JPS5723095A - Forming method for solar energy selective absortion film on surface of aluminum material - Google Patents

Forming method for solar energy selective absortion film on surface of aluminum material

Info

Publication number
JPS5723095A
JPS5723095A JP9668680A JP9668680A JPS5723095A JP S5723095 A JPS5723095 A JP S5723095A JP 9668680 A JP9668680 A JP 9668680A JP 9668680 A JP9668680 A JP 9668680A JP S5723095 A JPS5723095 A JP S5723095A
Authority
JP
Japan
Prior art keywords
film
less
content
solar energy
oxide film
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
JP9668680A
Other languages
Japanese (ja)
Inventor
Susumu Inoue
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 JP9668680A priority Critical patent/JPS5723095A/en
Publication of JPS5723095A publication Critical patent/JPS5723095A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Landscapes

  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To form the titled absorption film having excellent selective absorption properties, by performing the anodic oxidation treatment of an Al material containing a small amount of Cu, Si and Fe and then by electrolytically treating the material in an aqueous solutioh containing a metallic salt.
CONSTITUTION: The anodic oxidation treatment of an Al material comprising an Al alloy cntaining 0.005W0.10% Cu, 0.6% or less Si and 0.6% or less Fe in carried out. When the content of Cu is in the above-mentioned range, the anodic oxide film being formed has an improved transparency and the growth of the film is restrained so that a thin stable film can be formed. As a result, the finally formed selective absorption film has has an improved performance. In pasticular, it has a small radiation ratio. Since Si and Fe degrade the radiation rate, the small content thereof is preferable so that the content of each of them is limited to a value of 0.6% or less. After the oxide film treatment, the Al material is electrolytically treated in an electrolytical liquid containing a metallic salt to blacken the anode oxide film and thus the film having excellent selective absorption properties for solar energy can be formed.
COPYRIGHT: (C)1982,JPO&Japio
JP9668680A 1980-07-14 1980-07-14 Forming method for solar energy selective absortion film on surface of aluminum material Pending JPS5723095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9668680A JPS5723095A (en) 1980-07-14 1980-07-14 Forming method for solar energy selective absortion film on surface of aluminum material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9668680A JPS5723095A (en) 1980-07-14 1980-07-14 Forming method for solar energy selective absortion film on surface of aluminum material

Publications (1)

Publication Number Publication Date
JPS5723095A true JPS5723095A (en) 1982-02-06

Family

ID=14171668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9668680A Pending JPS5723095A (en) 1980-07-14 1980-07-14 Forming method for solar energy selective absortion film on surface of aluminum material

Country Status (1)

Country Link
JP (1) JPS5723095A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106568207A (en) * 2016-10-26 2017-04-19 中国大唐集团科学技术研究院有限公司 High-temperature solar spectrum selective absorbing coating and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920463A (en) * 1972-06-19 1974-02-22
JPS5327215A (en) * 1976-08-27 1978-03-14 Kubota Ltd Unit residence

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920463A (en) * 1972-06-19 1974-02-22
JPS5327215A (en) * 1976-08-27 1978-03-14 Kubota Ltd Unit residence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106568207A (en) * 2016-10-26 2017-04-19 中国大唐集团科学技术研究院有限公司 High-temperature solar spectrum selective absorbing coating and preparation method thereof

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