JPS5635778A - Surface treatment of galvanized steel sheet - Google Patents

Surface treatment of galvanized steel sheet

Info

Publication number
JPS5635778A
JPS5635778A JP11200979A JP11200979A JPS5635778A JP S5635778 A JPS5635778 A JP S5635778A JP 11200979 A JP11200979 A JP 11200979A JP 11200979 A JP11200979 A JP 11200979A JP S5635778 A JPS5635778 A JP S5635778A
Authority
JP
Japan
Prior art keywords
steel sheet
galvanized steel
contg
painted
soln
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.)
Granted
Application number
JP11200979A
Other languages
Japanese (ja)
Other versions
JPS6018751B2 (en
Inventor
Shigeki Kirihara
Tadayoshi Kamigaki
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP11200979A priority Critical patent/JPS6018751B2/en
Publication of JPS5635778A publication Critical patent/JPS5635778A/en
Publication of JPS6018751B2 publication Critical patent/JPS6018751B2/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
    • C23C22/33—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 containing also phosphates

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)
  • Laminated Bodies (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To form a film having excellent corrosion resistance, workability, and painting property on the surface of a galvanized steel sheet, by painting said surface with aqueous soln. contg. chromic anhydride, silicic acid colloid, and pyrophosphoric acid, then by drying said surface without washing with water. CONSTITUTION:Galvanized steel sheet as it is, or steel sheet treated to form alloy after galvanization, is painted on the surface with an aqueous soln. contg. about 5-50g/l chromic anhydride, about 4-100g/l silicic acid colloid (in terms of SiO2), and about 2-60g/l pyrophosphoric acid. After excess soln. is squeezed out from the painted galvanized steel sheet with rubber roll, etc., the steel sheet is dried with warm air in relatively low temp. range, e.g., at about 100 deg.C. This procedure is applied efficiently to wire rod, or other long size material as well.
JP11200979A 1979-09-01 1979-09-01 Surface treatment method for galvanized steel sheets Expired JPS6018751B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11200979A JPS6018751B2 (en) 1979-09-01 1979-09-01 Surface treatment method for galvanized steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11200979A JPS6018751B2 (en) 1979-09-01 1979-09-01 Surface treatment method for galvanized steel sheets

Publications (2)

Publication Number Publication Date
JPS5635778A true JPS5635778A (en) 1981-04-08
JPS6018751B2 JPS6018751B2 (en) 1985-05-11

Family

ID=14575673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11200979A Expired JPS6018751B2 (en) 1979-09-01 1979-09-01 Surface treatment method for galvanized steel sheets

Country Status (1)

Country Link
JP (1) JPS6018751B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174469A (en) * 1981-04-21 1982-10-27 Nisshin Steel Co Ltd Surface treatment of plated steel plate
JPS61284581A (en) * 1985-06-10 1986-12-15 Kobe Steel Ltd Chromate treated and plated steel sheet and its production
JP2009191317A (en) * 2008-02-14 2009-08-27 Sumitomo Metal Ind Ltd Method for manufacturing hot dip galvanized steel sheet having excellent degreasing property

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6227557U (en) * 1985-08-02 1987-02-19
JPS62122625A (en) * 1985-11-24 1987-06-03 株式会社　中西製作所 Washing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174469A (en) * 1981-04-21 1982-10-27 Nisshin Steel Co Ltd Surface treatment of plated steel plate
JPS61284581A (en) * 1985-06-10 1986-12-15 Kobe Steel Ltd Chromate treated and plated steel sheet and its production
JP2009191317A (en) * 2008-02-14 2009-08-27 Sumitomo Metal Ind Ltd Method for manufacturing hot dip galvanized steel sheet having excellent degreasing property

Also Published As

Publication number Publication date
JPS6018751B2 (en) 1985-05-11

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