FIELD: mechanical engineering, civil engineering and other industries. SUBSTANCE: plasma-arc welding of metals is performed by direct or indirect constricted arc. Vapors of liquid are used as plasma generating medium. Liquid contains water with addition of organic solvent in form of oxygen containing hydrocarbons. Alcohol can be used as organic solvent. Vapors are formed directly in plasma torch. EFFECT: enlarged operating capabilities. 4 cl, 2 dwg
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