Patent · US Active

Method for producing a contact material on the basis of silver-tin oxide or silver-zinc oxide, and contact material

US10861655B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

DODUCO CONTACTS AND REFINING GMBH · DE

Inventors

Thomas Honig · Tiefenbronn, DE
Volker Behrens · Bretten, DE
Havva Cinaroglu · Wiernsheim, DE

Key dates

Filing date	Sep 15, 2018
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Dec 7, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/02372
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for producing a contact material on the basis of silver-tin oxide or silver-zinc oxide is disclosed. Tin oxide particles and/or zinc oxide particles are mixed with a powder of a metal different from silver. The mixture is heated beyond the melting point of the metal powder such that the tin oxide particles and/or zinc oxide particles are wetted with liquid metal. The mixture is exposed to an atmosphere containing oxygen and the metal is thereby oxidized. Thereafter, the mixture product formed by the oxidation step is embedded as a powder into a silver matrix. The product further relates to a corresponding contact material.

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