JPS5767749A - Formation of solar energy selective absorptive film on surface of aluminum material - Google Patents

Formation of solar energy selective absorptive film on surface of aluminum material

Info

Publication number
JPS5767749A
JPS5767749A JP14322080A JP14322080A JPS5767749A JP S5767749 A JPS5767749 A JP S5767749A JP 14322080 A JP14322080 A JP 14322080A JP 14322080 A JP14322080 A JP 14322080A JP S5767749 A JPS5767749 A JP S5767749A
Authority
JP
Japan
Prior art keywords
voltage
aluminum plate
formation
solar energy
aluminum material
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.)
Granted
Application number
JP14322080A
Other languages
Japanese (ja)
Other versions
JPS6323460B2 (en
Inventor
Tatsuo Otsuka
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.)
Showa Aluminum Can Corp
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 JP14322080A priority Critical patent/JPS5767749A/en
Publication of JPS5767749A publication Critical patent/JPS5767749A/en
Publication of JPS6323460B2 publication Critical patent/JPS6323460B2/ja
Granted 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

Abstract

PURPOSE: To shorten the time required for the electrolytic treatment of an aluminum plate in an aqueous solution containing a metal salt by applying DC voltage of PR wave form in which the polarity of current is periodically changed and the negative voltage is higher than the positive.
CONSTITUTION: A 1mm-thick aluminum plate of a purity (by JIS-Al050P) is deoiled by an usual pretreatment method and then subjected to an anodizing treatment in a 40g/l phosphoric acid aqueous solution kept at 30°C and using carbon as a counter electrode while applying a voltage of DC 8V for 15min. Afterwards, the aluminum plate so treated is subjected to an electrolytic treatment in an electrolyte composed of 45g/l of nickel acetate and 45g/l of boric acid, with a pH of 6.4, or of 45g/l of nickel sulfate and 45g/l of boric acid, with a pH of 4.3, kept at 25°C. The power source used is a voltage of PR wave form.
COPYRIGHT: (C)1982,JPO&Japio
JP14322080A 1980-10-13 1980-10-13 Formation of solar energy selective absorptive film on surface of aluminum material Granted JPS5767749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14322080A JPS5767749A (en) 1980-10-13 1980-10-13 Formation of solar energy selective absorptive film on surface of aluminum material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14322080A JPS5767749A (en) 1980-10-13 1980-10-13 Formation of solar energy selective absorptive film on surface of aluminum material

Publications (2)

Publication Number Publication Date
JPS5767749A true JPS5767749A (en) 1982-04-24
JPS6323460B2 JPS6323460B2 (en) 1988-05-17

Family

ID=15333679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14322080A Granted JPS5767749A (en) 1980-10-13 1980-10-13 Formation of solar energy selective absorptive film on surface of aluminum material

Country Status (1)

Country Link
JP (1) JPS5767749A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5426014A (en) * 1977-07-29 1979-02-27 Fuji Giken Kogyo Vacuum block

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5426014A (en) * 1977-07-29 1979-02-27 Fuji Giken Kogyo Vacuum block

Also Published As

Publication number Publication date
JPS6323460B2 (en) 1988-05-17

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