width of 950 to 1300 mm, and self-annealing in the form of a hot-rolled steel strip or reheating annealing through a continuous annealing line. did. After self-annealing or before reheating annealing, descaling was performed by pickling.
- the No. 1 stand's ⁇ -roll was rolled to an ultra-thin sheet thickness by a 6-stand tandem continuous cold rolling mill which was a cross-shifting machine using a one-sided work roll.
- the rolling reduction of the temper rolling was adjusted to obtain cold-rolled sheets having various temper degrees.
- test material was sampled from the steel plate subjected to such treatment, and the hardness (HR30T) distribution and the thickness ( mm ) distribution in the width direction were measured.
- the Ni plating amount and the ratio of Ni / (Ni + Fe) in the surface layer were measured in the same manner as in Example 1.
- a cold-rolled steel sheet was produced in the same manner as in Example 7 using the components shown in Table 44.
- the surface of this steel sheet was plated and subjected to chromate treatment to produce a surface-treated steel sheet.
- Tables 44 and 45 summarize the above manufacturing conditions.
- test material was sampled from a cold-rolled steel strip and a surface-treated steel sheet manufactured by such a method, and an investigation test was performed.
- the test conditions such as hardness (HR30T) distribution, plate thickness (mm) distribution, can-making properties, corrosion resistance, corrosion resistance, paint adhesion by T-peel test, and high-speed weldability are all the conditions of Example 2. The same as above.
- Hot-rolled webbing Surface treatment ropes Purchasing average Leading-edge position of hot-rolled webbing Central part of hot-rolled webbing Trailing end of hot-rolled webbing band Average thickness Hardness Width end 5 Width center Revolving amount Width end 5 Width center Variation Width end 5 Width center Soil from the width end 4% mm from the width end concealment ⁇ ⁇ 3 mm 3 Ml position position rice ⁇ ⁇ 3
- Comparative Example 5 8 2 Welded can ⁇ There was a fill in the weld. Comparative Example 7 8 1.2 Welding failed
- Temper 3pcs can 2pcs can Type Total parent metal tin content.
- Metal Cr content Cr oxide content Filamentous ft Corrosion High speed Adhesive strength Rating tt f) 1- Sex
- Example 8 From the above, it was confirmed that according to the present invention, it is possible to manufacture an ultra-thin and wide steel plate for cans having a uniform thickness and hardness in the width direction.
- the new two-piece can method and the three-piece can method are compatible with high-speed can-making and have a material suitable for processing into lightweight cans. It has been found that it is possible to manufacture an ultra-thin plate for cans having performances suitable for the above.
- this steel plate is used for optimizing rope components, continuation of hot rolling and heating of the width end, pair cross rolls of the hot rolling upper rolling mill, and rolls on the cross roll of the cold rolling mill.
- Ni-plating is performed on the surface of the steel strip and diffused by annealing to form an Fe-Ni alloy layer, which results in excellent uniformity of material and plate thickness, and a convex tin layer. This makes it possible to manufacture an ultra-thin and wide can steel plate having excellent high-speed seam weldability.
