Injection Molding
13 مشاهدة
Cracking of PBT Injection-Molded Parts During Assembly
ظاهرة المشكلة
PBT products crack during assembly (press-fitting, screw tightening, etc.).
تحليل الأسباب
The internal stress of the product is high, and the assembly stress superimposed exceeds the strength limit; the screw holes have no chamfer, causing stress concentration; the interference is too large.
الحل
Fully anneal the product to reduce internal stress; optimize the assembly design (chamfer, guide section, etc.); control the assembly stress.
الخلاصة الأساسية
PBT assembly cracking is an extension of stress management.
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