Injection Molding
12 görüntüleme
High Internal Stress in PC Injection-Molded Parts
Sorun Belirtisi
The internal stress level of PC products is high, and the polarized light stress test fails.
Neden Analizi
Fast cooling and low mold temperature freeze the molecular chain orientation, and the stress release is insufficient.
Çözüm
Increase the mold temperature to 90-120°C; extend the cooling time; anneal at 120°C/1-2h.
Temel Çıkarım
PC internal stress is the precursor of performance deterioration and cracking.
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