Blow Molding
8 görüntüleme
LDPE vs HDPE Comparison
Sorun Belirtisi
HDPE products are too hard with poor hand feel, but after switching to LDPE the rigidity is insufficient, with repeated switching back and forth
Neden Analizi
LDPE is soft and tough but has low rigidity and strength; HDPE is stiff with high strength but feels hard; density is the performance watershed; blending can balance the two; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Çözüm
① Select LDPE for flexibility requirements and HDPE for rigidity requirements; ② use LDPE/HDPE blending for balanced requirements; ③ density is the first parameter for selection
Temel Çıkarım
LDPE and HDPE divide work by flexibility and rigidity; blending is the middle route, and density determines the performance coordinates; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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