发明名称 |
Method of removing Ti film and apparatus |
摘要 |
An aqueous solution (20) of an alkali hydroxide is stored and held in a tank (1). An electrode (5) is disposed in the tank (1), and a member (11) coated with a Ti-derived film is disposed in the tank (1) so as to be surrounded with the electrode (5). In this state, a power source (6) applies a negative potential to the electrode (5) and a positive potential to the member (11) to flow electricity between the electrode (5) and the member (11) immersed in the aqueous solution (20). Thus, the Ti-derived film coated on the surface of the member (11) is chemically removed by the aqueous solution (20).
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申请公布号 |
US6531049(B1) |
申请公布日期 |
2003.03.11 |
申请号 |
US19990381714 |
申请日期 |
1999.09.28 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
KARIYA AKIO;HAMAJIMA TAKUMI;MORIMOTO SATOSHI;ISHIMARU TOSHIAKI;KAKUTANI AKIHIDE |
分类号 |
C25F5/00;(IPC1-7):C25F5/00;C25B9/00 |
主分类号 |
C25F5/00 |
代理机构 |
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主权项 |
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