Method for the plasmic arc-welding of metals

摘要

PCT No. PCT/RU96/00188 Sec. 371 Date Jan. 11, 1999 Sec. 102(e) Date Jan. 11, 1999 PCT Filed Jul. 11, 1996 PCT Pub. No. WO98/02270 PCT Pub. Date Jan. 22, 1998In a method for the plasmic welding of metals with a straight-polarity direct electric arc used as a plasma-producing medium is water vapor generated directly in the welding torch by virtue of heat energy evolved by the pilot arc on the nozzle-anode, and the resultant plasma jet is controlled by varying the pilot arc current.