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Product defects caused by moisture content of homopolymer polypropylene raw material exceeding standard

Material Drying moisture contentdryingsilver streakbubblesmoisture-proof storage

Large weight fluctuation of homopolymer polypropylene injection products

Injection Molding weight fluctuationnon-return ringplasticizing stabilitytemperature controlmetering accuracy

Insufficient impact strength of homopolymer polypropylene injection products

Material Drying impact strengthinternal stressmolecular orientationmaterial degradationregrind control

Roundness out of tolerance of homopolymer polypropylene injection products

Injection Molding roundness out of toleranceanisotropic shrinkagecooling uniformitygate positionwall thickness uniformity

Processing difficulty caused by melt flow rate mismatch of homopolymer polypropylene raw material

Injection Molding melt flow rategrade selectionincoming material inspectionprocess adjustmentraw material mixing

Environmental stress cracking of homopolymer polypropylene injection products

Injection Molding environmental stress crackingresidual stressstress concentrationannealing treatmentchemical media

Stress whitening near the gate of homopolymer polypropylene injection products

Injection Molding stress whiteninggate shearmolecular orientationinjection speedgate size

Dimensions of homopolymer polypropylene injection products continue to change after demolding

Injection Molding post-shrinkagecrystallinitydemolding temperatureannealing treatmentdimensional stability

Crazing/microcracks on the surface of homopolymer polypropylene injection products

Injection Molding crazingmicrocracksinternal stressmolecular orientationdraft angle

Uneven color/color difference of homopolymer polypropylene injection products

Injection Molding color differencecolor masterbatch dispersiontemperature stabilityback pressurescrew mixing

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