Plastic pipe production line in the production process will inevitably be some faults, such as: plastic pipe outer surface roughness is not smooth, to adjust the process temperature timely; tube wall thickness is not uniform, the mold thickness adjustment; grooves appear surface tube, check whether the inner tube is water, reducing the internal temperature of the mold; plastic pipe external surface grooves, adjusting sleeve water pressure, water balance; pipe internal jitter ring sleeve, adjust the water, the water evenly; no vacuum, check the vacuum pump inlet is blocked; the cutting length is not accurate, check the meter long wheel is pressed, some more the timely discovery, viewing and processing.

Plastic pipe production line produced plastic pipe also has common problems: first, shock resistance is bad, or even 10 shocks, all rupture. Two is the tensile strength and toughness is poor, often showed brittleness, elongation is low and easy to break. Three is softening temperature is low, easy to encounter thermal deformation, reducing the impact resistance of the pipe, tensile strength and toughness.

For plastic pipes, attention should be paid to selection of auxiliary materials, raw materials proportioning, production process and production equipment.