Thermal spray technology is the use of heat to melt the coating material is heated or semi-molten state, and has been a constant speed through the spray deposition method to the substrate surface pretreatment of forming a coating, given the purpose of the substrate surface with special functions.
The heat source can be divided into combustion and electric heating method based on the use of thermal spray technology.
Combustion method: the use of oxygen – acetylene flame high temperature;
Electrical heating: between the two electrodes to produce strong and lasting arc discharge, resulting in high temperatures.
Regardless of the source, the principle is the use of high temperatures to melt it produces coating materials for spraying.
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