JPS55119194A - Method for coloration of aluminum - Google Patents

Method for coloration of aluminum

Info

Publication number
JPS55119194A
JPS55119194A JP2521979A JP2521979A JPS55119194A JP S55119194 A JPS55119194 A JP S55119194A JP 2521979 A JP2521979 A JP 2521979A JP 2521979 A JP2521979 A JP 2521979A JP S55119194 A JPS55119194 A JP S55119194A
Authority
JP
Japan
Prior art keywords
bath
electrolysis
subjected
current density
sulfuric acid
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
JP2521979A
Other languages
Japanese (ja)
Inventor
Shozo Nagano
Teruo Takada
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.)
Mitsubishi Light Metal Industries Ltd
Original Assignee
Mitsubishi Light Metal Industries 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 Mitsubishi Light Metal Industries Ltd filed Critical Mitsubishi Light Metal Industries Ltd
Priority to JP2521979A priority Critical patent/JPS55119194A/en
Publication of JPS55119194A publication Critical patent/JPS55119194A/en
Pending legal-status Critical Current

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  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To form a film of colorful tone on aluminum by the procedure in which an anodized film is formed on the surface of Al by DC electrolysis in a sulfuric acid bath, the Al is subjected to an electrolysis with alternate current having a specific frequency and current density, and than the Al is further subjected to a coloration treatment in a tin salt-containing bath by AC electrolysis.
CONSTITUTION: Al is subjected to a DC electrolytic treatment in a sulfuric acid bath to form an approx. 1W25μ thick anodized film on its surface, then to an electrolytic treatment using alternate current of a frequency of 20W2000Hz and a current density of 6.5×10-4×f≤I≤4.3×10-3×f+0.4 (I is current density (A/dm2) and f is frequency (Hz) to reform the anodized film in the same sulfuric acid bath, and further to an AC electrolytic treatment in a bath containing a mineral acid tin salt or a combination the mineral acid tin salt and a mineral acid Mg or Co salt. Thus, clear yellowish, deep blue, and green containing colorful tone can be given.
COPYRIGHT: (C)1980,JPO&Japio
JP2521979A 1979-03-05 1979-03-05 Method for coloration of aluminum Pending JPS55119194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2521979A JPS55119194A (en) 1979-03-05 1979-03-05 Method for coloration of aluminum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2521979A JPS55119194A (en) 1979-03-05 1979-03-05 Method for coloration of aluminum

Publications (1)

Publication Number Publication Date
JPS55119194A true JPS55119194A (en) 1980-09-12

Family

ID=12159844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2521979A Pending JPS55119194A (en) 1979-03-05 1979-03-05 Method for coloration of aluminum

Country Status (1)

Country Link
JP (1) JPS55119194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628467U (en) * 1979-08-10 1981-03-17
KR20010087588A (en) * 2000-03-07 2001-09-21 김영호 Anodize oxide mode of Aluminum alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628467U (en) * 1979-08-10 1981-03-17
KR20010087588A (en) * 2000-03-07 2001-09-21 김영호 Anodize oxide mode of Aluminum alloys

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