发明名称 |
Removal of Ormosil films from metal substrates |
摘要 |
A process for chemical removal of organically-modified silicate (Ormosil) coatings from aluminum alloy substrates without degradation of the underlying metal. An Ormosil film is treated with a zincate solution. The zincate solution dissolves the Ormosil film and deposits a thin, easily-removed layer of zinc onto the aluminum alloy surface, which prevents base-activated dissolution of the underlying metal. The zinc layer may be removed using dilute phosphoric acid, leaving the surface of the aluminum alloy intact. Consequently, the sol-gel coating may be removed while the integrity of the aluminum alloy substrate is maintained.
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申请公布号 |
US6709707(B2) |
申请公布日期 |
2004.03.23 |
申请号 |
US20020238028 |
申请日期 |
2002.09.09 |
申请人 |
THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITY |
发明人 |
KNOBBE EDWARD T.;KACHURINA OLGA;METROKE TAMMY L. |
分类号 |
C09D9/00;C23G1/14;C23G1/22;(IPC1-7):B05D3/10;B05D1/18;B05D1/02;B05D1/28 |
主分类号 |
C09D9/00 |
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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