Patent · US Expired

Hard metal or cermet body and method for producing the same

US6506226B1 · kind B1 · utility

5Cited by

7References

18Claims

0Family size

Assignee

Widia GmbH · DE

Inventors

Limin Chen · Dix Hills, US
Walter Lengauer · Leobendorf, AT
Hans Werner Daub
Klaus Dreyer · Essen, DE
Dieter Kassel · Ronnenberg, DE
Jose Luis GARCIA · Stockholm, SE
Georg Korb · Reutte, AT

Key dates

Filing date	Nov 3, 2000
Grant date	Jan 14, 2003
Priority date	—
Expiry date	Nov 3, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12028
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a hard metal or cermet body with a hard material phase consisting of WC and/or at least one carbide, nitride, carbonitride and/or oxicarbonitride of at least one of the elements from group IVa, Va, or VIa of the periodic table and a binding metal phase consisting of Fe, Co and/or Ni, said binding metal phase making up 3 to 25 mass %. In particular, WC crystallites should protrude beyond the hard metal or cermet surface of the by 2 to 20 &mgr;m in order to improve the adhesion of surface layers that are applied.

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