The solution to shrinkage of plastic hook products

The solution to shrinkage of plastic hook products:

1. Increase injection pressure

2. Adjust the mold temperature

A. When the mold temperature is high, the surface is prone to water lock.

B. When the mold temperature is low, vacuum bubbles are prone to occur inside the plastic parts.

    Thick molded parts can be dealt with by increasing the mold temperature and waiting for the gate to be completely sealed and solidified.

    3. Increase the holding time

    4. Lower the resin temperature and lower the firing rate.

    5. Increase the injection margin

    6. Confirm whether there is a backflow of resin.

    7. Check the mold structure, so that the cooling speed of each part of the product tends to be consistent.

    8. Review injection compression

    9. Make design changes to the product.

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