JPS56166396A - Formation of bright self-coloring anodically oxidized film of aluminum or its alloy - Google Patents

Formation of bright self-coloring anodically oxidized film of aluminum or its alloy

Info

Publication number
JPS56166396A
JPS56166396A JP6972080A JP6972080A JPS56166396A JP S56166396 A JPS56166396 A JP S56166396A JP 6972080 A JP6972080 A JP 6972080A JP 6972080 A JP6972080 A JP 6972080A JP S56166396 A JPS56166396 A JP S56166396A
Authority
JP
Japan
Prior art keywords
oxidized film
anodically oxidized
acid
bath
alloy
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
JP6972080A
Other languages
Japanese (ja)
Inventor
Yoji Ishida
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.)
Furukawa Aluminum Co Ltd
Original Assignee
Furukawa Aluminum 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 Furukawa Aluminum Co Ltd filed Critical Furukawa Aluminum Co Ltd
Priority to JP6972080A priority Critical patent/JPS56166396A/en
Publication of JPS56166396A publication Critical patent/JPS56166396A/en
Pending legal-status Critical Current

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  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To form an anodically oxidized film having brightness and a dark color tone by anodizing an Al or Al alloy product to form a transparent or semitransparent anodically oxidized film and subjecting the same to self-coloring anodizing.
CONSTITUTION: After an Al or Al alloy material is degreased, it is immersed in a chemical polishing bath of phosphoric acid-sulfuric acid-nitric acid system, whereby it is chemically polished. After this treatment is applied, it is anodized by using a sulfuric acid bath, an oxalic acid bath or an org. acid bath to form a transparent or semitransparent anodically oxidized film. Next, this is again anodized by using an org. acid bath consisting of 100g/l sulfosalicylic acid and 5g/l sulfuric acid to form a colored anodically oxidized film of a dark color tone, and finally the pores are sealed by an acetic acid nickel type sealing agent. This yields the anodically oxidized film of high brightness and a dark color tone.
COPYRIGHT: (C)1981,JPO&Japio
JP6972080A 1980-05-26 1980-05-26 Formation of bright self-coloring anodically oxidized film of aluminum or its alloy Pending JPS56166396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6972080A JPS56166396A (en) 1980-05-26 1980-05-26 Formation of bright self-coloring anodically oxidized film of aluminum or its alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6972080A JPS56166396A (en) 1980-05-26 1980-05-26 Formation of bright self-coloring anodically oxidized film of aluminum or its alloy

Publications (1)

Publication Number Publication Date
JPS56166396A true JPS56166396A (en) 1981-12-21

Family

ID=13410947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6972080A Pending JPS56166396A (en) 1980-05-26 1980-05-26 Formation of bright self-coloring anodically oxidized film of aluminum or its alloy

Country Status (1)

Country Link
JP (1) JPS56166396A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820740A (en) * 1996-03-18 1998-10-13 Aluminum Finishing Corporation High-absorptance high-emittance anodic coating
CN1330794C (en) * 2004-10-12 2007-08-08 南京大学 Preparation for self-supporting ordered through hole alumina film
CN112410845A (en) * 2020-11-27 2021-02-26 广东和胜工业铝材股份有限公司 Secondary anodic oxidation treatment method for aluminum alloy

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497136A (en) * 1972-05-12 1974-01-22
JPS5310336A (en) * 1976-07-15 1978-01-30 Shokosha Kk Selffcolor anodic oxidation process for aluminum and aluminum alloy
JPS53131238A (en) * 1977-04-21 1978-11-15 Sankyo Aruminiumu Kougiyou Kk Electrolytic color formation method of aluminium
JPS5419437A (en) * 1977-07-14 1979-02-14 Sankyo Aruminiumu Kougiyou Kk Surface treating method of aluminum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497136A (en) * 1972-05-12 1974-01-22
JPS5310336A (en) * 1976-07-15 1978-01-30 Shokosha Kk Selffcolor anodic oxidation process for aluminum and aluminum alloy
JPS53131238A (en) * 1977-04-21 1978-11-15 Sankyo Aruminiumu Kougiyou Kk Electrolytic color formation method of aluminium
JPS5419437A (en) * 1977-07-14 1979-02-14 Sankyo Aruminiumu Kougiyou Kk Surface treating method of aluminum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820740A (en) * 1996-03-18 1998-10-13 Aluminum Finishing Corporation High-absorptance high-emittance anodic coating
US5948542A (en) * 1996-03-18 1999-09-07 Mcdonnell Douglas Corporation High-absorptance high-emittance anodic coating
CN1330794C (en) * 2004-10-12 2007-08-08 南京大学 Preparation for self-supporting ordered through hole alumina film
CN112410845A (en) * 2020-11-27 2021-02-26 广东和胜工业铝材股份有限公司 Secondary anodic oxidation treatment method for aluminum alloy
CN112410845B (en) * 2020-11-27 2022-05-13 广东和胜工业铝材股份有限公司 Secondary anodic oxidation treatment method for aluminum alloy

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