Electric Arc Spray
Available from A&A Company, Inc.
This equipment is an innovation to the Metallizing Field. A modified basic Solid State 600 Amp.Arc Welder is combined with a specially designed Spray Gun. Two wires are fed simultaneously through the gun at an angle so as to meet as they exit from the gun. The wires are insulated from each other but at the point where the wires exit from the gun, one wire is charged plus and the other minus, causing them to throw a molten arc between each other. Just behind this point we inject high velocity air or inert gas which atomizes the molten arc and propels the atomized particles onto the Substrate. The temperature of the arc is controllable to a maximum of approximately 10,000°F. With this equipment, we can spray any type of metals which have melting points below 10,000°F.
Depending on the material being applied and the equipment being used, A&A Company, Inc. can apply coatings with either mechanical bonds up to 5000 P-S-I- or Semi-Metallurgical bonds. With all processes, the Substrate is not heated above (250°F), therefore no distortion takes place.