| 发明名称 |
Surface-treated aluminum alloy substrates for magnetic disks |
| 摘要 |
A method for treating surfaces of magnetic disk substrates of aluminum alloy with an anodic oxide film on the surfaces thereof, the method comprising: dissolving part of the anodic oxide film by an etching treatment to broaden micro pores of the anodic oxide film to a diameter greater than 170 ANGSTROM .
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| 申请公布号 |
US4631112(A) |
申请公布日期 |
1986.12.23 |
| 申请号 |
US19850724639 |
申请日期 |
1985.04.18 |
| 申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO |
发明人 |
USUI, EIKI;KAWAGUCHI, MASAHIRO |
| 分类号 |
C23F1/00;C25D11/24;G11B5/73;G11B5/738;G11B5/84;(IPC1-7):B44C1/22;C03C15/00;C03C25/06 |
主分类号 |
C23F1/00 |
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