Patent · US Expired

Method and apparatus for aluminum nitride coating of a contact surface, especially a cylinder contact surface of a crankcase made of an aluminum basic alloy

US6180189A · kind A · utility

1Cited by

14References

8Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Juergen Steinwandel · Überlingen, DE
Joerg Hoeschele · Stuttgart, DE
Theodor Staneff · Bermatingen, DE
Axel Heuberger · Wildberg, DE

Key dates

Filing date	Apr 24, 1998
Grant date	Jan 30, 2001
Priority date	—
Expiry date	Apr 24, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C16/303
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a method for aluminum nitride coating of cylinder contact surfaces (ZL) of a crankcase (KG) made of an aluminum basic alloy where the aluminum nitride coating is performed by surface nitriding of the aluminum basic alloy, and the activated nitrogen is generated by a high-pressure plasma process.

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