The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2002
Filed:
Sep. 23, 1999
Paritosh Maulik, Coventry, GB;
Stephen Mcarthur, Coventry, GB;
Federal-Mogul Sintered Products Limited, West Midlands, GB;
Abstract
The method comprises preparing an iron-based powder mixture, and compressing and sintering the mixture to form the component. Said mixture comprises a first powder which forms 40 to 60 wt % of the mixture and which is an atomised pre-alloy comprising nickel, cobalt and iron, a second powder which forms 30 to 50 wt % of the mixture and essentially consists of iron, a third powder which essentially consists of ferromolybdenum, a fourth powder which essentially consists of graphite, and optionally a fifth powder which consists essentially of ferrotungsten. The component has a composition comprising 5 to 11 wt % of nickel, 5 to 11 wt % of cobalt, 5 to 8 wt % molybdenum, up to 1 wt % tungsten, 0.25 to 0.9 wt % carbon, and a balance which essentially consists of iron.