- the continuous gun piece is shot in a width corresponding to a plurality of product widths, and is divided into product widths after hot rolling or cooling or after surface treatment, thereby improving the efficiency. Products can also be manufactured.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
- Electroplating Methods And Accessories (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97908491A EP0826436A4 (en) | 1996-03-15 | 1997-03-14 | ULTRA-THIN STEEL SHEET AND METHOD FOR THE PRODUCTION THEREOF |
| US08/952,013 US6042952A (en) | 1996-03-15 | 1997-03-14 | Extremely-thin steel sheets and method of producing the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5966696 | 1996-03-15 | ||
| JP8/59666 | 1996-03-15 | ||
| JP11218296 | 1996-04-10 | ||
| JP8/112182 | 1996-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997033706A1 true WO1997033706A1 (en) | 1997-09-18 |
Family
ID=26400735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1997/000826 Ceased WO1997033706A1 (en) | 1996-03-15 | 1997-03-14 | Ultra-thin sheet steel and method for manufacturing the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6042952A (ja) |
| EP (1) | EP0826436A4 (ja) |
| JP (4) | JP3249760B2 (ja) |
| KR (1) | KR19990014807A (ja) |
| CN (1) | CN1160163C (ja) |
| WO (1) | WO1997033706A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286688A (zh) * | 2010-06-21 | 2011-12-21 | 宝山钢铁股份有限公司 | 一种高硬度镀锡原板用钢及其制造方法 |
| CN103433278A (zh) * | 2013-08-13 | 2013-12-11 | 永鑫精密材料(无锡)有限公司 | 一种led行业用低碳钢精密冷轧钢带生产方法 |
| CN109440015A (zh) * | 2018-11-12 | 2019-03-08 | 包头钢铁(集团)有限责任公司 | 一种400MPa级冷轧滑轨钢及其制造方法 |
| CN111112329A (zh) * | 2020-01-03 | 2020-05-08 | 江苏贯森新材料科技有限公司 | 一种超硬不锈钢的冷轧方法 |
| CN114345935A (zh) * | 2021-12-28 | 2022-04-15 | 浙江精瑞工模具有限公司 | 一种高速钢轧制方法 |
| WO2023210822A1 (ja) * | 2022-04-29 | 2023-11-02 | 東洋鋼鈑株式会社 | 圧延表面処理鋼板の製造方法及び圧延表面処理鋼板 |
Families Citing this family (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1003293C2 (nl) | 1996-06-07 | 1997-12-10 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een stalen band. |
| WO1998026882A1 (en) | 1996-12-19 | 1998-06-25 | Hoogovens Staal B.V. | Process and device for producing a steel strip or sheet |
| JP3931455B2 (ja) * | 1998-11-25 | 2007-06-13 | Jfeスチール株式会社 | 缶用鋼板およびその製造方法 |
| JP4442784B2 (ja) * | 2000-01-26 | 2010-03-31 | 臼井国際産業株式会社 | 高疲労強度鋼材およびその製造方法 |
| JP4639468B2 (ja) * | 2000-01-28 | 2011-02-23 | Jfeスチール株式会社 | 薄物熱延鋼板の製造方法 |
| JP4788030B2 (ja) * | 2000-03-23 | 2011-10-05 | Jfeスチール株式会社 | 軽量2ピース缶用鋼板およびその製造方法 |
| JP4810766B2 (ja) * | 2001-07-05 | 2011-11-09 | Jfeスチール株式会社 | 軽量2ピース缶用極薄高強度鋼板の製造方法 |
| FR2838990B1 (fr) * | 2002-04-29 | 2006-03-03 | Mannesmann Roehren Werke Ag | Procede pour fabriquer un acier calme a l'aluminium |
