Patent · US Expired

Lubricant compositions for forging or extrusion

US4402838A · kind A · utility

8Cited by
2References
4Claims
0Family size

Assignees

Inventors

Key dates

Filing dateSep 11, 1981
Grant dateSep 6, 1983
Priority date
Expiry dateSep 11, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2050/02
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A lubricant composition for forging or extrusion comprising a mixture of: PA1 (A) at least one compound selected from among phosphoric acid and salts thereof, PA1 (B) at least one compound selected from among boric acid and salts thereof, PA1 (C) at least one compound selected from among carbonates, nitrates, sulfates and hydroxides of alkali metals, and PA1 (D) a phyllosilicate, the mixture containing the compounds (A) to (C) in amounts, calculated as oxides, of 40 to 44 mole % of P.sub.2 O.sub.5, up to 9 mole % of B.sub.2 O.sub.3 and 30 to 60 mole % of M.sub.2 O wherein M is an alkali metal, respectively.

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