Molds & Tooling
5 조회수
Uneven or non-compliant crystallinity of PA products
문제 현상
The crystallinity of PA products is uneven or does not meet the requirements, and the mechanical properties and dimensional stability are affected
원인 분석
（1）Improper mold temperature (deviating from the 60-90°C recommended range) causes large crystallinity fluctuation
（2）The cooling rate is too fast, the crystallinity is low, and the performance is insufficient
（3）The cooling rate is too slow, the crystallinity is too high, and the toughness decreases
（4）The product wall thickness is uneven and the crystallinity of each part differs greatly
（5）Polyamide (general-purpose nylon) crystallizes quickly and requires precise mold temperature control
해결 방법
（1）Set the mold temperature according to performance requirements: high strength requires a high mold temperature (the higher value of 60-90°C) to promote crystallization
（2）High toughness requires a low mold temperature to suppress crystallization
（3）Ensure uniform mold temperature
（4）Thick-walled products need extended cooling to ensure crystallization is complete
（5）Stabilize the mold temperature to avoid fluctuation
핵심 요약
PA crystallization requires precise mold temperature control according to performance requirements
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!