Injection Molding
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Stress Cracking of LDPE Injection Molded Products
Fenómeno do problema
LDPE products crack after assembly.
Análise das causas
Local interference stress is large; LDPE strength is low, and long-term stress causes creep cracking.
Solução
①Reduce assembly interference; ②structural fillets; ③switch to high-strength grades if necessary; ④verify long-term load.
Conclusão principal
Soft materials also fear long-term overstress.
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