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What are the causes of injection molding defects?

Update:01-06-2022
Summary:

Causes of defects in injection mold production of injec […]

Causes of defects in injection mold production of injection parts
1. The rubber compound is not filled enough
2. Insufficient progress in the injection molding process
3. Plastic shortages
4. The screw leaves no screw spacer at the end of the stroke
5. Runtime variation
6. Short shot temperature is too low
7. Insufficient injection pressure
8. The nozzle is blocked
9. Injection time is too short
10. The capacity of the injection molding machine is too small
11. Mold temperature is too low

Remedies
1. Increase injection speed
2. Check the plastic in the hopper
3. Check if the operation is stable
4. Increase the sol temperature
5. Check or replace the return stop