Injection Molding
11 조회수
Stress Cracking of PCTG Injection Molded Products
문제 현상
Cracks appear in PCTG products during use or when contacting chemicals.
원인 분석
Excessively fast molding cooling produces internal stress, the product design has stress concentration, and PCTG is sensitive to stress cracking by certain solvents.
해결 방법
Increase the mold temperature to 30-50°C; avoid sharp corners and abrupt wall thickness changes in product design; anneal at 60-70°C/2-4h after molding.
핵심 요약
PCTG stress management is the guarantee of long-term use reliability.
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