Using active fluxes gases for increasing of arc and plasma welding

摘要

Considered are the probable causes of increase in the penetration depth in plasma and arc welding by the MIG or TIG method using activating fluxes. It is shown that deep penetration of metal is caused by constriction of the arc and increase in the concentration of thermal and mechanical effects exerted by the plasma on metal, as well as simultaneous decrease in its surface tension at the presence of elements characterised by a high surface activity and susceptibility to formation of negative or positive ions.