Abstract: The present invention relates to a plasma torch including: a tube including: a first diameter part provided with a hollow channel; and a second diameter part provided at a predetermined position on the outer circumferential surface of the first diameter part; a body including: a housing part receiving the tube therein; and a plurality of first and second discharge holes formed at predetermined positions in longitudinal directions of the body; an insulator including a plurality of first discharge flow lines formed at predetermined positions vertically located from the body; an amplification tube including a space part communicating with the second discharge holes; a housing including a plurality of second discharge flow lines formed at predetermined positions of an inner circumferential surface of the housing; an inner cap combined with an outer circumferential surface of the housing; and an insulation cap engaged with an outer circumferential surface of the inner cap.

Abstract: Disclosed is a water-cooled plasma torch. The water-cooled plasma torch of thed present invention includes a first body, a second body, an electrode, a cooling tube, an insulator, a third body, a pilot terminal, a nozzle, an inner cap, and an outer cap. The water-cooled plasma torch can increase the speed of a high-temperature plasma flame using a simple structure, can increase the lifespan of a nozzle and an electrode in contribution to improved cooling efficiency, and can apply high voltage. The water-cooled plasma torch also can increase the lifespan of a nozzle by minimizing damage to the nozzle due to a plasma flame.

Abstract: The present invention relates to a plasma torch including: a tube including: a first diameter part provided with a hollow channel; and a second diameter part provided at a predetermined position on the outer circumferential surface of the first diameter part; a body including: a housing part receiving the tube therein; and a plurality of first and second discharge holes formed at predetermined positions in longitudinal directions of the body; an insulator including a plurality of first discharge flow lines formed at predetermined positions vertically located from the body; an amplification tube including a space part communicating with the second discharge holes; a housing including a plurality of second discharge flow lines formed at predetermined positions of an inner circumferential surface of the housing; an inner cap combined with an outer circumferential surface of the housing; and an insulation cap engaged with an outer circumferential surface of the inner cap.