Patent · US Active

Rock drill button

US10895001B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Anders Nordgren · Nacka, SE
Anna EKMARKER · Stockholm, SE
Susanne Norgren · Huddinge, SE

Key dates

Filing date	Mar 23, 2016
Grant date	Jan 19, 2021
Priority date	—
Expiry date	Mar 23, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2005/001
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A rock drill button having a body of sintered cemented carbide that has hard constituents of tungsten carbide (WC) in a binder phase of Co, wherein the cemented carbide has 4-12 mass % Co and balance WC and unavoidable impurities. The cemented carbide also has Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 μm.

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