JPS569391A - Plating method for black chromium - Google Patents

Plating method for black chromium

Info

Publication number
JPS569391A
JPS569391A JP8204979A JP8204979A JPS569391A JP S569391 A JPS569391 A JP S569391A JP 8204979 A JP8204979 A JP 8204979A JP 8204979 A JP8204979 A JP 8204979A JP S569391 A JPS569391 A JP S569391A
Authority
JP
Japan
Prior art keywords
substance
conductive material
electrically conductive
current density
employing
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
JP8204979A
Other languages
Japanese (ja)
Other versions
JPS645118B2 (en
Inventor
Tomohiro Minegishi
Matsufumi Takatani
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.)
MINE TOMOHIRO
Original Assignee
MINE TOMOHIRO
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 MINE TOMOHIRO filed Critical MINE TOMOHIRO
Priority to JP8204979A priority Critical patent/JPS569391A/en
Publication of JPS569391A publication Critical patent/JPS569391A/en
Publication of JPS645118B2 publication Critical patent/JPS645118B2/ja
Granted legal-status Critical Current

Links

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  • Electroplating And Plating Baths Therefor (AREA)

Abstract

PURPOSE: To obtain an even, good black chrome plated film with a low current density by applying the plating on the surface of the electrically conductive material employing a bath in which a trace amount of F- is present in the chromic anhydride containing solution, containing no sulfuric acid root in substance.
CONSTITUTION: Prepared is a plating bath in which F- is present at the concentration of 1×10-2W1×10-24g/l in the water solution containing chromic anhydride at a rate of 250W600g per 1l of water, but not sulfuric root in substance. For the F- source, for example, MgF2 is used. Then, employing the afore-mentioned plating bath at the temperature of -10W50°C, a good black Cr film is formed on the surface of electrically conductive material such as copper and iron at the current density of 5W200A/dm2 without irradiation of ionizating radiation.
COPYRIGHT: (C)1981,JPO&Japio
JP8204979A 1979-06-30 1979-06-30 Plating method for black chromium Granted JPS569391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8204979A JPS569391A (en) 1979-06-30 1979-06-30 Plating method for black chromium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8204979A JPS569391A (en) 1979-06-30 1979-06-30 Plating method for black chromium

Publications (2)

Publication Number Publication Date
JPS569391A true JPS569391A (en) 1981-01-30
JPS645118B2 JPS645118B2 (en) 1989-01-27

Family

ID=13763646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8204979A Granted JPS569391A (en) 1979-06-30 1979-06-30 Plating method for black chromium

Country Status (1)

Country Link
JP (1) JPS569391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517655A1 (en) * 2018-01-25 2019-07-31 Franz GmbH Method for black chromium plating

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496975A (en) * 1972-03-13 1974-01-22
JPS5325690A (en) * 1976-07-30 1978-03-09 Matsushita Electric Works Ltd Polymer having high dielectric constant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496975A (en) * 1972-03-13 1974-01-22
JPS5325690A (en) * 1976-07-30 1978-03-09 Matsushita Electric Works Ltd Polymer having high dielectric constant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517655A1 (en) * 2018-01-25 2019-07-31 Franz GmbH Method for black chromium plating

Also Published As

Publication number Publication date
JPS645118B2 (en) 1989-01-27

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