| 发明名称 |
BARRIER ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOY SUBSTRATES |
| 摘要 |
In a barrier anodizing process for an aluminium or aluminium alloy substrate, the anodizing current density is maintained between 20 and 300 ma/cm<2> and the current is terminated after a period of time not appreciably exceeding the barrier formation time. The voltage is preferably maintained between 150 and 200 volts. |
| 申请公布号 |
DE3371918(D1) |
申请公布日期 |
1987.07.09 |
| 申请号 |
DE19833371918 |
申请日期 |
1983.02.01 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CONDAS, GEORGE ACHILLES;DOSS, SAAD KAMEL |
| 分类号 |
G11B5/84;C25D11/04;(IPC1-7):C25D11/04;C25D11/10 |
主分类号 |
G11B5/84 |
| 代理机构 |
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代理人 |
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| 主权项 |
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