Method and apparatus for generating an ultra low current plasma arc
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United States of America Patent
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Jul 25, 1989
Grant Date -
N/A
app pub date -
Sep 11, 1987
filing date -
Sep 22, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for generating a plasma arc used in arc welding, arc transformation hardening, minute working, etc. A plasma gas used for generating a plasma arc includes xenon. A tungsten electrode having a diameter of 0.5 millimeters or less is used. Thus, an extremely low plasma arc current of 0.1 amperes or less can be produced in a stabilized manner.
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