Parallel twin-screw and barrel used in extruder
Specifications
PX-45/2~150/2
Lenght/Diameter Ratio:L/D=18~25
The compression ratio of the screw can be designed according to different raw materials and products.
Hardness hardness:HV800-1000
Nitrided Case Depth:0.45mm~0.7mm
Alloy Hardness:HRC 50-65
Alloy Depth:0.8mm~2.0mm
The bimetallic barrel for single screw is a kind of barrel moulding 2-3mm thick alloy coat on the barrel inner wall which has excellent corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to the common nitrided cylinder. Bimetal has more obvious advantages when processing special plastics to enhance the abrasion life, such as engineering plastic, fluorine plastics, PPO and etc.
The company product's single/twin screw, uses special alloy powders being sprayed and welded on the screw's ridge, and uses different alloys and welding methods for the screw of different functions.
Materials:
Quality 38CrMoAlA
Quality power metallurgy raw materials
APPLICATION
A Commonly used for adding acid plastic with GF less than 30%
B For transparent material and color mixing material
TECHNICAL PARAMETER
A Using 38CrMoAlA high quality alloy structural steel, the top spray-welded nickel based alloy powder. Alloy thickness1.5mm. Hardness HRC 53-56
B 42CrMo alloy structural steel sprayed with nickel-base alloy powder.Alloy thickness1.5mm,Chrome plating thickness 0.03-0.05mm.
Specifications
Details:
Technical Index:
Depth of Nitrated Layer:0.5~0.8mm
Hardness of nitration: 950~1100Hv
Fragility of nitration: Less than grade 1
Surface Hardness of Nitrated Cr coating layer: 950Hv
Hardness of Bimetallic Layer: HRC55~72
Thickness of Cr-coating Layer: 0.03~0.08mm
Depth of Bimetallic Layer:>2mm
Material :quality alloy steels
1.38CRMOALA
2.SKD61
3.stainless steel
4. Bimetallic
Supply Capacity:
Production Capacity: 1500 sets/month
Packing: Fumigation wooden case
Delivery Date: 30~40 days
Screw Barrel Information:
Super-hard plastic injection machine screw and barrel
Choose a different screw screw head, barrel can choose the appropriate nozzle.
Injection volume (g) Screw Diameter X Length (mm) barrel diameter X length (mm)
