Extrusion & Post
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PCABS Stress Cracking
Fenómeno do problema
PC/ABS stress cracking, internal stress and chemical media, annealing treatment.
Análise das causas
PC/ABS stress cracking; high internal stress; contact with chemical media; assembly stress; annealing treatment at 80°C for 2 hours; environmental evaluation.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
①Internal stress management; ②annealing treatment; ③chemical media evaluation; ④assembly optimization; ⑤environmental control.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
Internal stress and media are the mechanism of PCABS stress cracking; annealing is an effective countermeasure; evaluation ensures application safety.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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