Plasma spraying is a process intended for a component's surface improvement by means of particles deposition. It includes surface strengthening, and adding rust-preventing, dielectric, fire safety and other properties to a component's surface.
A high power plasma torch designed in Centre for Advanced Coating Technologies (CACT), University of Toronto, for the purpose of thermal waste treatment is proposed to be used in a high-volume plasma spraying process. Modification of the existing plasma torch is required in order to accommodate feedstock material delivery into the plasma jet.
A series of experiments were conducted and results were evaluated in order to verify if the torch is suitable for plasma spraying. Results and modifications of the existing torch are presented.