Patent · US Expired

Multilayer material for sliding elements and process and means for the production thereof

US6103089A · kind A · utility

1Cited by

0References

12Claims

0Family size

Assignee

Federal-Mogul Wiesbaden GmbH · DE

Inventors

Klaus Staschko · Idstein, DE
Hans-Ulrich Huhn · Schlangenbad, DE
Klaus Muller · Wiesbaden, DE
Joachim Heyer · Neunkirchen, DE

Key dates

Filing date	Nov 20, 1998
Grant date	Aug 15, 2000
Priority date	—
Expiry date	Nov 20, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12701
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A multilayer material is described, whose overlay exhibits improved hardness and improved wear-resistance. The multilayer material includes an overlay, which contains 8-18.5 wt. % tin and 2-16 wt. % copper, the balance being lead, wherein the tin is present as a finely crystalline deposit completely homogeneously distributed in the lead. A process for producing sliding elements in which the overlay of lead-tin-copper is applied to the prefabricated semi-finished product by electroplating provides that a ternary, fluoroborate-free electroplating bath is used without brighteners and with the addition of fatty acid polyglycol ester and a grain refining agent including a carboxylic acid.

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