| KR100501007B1 (ko) * | 2002-09-18 | 2005-07-18 | 주식회사 포스코 | 형상품질이 우수한 냉연강판의 제조방법 |
| KR100930515B1 (ko) * | 2002-12-24 | 2009-12-09 | 주식회사 포스코 | 에지히터 보호장치 |
| ITTO20030120A1 (it) * | 2003-02-18 | 2004-08-19 | Roberto Lanata | Prodotto laminato e relativo procedimento di produzione. |
| JP4164828B2 (ja) * | 2004-09-29 | 2008-10-15 | 日立金属株式会社 | Fe−Ni系合金薄板材の製造方法 |
| CN101336303B (zh) * | 2006-01-26 | 2011-04-06 | 乔瓦尼·阿尔维迪 | 热轧、微合金化的低碳钢带材 |
| JP5162924B2 (ja) | 2007-02-28 | 2013-03-13 | Jfeスチール株式会社 | 缶用鋼板およびその製造方法 |
| JP5176599B2 (ja) * | 2007-03-30 | 2013-04-03 | Jfeスチール株式会社 | 建材用極薄冷延鋼板およびその製造方法 |
| JP4193998B1 (ja) * | 2007-06-28 | 2008-12-10 | 株式会社神戸製鋼所 | 被削性に優れた機械構造用鋼およびその製造方法 |
| WO2010090204A1 (ja) * | 2009-02-03 | 2010-08-12 | 新日本製鐵株式会社 | スズめっき鋼板及びその製造方法 |
| EP2434029B1 (en) * | 2009-05-18 | 2018-02-21 | Nippon Steel & Sumitomo Metal Corporation | Ultra-thin steel sheet and process for production thereof |
| CN101591755B (zh) * | 2009-07-14 | 2011-06-15 | 武汉钢铁(集团)公司 | 酸性食品罐用镀锡原板及其制造方法 |
| JP2011093613A (ja) * | 2009-09-30 | 2011-05-12 | Honshu Seikan Kk | 角形状缶 |
| JP5515732B2 (ja) * | 2009-12-25 | 2014-06-11 | Jfeスチール株式会社 | 耳割れのない熱延鋼板の製造方法および耳割れのない冷延鋼板の製造方法 |
| CN102719738B (zh) * | 2011-03-29 | 2014-09-03 | 鞍钢股份有限公司 | 一种薄规格硬质镀锡原板及其制造方法 |
| DE102011056847B4 (de) * | 2011-12-22 | 2014-04-10 | Thyssenkrupp Rasselstein Gmbh | Stahlblech zur Verwendung als Verpackungsstahl sowie Verfahren zur Herstellung eines Verpackungsstahls |
| EP2743365B1 (en) * | 2012-04-19 | 2020-09-16 | Nippon Steel Corporation | Steel foil and method for producing same |
| CN102658294B (zh) * | 2012-05-09 | 2015-09-02 | 永鑫精密材料(无锡)有限公司 | 玩具行业用低碳钢精密冷轧极薄钢带、其工艺方法及其用途 |
| RU2510688C1 (ru) * | 2012-09-03 | 2014-04-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Способ холодной непрерывной прокатки тонких стальных полос |
| CN102912218A (zh) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | 一种冲压性能良好的镀锡原钢板及其制造方法 |
| CN103849816B (zh) * | 2012-12-04 | 2016-04-06 | 上海梅山钢铁股份有限公司 | 适用于花篮桶用抗起楞软质镀锡板 |
| JP5516816B1 (ja) | 2013-10-15 | 2014-06-11 | 大日本印刷株式会社 | 金属板、金属板の製造方法、および金属板を用いて蒸着マスクを製造する方法 |
| CN104550253A (zh) * | 2013-10-22 | 2015-04-29 | 上海宝钢工业技术服务有限公司 | 一种平整机倾斜预警系统及其预警方法 |
| RU2547087C1 (ru) * | 2014-01-09 | 2015-04-10 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Способ производства горячекатаного проката повышенной прочности |
| CN103878178B (zh) * | 2014-03-04 | 2015-12-09 | 河北钢铁股份有限公司唐山分公司 | 薄板坯连铸连轧生产超薄热轧板卷的方法 |
| JP5641462B1 (ja) | 2014-05-13 | 2014-12-17 | 大日本印刷株式会社 | 金属板、金属板の製造方法、および金属板を用いてマスクを製造する方法 |
| CN105251768B (zh) * | 2014-07-16 | 2017-05-24 | 鞍钢股份有限公司 | 一种极薄冷轧镀锡原板轧制方法 |
| CN105013833B (zh) * | 2015-06-30 | 2017-04-05 | 攀钢集团西昌钢钒有限公司 | 极薄规格冷硬带钢板形控制方法 |
| KR20170074493A (ko) * | 2015-12-22 | 2017-06-30 | 주식회사 포스코 | 고강도 석도 원판 및 이의 제조방법 |
