Material Analysis
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Low detection rate of PCTG stress cracking
Problem Phenomenon
Stress cracking is highly hidden, undetectable, but cracks during use.
Cause Analysis
Conventional sampling inspection is difficult to find low-probability internal stress cracking risks.
Solution
Adopt 100% solvent immersion sampling; increase stress testing frequency.
Key Takeaway
PCTG hidden stress cracking is a large-scale recall risk.
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