Tungsten carbide for flame spraying

Details Tungsten carbide for flame spraying Tungsten carbide for flame spraying

C - Chemistry, Metallurgy

23

C

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C23C 4/10 (2006.01) C22C 1/05 (2006.01) C22C 29/08 (2006.01) C22F 1/00 (2006.01) C23C 4/06 (2006.01)

Patent

CA 1331878

ABSTRACT OF THE DISCLOSURE A cobalt bonded tungsten carbide powder is produced by a method comprising preparing a mixture consisting of a first tungsten carbide powder having a particle size of -5 microns, a second tungsten carbide powder having a partible size of -44 + 10 microns, a cobalt powder having a particle size of -5 microns and a carbon powder having a particle size of -1 micron. The mixture has proportions, by weight totaling 100%, of about 10% to 30% first tungsten carbide, 40% to 80% second tungsten carbide, 8% to 25% cobalt and 0.5 to 3% carbon. The mixture is processed by compacting, sintering, crushing, and classifying to produce the cobalt bonded tungsten powder in a size range -100 +10 microns.n

599232

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