FR2016958A6 - Coated ferrous metal product: manufacture and - resistance to diverse atmospheric conditions - Google Patents

Coated ferrous metal product: manufacture and - resistance to diverse atmospheric conditions

Info

Publication number
FR2016958A6
FR2016958A6 FR6927906A FR6927906A FR2016958A6 FR 2016958 A6 FR2016958 A6 FR 2016958A6 FR 6927906 A FR6927906 A FR 6927906A FR 6927906 A FR6927906 A FR 6927906A FR 2016958 A6 FR2016958 A6 FR 2016958A6
Authority
FR
France
Prior art keywords
manufacture
remainder
resistance
less
ferrous metal
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
FR6927906A
Other languages
French (fr)
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.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
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 Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Application granted granted Critical
Publication of FR2016958A6 publication Critical patent/FR2016958A6/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/12—Aluminium or alloys based thereon

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

Claim I: Zn-Al2 corrosion resistant coating on ferrous substrate, adherent and ductile, metallurgically applied, comprising 25/70% Al2, less than approx. 0.2% Pb, remainder Zn. Claim 2: manufacture comprises immersion of substrate in a fusion bath essentially for 25/70% Al2, less than approx. 0.2% Pb, Si in excess of 0.5% of Al2, remainder Zn. Subordinate claim: removal of surface oxides from the surface of a coating of essentially 25/70% Al2, less than 0.2% Pb, remainder Zn, the aluminium alloy layer effected so that it is thin and smooth. Critical importance of Pb content proved by exposure tests in diverse atmospheres with varied Al2 contents when corrosion resulted from % Pb was modified.
FR6927906A 1968-08-16 1969-08-13 Coated ferrous metal product: manufacture and - resistance to diverse atmospheric conditions Expired FR2016958A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75326268A 1968-08-16 1968-08-16

Publications (1)

Publication Number Publication Date
FR2016958A6 true FR2016958A6 (en) 1970-05-15

Family

ID=25029892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6927906A Expired FR2016958A6 (en) 1968-08-16 1969-08-13 Coated ferrous metal product: manufacture and - resistance to diverse atmospheric conditions

Country Status (4)

Country Link
BE (1) BE737547A (en)
DE (1) DE1941102A1 (en)
FR (1) FR2016958A6 (en)
LU (1) LU59299A1 (en)

Also Published As

Publication number Publication date
BE737547A (en) 1970-02-16
LU59299A1 (en) 1970-09-08
DE1941102A1 (en) 1970-03-05

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