JPS5785997A - Production of absorptive plate for solar heat energy - Google Patents
Production of absorptive plate for solar heat energyInfo
- Publication number
- JPS5785997A JPS5785997A JP16055680A JP16055680A JPS5785997A JP S5785997 A JPS5785997 A JP S5785997A JP 16055680 A JP16055680 A JP 16055680A JP 16055680 A JP16055680 A JP 16055680A JP S5785997 A JPS5785997 A JP S5785997A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- bath
- electrolytic treatment
- oxide film
- electrolytic bath
- 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
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 produce a titled absorptive plate of a high rate of metal adsorption and small emissivity of energy by subjecting an Al material to an electrolytic treatment in an alkali electrolytic bath contg. a sodium phosphate compound to form oxide film pores of ramification structure on its surface then subjecting the same further to an electrolytic treatment in an electrolytic bath contg. a metallic salt.
CONSTITUTION: A primary electrolytic bath consisting of a sodium phosphate compound (e.g.; Na3PO4) and org. acids and/or inorg. acids (e.g.; salicyclic acid, sulfuric acid) and if necessary, added with a polyhydric alcohol or fluoride as an assistant and of 7W14pH is prepd. Next, Al (alloy) is subjected to a primary electrolytic treatment in this electrolytic bath at 20W70°C bath temps., whereby numerous oxide film pores of 0.1W10μ depth are formed on the surface of the Al material. The Al material after the electrolytic treatment is subjected to a secondary electrolytic treatment at 20W50°C bath temps. in an electrolytic bath contg. a water soluble metallic salt (e.g., cobalt sulfate and boric acid) to adsorb metal on said oxide film pores. Thereby, the absorptive plate for solar energy having high energy absorptivity other than the above-described properties is obtd.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16055680A JPS5785997A (en) | 1980-11-13 | 1980-11-13 | Production of absorptive plate for solar heat energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16055680A JPS5785997A (en) | 1980-11-13 | 1980-11-13 | Production of absorptive plate for solar heat energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5785997A true JPS5785997A (en) | 1982-05-28 |
Family
ID=15717539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16055680A Pending JPS5785997A (en) | 1980-11-13 | 1980-11-13 | Production of absorptive plate for solar heat energy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5785997A (en) |
-
1980
- 1980-11-13 JP JP16055680A patent/JPS5785997A/en active Pending
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