Patent · US Active

Method of treating a mining insert

US11898213B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignees

AB Sandvik Coromant · SE
Sandvik Mining and Construction Tools AB · SE

Inventors

Ioannis ARVANITIDIS · Älta, SE
Andreas Blomqvist · Stockholm, SE
Jose Luis GARCIA · Stockholm, SE
Erik HOLMSTROM · Huddinge, SE
Mirjam Lilja · Stockholm, SE

Key dates

Filing date	Dec 18, 2020
Grant date	Feb 13, 2024
Priority date	—
Expiry date	Dec 18, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2998/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of treating a sintered mining insert including cemented carbide includes the step of subjecting the mining insert to a surface hardening process. The surface hardening process is executed at an elevated temperature of or above 100° C. A mining insert is also provided, wherein the HV1 Vickers hardness measurement increase (HV1%) from the surface region, measured as an average of HV1 measurements taken at 100 μm, 200 μm and 300 μm below the surface, compared to the HV1 Vickers hardness measured in the bulk (HV1bulk), is at least 8.05-0.00350×HV1bulk.

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