Patent · US Active

Polycrystalline diamond compact

US11377910B2 · kind B2 · utility

9Cited by

1References

10Claims

0Family size

Assignee

SF DIAMOND CO., LTD. · CN

Inventors

Dongpeng Zhao · Zhengzhou, CN
Weifeng Du · Zhengzhou, CN
Shanshan Ma · Zhengzhou, CN
Tongjian NIU · Zhengzhou, CN
Haijiang Fang · Zhengzhou, CN

Key dates

Filing date	Aug 18, 2019
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Oct 11, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2237/64
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A polycrystalline diamond compact including a cemented carbide substrate and a polycrystalline diamond layer bonded to the cemented carbide substrate. The polycrystalline diamond layer is nonplanar and includes a central part and a peripheral part surrounding the central part. The central part includes a protruding surface relative to the peripheral part. The protruding surface is spherical or planar. The peripheral part includes a plurality of radially-disposed ridges.

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