JPS6425997A - Production of composite plated steel sheet having high corrosion resistance - Google Patents

Production of composite plated steel sheet having high corrosion resistance

Info

Publication number
JPS6425997A
JPS6425997A JP11112188A JP11112188A JPS6425997A JP S6425997 A JPS6425997 A JP S6425997A JP 11112188 A JP11112188 A JP 11112188A JP 11112188 A JP11112188 A JP 11112188A JP S6425997 A JPS6425997 A JP S6425997A
Authority
JP
Japan
Prior art keywords
steel sheet
corrosion resistance
expressed
terms
production
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
JP11112188A
Other languages
Japanese (ja)
Other versions
JPH0461080B2 (en
Inventor
Shigeru Unno
Koji Yamato
Hajime Kimura
Toshiro Ichida
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP11112188A priority Critical patent/JPS6425997A/en
Publication of JPS6425997A publication Critical patent/JPS6425997A/en
Publication of JPH0461080B2 publication Critical patent/JPH0461080B2/ja
Granted legal-status Critical Current

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  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To improve the corrosion resistance of a galvanized steel sheet and the adhesion to paint after coating by adding prescribed amts. of water soluble compds. of Co<2+> and Cr<3+>, pseudo-boehmitic alumina sol and colloidal silica to an acidic galvanizing bath. CONSTITUTION:0.3-60g (expressed in terms of metallic Co) one or more kinds of water soluble compds. of Co<2+>, 0.2-2.5g (expressed in terms of metallic Cr) one or more kinds of water soluble compds. of Cr<3+>, 0.5-20g (expressed in terms of alumina) pseudo-boehmitic alumina sol and 0.5-20g (expressed in terms of silica) colloidal silica are prepd. They are added to 1l acidic galvanizing bath and a steel sheet is galvanized with the resulting bath.
JP11112188A 1988-05-07 1988-05-07 Production of composite plated steel sheet having high corrosion resistance Granted JPS6425997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11112188A JPS6425997A (en) 1988-05-07 1988-05-07 Production of composite plated steel sheet having high corrosion resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11112188A JPS6425997A (en) 1988-05-07 1988-05-07 Production of composite plated steel sheet having high corrosion resistance

Publications (2)

Publication Number Publication Date
JPS6425997A true JPS6425997A (en) 1989-01-27
JPH0461080B2 JPH0461080B2 (en) 1992-09-29

Family

ID=14552964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11112188A Granted JPS6425997A (en) 1988-05-07 1988-05-07 Production of composite plated steel sheet having high corrosion resistance

Country Status (1)

Country Link
JP (1) JPS6425997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013541646A (en) * 2010-11-05 2013-11-14 マクダーミッド アキューメン インコーポレーテッド Dark chrome electrodeposits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013541646A (en) * 2010-11-05 2013-11-14 マクダーミッド アキューメン インコーポレーテッド Dark chrome electrodeposits

Also Published As

Publication number Publication date
JPH0461080B2 (en) 1992-09-29

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