Multiple torch type plasma generation device and method of generating plasma using the same
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United States of America Patent
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Sep 7, 1993
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N/A
app pub date -
Nov 6, 1990
filing date -
Nov 7, 1989
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Expired
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Abstract
A plasma gas is injected from a vortex flow forming hole defined to an insulator in a tangential direction with respect to the circumference of the arc column of a torch to enable the axis of the arc column to be aligned with the axial of the torch and a vortex annular gas sheath is coaxially formed to thereby narrow down a plasma flame. Further, the torch comprises the above insulator and a casing which are connected in series each other.
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