| 摘要 |
A plasma torch incorporating an arc forming chamber in which a cathode cooperates with an anode to form a plasma arc. A splitter is connected to the arc forming chamber and comprises a plurality of splitting channels radiating outwardly from the longitudinal axis of the chamber and forming a core region in an intermediate region of and substantially surrounded by the channels. The channels join with a converging section extending inwardly toward the longitudinal axis of the arc forming chamber. A feedstock input passage passes through the core region, opening co-axially with the longitudinal axis of the chamber, in or about the region of coalescence of the plasma stream exiting the splitting channels and the converging section. Feedstock material, such as powder, is fed through the feed passage into the coalesced plasma stream in an axial direction and in the direction of travel of the stream.
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