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Help Center75/30 Bimetallic Screw and Barrel for PVC Film Blowing Machine
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| Technical Information | |||
| Main Base materials | 1.38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro 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: 0.8-2 mm | ||
| 4. Bimetallic alloy welding for screw | Bimetallic hardness: 57~65HRC | ||
| 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 | ||
φ75/30 Photos:
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Finished conical twin extrusion screw barrel,barrel is outside cooling pipe
Bimetallic plastic extrusion conical twin screw barrel:ready for delivery
Bimetallic screw barrel after nitriding:usually we have such semi-finished screw barrel in store.when customer order,we will do polishment finally and do shipment within 5 days.
BATTEN is located in Zhoushan City, the largest manufacture base of Screw Barrel in China.
With 1500 SQ.M workshop, and 40 experienced emplyees are equiped at BATTEN.
We equipped advanced technology and equipment for processing, test, as well as extended experience for design, nitrided , chrome plating, stainless steel, bimetallic and HVOF ( surface spraying technology) treatment for different demands.
we are able to design and make products as per your drawing and present parts. With high quality products, satisfies and prompt sevice , looking forward to cooperate with you.
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