Injection Molding
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LLDPE injection molded bucket
Fenómeno del problema
LLDPE injection molded buckets crack in low-temperature drop
Análisis de la causa
Low-temperature toughness boundary; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solución
Select high-impact grades; wall thickness design; low-temperature test; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
Select low-temperature buckets by impact resistance; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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