Injection molding universal screw

Specification: Φ20-Φ180mm
Length-diameter ratio: L/D=20~24
Applicable materials: PE, PVC, PU, TPU, TPE, PA, PP, ABS, etc

Advantages:

1. It can process various materials
2. Low melt temperature
3. Less back pressure required
4. Improve color uniformity and change color quickly
5. Low breakage rate of glass fiber

Technical indicators:

Material selection quality: 38CrMOAlA
Tempered hardness: HB 260~290
Nitriding hardness: HV950 ~ 1000
Nitriding depth: 0.45 ~ 0.7mm
Nitride brittleness: ≤ one level
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Surface chrome plating: hardness ≥900HV thickness 0.02 ~ 0.04mm
Double alloy layer depth and hardness: depth greater than 2mm, hardness 60-78 HRC

The company undertakes the business of screw barrels with a length to diameter ratio of 1:20-1:24 for sizes ranging from 20 to 110

1) Single piece processing
2) Supporting production
3) Upgrade the existing equipment

The innovative screw design approximates the mass balance of the entire screw, compensating for the conversion between the bulk density of the raw material and the density of the resin melt, thereby controlling the shear rate and shear stress throughout the melting process to obtain a very uniform melt quality while shortening the molding cycle by more than 10%.