FIELD: pipes inner surface lining. SUBSTANCE: after application of polymeric layer shaping of its surface is exercised by pulling through nonuniformly heated calibrating tool of cylindrical form with conical butt parts. Front conical part of tool is heated more, than its rear part. Heating of front conical part provides partial melting and taking of part of polymeric material layer away. Heating of tool cylindrical part ensures transformation of polymer into viscous-flowing state and polymeric coating surface polishing. Heating of tool rear conical part ensures transformation of polymeric coating polished surface into glass-shaped state. EFFECT: increased productivity of metal pipes inner lining. 1 dwg
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