JPS5641386A - Production of chromate-treated sheet plate excellent in corrosion resistance - Google Patents

Production of chromate-treated sheet plate excellent in corrosion resistance

Info

Publication number
JPS5641386A
JPS5641386A JP11553479A JP11553479A JPS5641386A JP S5641386 A JPS5641386 A JP S5641386A JP 11553479 A JP11553479 A JP 11553479A JP 11553479 A JP11553479 A JP 11553479A JP S5641386 A JPS5641386 A JP S5641386A
Authority
JP
Japan
Prior art keywords
chromate
corrosion resistance
production
steel plate
sheet plate
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.)
Pending
Application number
JP11553479A
Other languages
Japanese (ja)
Inventor
Toshio Nakamori
Keizo Kazama
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.)
Sumitomo Metal Mining Co Ltd
Nippon Steel Corp
Original Assignee
Sumitomo Metal Mining Co Ltd
Sumitomo Metal Industries 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 Sumitomo Metal Mining Co Ltd, Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP11553479A priority Critical patent/JPS5641386A/en
Publication of JPS5641386A publication Critical patent/JPS5641386A/en
Pending 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
    • 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
    • C23C22/26—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 organic compounds
    • C23C22/27—Acids

Abstract

PURPOSE:To obtain a chromate-treated steel plate which excels in the corrosion resistance, by carrying out the chromate treatment via the mixture solution containing the Al, Pb, Mg and Zn having a specified composition after giving the zinc galvanization. CONSTITUTION:The zinc galvanization is applied on the surface of the steel plate. After this, the mixture solution composed of the <=0.5 Al, <=0.4 Pb, 0.02 Mg and the rest of Zn in terms of the weight percent is used to carry out the chromate treatment. As a result, the time to occurrence of the white rust can be extended greatly, thus increasing the resistance to corrosion greatly for the steel plate.
JP11553479A 1979-09-08 1979-09-08 Production of chromate-treated sheet plate excellent in corrosion resistance Pending JPS5641386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11553479A JPS5641386A (en) 1979-09-08 1979-09-08 Production of chromate-treated sheet plate excellent in corrosion resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11553479A JPS5641386A (en) 1979-09-08 1979-09-08 Production of chromate-treated sheet plate excellent in corrosion resistance

Publications (1)

Publication Number Publication Date
JPS5641386A true JPS5641386A (en) 1981-04-18

Family

ID=14664907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11553479A Pending JPS5641386A (en) 1979-09-08 1979-09-08 Production of chromate-treated sheet plate excellent in corrosion resistance

Country Status (1)

Country Link
JP (1) JPS5641386A (en)

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