JPS6436794A - Chromate treatment for galvanized steel material - Google Patents

Chromate treatment for galvanized steel material

Info

Publication number
JPS6436794A
JPS6436794A JP19239287A JP19239287A JPS6436794A JP S6436794 A JPS6436794 A JP S6436794A JP 19239287 A JP19239287 A JP 19239287A JP 19239287 A JP19239287 A JP 19239287A JP S6436794 A JPS6436794 A JP S6436794A
Authority
JP
Japan
Prior art keywords
steel material
galvanized steel
chromate treatment
sio2
cathode
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
JP19239287A
Other languages
Japanese (ja)
Other versions
JPH0680200B2 (en
Inventor
Chikako Ishikawa
Kazuo Mochizuki
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 JP19239287A priority Critical patent/JPH0680200B2/en
Publication of JPS6436794A publication Critical patent/JPS6436794A/en
Publication of JPH0680200B2 publication Critical patent/JPH0680200B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To form a chromate film excellent in uncoated corrosion resistance, etc., on a galvanized steel material, by carrying out electrolytic treatment under specific conditions by using a solution containing Cr<6+>, F<->, SiO2, Zn<2+>, SO4<2->, and Cl<-> in respectively specified concentrations and also using a galvanized steel material as a cathode. CONSTITUTION:Electrolytic treatment is carried out under the conditions of 1-50A/dm<2> current density and 1-100C/dm<2> quantity of electricity by using a solution containing 2-80g/l Cr<6+>, 0.05-5.0g/l F<->, 0.5-30g/l SiO2, 0.001-10g/l Zn<2+>, 0.001-5g/l SO4<2->, and 0.001-10g/l Cl<-> and also using a galvanized steel material as a cathode. By this method, the chromate film excellent in adhesive strength of painting and adhesive strength be means of adshesives can be stably formed on the galvanized steel material.
JP19239287A 1987-07-31 1987-07-31 Chromate treatment method for galvanized steel Expired - Fee Related JPH0680200B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19239287A JPH0680200B2 (en) 1987-07-31 1987-07-31 Chromate treatment method for galvanized steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19239287A JPH0680200B2 (en) 1987-07-31 1987-07-31 Chromate treatment method for galvanized steel

Publications (2)

Publication Number Publication Date
JPS6436794A true JPS6436794A (en) 1989-02-07
JPH0680200B2 JPH0680200B2 (en) 1994-10-12

Family

ID=16290539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19239287A Expired - Fee Related JPH0680200B2 (en) 1987-07-31 1987-07-31 Chromate treatment method for galvanized steel

Country Status (1)

Country Link
JP (1) JPH0680200B2 (en)

Also Published As

Publication number Publication date
JPH0680200B2 (en) 1994-10-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees