PVC Pipe/profile Parallel Twin Screw Barrel, twin parallel screw barrel, extrusion screw barrel, double screw barrel
Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
High quality 38CrMoAla material
Nitration surface treating
The compression ratio of screws can be designed according to different products and ingredients
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
Warranty and service: 1 year
Foucs on quality and service.
Experienced manufacturer, we will be the best choice.
Base Materials: |
1)W6Mo5Cr4V2
2)38CrMoAlA(JIS SACM 645)
3)42CrMo(AISI 4140)
4)S45C |
Bimetallic Alloy Materials: |
1)Fe-based alloy
2)Ni-based alloy
3)Co-based alloy
4)Tungsten carbide |
Processing Technology: |
1)Heat treatment
2) Vacuum quenching
3)Nitriding treatment
4)Bimetallic alloy welding |
Technical Parameter:
|
Nitrided layer depth : 0.50-0.80mm
Nitrided hardness: 900-1100HV
Nitrided brittleness: Less than 2 level
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
Bimetallic layer depth: 2 mm
Bimetallic hardness: HRC50-65 |