Link chain with chain joints coated with a hard material

US8661776B2 · kind B2 · utility

Assignee

• IWIS MOTORSYSTEME GMBH & CO. KG · DE

Inventors

• Gerald Joergensen · Fürstenfeldbruck, DE
• Stefan Belmer · Anzing, DE

Key dates

• Filing date: Sep 6, 2012
• Grant date: Mar 4, 2014
• Expiry date: Sep 6, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16G13/02
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A link chain is made of chain links connected by chain joints, a chain joint comprising at least one bearing and a pin guided in a pivotable manner and in contact with this chain joint bearing. At least one bearing surface of the pin or chain joint bearing has a hard material layer applied by a PVD process, formed from a compound including at least two metals and a non-metal, at least C, N or Si being selected as the non-metal and the two metals being selected from Cr, Mo, W, Ti, Cu, Zn, Zr, Ta, Nb, Al, B, V, Hf, whereby the two metals differ from each other and the first metal is present in the hard material layer in a crystal structure that differs from the crystal structure of the second metal.