The reason why the plastic product produces the weld mark is because the first part of the molten material of the plastic product is cooled and solidified, the plastic product does not cause strip-like fusion marks in the confluence, and the plastic product cavity is caused by the air content of the plastic product and the volatile matter of the material being closed. A release agent remains in the interior.
To solve the defects of plastic products, the injection speed of plastic products can be increased, the temperature of the mold can be increased, the temperature of the barrel can be increased, the injection pressure can be increased, the gas escape of the plastic products can be increased, and the position of the gate of the plastic product can be changed.
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