GB1277944A - Method for surface-treatment of zinc metal and zinc alloys - Google Patents

Method for surface-treatment of zinc metal and zinc alloys

Info

Publication number
GB1277944A
GB1277944A GB3632869A GB3632869A GB1277944A GB 1277944 A GB1277944 A GB 1277944A GB 3632869 A GB3632869 A GB 3632869A GB 3632869 A GB3632869 A GB 3632869A GB 1277944 A GB1277944 A GB 1277944A
Authority
GB
United Kingdom
Prior art keywords
zinc
alloys
treatment
july
chromic acid
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
GB3632869A
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of GB1277944A publication Critical patent/GB1277944A/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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Coating With Molten Metal (AREA)

Abstract

1277944 Chromating Zn surfaces NIPPON STEEL CORP 18 July 1969 [20 July 1968] 36328/69 Heading C7U Surfaces of Zn or Zn alloys are coated with a solution of chromic acid and colloidal silica and dried to form a thick surface film. Excess coating solution is removed from the surface by squeezerolls or gas-blowing, and where the coated article is to be used without further fabrication, a solution containing 1-20 g/l chromic acid and 1-70 g/l siO 2 is used, but for articles still to be shaped, the amounts should be more than 18 and 50 g/l respectively. Part of the hexavalent Cr may be reduced to the trivalent state by sucrose or electrolysis using carbon electrodes.
GB3632869A 1968-07-20 1969-07-18 Method for surface-treatment of zinc metal and zinc alloys Expired GB1277944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5134168A JPS522851B1 (en) 1968-07-20 1968-07-20

Publications (1)

Publication Number Publication Date
GB1277944A true GB1277944A (en) 1972-06-14

Family

ID=12884209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3632869A Expired GB1277944A (en) 1968-07-20 1969-07-18 Method for surface-treatment of zinc metal and zinc alloys

Country Status (7)

Country Link
JP (1) JPS522851B1 (en)
BE (1) BE736258A (en)
CA (1) CA923023A (en)
DE (1) DE1936633A1 (en)
ES (1) ES369631A1 (en)
FR (1) FR2013393A1 (en)
GB (1) GB1277944A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113418930A (en) * 2021-06-04 2021-09-21 西北工业大学 Method for rapidly detecting whether surface coating of iron plate is complete

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129304U (en) * 1980-03-03 1981-10-01
JP2755387B2 (en) * 1988-04-12 1998-05-20 大洋製鋼株式会社 Manufacturing method of hot-dip zinc-alloy-plated steel sheet for pre-coated steel sheet and pre-coated steel sheet
DE3817075C2 (en) * 1988-05-19 1996-09-26 Miele & Cie Door safety switch for a household appliance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113418930A (en) * 2021-06-04 2021-09-21 西北工业大学 Method for rapidly detecting whether surface coating of iron plate is complete
CN113418930B (en) * 2021-06-04 2024-05-10 西北工业大学 Method for rapidly detecting whether surface coating of iron plate is complete

Also Published As

Publication number Publication date
JPS522851B1 (en) 1977-01-25
DE1936633A1 (en) 1970-02-19
ES369631A1 (en) 1971-04-01
CA923023A (en) 1973-03-20
FR2013393A1 (en) 1970-04-03
BE736258A (en) 1969-12-31

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Legal Events

Date Code Title Description
PS Patent sealed