发明名称 |
Anodizing method and apparatus |
摘要 |
An anodizing method in which a workpiece made of aluminum or aluminum alloy is immersed in an electrolytic solution, and treatment is performed in which the application of positive voltage for a very short period of time and the removal of charges are repeated alternately between the workpiece and a cathode arranged in the electrolytic solution includes a step of performing treatment in which the positive voltage application and the charge removal are repeated in a tentative cycle, measuring the control point arrival time of a current waveform at the positive voltage application period, and determining normal positive voltage application time based on the control point arrival time; and a step of performing treatment in which the application of positive voltage and the removal of charges are repeated in a cycle corresponding to the normal positive voltage application time, and forming an anodized film on the surface of the workpiece. |
申请公布号 |
US8728294(B2) |
申请公布日期 |
2014.05.20 |
申请号 |
US20090403577 |
申请日期 |
2009.03.13 |
申请人 |
YAMAMOTO TOMOHARU;TANAKA HIROOMI;FUJITA MASAHIRO;SUZUKI MOTOR CORPORATION |
发明人 |
YAMAMOTO TOMOHARU;TANAKA HIROOMI;FUJITA MASAHIRO |
分类号 |
C25D11/02;C25D11/04;C25D21/12 |
主分类号 |
C25D11/02 |
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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