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) ; 3)4Cr5MoSiV1(JIS SKD-61) ;4)42CrMo(AISI4140)
Bimetallic Alloy Materials	1)Fe-based alloy2)Ni-based alloy/Deloroalloy 3)Co-based alloy4)NiCo-based alloy 5)Tungsten carbide/Wolframcarbide
Double-alloylevel	Level A - containing Tungsten of40% Level B - containing tungsten of 25% Level C - containing tungsten of15%
Surface Treatment	Heat Treatment High FrequencyTreatment Nitriding treatment(120Hours): Depth of Nitrided Layer: 0.5-0.8mm Hardness of Nitrided Layer: 900-1020Hv(HRC56°-65°) HardChrome Plating treatment: Thickness of Hard Chrome Plating Layer:0.05-0.10mm Hardness ofHard Chrome Plating Layer: ≥950HV Nickel alloyplating.treatment: Bimetallic barrel / Cylinder: Centrifugal Casting(Inlay Alloy) BimetallicScrew: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° Spraying corrosion wear-resisting dual metallayers

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.

Bloom(Suzhou) Materials Co., Ltd ，which located in the beautiful city of Zhangjiagang , Suzhou,China. 
Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on the alloy materials. Spot welding accessories and twin extruder spare parts. 

With independent research and development team, Bloom focuses on technological innovation. It has provided super wear resistance, corrosion resistance, high temperature resistant core parts for many twin screw extruder users both at home and abroad and blending modification of enterprises. With continuous pursuit of technological innovation, we committed to providing customers with high quality products and services. In the global market, Our products are widely used in all fields such as plastics, miners, energy, aviation and etc. High-quality products can be developed according to customer needs combined with the actual working conditions. Whether it is high temperature, high corrosion conditions, or high torque, high strength mechanical needs, Bloom’s products can perform the task excellently. It can achieve excellent performance, stable quality, reasonable price, timely delivery, perfect after-sales.
We will advance with the times with the management idea of cooperation, win-win, integrity and open, to provide customers better products and more efficient service. Share a brilliant tomorrow with you!

Products Scope of Bloom Alloy

Nickel and iron base  Alloy(KCF alloy, Nickel alloy)

Spot Welding Accessories(Electrodes, Cap tips , Guide Pins and so on)
Twin Screw Extruder Spare Parts
Parallel Twin Screw Extruder Parts 
Conical Screw Extruder Parts

Other Precision Alloy Materials and Parts

Service  of Bloom

Alloy Material  Self Production

Non-Standard Product Reseach and Test

Precision Machinning

Spot Welding Parts offering

Twin Screw Extruder Spare Parts Supply

Logistics Service

After sales service

Advantages of Bloom 

Experienced Engineers in Alloy Businss
More then 20 years experience in alloy materials offering

High Quality Control System

Authorized Certificates

Guaranteed Delivery and Quality

More then 20+Countries customers trust.

Bloom is engaged in offering special and high quality performance alloy and parts to the whole world, Choose Bloom, Choose a sucessful business partener!