EP0879100A1 - Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrens - Google Patents
Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrensInfo
- Publication number
- EP0879100A1 EP0879100A1 EP97900893A EP97900893A EP0879100A1 EP 0879100 A1 EP0879100 A1 EP 0879100A1 EP 97900893 A EP97900893 A EP 97900893A EP 97900893 A EP97900893 A EP 97900893A EP 0879100 A1 EP0879100 A1 EP 0879100A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- winding
- roll stand
- rolling
- reversing
- 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.)
- Granted
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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before 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
- B21B1/22—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
- B21B1/30—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 non-continuous process
- B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-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
- B21B1/46—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 metal immediately subsequent to continuous casting
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/68—Furnace coilers; Hot coilers
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- the invention relates to a method for reversing rolling of strip, in particular steel strip, the strip being rolled in a plurality of pass passes and wound into a bundle after each pass pass.
- a method of this type is described, for example, in DE-A-29 00 648.
- the strip is taken up by a winding device designed as a coiler after each roll pass.
- a winding device designed as a coiler after each roll pass.
- the invention aims to avoid these disadvantages and difficulties and has as its object to provide a method for reversing rolling of the type described in the introduction and a device for carrying out the method which make it possible, on the one hand, to use the reversing rolling device as best as possible over its entire service life, i.e. to maintain a rolling operation without interruptions and without loss of production volume and yet to achieve optimum temperature conditions for the strip to be rolled with the greatest possible energy saving.
- temperature differences between the strip ends as well as the strip edges and strip center pieces should be kept so low that they neither adversely affect the rolling process, the rolling devices, nor the quality of the strip.
- This object is achieved in a method of the type described in the introduction in that two or more strips are rolled alternately, while the rolling of one of the strips in at least one roll pass the other strip or the other strips remain in a waiting position wound into a bundle.
- the method according to the invention also enables lower final thicknesses to be achieved, e.g. without additional energy expenditure. Furthermore, an improvement of the geometrical product tolerances (profile, thickness, flatness) is possible in a simple manner and without much additional effort.
- the temperature compensation also minimizes the increase in rolling force when the strip ends are inserted into the roll stand and the roller bearings are less stressed.
- the tape or tapes prefferably be heat-balanced in a waiting position wound into a bundle, etc. including the tape end or the tape ends.
- the method according to the invention not only makes it possible to set optimal temperature conditions for the rolling, but it can also be used to improve the material properties of the strip before or after a stitch removal, i.e. to improve the physical properties of the strip or the structural structures of the strip, for example as a function of the thickness and quality of the rolling stock, etc. in that a heat treatment, in particular heating, is carried out for the tape or tapes in a waiting position wound into a bundle, etc. including the tape end or the tape ends.
- a heat treatment in particular heating
- a device for carrying out the method according to the invention is characterized by at least one reversing roll stand and at least three winding devices, at least two of which are provided on an inlet side of the reversing roll stand and at least one on the other inlet side of the reversing roll stand.
- two winding devices are provided on each inlet side of the reversing roll stand.
- the winding devices are advantageously equipped with a heat insulation jacket. However, they could also be installed in a heated room.
- the winding devices are expediently designed as reel furnaces and are preferably equipped with a heating device. To save energy, two winding devices are advantageously surrounded together by an insulating jacket.
- the winding device is expediently provided with a device that winds the tape end up and down.
- winding device is provided with an insulated, optionally heatable, largely closed inlet or outlet zone.
- At least one winding device is advantageously equipped with a protective gas device.
- a particularly advantageous application of the invention is given when using a method in conjunction with a continuous casting plant, a plant for this application being characterized in that, directly in line with the continuous casting plant, a device with at least one reversing roll stand and at least three winding devices, of which at least two is provided on an inlet side of the reversing roll stand and at least one on the other inlet side of the reversing roll stand.
- FIG. 1 showing a schematically illustrated arrangement of a device according to the invention in a side view.
- 2 and 3 show further embodiments in a representation analogous to FIG. 1.
- 4 to 6 the arrangement of a device according to the invention is shown in each case in a network with a continuous caster
- Fig. 1 shows an overall arrangement of a device for performing a reversing roll with a reversing roll stand 1, which can be designed either as a roughing stand or as a finishing stand (Steckel stand).
- a reversing roll stand 1 On one side 2 of the reversing roll stand 1, two winding devices designed as reel furnaces 3 and 3 'are arranged.
- a single winding device 3 " On the other side 4 of the reversing roll stand 1, only a single winding device 3 ", which is also designed as a reel furnace, is provided.
- a multiple stand in which the strip 9 or 9 'experiences two or more stitch approvals in one pass.
- the reel furnaces 3 to 3 are equipped with drivable reel mandrels 5 and are each equipped with a heat-insulated jacket 6. They may have heating devices 7 in order to maintain a certain temperature level in the interior 8, 8 'of each reel furnace 3 to 3".
- the reel furnaces 3 to 3 are preferably designed such that the strip ends of the strip 9, 9 'to be rolled can be completely drawn into the interior 8 of the reel furnaces 3 to 3".
