JPS5620194A - Electrolytic coloring method for aluminum - Google Patents

Electrolytic coloring method for aluminum

Info

Publication number
JPS5620194A
JPS5620194A JP9439579A JP9439579A JPS5620194A JP S5620194 A JPS5620194 A JP S5620194A JP 9439579 A JP9439579 A JP 9439579A JP 9439579 A JP9439579 A JP 9439579A JP S5620194 A JPS5620194 A JP S5620194A
Authority
JP
Japan
Prior art keywords
electrolytic bath
bath containing
acid
electrolytic
anodizing
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
JP9439579A
Other languages
Japanese (ja)
Inventor
Yoshifumi Shimajiri
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.)
Altemira Co Ltd
Original Assignee
Showa Aluminum 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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP9439579A priority Critical patent/JPS5620194A/en
Publication of JPS5620194A publication Critical patent/JPS5620194A/en
Pending legal-status Critical Current

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  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To obtain a uniform and clear colored coating, by anodizing by lower voltage than that of anodic oxidation moreover after performing the anodic oxidation in the electrolytic bath containing inorganic acid and after that, performing alternating current electrlysis in the electrolytic bath containing tin salts etc.
CONSTITUTION: Al material is electrolytically anodized in the electrolytic bath containing inorganic acid, such as sulfuric acid, oxalic acid, phosphoric acid, chromic acid. Next, electrolytic anodizing is carried out moreover by applying lower voltage than the above-mentioned voltage in the same or different electrolytic bath. Then, alternating current electrolysis is performed by using said Al material and metals nobler than Al, such as nickel, stainless steel or carbon, as both poles in the electrolytic bath containing tin salts or nickel salt.
COPYRIGHT: (C)1981,JPO&Japio
JP9439579A 1979-07-24 1979-07-24 Electrolytic coloring method for aluminum Pending JPS5620194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9439579A JPS5620194A (en) 1979-07-24 1979-07-24 Electrolytic coloring method for aluminum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9439579A JPS5620194A (en) 1979-07-24 1979-07-24 Electrolytic coloring method for aluminum

Publications (1)

Publication Number Publication Date
JPS5620194A true JPS5620194A (en) 1981-02-25

Family

ID=14109073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9439579A Pending JPS5620194A (en) 1979-07-24 1979-07-24 Electrolytic coloring method for aluminum

Country Status (1)

Country Link
JP (1) JPS5620194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181296A (en) * 1984-02-28 1985-09-14 Nippon Koki Kk Surface treatment of aluminum or aluminum alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181296A (en) * 1984-02-28 1985-09-14 Nippon Koki Kk Surface treatment of aluminum or aluminum alloy

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