ES353707A1 - Metallic coating method - Google Patents

Metallic coating method

Info

Publication number
ES353707A1
ES353707A1 ES353707A ES353707A ES353707A1 ES 353707 A1 ES353707 A1 ES 353707A1 ES 353707 A ES353707 A ES 353707A ES 353707 A ES353707 A ES 353707A ES 353707 A1 ES353707 A1 ES 353707A1
Authority
ES
Spain
Prior art keywords
strip
jet
metal
molten
coating
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
Application number
ES353707A
Other languages
Spanish (es)
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.)
Armco Inc
Original Assignee
Armco Inc
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 Armco Inc filed Critical Armco Inc
Publication of ES353707A1 publication Critical patent/ES353707A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18Removing excess of molten coatings from elongated material
    • C23C2/20Strips; Plates
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • C23C2/0034Details related to elements immersed in bath
    • C23C2/00342Moving elements, e.g. pumps or mixers
    • C23C2/00344Means for moving substrates, e.g. immersed rollers or immersed bearings
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • C23C2/0038Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • C23C2/0038Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • C23C2/004Snouts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

Ferrous metal strip is coated with molten metal by (a) cleaning the surface of the strip and bringing its temperature to that of the molten coating metal (b) passing the strip through a bath of molten coating metal and withdrawing it in a generally vertical path of travel (c) impinging a substantially laminar flow jet of gaseous fluid on the surface of the strip as it emerges from the bath at a height where the thickness of the coating metal is in excess of the desired final coating thickness, the impinging jet returning a continuous flow of the molten metal to the bath while a desired quantity of molten coating metal adheres to the strip and (d) contouring the narrow dimension of the gaseous jet across a portion thereof so as to proportion the wiping effect and leave a uniform coating thickness across the entire width of the strip. For instance, bowing of the strip is compensated for by widening the nozzle across part of its length, this being achieved by using a nozzle of the kind described in U. S.A. Specification 3, 314,163. The maximum velocity of the jet should be at the point of exit from the nozzle, and there should be a sharp velocity gradient across the narrow dimension of the jet, to avoid turbulence and consequent distortion of the coating, which may be of Zn, Al, or terne.
ES353707A 1967-05-10 1968-05-09 Metallic coating method Expired ES353707A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63744267A 1967-05-10 1967-05-10

Publications (1)

Publication Number Publication Date
ES353707A1 true ES353707A1 (en) 1969-10-16

Family

ID=24555955

Family Applications (1)

Application Number Title Priority Date Filing Date
ES353707A Expired ES353707A1 (en) 1967-05-10 1968-05-09 Metallic coating method

Country Status (7)

Country Link
JP (1) JPS5020014B1 (en)
BE (1) BE714915A (en)
BG (1) BG22411A3 (en)
DE (1) DE1771337A1 (en)
ES (1) ES353707A1 (en)
FR (1) FR1563457A (en)
GB (1) GB1221349A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938468A (en) * 1970-04-29 1976-02-17 Wheeling-Pittsburgh Steel Corporation Apparatus for wiping liquid from a strip
JPS5294508U (en) * 1976-01-12 1977-07-15
FR3115175B1 (en) 2020-10-08 2022-08-26 Commissariat Energie Atomique DEVICE FOR ACQUIRING A DEPTH IMAGE OF A SCENE
CN112899599B (en) * 2021-01-15 2022-06-28 山东钢铁集团日照有限公司 Preparation method of galvanized sheet hot-pressing stress hardening tubular part
FR3124276B1 (en) 2021-06-21 2023-06-02 Commissariat Energie Atomique Sensor for acquiring a depth map of a scene
FR3124275B1 (en) 2021-06-21 2023-06-02 Commissariat Energie Atomique Device for acquiring a depth map of a scene

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE357258A (en) * 1929-01-10 1929-02-28 Georges Boutefeu Tinning process and other recoveries

Also Published As

Publication number Publication date
BG22411A3 (en) 1977-02-20
FR1563457A (en) 1969-04-11
BE714915A (en) 1968-09-30
JPS5020014B1 (en) 1975-07-11
GB1221349A (en) 1971-02-03
DE1771337A1 (en) 1971-12-30

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