What is the cause of shrinkage of plastic products? How should this problem be solved?

Cause of improvement

Insufficient mold feeding

Insufficient amount of melt glue increases the melt gauge stroke

Injection pressure is too low to increase injection pressure

Insufficient pressure to increase pressure

The injection time is too short to extend the injection time

Shooting speed is too slow to increase the rate of fire

Gate asymmetry to adjust gate size or position

The nozzle is blocked and cleared

High material temperature reduces material temperature

Improper mold temperature adjustment of proper temperature

Cooling time is not enough to extend cooling time

Poor exhaust: vent hole in the shrinkage

The tube is large enough to replace the smaller gauge tube

Screw slip ring wear and repair

Uneven thickness of finished product increases injection pressure

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