Invention Application
- Patent Title: TWO-STEP SEALING OF ANODIZED ALUMINUM COATINGS
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Application No.: US15344351Application Date: 2016-11-04
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Publication No.: US20180127883A1Publication Date: 2018-05-10
- Inventor: Zhongfen Ding , Weilong Zhang , Blair A. Smith , Mark R. Jaworowski , Georgios S. Zafiris
- Applicant: Hamilton Sundstrand Corporation
- Main IPC: C23F11/18
- IPC: C23F11/18 ; C09D5/08
Abstract:
A method includes providing a workpiece with at least one surface having an anodized aluminum coating and a trivalent chromium sealant. The at least one surface of the workpiece is submerged in a post-treatment sealant solution for 0.5 to 20 minutes. The sealant composition consists essentially of a corrosion inhibitor, an organic complexing agent, and an oxidant.
Information query
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