Injection Molding
11 조회수
Cracking of PBT Injection-Molded Parts During Assembly
문제 현상
PBT products crack during assembly (press-fitting, screw tightening, etc.).
원인 분석
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.
해결 방법
Fully anneal the product to reduce internal stress; optimize the assembly design (chamfer, guide section, etc.); control the assembly stress.
핵심 요약
PBT assembly cracking is an extension of stress management.
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