Modified polystyrene (PS) annotates injection die and presses drain pipe

The utility model discloses a modified polystyrene (PS) annotates injection die and presses drain pipe, connect gradually the C mould pipe between the two including A mould pipe, B mould pipe and a plurality of festival, the one end of each mould pipe is the socket pipe, and the other end is socket tube, the socket tube and inner chamber formation locating surface of B mould pipe, the socket tube and inner chamber formation locating surface of C mould pipe, the socket wall thickness of A mould pipe and C mould pipe is centesimal and 3mm's of its internal diameter thickening layer respectively, and each mould pipe all adopts modified polystyrene to press technology to make through annotating injection die for the material. The beneficial effects of the utility model are that: the socket wall thickness of A mould pipe and C mould pipe is after the thickening, and the hot melt is connected more firmly, is difficult to take place the pine and takes off phenomenon and deformation. 本实用新型公开了种改性聚苯乙烯（PS）注射模压排水管，包括A模管、