Patent · US Active

Metal powder

US8523976B2 · kind B2 · utility

0Cited by

5References

21Claims

0Family size

Assignee

H.C. STARCK INC. · US

Inventors

Benno Gries · Wolfenbüttel, DE
Leo Prakash · Karlsruhe, DE

Key dates

Filing date	Sep 21, 2007
Grant date	Sep 3, 2013
Priority date	—
Expiry date	May 7, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2998/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a metal powder mixture that is suitable for producing sintered bodies. The powder mixture is suitable as a binder for hard metals and contains: a) at least one prealloyed powder selected from the group of iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt; b) at least one element powder selected from the group of iron, nickel and cobalt or a prealloyed powder selected from the group consisting of iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt which is different from component a). The invention also relates to a cemented hard material which uses the inventive powder mixture and a hard material powder, wherein the overall composition of the components a) and b) together contains not more than 90% by weight of cobalt and not more than 70% by weight of nickel and the iron content.

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