JPS54101729A - Surface treating method for aluminum and its alloy - Google Patents

Surface treating method for aluminum and its alloy

Info

Publication number
JPS54101729A
JPS54101729A JP843678A JP843678A JPS54101729A JP S54101729 A JPS54101729 A JP S54101729A JP 843678 A JP843678 A JP 843678A JP 843678 A JP843678 A JP 843678A JP S54101729 A JPS54101729 A JP S54101729A
Authority
JP
Japan
Prior art keywords
alloy
parts
surfactant
pref
bath
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
JP843678A
Other languages
Japanese (ja)
Other versions
JPS6039758B2 (en
Inventor
Akira Otanaka
Nagaharu Morioka
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.)
Nippon Soda Co Ltd
Original Assignee
Nippon Soda 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
Application filed by Nippon Soda Co Ltd filed Critical Nippon Soda Co Ltd
Priority to JP843678A priority Critical patent/JPS6039758B2/en
Publication of JPS54101729A publication Critical patent/JPS54101729A/en
Publication of JPS6039758B2 publication Critical patent/JPS6039758B2/en
Expired legal-status Critical Current

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  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To efficiently surface treat Al or its alloy with no environmental pollution problem by electro-polishing the Al or its alloy in a bath obtd. by adding a water sol. high molecular cpd. and a surfactant to an aq. soln. of sulfuric acid, followed by formation of an oxide film at a different current density.
CONSTITUTION: Current is supplied to Al or its alloy as an electrode at an electrode current density of 2W100 A/dm2 for 30 secW5 min in a bath soln. of 50W100, pref. 60W80°C consisting of 25W40 parts of water, 20W50 parts of sulfuric acid, 20W50 parts of a water sol. high molecular cpd. with an average MW of 200W400, e.g. polyethylene glycol, and 0.1W5 parts of a surfactant, pref. a mixt. of a cationic surfactant and an anionic or nonionic surfactant to electro-polish the Al or its alloy. Next current is supplied in the same bath of 30W80°C at an electrode current density of 0.3W20, pref. 1.5W6 A/dm2 and an electrolytic voltage of 4W20 V for 5W30 min to form an oxide film. The current may be DC, AC or DV-AC.
COPYRIGHT: (C)1979,JPO&Japio
JP843678A 1978-01-28 1978-01-28 Surface treatment method for aluminum and its alloys Expired JPS6039758B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP843678A JPS6039758B2 (en) 1978-01-28 1978-01-28 Surface treatment method for aluminum and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP843678A JPS6039758B2 (en) 1978-01-28 1978-01-28 Surface treatment method for aluminum and its alloys

Publications (2)

Publication Number Publication Date
JPS54101729A true JPS54101729A (en) 1979-08-10
JPS6039758B2 JPS6039758B2 (en) 1985-09-07

Family

ID=11693064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP843678A Expired JPS6039758B2 (en) 1978-01-28 1978-01-28 Surface treatment method for aluminum and its alloys

Country Status (1)

Country Link
JP (1) JPS6039758B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751300A (en) * 1980-09-08 1982-03-26 Honda Motor Co Ltd Method for electrolytic polishing of aluminum or aluminum alloy
CN108728893A (en) * 2017-04-13 2018-11-02 通用电气公司 Electropolishing for brush carriage equipment and anodization process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751300A (en) * 1980-09-08 1982-03-26 Honda Motor Co Ltd Method for electrolytic polishing of aluminum or aluminum alloy
CN108728893A (en) * 2017-04-13 2018-11-02 通用电气公司 Electropolishing for brush carriage equipment and anodization process

Also Published As

Publication number Publication date
JPS6039758B2 (en) 1985-09-07

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