- the reel ovens 3 to 3 have corresponding devices, such as drive rollers 10, which can grasp the end of the strip and pull them out of the respective reel oven 3 to 3", and so-called coil openers 11, which are wedge-shaped that can be adjusted to the wound coil 12 Devices - also called collar opening swords - which allow the strip end to be detached from the collar 12 and lead out of the interior 8 of each coiler oven 3 to 3 ".
- a collar opener 11 on the collar surface of a collar 12 wound on a coiler dome 5 are not used in more detail illustrated actuators.
- a 3 to 3 "reel furnace can also be provided with an insulated, possibly heatable inlet and outlet zone, which may be designed to be pivotable in order to accommodate the tape and the inlet or outlet Bring the exit zone out of the roller table area.
- the interiors 8 of the coiler furnaces 3 to 3 can advantageously be placed in a protective gas atmosphere by means of protective gas devices (not shown), so that scaling of the strips 9, 9 'can be prevented.
- two strips 9, 9 ' can be rolled alternately. While one strip 9 is being rolled, the other strip 9 'is in the waiting position in the second of the two coiler furnaces 3, 3' which are arranged adjacent to one another on the side 2 of the reversing roll stand 1. While the strip 9 'remains here until it is used for rolling, ie the other strip 9 is rolled in two or more pass passes, temperature compensation or heat treatment, possibly even under a protective gas atmosphere, can be carried out. When the second strip 9 'is then rolled, the first rolled strip 9 is in a waiting position wound up into a bundle and in turn can be subjected to a temperature compensation for subsequent rolling passes.
- two reel mandrels 5 are arranged adjacent and surrounded by a common heat protection housing 6. 2, the reel domes 5 are arranged in a horizontally adjacent arrangement and in FIG. 3 in a vertically adjacent arrangement.
- the invention can be implemented with particular advantage for the production of a hot strip in conjunction with a continuous casting plant. 4, 5 and 6 different variants of such composite systems are shown schematically.
- a continuous casting plant 13 with a mold 14, a roller guide track 15 and a separating device 16 arranged downstream of it is arranged downstream of a temperature compensation furnace 17 for receiving strips separated from the strand. If the strand 18, as it emerges from the mold 14, is not thin enough to be able to be wound in the solidified state, a roughing stand (not shown in more detail) for rolling a windable strand 18 is also provided in the continuous casting installation. Directly in the line of the continuous caster 13 there are arranged winding devices 3 to 3 ′ ′′ and a reversing roll stand 1 in between. According to the exemplary embodiment shown in FIG.
- the function is as follows: First, a belt 9 'separated from the strand 18 is fed directly into the temperature compensation furnace 17, etc. with a take-off speed substantially exceeding the continuous casting speed. After a temperature equalization, the strip 9 'is alternately rolled with a second strip 9, previously separated from the strand 18, in accordance with the method according to the invention.
- the method according to the invention makes it possible - as shown in FIG. 5 - to dispense with the temperature compensation furnace 17, namely the reel furnace 3 arranged first in the strand conveying direction can take over this function without the method according to the invention for reversing rolling being disturbed.
- at least two coiler furnaces 3, 3 'and 3 ", 3'" are arranged on each side 2 and 4 of the reversing roll stand.
- FIG. 6 shows a special design of a reel furnace 3 arranged first in the strand exit direction, which has its own strip inlet opening 19 and a separate strip outlet opening 20, similar to that shown in FIG. 3.
- the coiler mandrel 21 (here two coiler mandrels 21 are symmetrical Provided for the axis of symmetry) of this reel furnace 3 is by means of an actuating device in a winding start position I at the tape inlet opening 19 for the purpose of detecting the beginning of the tape and in an unwinding position II, in which a coil 12 wound on the reel dome 21 against a stationary pressure roller arranged or pressed on the reel oven 3 22 is pressed, movable, the pressure roller 22 being upstream in the unwinding direction of the tape outlet opening 20.
- a reel furnace of this type is described in more detail in Austrian patent application A 647/95
- two reel furnaces can also be arranged on the side 4 of the reversing roll stand 1, which gives the possibility of subjecting a strip 9 or 9 'to temperature compensation or heat treatment even after an odd number of roll passes . If more than two strips are to be rolled alternately, a corresponding number of coiler furnaces must be provided.
- the following example of a rolling schedule shows the time available for a strip 9 or 9 'for a heat treatment for two alternately rolled strips 9, 9' in a device according to FIG. 1.
