| 2003 №05 (13) | 2003 №05 (02) |
The Paton Welding Journal, 2003, #5, 2-5 pages
Application of active fluxes and active gases to increase efficiency of arc and plasma welding
B.E. Paton, M.M. Savitsky, V.S. Gvozdetsky, I.V. Krivtsun, A.M. Savitsky, Yu.E. Godlis, A.F. Lupan
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Considered are probable causes of increase in the penetration depth in plasma and arc welding by the MIG and TIG methods using activating fluxes. It is shown that deep penetration of metal is caused by contraction of the arc and increase in the concentration of thermal and mechanical effects of plasma on metal with a simultaneous decrease in its surface tension at the presence of elements that have a high surface activity and susceptibility to formation of negative or positive ions.
Keywords: plasma and arc welding in inert-gas atmosphere, activating fluxes, metal and tungsten electrodes, arc pressure, surface tension, penetration, mechanical properties, welded joint.
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