Molds & Tooling
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PETG product stress test unqualified
Fenómeno do problema
In the PETG product stress cracking test (solvent immersion method), cracks appear and the stress exceeds the standard.
Análise das causas
The '2079851475616104453 causes large internal stress (low mold temperature, fast cooling), and improper product design produces stress concentration.
Solução
Increase the mold temperature to 40-60°C; extend cooling time; optimize product design; anneal after molding at 65°C/2-4h.
Conclusão principal
PETG stress management runs through the '2079851475616104453 and product design.
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