Plasma spray welding and thermal spray comparison

       Compared with the plasma sprayed layer, the major defect is that the coating cannot have a very high fusion effect with the substrate, if the impact force of some parts is relatively high under the application, or the load is relatively high. In large cases, it is very easy for the coating to fall off. And this kind of parts can have good practical results if plasma spray welding is used.



Today, plasma thermal spray welding is mainly used in corrosion-resistant and wear-resistant layers. Although the plasma spray coating can also be used as a corrosion-resistant coating, because there are gaps, it is not suitable if the temperature is relatively high or the etching ability is relatively strong; but the relative density of the spray coating layer is very high. Large, it is very suitable as a corrosion-resistant layer. In the case of using plasma spray welding as the wear-resistant layer, the actual effect is very ideal, and it can still be used normally when the load conditions such as erosion force and impact force are relatively large. Especially in the case of serious corrosion and damage, the application of plasma spray welding layer shows its advantages, and the actual effect is more significant.



Therefore, the advantages of plasma spray welding and thermal spraying are still very sufficient, and its application will undoubtedly be further promoted in the future.