| CN105861950A (zh) * | 2016-06-13 | 2016-08-17 | 苏州双金实业有限公司 | 一种能够有效防止氧化的钢 |
| CN105955220B (zh) * | 2016-06-17 | 2019-11-26 | 首钢集团有限公司 | 一种控制带钢卷取张力的方法及装置 |
| KR102339193B1 (ko) * | 2017-07-28 | 2021-12-13 | 제이에프이 스틸 가부시키가이샤 | 전지 외통캔용 강판, 전지 외통캔 및 전지 |
| CN109722604B (zh) * | 2017-10-30 | 2021-02-19 | 宝山钢铁股份有限公司 | 一种两片喷雾罐用镀锡板及其制造方法 |
| KR101999030B1 (ko) * | 2017-12-26 | 2019-10-01 | 주식회사 포스코 | 등방성이 우수한 초극박 열연강판 및 그 제조방법 |
| CN109055921A (zh) * | 2018-08-27 | 2018-12-21 | 重庆立道新材料科技有限公司 | 一种化学浸镀锡液及其制备方法 |
| JP6787500B2 (ja) * | 2018-08-29 | 2020-11-18 | Jfeスチール株式会社 | 缶用鋼板およびその製造方法 |
| KR102525059B1 (ko) * | 2019-01-31 | 2023-04-21 | 제이에프이 스틸 가부시키가이샤 | 강판의 압연 방법 및 강판의 제조 방법 |
| WO2020196293A1 (ja) * | 2019-03-22 | 2020-10-01 | 日本製鉄株式会社 | 熱延コイルの製造装置及び製造方法 |
| KR102325472B1 (ko) * | 2019-12-02 | 2021-11-15 | 주식회사 포스코 | 구멍확장성이 우수한 열연강판 및 그 제조방법 |
| KR102930175B1 (ko) | 2019-12-05 | 2026-02-24 | 코웨이 주식회사 | 정수기용 응축기, 정수기용 응축기의 제조 방법 및 응축기를 구비하는 정수기 |
| KR102353731B1 (ko) * | 2019-12-20 | 2022-01-19 | 주식회사 포스코 | 가공용 주석 도금원판 및 그 제조방법 |
| KR102326324B1 (ko) * | 2019-12-20 | 2021-11-12 | 주식회사 포스코 | 고강도 주석 도금원판 및 그 제조방법 |
| EP4144478B1 (en) | 2020-04-28 | 2025-09-10 | Posco | Welding wires for obtaining giga-grade welds, welded structures manufactured using same, and welding method thereof |
| CN112376110A (zh) * | 2020-11-03 | 2021-02-19 | 江苏苏讯新材料科技股份有限公司 | 一种电镀铬钢带生产过程中的判废返修工艺 |
| CN112974523B (zh) * | 2021-02-23 | 2023-04-07 | 山西太钢不锈钢精密带钢有限公司 | 一种用于密封垫的309s极薄精密不锈带钢的生产方法 |
| CN113198839B (zh) * | 2021-04-14 | 2023-01-20 | 首钢集团有限公司 | 机架间断面形状数据分配合理性的诊断方法、装置及设备 |
| JP7111217B1 (ja) * | 2021-04-30 | 2022-08-02 | Jfeスチール株式会社 | 冷延鋼板の製造方法及び製造設備 |
| JP7111216B1 (ja) * | 2021-04-30 | 2022-08-02 | Jfeスチール株式会社 | 冷延鋼板の製造方法及び製造設備 |
| KR20240088716A (ko) * | 2021-10-14 | 2024-06-20 | 타타 스틸 이즈무이덴 베.뷔. | 고강도 양철의 제조방법 및 이를 이용한 양철 |
| KR20230091461A (ko) * | 2021-12-16 | 2023-06-23 | 주식회사 포스코 | 냉연강판 및 이의 제조 방법 |
| CN116408348B (zh) * | 2021-12-29 | 2026-03-06 | 上海梅山钢铁股份有限公司 | 一种预防极薄高碳t5料断带的生产方法 |
| CN115121609B (zh) * | 2022-06-29 | 2023-04-28 | 山东新美达科技材料有限公司 | 一种0.06mm冷轧钢箔的制造方法及设备 |
| CN115491594A (zh) * | 2022-09-06 | 2022-12-20 | 武汉钢铁有限公司 | 采用连续退火工艺生产超薄耐蚀超低碳软质镀锡板的方法 |
| CN115747633A (zh) * | 2022-09-29 | 2023-03-07 | 首钢集团有限公司 | 一种钢材及其制备方法、包装用钢、金属罐 |
| CN115921542A (zh) * | 2022-11-22 | 2023-04-07 | 江苏沙钢集团有限公司 | 从马口铁板材工艺上控制三片罐边部起皱的方法 |
| KR20240097321A (ko) * | 2022-12-20 | 2024-06-27 | 주식회사 포스코 | 캔용 Ni 도금강판 및 그 제조방법 |
| CN119525921B (zh) * | 2023-08-31 | 2025-11-04 | 上海梅山钢铁股份有限公司 | 一种基于钛和锰合金强化的车轮轮辋的闪光焊接方法 |
| CN120719216B (zh) * | 2025-08-20 | 2026-01-06 | 本钢板材股份有限公司 | 一种宽幅极薄规格马口铁及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234613A (ja) * | 1986-04-01 | 1987-10-14 | Kobe Steel Ltd | 移送金属板の加熱制御装置 |
