Composite metallizing wire and method of using

Coating processes – Spray coating utilizing flame or plasma heat – Continuous feed solid coating material

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427447, 427450, 427451, 219 7616, 205109, 205149, B05D 108, B05D 110

Patent

active

055144225

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.

REFERENCES:
patent: 3929596 (1975-12-01), Sasame et al.
patent: 4699848 (1987-10-01), Maybon
patent: 5266181 (1993-11-01), Matsumura et al.
R. C. Cobb, et al, "Hard Surface Coatings by Electric Arc Spraying", Welding and Metal Fabrication, Jul. 1988, pp. 226-231.

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