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NCK Technology Co.,Ltd

The Reason Why The Mold Is Brittle During Injection Molding

The reason why the whole product is brittle when the mold is used to produce injection molded parts

1. The injection molding machine has insufficient injection pressure and pressure;

2. The back pressure is too small and the raw materials are not solid enough;

3. The back pressure is too large, and the heat of shearing and rubbing increases;

4. The rate of fire is too slow to crystallize sufficiently;

5. The mold temperature is too high, and the raw materials are over-fired, decomposed, and deteriorated;

6. The mold temperature is too low to be fully crystallized;

7. Insufficient time for injection and holding pressure;

8. The injection molding machine has a long downtime and the injection cycle is too long;

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