Processing Machinery
5 görüntüleme
Low density polyethylene extruder screw design mismatch
Sorun Belirtisi
Uneven product plasticization, low output or high energy consumption; the screw does not match raw material characteristics.
Screw design directly affects plasticizing quality, output, and energy consumption.
Neden Analizi
(1) Screw compression ratio does not match the density and melting characteristics of low density polyethylene
(2) Insufficient screw L/D ratio, inadequate plasticizing section length
(3) Improper design of the transition section between screw tip and die head
(4) Screw mixing elements not suitable for this material
(5) Improper screw flight depth design
Çözüm
(1) Select a screw compression ratio suitable for low density polyethylene, generally 2.5-4.0
(2) Screw L/D ratio at least 25:1, ensure full plasticization
(3) Optimize the transition section between screw tip and die head, eliminate stagnation zones
(4) Select appropriate mixing elements according to material characteristics (pins, barriers, etc.)
(5) Ask professional screw designers to optimize flight parameters according to material characteristics
Temel Çıkarım
Screw design needs to match material characteristics and product requirements; custom dedicated screws when necessary.
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!