FIELD: reinforcement bars production.
SUBSTANCE: invention relates to production of multilayer large-diameter pipe with tubular assembly made from outer pipe that forms protective layer and inner pipe that forms coating layer. Carry out the inner pipe in the outer pipe, enter a clamping unit with a roller, with a roller, clamping force directed toward the inner surface of the inner pipe is applied to the roller, and carry out the rotation of the pressure unit. Pressure unit when rolling the roller is supported on the inner surface of the inner pipe by means of a support unit with a support roller. Pressure unit is simultaneously moved in axial direction relative to tubular assembly.
EFFECT: broader technological capabilities.
16 cl, 5 dwg
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