Composite metallizing wire and method of using
AssigneeFord Motor Company
InventorRobert C. McCune
Life of this patent
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Abstract
A composite metallizing wire useful in thermal flame spraying, having a conductive metallic solid core wire strand and a coating consisting of solid lubricant particles (i.e., graphite, BN, Teflon) and wear-resistant particles (i.e., SiC, TiC, Cr.sub.3 C.sub.2) homogeneously suspended in a conductive metal (i.e., Ni, Fe, Cr, Mo, Ti) complementary to said solid core wire strand. The wire is used to produce a metal matrix composite coating, comprising providing a thermalizing through-flow chamber with an exit nozzle, the chamber having a gas flow-through of at least 100 ms.sup.-1, establishing a flame in said chamber, and feeding a composite coated wire into said flame to be melted and projected by the gas flow to a target, the wire being constructed as above.
Claims7
A method of thermal spraying to produce a metal matrix composite coating, comprising:
- (a) providing a thermalizing through-flow chamber with an exit nozzle, said chamber having a gas flow-through of at least 100 ms.sup.-1 ;
- (b) establishing a melting zone in said chamber;
- and
- (c) feeding a composite coated wire into said melting zone to be melted and projected by said gas flow to a target, said wire being comprised of a conductive metal solid core mandrel and a metal matrix composite coating on said mandrel, said composite coating on said mandrel consisting of solid lubricant particles and wear-resistant particles embedded in a coating of said conductive metal on said mandrel metal to melt therewith in said zone.
Dependencies are inferred from the claim text.