| JPH0641683A (ja) * | 1992-04-06 | 1994-02-15 | Kawasaki Steel Corp | 缶用鋼板およびその製造方法 |
| JPH0788519A (ja) * | 1993-05-07 | 1995-04-04 | Kawasaki Steel Corp | エンドレス圧延における板クラウンの制御方法および圧延設備列 |
| JPH07110363B2 (ja) * | 1991-05-13 | 1995-11-29 | 住友金属工業株式会社 | 連続圧延方法 |
| JPH07115052B2 (ja) * | 1989-04-11 | 1995-12-13 | 川崎製鉄株式会社 | 表面処理鋼板用dr原板の冷間圧延機 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545849A (en) * | 1977-06-16 | 1979-01-17 | Nippon Steel Corp | Apparatus for heating end of metal strip piece |
| JPS5938338A (ja) * | 1982-08-30 | 1984-03-02 | Kawasaki Steel Corp | 高い降伏強度で絞り加工性に優れた缶用極薄鋼板の製造方法 |
| JPH0763724B2 (ja) * | 1984-05-21 | 1995-07-12 | 株式会社日立製作所 | 熱間鋼片の連続熱間圧延方法及び装置 |
| JPS62161404A (ja) * | 1986-01-08 | 1987-07-17 | Sumitomo Metal Ind Ltd | 連続熱間圧延方法 |
| US4931106A (en) * | 1987-09-14 | 1990-06-05 | Kawasaki Steel Corporation | Hot rolled steel sheet having high resistances against secondary-work embrittlement and brazing embrittlement and adapted for ultra-deep drawing and a method for producing the same |
| JPH01177363A (ja) * | 1987-12-29 | 1989-07-13 | Nkk Corp | 缶用光沢ドライ鍍金鋼板 |
| JPH01258802A (ja) * | 1988-04-07 | 1989-10-16 | Sumitomo Metal Ind Ltd | 熱間仕上圧延方法 |
| JPH0619104B2 (ja) * | 1988-06-24 | 1994-03-16 | 川崎製鉄株式会社 | 熱間シートバーの圧延方法 |
| NL8802892A (nl) * | 1988-11-24 | 1990-06-18 | Hoogovens Groep Bv | Werkwijze voor het vervaardigen van vervormingsstaal en band vervaardigd daarmee. |
| JPH0421741A (ja) * | 1990-05-15 | 1992-01-24 | Kawasaki Steel Corp | 3ピース缶用鋼板及び3ピース缶の製造方法 |
| JP3119692B2 (ja) * | 1990-11-08 | 2000-12-25 | 株式会社日立製作所 | 連続式熱間帯鋼圧延設備及び圧延方法 |
| JP3247139B2 (ja) * | 1992-04-06 | 2002-01-15 | 川崎製鉄株式会社 | 耐食性に優れた缶用鋼板およびその製造方法 |
| EP0565066B1 (en) * | 1992-04-06 | 1997-07-02 | Kawasaki Steel Corporation | A tin mill black plate for canmaking, and method of manufacturing |
| JPH05295482A (ja) * | 1992-04-22 | 1993-11-09 | Nippon Steel Corp | 微小濃度の溶液中で優れた耐食性を示す缶用鋼板 |
| JP2778875B2 (ja) * | 1992-06-04 | 1998-07-23 | 三菱重工業株式会社 | ロールクロス式タンデム圧延機列 |
| JP3167439B2 (ja) * | 1992-08-07 | 2001-05-21 | 川崎製鉄株式会社 | エンドレス圧延方法 |
| DE69312223T2 (de) * | 1992-11-10 | 1998-02-19 | Mitsubishi Heavy Ind Ltd | Verfahren zur Glanzbearbeitung von Blechoberflächen und Verfahren zum Kaltwalzen von metallischen Materialien |
| JPH06142705A (ja) * | 1992-11-12 | 1994-05-24 | Kawasaki Steel Corp | 熱間圧延鋼板 |
| JP3190477B2 (ja) * | 1993-05-21 | 2001-07-23 | 新日本製鐵株式会社 | 高表面品位缶用めっき原板製造方法 |
| JP2905400B2 (ja) * | 1994-06-17 | 1999-06-14 | 川崎製鉄株式会社 | 熱間圧延における鋼片の接合方法およびその装置 |
| DE69423713T2 (de) * | 1993-12-21 | 2000-07-13 | Kawasaki Steel Corp., Kobe | Verfahren zum Herstellen von dünnen Stahlblechen mit niedriger planarer Anisotropie für Dosen |
