发明名称 |
SCHWARZCHROMUEBERZUG FUER SOLARSELEKTIV-SCHICHTEN FUER SOLARKOLLEKTOREN |
摘要 |
A black chrome electrolyte for the formation of selective layers for solar collectors electrolyte comprising chromium trioxide (CrO3), fluorosilic acid (H2SiF6) as a catalyst and soidum molybdate (Na2MoO4. 2H2O). A substrate is brought into contact with the electrolyte at a current density of 0.40 to 0.60 Acm-2 and a bath temperature of less than 20 DEG C. for 15 to 30 secs. |
申请公布号 |
DE3029637(A1) |
申请公布日期 |
1982.02.18 |
申请号 |
DE19803029637 |
申请日期 |
1980.08.05 |
申请人 |
M.A.N. MASCHINENFABRIK AUGSBURG-NUERNBERG AG |
发明人 |
MUEHLRATZER,AUGUST,DIPL.-CHEM.DR. |
分类号 |
C25D3/08;F24J2/48;(IPC1-7):25D3/08;24J3/02 |
主分类号 |
C25D3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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