Material Analysis
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Low detection rate of PCTG stress cracking
Fenómeno del problema
Stress cracking is highly hidden, undetectable, but cracks during use.
Análisis de la causa
Conventional sampling inspection is difficult to find low-probability internal stress cracking risks.
Solución
Adopt 100% solvent immersion sampling; increase stress testing frequency.
Conclusión clave
PCTG hidden stress cracking is a large-scale recall risk.
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