| US5725697A (en) * | 1993-12-24 | 1998-03-10 | Kawasaki Steel Corporation | Method of manufacturing cold-rolled can steel sheet having less planar anisotropy and good workability |
| JP3464521B2 (ja) * | 1994-03-23 | 2003-11-10 | 新日本製鐵株式会社 | 細粒熱延鋼板およびその製造方法 |
| FR2718130B1 (fr) * | 1994-04-05 | 1996-06-21 | Europ Propulsion | Procédé pour l'application d'une protection anti-oxydation sur des disques de frein en matériau composite contenant du carbone. |
| JPH0860242A (ja) * | 1994-08-17 | 1996-03-05 | Nippon Steel Corp | 製缶性と耐圧強度に優れたdi缶用鋼板の製造方法 |
| JPH0866701A (ja) * | 1994-08-29 | 1996-03-12 | Nippon Steel Corp | 低クラウン鋼板の製造方法 |
| FR2728490B1 (fr) * | 1994-12-21 | 1997-01-24 | Lorraine Laminage | Procede de fabrication d'une bande d'acier destinee a la fabrication par emboutissage et re-emboutissage de recipients en acier |
| JP5717606B2 (ja) | 2011-10-28 | 2015-05-13 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
| JP7110363B2 (ja) | 2018-02-09 | 2022-08-01 | エシロール アテルナジオナール | カプセル封入された光吸収剤のナノ粒子、その調製方法、及びナノ粒子を含む眼鏡用レンズ |
-
1997
- 1997-03-14 US US08/952,013 patent/US6042952A/en not_active Expired - Lifetime
- 1997-03-14 EP EP97908491A patent/EP0826436A4/en not_active Withdrawn
- 1997-03-14 CN CNB971905363A patent/CN1160163C/zh not_active Expired - Lifetime
- 1997-03-14 KR KR1019970708151A patent/KR19990014807A/ko not_active Ceased
- 1997-03-14 WO PCT/JP1997/000826 patent/WO1997033706A1/ja not_active Ceased
- 1997-03-17 JP JP06302397A patent/JP3249760B2/ja not_active Expired - Fee Related
-
2000
- 2000-07-24 JP JP2000222418A patent/JP4538914B2/ja not_active Expired - Fee Related
-
2001
- 2001-05-21 JP JP2001151756A patent/JP4407081B2/ja not_active Expired - Fee Related
-
2010
- 2010-01-20 JP JP2010009586A patent/JP2010138492A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234613A (ja) * | 1986-04-01 | 1987-10-14 | Kobe Steel Ltd | 移送金属板の加熱制御装置 |
| JPH07115052B2 (ja) * | 1989-04-11 | 1995-12-13 | 川崎製鉄株式会社 | 表面処理鋼板用dr原板の冷間圧延機 |
| JPH07110363B2 (ja) * | 1991-05-13 | 1995-11-29 | 住友金属工業株式会社 | 連続圧延方法 |
| JPH0641683A (ja) * | 1992-04-06 | 1994-02-15 | Kawasaki Steel Corp | 缶用鋼板およびその製造方法 |
| JPH0788519A (ja) * | 1993-05-07 | 1995-04-04 | Kawasaki Steel Corp | エンドレス圧延における板クラウンの制御方法および圧延設備列 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0826436A4 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286688A (zh) * | 2010-06-21 | 2011-12-21 | 宝山钢铁股份有限公司 | 一种高硬度镀锡原板用钢及其制造方法 |
| CN103433278A (zh) * | 2013-08-13 | 2013-12-11 | 永鑫精密材料(无锡)有限公司 | 一种led行业用低碳钢精密冷轧钢带生产方法 |
| CN103433278B (zh) * | 2013-08-13 | 2015-08-26 | 永鑫精密材料(无锡)有限公司 | 一种led行业用低碳钢精密冷轧钢带生产方法 |
| CN109440015A (zh) * | 2018-11-12 | 2019-03-08 | 包头钢铁(集团)有限责任公司 | 一种400MPa级冷轧滑轨钢及其制造方法 |
| CN111112329A (zh) * | 2020-01-03 | 2020-05-08 | 江苏贯森新材料科技有限公司 | 一种超硬不锈钢的冷轧方法 |
