EP0329611B1 - Procédé de revêtement en continu d'un substrat filiforme d'acier par immersion de ce substrat dans un bain de métal de revêtement en fusion - Google Patents

Procédé de revêtement en continu d'un substrat filiforme d'acier par immersion de ce substrat dans un bain de métal de revêtement en fusion Download PDF

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Publication number
EP0329611B1
EP0329611B1 EP89810103A EP89810103A EP0329611B1 EP 0329611 B1 EP0329611 B1 EP 0329611B1 EP 89810103 A EP89810103 A EP 89810103A EP 89810103 A EP89810103 A EP 89810103A EP 0329611 B1 EP0329611 B1 EP 0329611B1
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EP
European Patent Office
Prior art keywords
substrate
steel
temperature
wire
bath
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
EP89810103A
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German (de)
English (en)
French (fr)
Other versions
EP0329611A1 (fr
Inventor
Michel Kornmann
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.)
Battelle Memorial Institute Inc
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Battelle Memorial Institute Inc
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Filing date
Publication date
Application filed by Battelle Memorial Institute Inc filed Critical Battelle Memorial Institute Inc
Publication of EP0329611A1 publication Critical patent/EP0329611A1/fr
Application granted granted Critical
Publication of EP0329611B1 publication Critical patent/EP0329611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/48—Metal baths
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/58—Continuous furnaces for strip or wire with heating by baths
    • 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
    • C21D9/64—Patenting furnaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0035—Means for continuously moving substrate through, into or out of the bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0036—Crucibles
    • C23C2/00361—Crucibles characterised by structures including means for immersing or extracting the substrate through confining wall area
    • C23C2/00362—Details related to seals, e.g. magnetic means
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite

