GB1448662A - Process for treating a steel surface - Google Patents

Process for treating a steel surface

Info

Publication number
GB1448662A
GB1448662A GB3192275A GB3192275A GB1448662A GB 1448662 A GB1448662 A GB 1448662A GB 3192275 A GB3192275 A GB 3192275A GB 3192275 A GB3192275 A GB 3192275A GB 1448662 A GB1448662 A GB 1448662A
Authority
GB
United Kingdom
Prior art keywords
pickling
dipping
electro
recovered
tin
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
GB3192275A
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 FR7428294A external-priority patent/FR2281995A1/en
Priority claimed from FR7519435A external-priority patent/FR2314949A2/en
Application filed by Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Publication of GB1448662A publication Critical patent/GB1448662A/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
    • 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
    • C23C2/08—Tin or alloys based thereon

Abstract

1448662 Coating steel with Sn by hot-dipping; recovering Sn; electro-stripping Sn AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 30 July 1975 [14 Aug 1974 20 June 1975] 31922/75 Headings C7B C7D C7E and C7F A steel, which may contain Ni and Cr, is diffusion coated with Sn by hot-dipping (400 to 700‹C) and the surface layer (Fe Sn 2 ) removed to leave the Fe Sn layer exposed. The Sn bath may contain Ni, Mg, and Cr. On removal from the bath the cooling rate may be 100‹C per hour. The layer is removed by e.g. grinding, pickling or electrochemically. Pickling may be in nitric acid containing hexamethylene tetramine. The electro-chemical removal may be at constant or variable voltage in sulphuric acid. A reference electrode may be used to control the time of the treatment. The tin may be recovered by cathodic reduction on a Pt electrode, after conversion of the stannic sulphate to stannic chloride by hydrochloric acid. Alternatively the tin may be recovered by direct reduction using Zn, Al or Mg as reducing agents.
GB3192275A 1974-08-14 1975-07-30 Process for treating a steel surface Expired GB1448662A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7428294A FR2281995A1 (en) 1974-08-14 1974-08-14 Coating stainless steel with tin - by dipping into a bath of molten tin which produces a tin layer contg. iron
FR7519435A FR2314949A2 (en) 1975-06-20 1975-06-20 Coating stainless steel with tin - by dipping into a bath of molten tin which produces a tin layer contg. iron

Publications (1)

Publication Number Publication Date
GB1448662A true GB1448662A (en) 1976-09-08

Family

ID=26218481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3192275A Expired GB1448662A (en) 1974-08-14 1975-07-30 Process for treating a steel surface

Country Status (3)

Country Link
JP (1) JPS5142031A (en)
DE (1) DE2534372A1 (en)
GB (1) GB1448662A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127143A (en) * 1982-09-07 1984-04-04 G B P Holdings Limited Heat pipe
US5397652A (en) * 1992-03-27 1995-03-14 The Louis Berkman Company Corrosion resistant, colored stainless steel and method of making same
US5616424A (en) 1992-03-27 1997-04-01 The Louis Berkman Company Corrosion-resistant coated metal strip
US5695822A (en) 1993-04-05 1997-12-09 The Louis Berkman Company Method for coating a metal strip
GB2337057A (en) * 1993-12-10 1999-11-10 Berkman Louis Co Coated Substrate
US6080497A (en) 1992-03-27 2000-06-27 The Louis Berkman Company Corrosion-resistant coated copper metal and method for making the same
US6652990B2 (en) 1992-03-27 2003-11-25 The Louis Berkman Company Corrosion-resistant coated metal and method for making the same
US6794060B2 (en) 1992-03-27 2004-09-21 The Louis Berkman Company Corrosion-resistant coated metal and method for making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272400A (en) * 1985-05-27 1986-12-02 Nippon Steel Corp Manufacture of hot dipped steel sheet

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127143A (en) * 1982-09-07 1984-04-04 G B P Holdings Limited Heat pipe
US6080497A (en) 1992-03-27 2000-06-27 The Louis Berkman Company Corrosion-resistant coated copper metal and method for making the same
US5616424A (en) 1992-03-27 1997-04-01 The Louis Berkman Company Corrosion-resistant coated metal strip
US5667849A (en) * 1992-03-27 1997-09-16 The Louis Berkman Company Method for coating a metal strip
US5397652A (en) * 1992-03-27 1995-03-14 The Louis Berkman Company Corrosion resistant, colored stainless steel and method of making same
US6652990B2 (en) 1992-03-27 2003-11-25 The Louis Berkman Company Corrosion-resistant coated metal and method for making the same
US6794060B2 (en) 1992-03-27 2004-09-21 The Louis Berkman Company Corrosion-resistant coated metal and method for making the same
US6811891B2 (en) 1992-03-27 2004-11-02 The Louis Berkman Company Corrosion-resistant coated metal and method for making the same
US5695822A (en) 1993-04-05 1997-12-09 The Louis Berkman Company Method for coating a metal strip
GB2284618A (en) * 1993-12-10 1995-06-14 Berkman Louis Co Steel having a corrosion resistant intermetallic surface layer
GB2337057A (en) * 1993-12-10 1999-11-10 Berkman Louis Co Coated Substrate
GB2337057B (en) * 1993-12-10 1999-12-15 Berkman Louis Co Coated substrate
GB2284618B (en) * 1993-12-10 1999-12-15 Berkman Louis Co Coated substrate

Also Published As

Publication number Publication date
JPS5142031A (en) 1976-04-09
DE2534372A1 (en) 1976-02-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee