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Abnormal
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reason
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process
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| Brittleness of molded products |
Insufficient drying
Mold temperature is too low
Injection pressure and pressure holding are excessive, occurrence of inside stresses caused by thickness deviation and defective mold release
Notch effective
Heat decomposition
Contamination by foreign material |
Maintenance of drying machine and hopper
Select suitable conditions
Eliminate thickness deviation
Eliminate sharp corners, modify position of gate
Lower the cylinder temperature
Eliminate detention
Cleaning of hopper and cylinder |
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