FIELD: process engineering.
SUBSTANCE: invention relates to welding tool for arc-welding by tungsten electrode in inert gas, or for plasma welding, or for laser welding. Proposed tool comprises appliances to feed inert gas into welding tool head. Welding head is surround by skirt made from semi-rigid refractory material. Said skirt comprises front section shaped so that envelope welding seam with clearance over a certain length and appliances to allow detachable joint of said skirt on welding head. Said skirt is made by pressing or hot forming of composite material based on ceramic fibers and elastomer that sustains high temperatures. Skirt lower edge is located nearby welded parts, its shape and clearance mating those of jointed parts.
EFFECT: reliable protection of welded seam in automatic welding.
7 cl, 6 dwg
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