The invention relates to an
assembly type plastic
pressure pipe, a production die, a production method as well as a plastic plate and a
pipe gallery. The
assembly type plastic
pressure pipe comprisesa plurality of
pipe pieces, all the
pipe pieces can be sequentially spliced to form a plastic
pressure pipe body, the two adjacent pipe pieces are subjected to hot-melt
welding, and
electric heating wires are arranged in the joints. According to the
assembly type plastic pressure pipe, the plurality of pipe pieces are subjected to hot-melt
welding to form the whole pipe, and compared with an existing
extrusion forming of the whole pipe, each pipe piece is independently machined and manufactured, so that manufacturing difficulty is low, equipment investment is small,
energy consumption is low,the cost is low, the rate of finished products is high, and efficiency is high; then the plurality of pipe pieces are subjected to hot-melt
welding so that one large-
caliber plastic pressure pipe canbe manufactured, and the problem that the large-
caliber plastic pressure pipe is difficult to manufacture by an existing
extrusion forming method is solved; and a lot of problems about whole pipe
extrusion forming of the large-
diameter pressure pipe are solved, and the characteristics of being uniform in wall thickness, good in coaxiality, high in
pressure resistance, high in ring stiffness and high in yield are achieved.