Plasma spraying device and plasma spraying method

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of controlling the shape of a plasma jet. A plasma spraying apparatus according to one aspect of the present disclosure uses a supply unit that carries powder of a thermal spray material by a first gas and injects it through an opening at a tip portion, and the injected first gas. A plasma generating unit that generates plasma having a common shaft core with the supply unit, and a gas flow path that supplies a second gas that forms a swirling flow with the central axis of the supply unit as the swirling axis in the plasma generation space. The plasma generation space is provided with a magnetic field generating unit that generates a magnetic field having a desired distribution with respect to the central axis of the supply unit. [Selection diagram] Fig. 1