| CN114345935A (zh) * | 2021-12-28 | 2022-04-15 | 浙江精瑞工模具有限公司 | 一种高速钢轧制方法 |
| CN114345935B (zh) * | 2021-12-28 | 2024-01-12 | 浙江精瑞工模具有限公司 | 一种高速钢轧制方法 |
| WO2023210822A1 (ja) * | 2022-04-29 | 2023-11-02 | 東洋鋼鈑株式会社 | 圧延表面処理鋼板の製造方法及び圧延表面処理鋼板 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001329342A (ja) | 2001-11-27 |
| JP2001059135A (ja) | 2001-03-06 |
| US6042952A (en) | 2000-03-28 |
| JP4538914B2 (ja) | 2010-09-08 |
| EP0826436A4 (en) | 2003-04-16 |
| JP3249760B2 (ja) | 2002-01-21 |
| CN1193293A (zh) | 1998-09-16 |
| JPH09327702A (ja) | 1997-12-22 |
| CN1160163C (zh) | 2004-08-04 |
| EP0826436A1 (en) | 1998-03-04 |
| JP2010138492A (ja) | 2010-06-24 |
| KR19990014807A (ko) | 1999-02-25 |
| JP4407081B2 (ja) | 2010-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4538914B2 (ja) | 極薄鋼板用熱延鋼板の製造方法 | |
| KR100615380B1 (ko) | 캔용 강판 및 그 제조방법 | |
| WO2013008457A1 (ja) | 缶用鋼板およびその製造方法 | |
| JP2006265583A (ja) | 熱間プレス用熱延鋼板およびその製造方法ならびに熱間プレス成形部材の製造方法 | |
| JP2000160289A (ja) | 缶用鋼板およびその製造方法 | |
| JPH1046243A (ja) | 缶用鋼板の製造方法 | |
| KR100274301B1 (ko) | 도금강판의제조방법 | |
| KR20220004196A (ko) | 캔용 강판 및 그의 제조 방법 | |
| JP3377825B2 (ja) | 缶用鋼板およびその製造方法 | |
| JP5176599B2 (ja) | 建材用極薄冷延鋼板およびその製造方法 | |
| JP4211129B2 (ja) | 高速溶接性に優れた缶用鋼板およびその製造方法 | |
| JPH05287449A (ja) | 耐食性に優れた缶用鋼板およびその製造方法 | |
| JPH11315343A (ja) | 溶接缶用スリット鋼帯およびその製造方法ならびにスリット鋼帯用冷延鋼帯コイル | |
| JP6421773B2 (ja) | 缶用鋼板およびその製造方法 | |
| JP2015151620A (ja) | 缶用鋼板および缶用鋼板の製造方法 | |
| JP4356132B2 (ja) | 缶用鋼板用熱延母板およびその製造方法 | |
| JP6060603B2 (ja) | フランジ加工性に優れた高強度缶用鋼板およびその製造方法 | |
| JP3285098B2 (ja) | 缶用鋼板の製造方法 | |
| JP3750214B2 (ja) | プレス破断の発生しがたい成形性に優れた極薄缶用鋼板およびその製造方法 | |
| JPH0421741A (ja) | 3ピース缶用鋼板及び3ピース缶の製造方法 | |
| JP3290693B2 (ja) | 溶接性に優れた缶用鋼板およびその製造方法ならびに製缶方法 | |
| CN120989514A (zh) | 高品质420MPa级低合金高强钢及其生产方法 | |
| JPH03285044A (ja) | 3ピース缶用鋼板及び3ピース缶の製造方法 | |
| CN116555676A (zh) | 用于制管的轧硬钢的制备方法、轧硬钢以及镀锌管 | |
| JP5464223B2 (ja) | 溶接缶用表面処理鋼板及びその製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 97190536.3 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN KR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 08952013 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1997908491 Country of ref document: EP Ref document number: 1019970708151 Country of ref document: KR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWP | Wipo information: published in national office |
Ref document number: 1997908491 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019970708151 Country of ref document: KR |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1997908491 Country of ref document: EP |
|
| WWR | Wipo information: refused in national office |
Ref document number: 1019970708151 Country of ref document: KR |

















