Model NO.: GMT-Screw
Nitrided Depth: 0.5-0.8mm
Surface Roughness: ≤Ra0.4
Trademark: GMT
Transport Package: AA Wooden Case
Specification: Customize
Origin: China
HS Code: 84779000

Technical Information for extruder machine single screw barrel | |||
Main Base Materials | 1. 38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro alloy |
2. SKD-61 (Special Tool Steel) | 2. Tungsten carbide/Wolfram carbide | ||
3. 42CrMo (Ultrahigh Strength Steel) | 3. NiCo-based alloy | ||
4. DC53 (Cold Work Die Steel) | 4. Fe-based alloy | ||
5. W6Mo5Cr4V2 (High-Speed Tool Steel) | 5. Co-based alloy | ||
Processing Technics | 1. Heat treatment | Technical Parameters | Nitriding layer depth: 0.5-0.8mm |
2. Quenching | Nitrided hardness: 900-1000HV | ||
3. Nitriding treatment | Bimetallic layer depth: 3 mm | ||
4. Bimetallic alloy welding for screw | Bimetallic hardness: 57~69HRC | ||
5. Bimetallic alloy centrifugal casting for barrel | Hard-chrome plating hardness after nitriding: ≥950HV | ||
6. Hard-chrome electroplating | Chrome-plating layer depth: 0.03-0.09mm | ||
Linearity of screw: 0.015mm | Surface roughness: Ra 0.4 |
Screw Types:
Gradual change, chop, barrier, distributary, separate, air exhausting, pin, mixing and etc.
For good plasticizing effect, we have different design of screw barrel to meet customer's demand.
Specification :
Dia 20mm-250mm; L/D=15-45
Scope of Application:
1. Generally plastic material
2. Pipe/Profile/Sheet/Pelletizing
3. WPC, ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU, PE etc

Treatment:
Nitrized, Chrome coating, Quenching, Bimetallic
We are focused on each process to make sure each screw barrel is qualified according to technical requirement.

Packaging Details:
1. Be brushed with anti-corrosive oil on extruder machine single screw.
2. Packed with film.
3. Packed in AA wooden case.


Please provide samples or requirements about dimensions and tolerances of, semi-finished and finished products, the equipment, the monthly consumption quantity, the current screw and barrel you are using, HRC and so on.

For more information, please kindly contact as below:
Mobile: +86-13917356326
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Shenzhen Xinzerong Technology Co., Ltd , https://www.xzr3d.com