The ventilation pipe is affirmed that its role is to enable the air in the two places to circulate and play a role in ventilation. Today's article content mainly shares the reasons why the surface of the ventilators and the inner wall are rough.
The reason why the appearance of the ventilation pipe will be wrinkled may be that the temperature around the mold is uneven and you need to check the heating ring; you need to increase the cooling water or reduce the temperature of the cooling water; the traction is too slow, the demand is accelerated. The modular temperature is too low, and the demand is increased by the core mold; the body temperature is too low, the demand is increased to increase the body temperature; the traction speed is too fast, and the demand is slow.
The reason for the rough inner wall of the ventilation pipe is that the core mold temperature is too low. It needs to increase the temperature of the core mold or increase the processing auxiliary agent. The temperature of the barrel is too low and the demand is increased; the screw temperature is too high to strengthen the screw cooling.
