Electric arc spray coating with cored wire

Coating processes – Spray coating utilizing flame or plasma heat

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Details

427449, 427451, 427453, 427456, B05P 108

Patent

active

052944620

ABSTRACT:
A method is disclosed for the electric arc spraying of powder-filled cored wires to apply hard, wear-resistant coatings to various substrates. Inert gas, preferably nitrogen, is supplied to the arc spray gun such that the mass ratio of the wire feed rate to the gas feed rate is preferably between about 0.07 and about 0.11. Operation in this range yields an optimum combination of coating hardness properties and arc spray gun operating characteristics.

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Drzeniek et al.; "Introduction of Cored Wires to Arc Spraying"; Proceedings, 10th Int'l. Thermal Spray, Conf.; May 2-6, 1983; Essen, W. Germany.
Steffens et al.; "Arc Spraying of Steel and Cored Wires"; Adv. in Thermal Spray. Proc. 11th Int'l. Conf.; Sep. 8-12, 1986; Montreal.
Pokhmurskii, V. I.; "Fundamentals of the Formation of Protective & Repair Coatings by Electric Arc Spraying of Powder Wires".
Drzeniek et al.; "Cored Tube Wires For Arc and Flame Spraying"; Proc. Nat.'l Thermal Spray Conf.; Sep. 14-17, 1987.
Cobb et al.; "Hard Surface Coatings by Electric Arc Spraying"; Welding & Metal Fabrication; vol. 56; (5); p. 226, Jul. 1988.
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