JPS60190588A - Method for blackening zinc or zinc alloy plated steel sheet - Google Patents

Method for blackening zinc or zinc alloy plated steel sheet

Info

Publication number
JPS60190588A
JPS60190588A JP4548584A JP4548584A JPS60190588A JP S60190588 A JPS60190588 A JP S60190588A JP 4548584 A JP4548584 A JP 4548584A JP 4548584 A JP4548584 A JP 4548584A JP S60190588 A JPS60190588 A JP S60190588A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
steel sheet
acid
zinc
method
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.)
Pending
Application number
JP4548584A
Other versions
JPS6256959B2 (en )
Inventor
Tsuneo Inui
Katsumi Kanda
Katsunobu Kunimoto
Takashi Mizobe
Original Assignee
Toyo Kohan Co 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

Links

Abstract

PURPOSE: To form a uniform black film in a short time by carrying out electrolysis using the titled steel sheet as a cathode in an aqueous soln. contg. prescribed amounts of Co and/or Ni ions and the ammonium or sodium salt of sulfuric acid, hydrochloric acid or the like.
CONSTITUTION: An aqueous soln. contg. 1W20g/l Co and/or Ni ions and 5W70g/ lone or more kinds of salts selected among the ammonium, sodium, potassium and aluminum salts of sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid, carbonic acid, etc. is prepd. Using the titled steel sheet as a cathode electrolysis is carried out in the aqueous soln. at 1W5A/dm2 cathode current density for 0.5W30sec. By this method a uniform black film is formed in a short time.
COPYRIGHT: (C)1985,JPO&Japio
JP4548584A 1984-03-12 1984-03-12 Expired JPS6256959B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4548584A JPS6256959B2 (en) 1984-03-12 1984-03-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4548584A JPS6256959B2 (en) 1984-03-12 1984-03-12

Publications (2)

Publication Number Publication Date
JPS60190588A true true JPS60190588A (en) 1985-09-28
JPS6256959B2 JPS6256959B2 (en) 1987-11-27

Family

ID=12720699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4548584A Expired JPS6256959B2 (en) 1984-03-12 1984-03-12

Country Status (1)

Country Link
JP (1) JPS6256959B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215790A (en) * 1984-04-10 1985-10-29 Usui Internatl Ind Co Ltd Heat and corrosion resistant double-coated steel material and formation of double coating
EP0266020A1 (en) * 1986-10-27 1988-05-04 Burlington Industries, Inc. Nickel phosphorus electroplating
DE3902457A1 (en) * 1988-01-29 1989-08-10 Nippon Steel Corp Black, oberflaechenbehandelte steel plate and process for their preparation
DE4019964A1 (en) * 1989-06-22 1991-01-03 Nippon Steel Corp A process for the manufacture of steel sheets having schwarzgefaerbter SURFACE
JP2014012876A (en) * 2012-07-05 2014-01-23 Nippon Telegr & Teleph Corp <Ntt> Method for suppressing hydrogen generation on steel material surface

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215790A (en) * 1984-04-10 1985-10-29 Usui Internatl Ind Co Ltd Heat and corrosion resistant double-coated steel material and formation of double coating
JPS633032B2 (en) * 1984-04-10 1988-01-21 Usui Kokusai Sangyo Kk
EP0266020A1 (en) * 1986-10-27 1988-05-04 Burlington Industries, Inc. Nickel phosphorus electroplating
DE3902457A1 (en) * 1988-01-29 1989-08-10 Nippon Steel Corp Black, oberflaechenbehandelte steel plate and process for their preparation
US4968391A (en) * 1988-01-29 1990-11-06 Nippon Steel Corporation Process for the preparation of a black surface-treated steel sheet
US5023146A (en) * 1988-01-29 1991-06-11 Nippon Steel Corporation Black surface-treated steel sheet
DE4019964A1 (en) * 1989-06-22 1991-01-03 Nippon Steel Corp A process for the manufacture of steel sheets having schwarzgefaerbter SURFACE
US5032236A (en) * 1989-06-22 1991-07-16 Nippon Steel Corporation Process for producing a surface-blackened steel sheet
JP2014012876A (en) * 2012-07-05 2014-01-23 Nippon Telegr & Teleph Corp <Ntt> Method for suppressing hydrogen generation on steel material surface

Also Published As

Publication number Publication date Type
JPS6256959B2 (en) 1987-11-27 grant

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