BLOOM(suzhou) Materials Co.,Ltd
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Plastic Machine Twin Screw Extruder Screw Segment Screw Element
1 . Description
Screw element type for each function: Feeding, Melting, Mixing, Venting, Pressurization
Screw Configuration
means a structure composed of different combinations to achieve the desired performance,such as disperse, shear effect, solving the requirements of mixed materials as well as the production stability.
Depending on the nature of work being carried out,there are Intake Zone,Conveying Zone,Melting Zone, Natural Venting Zone,Mixing Zone,Vacuum Venting Zone and Metering Zone.
Different screw elements own different features in different extrusion process,we should choose and design the right screw elements based on different extrusion status in order to optimize the overall comprehensive performance in the extrusion process.
The cross-sectional area is changed by adjusting the flight lead and thread depth, effectively eliminating sudden cross-sectional deformation and impeding resin pooling and extrusion fluctuations. Our (Barrier Mixer) with its high rolling and chaos effects can be mounted on the barrier outlet and screw tip to further enhance kneading and output rate.
2 . Technical Parameter
| Base Material | 1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JISSKD-11) ; |
| Bimetallic Alloy Materials | 1)Fe-based alloy2)Ni-based alloy/Deloroalloy |
| Double-alloylevel | Level A - containing Tungsten of40% |
| Surface Treatment | Heat Treatment |
3 . Comparsion of the output (LDPE)
Pressure is generated if resin passes over the barrier, forcing any air in the melted resin back to the feed side and effectively preventing the intrusion of air bubbles on the sub flight side. This is highly effective with resins that generate bubbles such as PS, PA, PET and EVOH.
4 . Material & Processes of screw barrel for plastic extruder
Alloy-steel of High-quality
1)38CrMoAlA
2)42CrMo
3)9Cr18MoV
4)CW6Mo5Cr4V2
5)Quality Duplex Stainless Steels
6)GH 113
7)Quality Powder Metallurgy Raw Materials
8)Cold/Thermal Spray Hard Metal process
9)Advanced nitriding Process
10)Corrosion & Abrasion Resistance Bimetal Spraying Process
5 . As per customer's demand,we can also supply below:
PVC/PE Film Blowing Screw;
Blow Molding Screw;
PS/PE/PP/ABS Sheet Extrusion Screw;
PE Aluminum Plate;
PPR Pipe Screw;
EVA Extrusion Screw;
HDPE High efficiency Screw;
PET Straps Screw;
XPS/EPE Foamed Screw;
Granulation Screw,Vented single screw etc.