Patent · US Active

Thermally conductive sand mould shell for manufacturing a matrix bit

US8814968B2 · kind B2 · utility

10Cited by
12References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 13, 2011
Grant dateAug 26, 2014
Priority date—
Expiry dateNov 17, 2032

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC22C1/1073
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A thermally conductive sand shell molding system allows for controlling heat flow in a molten metal infiltrate powdered metal drill bit molding system to differentially cool the mold system to control differential shrinking and accompanying stress concentrations.

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