PVC PE Cable Machine Conical Twin Screw and Barrel, twin conical screw barrel, bimetallic screw barrel
Specification:
45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188
The above are standard specifications, we can customize according to customers' requirements.
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
Warranty and service: 1 year.
Focus on quality and service.
Experienced manufacturer, we will be the best choice.
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
|
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