Patent · US Active

Fine grained cemented carbide with refined structure

US7938878B2 · kind B2 · utility

1Cited by

11References

8Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Susanne Norgren · Huddinge, SE
Alexandra Kusoffsky · Lidingö, SE
Alistair Grearson · Dudley, GB

Key dates

Filing date	May 30, 2008
Grant date	May 10, 2011
Priority date	—
Expiry date	Jun 22, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2222/28
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a fine grained WC-Co cemented carbide. By adding an extremely small amount of Ti, V, Zr, Ta or Nb alone or in combinations, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained.

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