Composite metallizing wire and method of using

Details Composite metallizing wire and method of using Composite metallizing wire and method of using

1995-08-14

1999-11-02

Speer, Timothy

Stock material or miscellaneous articles

Composite

Of metal

428323, 428325, 428472, 428698, 428699, B32B 1500

Patent

active

059767049

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.
A method of making such composite metallizing wire useful in thermal flame spraying, comprising submersing a solid core wire mandrel of conductive metal in a plating bath to act as a cathode, the bath containing conductive metal salt and an electrolyte having a salt with a depositable metal and a dispersant of wear-resistant particles (i.e., in an amount of from 20-150 grams/liter) and solid lubricant particles (i.e., in an amount of from 10-200 grams/liter), and energizing the electrolyte to codeposit metal from said electrolyte along with wear-resistant particles and solid lubricant particles onto said wire mandrel.
A method of thermal spraying 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: 5194304 (1993-03-01), McCune
patent: 5358753 (1994-10-01), Rao

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