Excessive external dimensions of plastic pipes are a problem that occurs when using plastic pipe production lines. The countermeasure is to adjust the degree of vacuum. This method can change the external dimensions of pipes. Adjusting the traction speed can also play a role in changing the size of the outer circle. Manufacturers can also modify the inner hole size of the sizing sleeve,
Improper operation of plastic pipe production equipment can also easily cause the problem of excessive roundness of the pipe. Plastic pipe production line manufacturers can adjust the angle of the nozzle of the vacuum setting machine and the spray box, so that the pipe can be cooled more uniformly. In production, pay attention to check the vacuum setting machine, the water level inside the spray box and the pressure of the water pressure gauge, which can make the spray volume larger and more powerful. Regularly check the hydrological conditions of the vacuum setting machine and the spray water tank, and configure a chilled water system or increase the spray cooling tank when the temperature is higher than 35 ° C. In addition, the manufacturer can also inspect the waterway and clean the filter regularly; adjust the production process; check and correct the roundness of the inner hole of the sizing sleeve; adjust the pipe guide clamping device to correct the ovality of the pipe.