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Twin Screw Compounding Extruder Screw Element In Screw Barrel

BLOOM(suzhou) Materials Co.,Ltd

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Contact name:Kara Liu

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Twin Screw Compounding Extruder Screw Element In Screw Barrel

Country/Region china
City & Province jiangsu
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Product Details

Extruder Part Twin Screw Compounding Extruder Screw Element In Screw Barrel

 

1 . Description

We are the manufacturer of supplier of screw and barrel in china,including designing,manufacturing and sales for these products,we can make any specification of extruder screw barrel and injection molding screw barrel for Engle,Nigrobossi,KMD,NPM,BOY,Haitian,Demag,HUSKY, Nippon Steel, Toshiba, Nissei,Mitsubishi and etc. We also can supply all types of screw and barrel according to your different requirements.

 
Screw diameter:Φ15mm-Φ360mmL/D=15-56
Length of screw and barrel/cylinder:8000mm

According to different material and plastic products to design different screw structure ,compress rate and L/D.
According to different material and plastic products to design different Barrel with exhaust system and IKV force load system.
 

 

2 . Technical Parameter

Base Material1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JISSKD-11) ;
3)4Cr5MoSiV1(JIS SKD-61) ;4)42CrMo(AISI4140)
Bimetallic Alloy Materials1)Fe-based alloy2)Ni-based alloy/Deloroalloy
3)Co-based alloy4)NiCo-based alloy
5)Tungsten carbide/Wolframcarbide
Double-alloylevelLevel 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

 

The screw elements is one of the most important part of the twin screw extruder. Its quality will affect the finished plastic
granules quality directly. Part of screw elements are used for feeding and conveying plastic material. and the kneading block will achieve the function of plasticization, mixing and dispersion.
For different plastic material, the screw elements combination can be adjusted to meet different demands of mixing, shearing, dispersion and dying effect.

 
Our factory has special machining equipment to make various kinds of high precision, wear-resistance and corrossion-resistance screw elements, such as machining centers, thread grinders, special CNC sawing machines, grinders and other equipment.

 

 

 

3 . 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

 

 

4 . Technology Specification of screw barrel for plastic extruder

1)Hardness After Hardening & Tempering:HB240-290

2)Hardness of nitride layer:HV850-1000
3)Nitrided Case Depth:0.45-0.7mm
4)Nitrided Brittleness:Less Than Grade 2
5)Surface Roughness:Ra0.4
6)Screw Straihgtness:0.015mm
7)Surface Chromium-Plating's Hardness After Nitriding:≥900HB
8)Chrominm-plating Depth:0.05-0.10mm
9)Alloy Hardness:HRC50-65
10)Alloy Depth:0.8-2.0mm

 

 

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.

 

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