Solid lubricant and hardenable steel coating system

Details Solid lubricant and hardenable steel coating system Solid lubricant and hardenable steel coating system

1993-07-06

1994-07-26

Wyzsomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75253, 75254, B22F 100

Patent

active

053324226

ABSTRACT:
A plasma sprayable powder for coating surfaces such as cylinder bores of an internal combustion engine, comprising grain size agglomerates of (i) a plurality of solid lubricant particles selected from the group consisting of graphite, MoS.sub.2, BN, CaF.sub.2, and LiF; and (ii) fusable ingredients adjacent the solid lubricant particles, the ingredients being air-hardenable upon friction-promoting-use, and the lubricants and fusable ingredients being agglomerated together by a low melting medium in the grains.
A solid lubricant coating system for use with a metal interface subject to high temperatures and wet lubrication, comprising agglomerates of particles of (i) solid lubricant particles selected from the group consisting of graphite, boron nitride, molybdenum disulfide, lithium fluoride, NaF, WS.sub.2, and calcium fluoride; and (ii) steel particles fused together and bounding said solid lubricant particles at least at certain intersections, certain portions of said steel particles being air-hardened to a high hardness upon exposure of the coating to the interface at high temperatures.

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patent: 4872432 (1989-10-01), Rao et al.
patent: 5080056 (1992-01-01), Kramer et al.
patent: 5154881 (1992-10-01), Rutz et al.

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