Injection Molding
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PET recycled '2079851475616104452
Fenómeno do problema
Large fluctuations in impact strength of rPET injection molded parts
Análise das causas
Recycled material has large batch-to-batch differences in IV value and varying degrees of degradation, causing mechanical properties to fluctuate accordingly; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Test incoming material IV value and use in batches; adjust blending ratio according to IV value; toughening modification compensation; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
rPET '2079851475616104452 manages performance by IV value grading; 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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