Model NO. | Twin Conical Screw Barrel | Assembly Structure | Separate Type Extruder |
Screw | Twin-Screw | Engagement System | Full Intermeshing |
Screw Channel Structure | Deep Screw | Exhaust | Don′t Exhaust |
Automation | Automatic | Computerized | Computerized |
Screw Barrel | Twin Screw Barrel for PVC Granule | Transport Package | Wooden Case |
Specification | ISO9001: 2008 | Trademark | Zhongyang |
Origin | Zhejiang of China | HS Code | 84779000 |
Production Capacity | 500sets/Month |
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 | ||
Main Alloy Materials |
1. Ni-based alloy/Deloro alloy | |
2. Tungsten carbide/Wolfram carbide | ||
3. NiCo-based alloy | ||
4. Fe-based alloy | ||
5. Co-based alloy | ||
Processing Technics |
1. Heat treatment | |
2. Quenching | ||
3. Nitriding treatment | ||
4. Bimetallic alloy welding | ||
5. Bimetallic alloy centrifugal casting | ||
6. Hard-chrome electroplating | ||
Technical parameters |
Nitriding 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. |