plasma spraying-尊龙凯时平台入口

plasma spraying involves the spraying of molten or heat-softened material onto a surface to provide a coating, using inert gases as plasma gas and carrier gas. in plasma spraying process, the material to be deposited — typically as a powder, sometimes as a liquid, suspension or wire — is introduced into the plasma jet, emanating from a plasma torch. in the jet, where the temperature is on the order of 20,000 k or more, the material is melted and propelled towards a substrate. there, the molten droplets flatten, rapidly solidify and form a deposit. typical plasma gases are argon, helium, nitrogen and hydrogen. single gas or mixtures can be used.