发明名称 |
PROCESS FOR PRODUCING A SOL-GEL COATING ON A SURFACE TO BE COATED OF A COMPONENT AND ALSO CORRESPONDING COMPONENT |
摘要 |
The disclosure concerns a process for producing a sol-gel coating on a surface of a component made of aluminum or of an aluminum alloy that is to be coated, comprising the following steps: anodization of the surface through the application of an electrical voltage over a particular time period so as to form an anodized layer on the surface; and deposition of a sol-gel coating on the surface. In doing so, the voltage applied for purposes of anodizing is, by way of a particular potential gradient, continuously increased in the direction of a holding voltage that is maintained throughout the rest of the anodization time, in particular up to the holding voltage. The disclosure furthermore concerns a component made of aluminum or an aluminum alloy. |
申请公布号 |
US2015259818(A1) |
申请公布日期 |
2015.09.17 |
申请号 |
US201314434401 |
申请日期 |
2013.10.08 |
申请人 |
SÜDDEUTSCHE ALUMINIUM MANUFAKTUR GMBH ;HANS UND OTTMAR BINDER GBR |
发明人 |
Binder Hans;Binder Ottmar;Kreitmeier Markus |
分类号 |
C25D11/24;C23C18/12;C25D11/02 |
主分类号 |
C25D11/24 |
代理机构 |
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代理人 |
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主权项 |
1. A process for producing a sol-gel coating on a surface of a component made of aluminum or of an aluminum alloy that is to be coated, the process comprising:
anodization of the surface by applying of an electrical voltage for a particular anodizing time period so as to produce a anodized layer at the surface, and formation of the sol-gel coating on the surface, wherein the voltage applied for purposes of anodizing is continuously increased toward a holding voltage from the start of the anodization time period by way of a particular potential gradient, up to the holding voltage which is retained over the remainder of the anodization period. |
地址 |
Böhmenkirch DE |