Deposition techniques
Atmospheric plasma spraying
Spraying molten powdered materials onto the surface on another material using plasma arcs.
Atmospheric Plasma spraying employs a technique essentially similar to PTA welding. It differs in that the flame comprises an electrically excited plasma of high velocity and temperature (≈15,000°K). This permits a denser coating (95-98%). Deposition rates are from 2–8 kg/hour, and surfacing thickness from 0.1–2.5 mm.
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