Definitions

  • the present invention relates to a process for the continuous coating of a threadlike steel substrate by immersion of this substrate in a bath of molten coating metal, according to which a coating metal is chosen whose melting point is greater than the austenization temperature of the steel, the steel substrate is preheated to a temperature lower than that of said bath, it is passed through this bath to coat it and bring it at the same time to its austenization temperature.
  • the continuous coating of a filiform substrate by immersion involves the rapid passage of this substrate, whose temperature is lower than that of the molten coating metal, through a spout of a crucible filled with this molten metal which solidifies quickly in contact with this relatively cooler substrate.
  • This technique has already been used to form a coating on a wire whose cross section is greater than that desired, this wire then being re-woven once coated to bring it to the final section.
  • this wire it is necessary that the crystal structure of the steel is sufficiently softened, which implies that this wire has previously undergone heating to its austenization temperature followed by controlled cooling as a function of the composition of the steel in order to give it the desired crystalline structure.
  • this technique has been applied with coating metals whose melting point was below the temperature austenizing the steel, so that the steel wire was subjected to the heat treatment intended to form the structure necessary to make it drawable, prior to coating, since this coating was carried out at a temperature below that of austenization.
  • the cooling of the wire after coating can be carried out very quickly by passage through a liquid, without modifying the crystalline structure of the steel obtained prior to coating. Since the coating process occurs by passing the wire vertically from bottom to top, rapid cooling of the wire makes it possible to reduce the height of the installation, especially with high speeds of advance of the wire.
  • JP-5782467 It has also been proposed in JP-5782467 to carry out the austenization of a steel strip by passing this strip through a bath of a molten metal such as copper whose temperature is higher than the temperature d austenization.
  • the subject of this invention is a process for the continuous coating of a filiform steel substrate, by immersion of this substrate in a bath of molten coating metal according to claim 1.
  • Figure 1 is an elevational view of an installation for the implementation of this method.
  • Figures 2 and 3 are T.T.T. (transformation-temperature-time) of two types of steels.
  • the installation illustrated in FIG. 1 comprises a supply coil 1 of steel wire 2.
  • This steel wire 2 passes over a first guide roller 3 to go through different treatment stations 4, 5 and 6 intended respectively for cleaning, rinsing and drying the wire 2.
  • a drawing capstan 3a brings the steel wire 2 to the below a graphite tank 7 of a crucible 8 containing a bath 9 of molten metal heated by a heating body 10 housed in the wall of the crucible 8.
  • the steel wire 2 Before crossing the spout 7 of the crucible provided with two openings 11 and 12 aligned vertically for this purpose, the steel wire 2 passes through a tubular conduit 13 whose entry is controlled by a seal 14.
  • This tubular conduit is connected to a source of protective gas 15 for example H2 + N2 and is surrounded by an electric coil 16 for preheating supplied by a high frequency HF source.
  • the maximum wire temperature is a function of the preheating temperature and the thickness of the deposited layer.
  • cooling is carried out relatively quickly for mild steels with less than 0.1% carbon.
  • too rapid cooling is not acceptable since these steels must be maintained at a temperature of the order of 550 ° C., corresponding to the maximum temperature of the TTT curve, for ten seconds to obtain the desired fine-grained ferrite-perlite crystal structure.
  • this temperature is obtained by passing the steel wire coated with copper or brass in a bath of molten lead.
  • this solution is difficult to implement, this is the reason why it is proposed to use a fluidized bed 17, which can be supplied by an air circuit 18 associated with a heating device 19. Part of the heat required comes directly from the wire 2 itself.
  • a thermal probe 20 makes it possible to regulate the temperature of the air as a function of the quantity of heat necessary to maintain the temperature of the fluidized bed at 540 ° C.
  • a second cooling system 21 with circulation of water is disposed above the fluidized bed 17 to complete the cooling of the wire 2 before it passes over a guide roller 3b which is suspended by means of a elastic tension regulation system 22 of wire 2 which is used to regulate the drawing capstan 3a, so as to obtain a low tension during coating. From this roller, the wire 2 is led to a storage drum 23. Since a mild steel wire heated to 700 ° C-800 ° C becomes very fragile in contact with molten copper in particular, the tension exerted by the voltage regulator 22 must not exceed 15 MPa.
  • FIGS. 2 and 3 respectively show and schematically the T.T.T. (transformation-time-temperature) of mild steel and steel with higher carbon content.
  • the curve for controlled cooling of the steel wire coated with a metal whose melting point is higher than the austenization temperature of the steel is plotted on each of these diagrams.
  • three metals and alloys are used, namely, copper, brass and silver.
  • the mild steel wire coated with copper finds applications in the electrical field, as telephone wire, electrically conductive spring, ground wire of an electrical transmission conduit for example.
  • the 0.7% carbon steel wire covered with brass finds particular application as a reinforcement wire for tires with radial carcass.
  • the mild steel wire coated with silver finds electronic applications.
  • the coated wire has a section substantially greater than that of the finished wire so that the thickness of the coating metal decreases at the same time as the diameter of the wire during the re-drawing of this wire. This operation does not cause deterioration of the deposited metal layer if it adheres well to this wire.
  • This example relates to the deposition of a layer of copper on a mild steel wire.
  • a steel wire with less than 0.1% carbon, 1 mm in diameter, is used for this purpose.
  • the first operation consists of an alkaline electrochemical degreasing at 60 ° C followed by an attack in an HCl bath and drying.
  • the actual coating phase which consists of preheating the wire 2 using the coil 16 supplied with high frequency current, the wire 2 passing at this time the tubular conduit 13 in which prevails an atmosphere of 20% H2 + N2 at a pressure of 5 mm of water column.
  • the temperature of the steel wire 2 is thus brought to 740 ° C. at the moment when it enters the beak 7 of the crucible 8 through the opening 11.
  • the beak of the crucible contains 70 g of liquid Cu at the temperature of 1120 ° C. corresponding to a 5 mm thick liquid bath.
  • the wire is cooled in air for 10 seconds before entering the water cooling enclosure 21.
  • the running speed of the wire 2 is 30 m / min.
  • the copper layer obtained is a 200 ⁇ m concentric layer adhering around the steel wire 2.
  • the wire can then be drawn with an 80% reduction in its section.
  • the steel wire used in this example is a 0.7% carbon steel wire with a diameter of 1 mm.
  • the preparation of this wire is identical to that of the wire of Example 1 as well as its preheating.
  • the spout 7 of the crucible 8 contains a layer of 40 mm of brass comprising 60% Cu and 40% Zn at a temperature of 1000 ° C.
  • the brass-coated wire enters the fluidized bed 17, the temperature of which is maintained at 540 ° C.
  • the wire feed speed is 30 m / min and the fluidized bed offers a path length of 5 m so that the wire is kept at this temperature of the order of 550 ° C for 10 s, the time to bring this steel in the fine-grained ferrite-cementite zone.
  • the layer obtained at a thickness of 15 ⁇ m formed concentrically around the steel wire is adhered to its surface.
  • a mild steel wire with less than 0.1% carbon 1 mm in diameter is coated with a layer of Ag.
  • This wire is cleaned and preheated under the same operating conditions as those of the previous examples.
  • the spout 7 of the crucible contains 70 g of liquid Ag at 990 ° C in an atmosphere of 10% H2 + N2.
  • Example 2 The cooling takes place in air as in Example 1 and an adherent and concentric layer of Ag 50 ⁇ m thick is obtained.
  • Each of the wires obtained according to one of the preceding examples has a diameter several times greater than the desired diameter.
  • the wire of Example 2 is then re-drawn to be brought to a final diameter of 0.25 mm.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating With Molten Metal (AREA)
  • Wire Processing (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP89810103A 1988-02-09 1989-02-08 Procédé de revêtement en continu d'un substrat filiforme d'acier par immersion de ce substrat dans un bain de métal de revêtement en fusion Expired - Lifetime EP0329611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH453/88A CH675257A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-02-09 1988-02-09
CH453/88 1988-02-09

