Processing Machinery
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LDPE Foam
Fenómeno del problema
LDPE foam products have uneven cells
Análisis de la causa
Improper dispersion of the foaming agent and temperature control result in cells of different sizes; when troubleshooting on site, verify item by item according to this mechanism, and 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
Disperse the foaming agent uniformly; optimize the temperature curve; test cell density; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate the effective measure
Conclusión clave
Foaming quality relies on dispersion and temperature control; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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