- the rolling of each strip 9, 9 'takes place in seven passes each with a temperature compensation or a holding time which extends over two pass times.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0017996A AT405028B (de) | 1996-01-31 | 1996-01-31 | Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrens |
| AT179/96 | 1996-01-31 | ||
| AT17996 | 1996-01-31 | ||
| PCT/AT1997/000014 WO1997027952A1 (de) | 1996-01-31 | 1997-01-28 | Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0879100A1 true EP0879100A1 (de) | 1998-11-25 |
| EP0879100B1 EP0879100B1 (de) | 2001-10-17 |
Family
ID=3483619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97900893A Expired - Lifetime EP0879100B1 (de) | 1996-01-31 | 1997-01-28 | Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrens |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6134934A (de) |
| EP (1) | EP0879100B1 (de) |
| JP (1) | JP2000504276A (de) |
| KR (1) | KR19990082153A (de) |
| AT (1) | AT405028B (de) |
| DE (1) | DE59704961D1 (de) |
| WO (1) | WO1997027952A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10357622A1 (de) * | 2003-12-10 | 2005-07-07 | Sms Demag Ag | Verfahren und Anlage zum Walzen von Walzgut |
| DE102008003222A1 (de) * | 2007-09-13 | 2009-03-19 | Sms Demag Ag | Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE177747C (de) * | ||||
| US2658741A (en) * | 1949-04-11 | 1953-11-10 | Westfalenhutte Dortmund Ag | Rolling mill for rolling strips or bands and sheets of steel and nonferrous metals |
| AT177747B (de) * | 1949-05-20 | 1954-02-25 | Westfalenhuette Dortmund Ag | Walzwerk mit eingeschalteten Wickelöfen |
| DE1158024B (de) * | 1960-03-24 | 1963-11-28 | Verwaltungsgesellschaft Moelle | Warmblech-Walzwerk |
| SU537718A1 (ru) * | 1975-06-13 | 1976-12-05 | Устройство дл гор чей прокатки металлической полосы | |
| DE2600784C3 (de) * | 1976-01-10 | 1978-11-09 | Hoesch Werke Ag, 4600 Dortmund | Verfahren zum Walzen von Warmband und Warmbandwalzwerk zur Durchführung des Verfahrens |
| CA1095751A (en) * | 1978-10-03 | 1981-02-17 | George W. Tippins | Plate mill method and apparatus |
| JPS5659507A (en) * | 1979-10-22 | 1981-05-23 | Nippon Steel Corp | Cold rolling method for one-way electrical sheet |
| AT370777B (de) * | 1981-08-24 | 1983-05-10 | Voest Alpine Ag | Haspelofen |
| US4522050A (en) * | 1983-01-14 | 1985-06-11 | Tippins Machinery Company, Inc. | Three stand mini mill method and apparatus |
| JPS6289502A (ja) * | 1985-10-12 | 1987-04-24 | Sumitomo Metal Ind Ltd | 薄鋳片連続鋳造による鋼板の製造法 |
| JPS62248503A (ja) * | 1986-04-23 | 1987-10-29 | Hitachi Ltd | 重ね板圧延方法 |
| JP2502630B2 (ja) * | 1987-11-02 | 1996-05-29 | 株式会社日立製作所 | ステッルミル圧延設備 |
| JPH01127105A (ja) * | 1987-11-12 | 1989-05-19 | Sumitomo Heavy Ind Ltd | 熱間連続仕上用可逆式圧延設備 |
| DE3743057C1 (de) * | 1987-12-18 | 1988-09-01 | Krupp Gmbh | Verfahren und Anlage zum Herstellen von warmgewalztem Band aus stranggegossenem Vormaterial |
| DE3816469A1 (de) * | 1988-05-13 | 1989-11-23 | Schloemann Siemag Ag | Mehrstranggiessanlage mit nachgeordnetem kontiwalzwerk |
| JP2602291B2 (ja) * | 1988-07-29 | 1997-04-23 | 株式会社日立製作所 | 熱間圧延設備、及び圧延方法 |
| AT407123B (de) * | 1993-03-05 | 2000-12-27 | Voest Alpine Ind Anlagen | Haspelofen für ein warmband |
| AT403169B (de) * | 1995-04-13 | 1997-11-25 | Voest Alpine Ind Anlagen | Haspelofen für ein warmband |
-
1996
- 1996-01-30 US US09/117,511 patent/US6134934A/en not_active Expired - Fee Related
- 1996-01-31 AT AT0017996A patent/AT405028B/de not_active IP Right Cessation
-
1997
- 1997-01-28 KR KR19980705876A patent/KR19990082153A/ko not_active Ceased
- 1997-01-28 JP JP9527171A patent/JP2000504276A/ja active Pending
- 1997-01-28 WO PCT/AT1997/000014 patent/WO1997027952A1/de not_active Ceased
- 1997-01-28 EP EP97900893A patent/EP0879100B1/de not_active Expired - Lifetime
- 1997-01-28 DE DE59704961T patent/DE59704961D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9727952A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990082153A (ko) | 1999-11-15 |
| WO1997027952A1 (de) | 1997-08-07 |
| AT405028B (de) | 1999-04-26 |
| ATA17996A (de) | 1998-09-15 |
| US6134934A (en) | 2000-10-24 |
| DE59704961D1 (de) | 2001-11-22 |
| JP2000504276A (ja) | 2000-04-11 |
| EP0879100B1 (de) | 2001-10-17 |
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