JPS5633498A - Coloring method for anodic oxidation coating of aluminum or aluminum alloy - Google Patents

Coloring method for anodic oxidation coating of aluminum or aluminum alloy

Info

Publication number
JPS5633498A
JPS5633498A JP10831579A JP10831579A JPS5633498A JP S5633498 A JPS5633498 A JP S5633498A JP 10831579 A JP10831579 A JP 10831579A JP 10831579 A JP10831579 A JP 10831579A JP S5633498 A JPS5633498 A JP S5633498A
Authority
JP
Japan
Prior art keywords
electrolysis
coating
direct current
anodic oxidation
anodic
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
JP10831579A
Other languages
Japanese (ja)
Inventor
Akira Nomura
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.)
Tostem Corp
Original Assignee
Tostem 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 Tostem Corp filed Critical Tostem Corp
Priority to JP10831579A priority Critical patent/JPS5633498A/en
Publication of JPS5633498A publication Critical patent/JPS5633498A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To form a uniform, deep and beautiful colored coating not having a coloring unevenness, by impregnating Al etc. having the anodic oxidation coating, in the solution dissolved metal salts and succesively carring out direct current anodic electrolysis, alternating current electrolysis and direct current cathodic electrolysis under a specified condition.
CONSTITUTION: Al or Al alloy having oxidized coating by anodic oxidation treatment, is impregnated in the solution dissolved a suitable amount of one kind or two kinds or more of metal salts, such as each salt of Ni, Co, copper, tin and direct current anodic electrolysis by 30W40V voltage, 0.05W1A/dm2 current density, alternating current electrolysis by 6W20V, 0.01W1A/dm2 current density and direct current cathodic electrolysis by 30W40V voltage 0.05W1A/dm2 current density, are carried out successively for a fixed time. Then, simple substance or oxide of the metal salt, is settled and deposited in Al oxidized coating and desired uniform and deep colored coating is formed. Corrosion resistance is improved moreover by such formation of coating.
COPYRIGHT: (C)1981,JPO&Japio
JP10831579A 1979-08-25 1979-08-25 Coloring method for anodic oxidation coating of aluminum or aluminum alloy Pending JPS5633498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10831579A JPS5633498A (en) 1979-08-25 1979-08-25 Coloring method for anodic oxidation coating of aluminum or aluminum alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10831579A JPS5633498A (en) 1979-08-25 1979-08-25 Coloring method for anodic oxidation coating of aluminum or aluminum alloy

Publications (1)

Publication Number Publication Date
JPS5633498A true JPS5633498A (en) 1981-04-03

Family

ID=14481585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10831579A Pending JPS5633498A (en) 1979-08-25 1979-08-25 Coloring method for anodic oxidation coating of aluminum or aluminum alloy

Country Status (1)

Country Link
JP (1) JPS5633498A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142588A (en) * 1974-08-09 1976-04-10 Licentia Gmbh
JPS5339865A (en) * 1976-09-24 1978-04-12 Fujitsu Ltd Production of carrier tape

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142588A (en) * 1974-08-09 1976-04-10 Licentia Gmbh
JPS5339865A (en) * 1976-09-24 1978-04-12 Fujitsu Ltd Production of carrier tape

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