JPS5743994A - Preparation of zinc electroplated steel plate having excellent gloss - Google Patents

Preparation of zinc electroplated steel plate having excellent gloss

Info

Publication number
JPS5743994A
JPS5743994A JP11951880A JP11951880A JPS5743994A JP S5743994 A JPS5743994 A JP S5743994A JP 11951880 A JP11951880 A JP 11951880A JP 11951880 A JP11951880 A JP 11951880A JP S5743994 A JPS5743994 A JP S5743994A
Authority
JP
Japan
Prior art keywords
steel plate
zinc
plating bath
gloss
current density
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
JP11951880A
Other languages
Japanese (ja)
Other versions
JPS5826438B2 (en
Inventor
Akira Matsuda
Shunichi Harada
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 JP11951880A priority Critical patent/JPS5826438B2/en
Publication of JPS5743994A publication Critical patent/JPS5743994A/en
Publication of JPS5826438B2 publication Critical patent/JPS5826438B2/en
Expired legal-status Critical Current

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  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE: To improve the gloss of a plating layer, by controlling an electric current density in a specific relation relating to the rate of a steel plate passing through a plating bath when forming a zinc electroless plating layer having excellent gloss on the surface of a steel plate in the plating bath with a zinc chloride base.
CONSTITUTION: After cleaning of the surface of a steel plate to be zinc plated, the steel plate is passed as an cathode through a plating bath which contains 100W 350g/l ZnCl2 and 100W400g/l at least one compound of NH4Cl, KCl, NaCl, AlCl3, BaCl2, CaCl2, FeCl2, FeCl3, MgCl2 and MnCl2, having a pH value of 1W7 and having a temperature of 40W70°C to be electroplated. In this process, the current density is controlled so that a numerical relation of 18×u1/2≥S≥0.4× u+20 is retained between a current density S(A/dm2) and the rate of a steel plate passing through the plating bath u (m/min). Thus the gloss of a zinc electroplating layer is markedly improved.
COPYRIGHT: (C)1982,JPO&Japio
JP11951880A 1980-08-29 1980-08-29 Manufacturing method for electrogalvanized steel sheets with excellent gloss Expired JPS5826438B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11951880A JPS5826438B2 (en) 1980-08-29 1980-08-29 Manufacturing method for electrogalvanized steel sheets with excellent gloss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11951880A JPS5826438B2 (en) 1980-08-29 1980-08-29 Manufacturing method for electrogalvanized steel sheets with excellent gloss

Publications (2)

Publication Number Publication Date
JPS5743994A true JPS5743994A (en) 1982-03-12
JPS5826438B2 JPS5826438B2 (en) 1983-06-02

Family

ID=14763249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11951880A Expired JPS5826438B2 (en) 1980-08-29 1980-08-29 Manufacturing method for electrogalvanized steel sheets with excellent gloss

Country Status (1)

Country Link
JP (1) JPS5826438B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140564A2 (en) * 1983-09-20 1985-05-08 Bethlehem Steel Corporation Electroplated product and method
JPH02107797A (en) * 1988-09-14 1990-04-19 Mas Fab Andritz Ag Electrolytic zinc-coating method of a special steel
KR100909692B1 (en) * 2001-12-12 2009-07-29 주식회사 포스코 Manufacturing method of electro galvanized steel sheet with excellent surface hardness and surface appearance
US11794356B2 (en) 2018-08-13 2023-10-24 Korea Atomic Energy Research Institute Electric gripping device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140564A2 (en) * 1983-09-20 1985-05-08 Bethlehem Steel Corporation Electroplated product and method
JPH02107797A (en) * 1988-09-14 1990-04-19 Mas Fab Andritz Ag Electrolytic zinc-coating method of a special steel
KR100909692B1 (en) * 2001-12-12 2009-07-29 주식회사 포스코 Manufacturing method of electro galvanized steel sheet with excellent surface hardness and surface appearance
US11794356B2 (en) 2018-08-13 2023-10-24 Korea Atomic Energy Research Institute Electric gripping device

Also Published As

Publication number Publication date
JPS5826438B2 (en) 1983-06-02

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