FIELD: chemical industry; other industries; devices used for manufacture of plastic pipes by centrifugal method.
SUBSTANCE: invention is pertaining to manufacture of polymeric plastic pipes by centrifugal method. Die block used for manufacture by centrifugal method of plastic pipe with length of more than 3 m and diameter - more than 1 m contains cylindrical body and two running rings ensuring rotation of die block on appropriate supports round its axis and disposed on ends of the die block. At least one of running rings has circumferential surface at least with the first section passing slantwise to axial direction of the die block bevel way exceeding 0° less than 90°. Running rings are placed in those parts of the die block, where there is no molding of the pipe or in those parts of the die block, which adjoins end parts of manufactured pipe, which will be cut-off after its manufacture. Invention ensures manufacture of the pipe with homogeneous properties along the whole technological length of the pipe.
EFFECT: invention ensures manufacture of the pipe with homogeneous properties along the whole technological length of the pipe.
9 cl, 3 dwg
