Patent · US Active

Process for the surface treatment of aluminium

US8549746B2 · kind B2 · utility

1Cited by

13References

6Claims

0Family size

Assignee

VALEO SCHALTER UND SENSOREN GMBH · DE

Inventors

Hans-Wilhelm Wehling · Oberhausen, DE
Stefan Muller · Weil am Rhein, DE
Dietmar Gruedl · Asperg, DE

Key dates

Filing date	Jul 9, 2008
Grant date	Oct 8, 2013
Priority date	—
Expiry date	Jul 9, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49222
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention proposes a process for the surface treatment of aluminum in order to produce an electrical contact, and a corresponding component part, wherein an oxide layer on the aluminum surface is removed, for example by etching, in a first step and, in a second step, before an oxide layer is re-formed, the surface is sealed wet-chemically with a conversion layer having metal ions of zirconium or titanium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.