JPS579899A - Method of forming selective absorption membrane for solar heat energy on surface of aluminum material - Google Patents

Method of forming selective absorption membrane for solar heat energy on surface of aluminum material

Info

Publication number
JPS579899A
JPS579899A JP8184980A JP8184980A JPS579899A JP S579899 A JPS579899 A JP S579899A JP 8184980 A JP8184980 A JP 8184980A JP 8184980 A JP8184980 A JP 8184980A JP S579899 A JPS579899 A JP S579899A
Authority
JP
Japan
Prior art keywords
salt
soln
aqueous
aluminum material
selective absorption
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
JP8184980A
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 JP8184980A priority Critical patent/JPS579899A/en
Publication of JPS579899A publication Critical patent/JPS579899A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Landscapes

  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

PURPOSE: To shorten a treatment time and form a superior selective absorption membrane by anodizing an aluminum material to form a porous oxide film thereon, thence subjecting the same to electrolytic treatment in two divided stages of a specific aqueous metallic salt soln. and an aqueous tin salt soln.
CONSTITUTION: A pretreated aluminum material is anodized by a conventional method. An aqueous phosphoric acid soln. of preferably ≥50g/l concn. and 35W 80°C soln. temps. is used. The thickness of the membrane is about ≤1μm, and the treatment time is about 0.5W3.0min. Thence, primary electrolysis is carried out in an aqueous metallic salt soln. The concns. of metallic salts are 50W200g/l Ni salt, 50W200g/l Co salt, 15W100g/l copper salt, and 20W200g/l iron salt, either one of which is used. Further, the secondary electrolysis is carried out in an aqueous soln. of 2W50g/l tin salt. Thereby, the treatment time for the purpose of blackening is considerably reduced, and the treatment is completed in about optimum time 1W3min.
COPYRIGHT: (C)1982,JPO&Japio
JP8184980A 1980-06-16 1980-06-16 Method of forming selective absorption membrane for solar heat energy on surface of aluminum material Pending JPS579899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8184980A JPS579899A (en) 1980-06-16 1980-06-16 Method of forming selective absorption membrane for solar heat energy on surface of aluminum material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8184980A JPS579899A (en) 1980-06-16 1980-06-16 Method of forming selective absorption membrane for solar heat energy on surface of aluminum material

Publications (1)

Publication Number Publication Date
JPS579899A true JPS579899A (en) 1982-01-19

Family

ID=13757919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8184980A Pending JPS579899A (en) 1980-06-16 1980-06-16 Method of forming selective absorption membrane for solar heat energy on surface of aluminum material

Country Status (1)

Country Link
JP (1) JPS579899A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7347592B2 (en) 2005-07-14 2008-03-25 Hewlett-Packard Development Company, L.P. Light source for a projection system having a light absorption layer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7347592B2 (en) 2005-07-14 2008-03-25 Hewlett-Packard Development Company, L.P. Light source for a projection system having a light absorption layer

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