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:
Dec. 08, 1998
Filed:
Jul. 09, 1996
V Durga Rao, Bloomfield Township, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A collection of agglomerated anti-friction grains for plasma deposition, the grains each consisting essentially of (a) H.sub.2 O atomized stainless steel particles, (b) solid lubricant particles consisting of at least one of boron nitride or a eutectic of calcium fluoride and lithium fluoride, and (c) a binder holding said steel and solid lubricant particles together for plasma spraying, said binder being present in an amount of 0.5-4.0% by weight and is vaporizable at the temperature of plasma spraying and does not interfere with the deposited process. A method of making agglomerated grains of powder suitable for plasma deposition, by (a) H.sub.2 O atomization of a molten stream of martensitic stainless steel to produce a collection of first particles, (b) uniformly blending such first particles with solid lubricant second particles and a binder agent in a slurry, the binder agent being present in a small amount and being constituted to vaporize at the temperature of plasma spraying, and (c) mist spraying the slurry into a heated chamber to form a collection of porous rounded granules.