Publications (2)

Publication Number Publication Date
EP0329611A1 EP0329611A1 (fr) 1989-08-23
EP0329611B1 true EP0329611B1 (fr) 1992-05-20

Family

ID=4187371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810103A Expired - Lifetime EP0329611B1 (fr) 1988-02-09 1989-02-08 Procédé de revêtement en continu d'un substrat filiforme d'acier par immersion de ce substrat dans un bain de métal de revêtement en fusion

Country Status (7)

Country Link
US (1) US5705228A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0329611B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP2771573B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR890013206A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH675257A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE68901546D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MY (1) MY104399A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0755331B2 (ja) * 1991-11-19 1995-06-14 修司 西浦 超高強度極細高炭素鋼線の製造方法
US5437748A (en) * 1994-09-15 1995-08-01 The Goodyear Tire & Rubber Company Process for patenting and brass plating steel wire
DE19545259A1 (de) * 1995-11-24 1997-05-28 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von dünnen Metallsträngen
EP0885975A1 (fr) * 1997-06-16 1998-12-23 M3D Société Anonyme Procédé de traitement thermique en continu d'un fil ou ruban métallique
US6270597B1 (en) * 1998-12-16 2001-08-07 Praxair Technology, Inc. Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed
CA2261100A1 (en) 1999-02-03 2000-08-03 The I.C.E. Group Molten metal immersion bath for wire fabrication
US6491770B1 (en) * 2000-05-31 2002-12-10 James M. Knott, Sr. Strand galvanizing line
EP2360286A1 (en) 2010-02-15 2011-08-24 Bogumil Miklasz The method of production a coated wire
US9212414B2 (en) 2011-05-27 2015-12-15 Ak Steel Properties, Inc. Meniscus coating apparatus and method
GB201212251D0 (en) * 2012-07-10 2012-08-22 Kts Wire Ltd Improvements in and relating to elongate products and methods of making them

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CH648601A5 (fr) * 1979-07-31 1985-03-29 Battelle Memorial Institute Procede de revetement en continu d'un substrat metallique sur une partie au moins de sa surface par un autre metal et dispositif pour la mise en oeuvre de ce procede.
JPS5782467A (en) * 1980-11-08 1982-05-22 Nisshin Steel Co Ltd Manufacture of heat treated plated steel strip
JPS6058787B2 (ja) * 1981-03-10 1985-12-21 興国鋼線索株式会社 線状体の高速浸漬被覆方法およびその装置
JPS59170250A (ja) * 1983-03-15 1984-09-26 Sumitomo Electric Ind Ltd 銅被覆鋼線の製造方法
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WO1986005213A1 (fr) * 1985-03-04 1986-09-12 Battelle Memorial Institute Procede pour former selectivement au moins une bande de revetement d'un metal ou alliage sur un substrat d'un autre metal
GB8505491D0 (en) * 1985-03-04 1985-04-03 Bekaert Sa Nv Heat treatment of steel
JPH06943B2 (ja) * 1985-07-31 1994-01-05 株式会社フジクラ 被覆鋼線の製造方法
CH669186A5 (fr) * 1986-12-13 1989-02-28 Battelle Memorial Institute Procede pour revetir une fibre optique d'un manchon metallique, protecteur et dispositif de revetement correspondant.
US4830683A (en) * 1987-03-27 1989-05-16 Mre Corporation Apparatus for forming variable strength materials through rapid deformation and methods for use therein

Also Published As

Publication number Publication date
EP0329611A1 (fr) 1989-08-23
DE68901546D1 (de) 1992-06-25
JP2771573B2 (ja) 1998-07-02
JPH01225759A (ja) 1989-09-08
MY104399A (en) 1994-03-31
CH675257A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-09-14
US5705228A (en) 1998-01-06
KR890013206A (ko) 1989-09-22

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