Processing Machinery
8 görüntüleme
LDPE Shrinkage Out of Tolerance
Sorun Belirtisi
LDPE products have large and unstable dimensional deviation
Neden Analizi
LDPE shrinkage of 2-5% is the highest among polyolefins, and cooling time fluctuations are directly transmitted; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Çözüm
Lock cooling time; measure actual shrinkage to modify the mold; SPC for key dimensions; 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
Temel Çıkarım
LDPE dimension management takes cooling time as the main line; 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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