GB1145223A - Improvements in processes and apparatus for hot galvanising steel strip by immersionin a bath of molten metal - Google Patents

Improvements in processes and apparatus for hot galvanising steel strip by immersionin a bath of molten metal

Info

Publication number
GB1145223A
GB1145223A GB11181/67A GB1118167A GB1145223A GB 1145223 A GB1145223 A GB 1145223A GB 11181/67 A GB11181/67 A GB 11181/67A GB 1118167 A GB1118167 A GB 1118167A GB 1145223 A GB1145223 A GB 1145223A
Authority
GB
United Kingdom
Prior art keywords
rollers
bath
zinc
coating
strip
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
GB11181/67A
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.)
CHIERS HAUTS FOURNEAUX
PROMETO SA
Original Assignee
CHIERS HAUTS FOURNEAUX
PROMETO SA
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
Priority claimed from FR52721A external-priority patent/FR1481120A/en
Priority claimed from FR94844A external-priority patent/FR91910E/en
Application filed by CHIERS HAUTS FOURNEAUX, PROMETO SA filed Critical CHIERS HAUTS FOURNEAUX
Publication of GB1145223A publication Critical patent/GB1145223A/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
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/26After-treatment
    • C23C2/28Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29Cooling or quenching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Coating With Molten Metal (AREA)

Abstract

1,145,223. Galvanizing steel. SOC., ANON. DES HAUTS-FOURNEAUX DE LA CHIERS and SOC. ANON. PROMETO. March 9, 1967 [March 9, 1966; Feb.14, 1967], No.11181/67. Heading C7F. The crystalline relief structure known as "spangle" is prevented from appearing on hotgalvanized steel strip by coding the zinc-coated strip, before the coating has begun to crystallise, by a dry method and more rapidly than can be achieved by coding means employing air at room temperature, from a condition in which the zinc is still molten to a temperature below that at which it would normally crystallise. This is preferably done by passing the coated strip through cooled rollers 8, 9 after it emerges from the galvanizing bath and at a height intermediate between the bath surface and the point where spangle would otherwise appear on the upwards-moving strip. Rollers 8, 9 even the thickness of the zinc coating and give the surface of the coating a finish corresponding to their own. They may be moved apart and together, or adjusted vertically and may meet either with their centres at the same level or vertically staggered. The vertical and horizontal adjustments for the rollers may be independent of those for each other, or may be linked so that a horizontal or vertical adjustment can be made using one control for both rollers.
GB11181/67A 1966-03-09 1967-03-09 Improvements in processes and apparatus for hot galvanising steel strip by immersionin a bath of molten metal Expired GB1145223A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR52721A FR1481120A (en) 1966-03-09 1966-03-09 Improvement in the process and the installations of hot galvanizing by immersion in a liquid metal bath of various steel materials
FR94844A FR91910E (en) 1967-02-14 1967-02-14 Improvement in the process and the installations of hot galvanizing by immersion in a liquid metal bath of various steel materials

Publications (1)

Publication Number Publication Date
GB1145223A true GB1145223A (en) 1969-03-12

Family

ID=26169100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11181/67A Expired GB1145223A (en) 1966-03-09 1967-03-09 Improvements in processes and apparatus for hot galvanising steel strip by immersionin a bath of molten metal

Country Status (3)

Country Link
JP (1) JPS5121939B1 (en)
BE (1) BE694826A (en)
GB (1) GB1145223A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2642444C3 (en) * 1976-09-21 1980-02-14 Franz Kuhlmann Kg, Praezisionsmechanik Und Maschinenbau, 2940 Wilhelmshaven Carriage drawing machine

Also Published As

Publication number Publication date
DE1621333B2 (en) 1975-10-09
BE694826A (en) 1967-09-01
DE1621333A1 (en) 1972-03-23
JPS5121939B1 (en) 1976-07-06

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