Patent · US Expired

Friction element and method for the production thereof

US5968604A · kind A · utility

3Cited by

2References

8Claims

0Family size

Assignees

Euroflamm, GmbH · DE
Diehl Stiftung & Co. KG · DE

Inventors

Werner Bischoff-Bogon · Bremen, DE
Friedrich Gebhard · Achern, DE

Key dates

Filing date	Jun 19, 1998
Grant date	Oct 19, 1999
Priority date	—
Expiry date	Jun 19, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D23/025
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A friction element has a base element on which a coating is applied by thermal spraying of a copper alloy. The copper alloy contains 27 to 35 wt % zinc, 4 to 6 wt % aluminum, 2 to 4 wt % nickel, 0.5 to 2 wt % titanium, and copper as the remainder, with random contaminants. The copper alloy is applied onto a base element by thermal spraying, and requires only a finish treatment by stamping to achieve good tribological properties and wear resistance that are comparable to molybdenum coatings. Alternative copper-zinc alloys can have, in particular, manganese, iron, and lead constituents.

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