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PE Extrusion Screw Barrel, extruder screw barrel, bimetallic screw barrel, extrusion screw barrel
Specification:
Screw Diameter: Φ 15- Φ 300
L/D ratio: 15-46
Product classification:
Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc.
Technical Information
Base Materials:
1). 38CrMoAlA(JIS SACM645).
2). 42CrMo(AISI 4140).
3). 4Cr5MoSi V1 (JIS SKD-61).
4). 9Cr18MOV
5). HPT
Bimetallic alloy materials:
1). Fe-based alloy
2). Ni-based alloy/Deloro alloy
3). Co-based alloy
4). NiCo-based alloy
5). Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm: 3mm
Warranty and service: 1 year
Our advantages:
1). Excellent raw materials
2). Good customer service
3). Rapid delivery
4). Reasonable price
5). Production quickly
Experienced manufacture, we will be the best choice.
Main Base materials
 1.38CrMoAlA  (Nitriding Steel)
2.  SKD-61   (Special Tool Steel) 3.  42CrMo (Ultrahigh Strength  Steel) 4. DC53 ( Cold Work  Die Steel)  5. W6Mo5Cr4V2 ( High-Speed  Tool  Steel ) 6. HPT
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Main Alloy Materials1. Â Ni-based alloy/Deloro alloy
2.  Tungsten carbide/Wolfram carbide 3.  NiCo-based alloy 4. Fe-based alloy 5. Co-based alloy Â
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Processing Technics1. Heat treatment
2.  Quenching 3. Nitriding treatment 4.  Bimetallic alloy welding 5. Bimetallic alloy centrifugal casting 6. Hard-chrome electroplating
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Technical parametersNitriding layer depth
0.5-0.8mm
Nitrided hardness
HRC56-58
Nitrided brittleness
Less than grade 1
Surface roughness
Ra 0.4
Linearity of screw
0.015mm
Hard-chrome plating hardness
≥HRC57
Chrome-plating layer depth
0.03-0.09mm
Bimetallic layer depth
3 mm
Bimetallic layer hardness
HRC58-62
Above are main technical information, a suitable screw and barrel will be made according to your requirement.