发明名称 |
Method for chromium plating titanium alloy |
摘要 |
A method for chromium plating a part made of titanium or titanium alloy eliminates the conventional chemical cleaning of the part prior to electroplating, and instead employs a mechanical cleaning of the part including degreasing the part and then grit-blasting the part with aluminum oxide particles. Immediately following the grit-blasting step, for example within one minute of its completion, the part is connected to the negative terminal of a DC power supply and is then immersed into a bath of chromium plating solution which contains an anode element connected to the positive terminal of the power supply. The part is left in the bath for a period of time so as to deposit a plating of chromium on the surface of the part. For final finishing of the part, a post-plating grinding operation is performed in which the surface speed of the grinding wheel is not greater than about 6500 surface feet per minute and the in-feed rate is less than about 0.00015 inch per pass of the grinding wheel, and preferably is about 0.0001 inch per pass.
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申请公布号 |
US6039860(A) |
申请公布日期 |
2000.03.21 |
申请号 |
US19980188731 |
申请日期 |
1998.11.09 |
申请人 |
MCDONNELL DOUGLAS CORPORATION |
发明人 |
COOPER, AUSTIN M.;HAZENCOMB, ROBERT M.;SILVA, ALBERT W.;WRIGHT, ROBERT WILLIAM |
分类号 |
C25D5/38;C25D5/48;(IPC1-7):C25D5/34;C23C22/24;C25D5/52 |
主分类号 |
C25D5/38 |
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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