JPS57192284A - Manufacture of iron-zinc alloy electroplated steel sheet - Google Patents

Manufacture of iron-zinc alloy electroplated steel sheet

Info

Publication number
JPS57192284A
JPS57192284A JP7571281A JP7571281A JPS57192284A JP S57192284 A JPS57192284 A JP S57192284A JP 7571281 A JP7571281 A JP 7571281A JP 7571281 A JP7571281 A JP 7571281A JP S57192284 A JPS57192284 A JP S57192284A
Authority
JP
Japan
Prior art keywords
iron
plating
flow velocity
current density
steel sheet
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
JP7571281A
Other languages
Japanese (ja)
Other versions
JPS6011117B2 (en
Inventor
Tomihiro Hara
Takeshi Ataya
Akira Touchi
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP56075712A priority Critical patent/JPS6011117B2/en
Publication of JPS57192284A publication Critical patent/JPS57192284A/en
Publication of JPS6011117B2 publication Critical patent/JPS6011117B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain said steel sheet which has excellent pressing workability and corrosion proofness after painting and is free from frosting spots or flowing patterns, by specifying a composition, pH and a flow velocity of plating liquid and a current density when plating in an aqueous solution containing iron and zinc ion.
CONSTITUTION: The plating liquid which contans total amount fo metal salts; 100W600g/l, concentration of iorn salt; 55W70wt%, polyvalent carboxylic acid; 5W50g/l, sodium acetate; 10W100g/l is used. Plating is performed under condition of pH; 0.9W1.3, flow velocity; 0.8W4.0m/sec, current density; 30W60A/cm2 and the plated film of iron-zinc alloy containing 3W30wt% of iron is formed on the surface of a steel sheet. In this case a burnt deposite of plating is caused by a shortage of total metal salts and metal salts are precipitated by an excess. When concentration of iron salt, pH, flow velocity, current density are out of said ranges, iron in the film deviates from sat range. Further, plating of beautiful appearance is obtained by keeping said ranges of flow velocity and current density, removing Fe3+ wit carboxylic aicd and suppressing a rise of pH at the interface of a cathod with sodium acetate.
COPYRIGHT: (C)1982,JPO&Japio
JP56075712A 1981-05-21 1981-05-21 Manufacturing method of iron-zinc alloy electroplated steel sheet Expired JPS6011117B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075712A JPS6011117B2 (en) 1981-05-21 1981-05-21 Manufacturing method of iron-zinc alloy electroplated steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075712A JPS6011117B2 (en) 1981-05-21 1981-05-21 Manufacturing method of iron-zinc alloy electroplated steel sheet

Publications (2)

Publication Number Publication Date
JPS57192284A true JPS57192284A (en) 1982-11-26
JPS6011117B2 JPS6011117B2 (en) 1985-03-23

Family

ID=13584122

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075712A Expired JPS6011117B2 (en) 1981-05-21 1981-05-21 Manufacturing method of iron-zinc alloy electroplated steel sheet

Country Status (1)

Country Link
JP (1) JPS6011117B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211594A (en) * 1983-05-14 1984-11-30 Kawasaki Steel Corp Zn-fe alloy electroplated steel sheet and zn-fe-p alloy electroplated steel sheet
JPS6039191A (en) * 1983-08-11 1985-02-28 Nippon Steel Corp Zn-fe-co alloy plated steel sheet with superior workability

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02200328A (en) * 1989-01-27 1990-08-08 Aifuji Seiki Kk Bender in heat exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569386A (en) * 1979-07-02 1981-01-30 Nippon Kokan Kk <Nkk> Production of electro-zinc plated steel plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569386A (en) * 1979-07-02 1981-01-30 Nippon Kokan Kk <Nkk> Production of electro-zinc plated steel plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211594A (en) * 1983-05-14 1984-11-30 Kawasaki Steel Corp Zn-fe alloy electroplated steel sheet and zn-fe-p alloy electroplated steel sheet
JPS6342717B2 (en) * 1983-05-14 1988-08-25 Kawasaki Steel Co
JPS6039191A (en) * 1983-08-11 1985-02-28 Nippon Steel Corp Zn-fe-co alloy plated steel sheet with superior workability
JPS6337198B2 (en) * 1983-08-11 1988-07-25 Nippon Steel Corp

Also Published As

Publication number Publication date
JPS6011117B2 (en) 1985-03-23

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