US3216106A - Process and apparatus for covering thin metal plates - Google Patents

Process and apparatus for covering thin metal plates Download PDF

Info

Publication number
US3216106A
US3216106A US175243A US17524362A US3216106A US 3216106 A US3216106 A US 3216106A US 175243 A US175243 A US 175243A US 17524362 A US17524362 A US 17524362A US 3216106 A US3216106 A US 3216106A
Authority
US
United States
Prior art keywords
vat
metal plate
deposit
vacuum
covering
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.)
Expired - Lifetime
Application number
US175243A
Other languages
English (en)
Inventor
Daubersy Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cockerill Ougree Providence et Esperance Longdoz
Original Assignee
SA Metallurgique dEsperance Longdoz
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SA Metallurgique dEsperance Longdoz filed Critical SA Metallurgique dEsperance Longdoz
Application granted granted Critical
Publication of US3216106A publication Critical patent/US3216106A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • 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
    • C21D8/0236—Cold rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0486—Operating the coating or treatment in a controlled atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
    • 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 
    • C21D8/0284—Application of a separating or insulating coating
    • 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
    • Y10T29/49982—Coating
    • Y10T29/49986—Subsequent to metal working

Definitions

  • PROCESS AND APPARATUS FOR COVERING THIN METAL PLATES Filed Feb. 23, 1962 INVENTOR Jed/7p fimzierzs y United States Patent 3,216,106 PROCESS AND APPARATUS FOR COVERING THIN METAL PL'ATES Jean Daubersy, Seraing, Belgium, assiguor to SA.
  • Metallurgique dEsperance-Longdoz, vide, Belgium Filed Feb. 23, 1962, Ser. No. 175,243 Claims priority, application Belgium, Feb. 24, 1961, 600,644 3 Claims. (Cl. 29-528)
  • the present invention relates to a process and an apparatus for covering thin metal plates.
  • the deposit must Wet the plate and adhere thereto perfectly. In many cases this is not directly possible and there is used a deposit or intermediate treatment which improves the Wetting and/ or the adhesion. It may be mentioned, for example, the adhesive used for pasting the sheets of plastic as well as the phosphatation prior to painting.
  • the present invention afi'ords an economical solution to the ditficulties mentioned above due to a process of fabrication comprising an entirely new cycle.
  • the process, object of the present invention is essentially characterized by a cycle of fabrication comprising the four following phases:
  • the operation of depositing a protective coating on the metal plate may, according to an advantageous variant, be effected by placing the open coil in a vat in which a vacuum is created and into which there is then introduced, always under vacuum, the material which is to serve to constitute the protective coating.
  • the material which is to serve to constitute the protective coating is first degasified, for example, under vacuum.
  • the present invention has likewise a further object to provide an apparatus for placing the process in operation.
  • the apparatus, object of the present invention is essentially characterized in that it comprises in the following order: a cold roller, an apparatus for non-aging annealing of the open coils of sheet metal, a device for depositing on the coils an adhesive layer of a protective material, a reservoir and a circuit for supplying this material, and a skinpass roller.
  • the vat in which the covering operation is carried out and in which are deposited the coil or coils in open state must permit the application of vacuum. It comprises, therefore, a tight lid of a sufiicient diameter to permit the introduction of the open coil and is connected at the top to an apparatus for producing vacuum.
  • the vacuum to be realized should not, furthermore, be very high, and it is limited to the industrial level of vacuum corresponding to placing in operation of a single machine or ejector, for example few millimeters of mercury. This degree of vacuum does not offer any difiiculties in the matter of tightness of the joints.
  • the vat is connected by one or more conduits to one or more reservoirs containing liquid materials, or those to be rendered liquid by heating, which will serve for treating or covering the metal plate. All these conduits are provided with stop cocks or regulating valves necessary for cutting off and regulating the vacuum, and to isolate the flow of these materials in one direction or the other.
  • the process of covering is carried out as follows.
  • This operation removes the air from the surface of the metal plate and the small defects which are present therein are much more easily reached, and covered by the covering or treating liquids.
  • the liquid enters the vat under the influence of the differences in pressure, the degree of vacuum being then regulated as a function of the volatility of the elements constituting these liquid materials.
  • the liquid thus penetrates without interruption, the free space between the spirals and all the traces of air which might be present in the liquid and could cause the formation of small bubbles in the deposit are eliminated.
  • the materials particularly adapted to form such bubbles for example the plastic materials
  • process of the invention is particularly flexible, and it is possible, for example, to complete the installation by devices for insufiiation of hot or cold air intended either to regulate the temperature of the coil or to accelerate the solidification of the deposits.
  • vat with an arrangement for condensing and recovering the vapors which escape during the filling, the emptying or the drying thereof.
  • the surface of the cylinders utilized for the skinpass may be prepared so as to incrust covering designs of any type.
  • FIG. 1 represents a cycle of operation according to the invention
  • FIG. 2 representing a detail of FIG. 1.
  • the successive operations of the treatment is represented by the successive various parts 1 to 6 of FIG. I, the metal plate being moved in the direction of the arrows.
  • the metal plate which is to be subjected to the treatment according to the invention is cold rolled at 1 and immediately thereafter is placed in the form of an open coil at 2 and moved into a furnace 3 where it undergoes the annealing operation according to the invention.
  • the coil On leaving the furnace 3 the coil is subjected to the operation of a vacuum, represented diagrammatically at 4. After this the same coil is recoiled in nonopen form at 5 and the metal plate is subjected to a skinpass operation at 6.
  • the covering apparatus is shown in detail in FIG. 2.
  • the metal plate in the form of an open coil 10
  • the vat 13 the bottom of which is connected by a conduit to a reservoir 8 containing the material serving for covering the metal plate.
  • the valve 9 is closed.
  • the lid 11 is placed on the vat 13 in such a manner that the closure will be tight which is obtained by means of the joint 12.
  • the vacuum is produced in the said vat by means of suction acting on the interior of this vat through a pipe line connected to the lid 11.
  • the valve 7 places the interior of the vat in communication with the aspirating apparatus. Once the necessary vacuum is obtained the valve 9 is opened and the coveringv material contained in the reservoir 8 forced by suction into the vat 13 where it covers the coil 10.
  • valve 7 is closed and the interior of the vat 13 is placed in communication with the outside air, the overflow of covering material returns to the reservoir 8, the valve 9 is closed and the coil 10 is withdrawn from the vat.
  • the said coil is now ready for the following operation represented by the parts 5 and 6.
  • a discontinuous process for covering thin metal plates with a protective non-metallic deposit comprising the successive steps of cold rolling the metal plate, annealing the metal plate in open coils in a furnace atmosphere with a base of nitrogen, hydrogen and water vapor comprising quantities of hydrogen and water vapors sufficient so that the surface of the metal plate will be absolutely free from any trace of grease and carbon and any oxidation, removing the open coil in the annealed state from the furnace and placing the coil in a vat wherein vacuum is created and then introducing into said vat under vacuum the material which is to serve to constitute the protective deposit, and a subjecting the coated plate to skin-pass operation when the deposit thereon has acquired a suflicient hardness.
  • Apparatus for treating metal plates comprising a cold roller, a device for non-aging annealing the open coils of the metal plates, .a vat for receiving an annealed open coil, means for establishing vacuum in said vat, a reservoir containing a protective material, means supplying said protective material on said metal plates for depositing thereon an adhe sive layer of said material 2,797,476 7/57 Sendzir ir 117-11 9 XR and a skin-pass roller for said protective material on the 3,042,546 7/ 62 Hinningsen 1171 19 XR coated metal plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
US175243A 1961-02-24 1962-02-23 Process and apparatus for covering thin metal plates Expired - Lifetime US3216106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE600644A BE600644A (fr) 1961-02-24 1961-02-24 Procédé et dispositif de recouvrement des tôles fines

Publications (1)

Publication Number Publication Date
US3216106A true US3216106A (en) 1965-11-09

Family

ID=3845224

Family Applications (1)

Application Number Title Priority Date Filing Date
US175243A Expired - Lifetime US3216106A (en) 1961-02-24 1962-02-23 Process and apparatus for covering thin metal plates

Country Status (5)

Country Link
US (1) US3216106A (de)
AT (1) AT245326B (de)
BE (1) BE600644A (de)
LU (1) LU41091A1 (de)
SE (1) SE302907B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526817A (en) * 1982-11-01 1985-07-02 Material Sciences Corporation Process for surface diffusing steel products in coil form

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898739A (en) * 1929-02-11 1933-02-21 George J Meyer Strip metal processing
US2271192A (en) * 1937-11-18 1942-01-27 Sherka Chemical Co Inc Process of treating plastic sheets
US2797476A (en) * 1952-06-17 1957-07-02 Sendzimir Tadeusz Process and apparatus for treating metallic strips
US3042546A (en) * 1958-02-27 1962-07-03 Mc Graw Edison Co Method and apparatus for impregnation of porous articles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898739A (en) * 1929-02-11 1933-02-21 George J Meyer Strip metal processing
US2271192A (en) * 1937-11-18 1942-01-27 Sherka Chemical Co Inc Process of treating plastic sheets
US2797476A (en) * 1952-06-17 1957-07-02 Sendzimir Tadeusz Process and apparatus for treating metallic strips
US3042546A (en) * 1958-02-27 1962-07-03 Mc Graw Edison Co Method and apparatus for impregnation of porous articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526817A (en) * 1982-11-01 1985-07-02 Material Sciences Corporation Process for surface diffusing steel products in coil form

Also Published As

Publication number Publication date
AT245326B (de) 1966-02-25
SE302907B (de) 1968-08-05
BE600644A (fr) 1961-08-24
LU41091A1 (de) 1962-03-12

Similar Documents

Publication Publication Date Title
US2332309A (en) Gaseous metal deposition
US10041140B2 (en) Method for continuous thermal treatment of a steel strip
JPH01231972A (ja) 送水用導管系のクリーニング及び塗装方法
US2390007A (en) Apparatus for continuously hot dip coating of tin on coiled strip
US2199418A (en) Surface treatment of metals
US3123493A (en) Art of bonding of vacuum metallized coatings
US3216106A (en) Process and apparatus for covering thin metal plates
US3730758A (en) Method of protecting ferrous strip in hot-dip processes
US3809570A (en) Galvanizing technique for wire and the like
JPS6271571A (ja) 金属物品の重防食処理方法
RU2117717C1 (ru) Способ нанесения цинкового покрытия и технологическая линия для его осуществления
US2046036A (en) Method of coating ferrous bodies with other metals
US3121019A (en) Galvanizing one side of a strip of metal
US832288A (en) Method of treating metal pipe.
US2906018A (en) Finishing machine and method for use in the hot dip metallic coating of steel strip, and coated strip
US1675134A (en) Metal-coated sheet and method of making the same
GB796242A (en) Coating of strand-like metal bodies with molten metal
US1936247A (en) Process of applying corrosion resisting coatings to pipes
US4264652A (en) Method for locally galvanizing a piece of metal
US1914774A (en) Method of coating vessels
US3698938A (en) Method of cooling hot dipped galvanized,continuously moving workpieces
US1254796A (en) Coating of pipes.
US2276101A (en) Art of treating and coating metals
US2353019A (en) Method of etching steel
US1371445A (en) Lead-coating process