Patent · US Active

Method for handling hard metal

US9101960B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Stefan Backlund · Lindenstraße, SE
Ulf Jutterstrom · Stockholm, SE

Key dates

Filing date	Jun 14, 2012
Grant date	Aug 11, 2015
Priority date	—
Expiry date	Jun 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for sorting hard metal including the steps of subjecting one or more bodies of hard metal to a heat treatment at a temperature of 500° C. or higher in an atmosphere including at least one reactive gas component prone to form a reaction product with an element that may or may not be present in the one or more bodies. A sorting operation of the one or more bodies is performed based on a presence or absence of the reaction product in a surface portion of the heat treated one or more bodies.

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