Extrusion & Post
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ABS stress cracking
Fenómeno del problema
ABS stress cracking, internal stress and chemical media, annealing treatment.
Análisis de la causa
ABS stress cracking; high internal stress; contact with chemical media; assembly stress; annealing treatment; environmental assessment; BASF Engineering Plastics Guide.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
①Internal stress management; ②annealing treatment; ③chemical media assessment; ④assembly optimization; ⑤environmental control.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Internal stress and media are the mechanism of ABS stress cracking; annealing is an effective countermeasure; assessment ensures application safety.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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