Oil Pump,Comepressor Oil Pump,Oil Supply Pump,Oil Suction Pump NINGBO JIECHENG ELECTROMECHANICAL CO.,LTD. , https://www.jiechengmechanical.com
Twin conical screw barrel,CM55 Kmd Series Conical screw barrel, PVC pipoe/profile extruder screw barrel, Twin Screw and Barrel, double screw barrel, twin conical screws 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
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
Experienced manufacturer, we will be the best choice.
Focus on quality and service.
Main Base materialsÂ
  1.38CrMoAlA  (Nitriding Steel)Â
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  Â
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Main Alloy Materials 1.  Ni-based alloy/Deloro alloyÂ
2.  Tungsten carbide/Wolfram carbide 3.  NiCo-based alloy 4. Fe-based alloy 5. Co-based alloy    Â
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Processing Technics 1. Heat treatmentÂ
2.  Quenching 3. Nitriding treatment 4.  Bimetallic alloy welding 5. Bimetallic alloy centrifugal casting 6. Hard-chrome electroplating  Â
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Technical parameters Nitriding layer depthÂ
0.5-0.8mmÂ
Nitrided hardnessÂ
HRC56-58Â
Nitrided brittlenessÂ
Less than grade 1Â
Surface roughnessÂ
Ra 0.4Â
Linearity of screwÂ
0.015mmÂ
Hard-chrome plating hardnessÂ
≥HRC57Â
Chrome-plating layer depthÂ
0.03-0.09mmÂ
Bimetallic layer depthÂ
3 mmÂ
Bimetallic layer hardnessÂ
HRC58-62Â
Above are main technical information, a suitable screw and barrel will be made according to your requirement.Â
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