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LOCATION:Home > Product class > Screw & barrel > Extruder screw barrel> Single extruder screw cylinder of plastic extruder machine
| Main Base materials | 1.38CrMoAlA (Nitriding Steel) |
| 2. SKD-61 (Special Tool Steel) | |
| 3. 42CrMo (Ultrahigh StrengthSteel) | |
| 4. DC53 (Cold WorkDie Steel) | |
| 5. W6Mo5Cr4V2 (High-SpeedToolSteel) | |
| 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:900-1000HV | |
| Nitrided brittleness:under grade 1 | |
| Surface roughness:Ra 0.4 | |
| Linearity of screw:0.015mm | |
| Hard-chrome plating hardness after nitriding:≥950HV | |
| Chrome-plating layer depth:0.03-0.09mm | |
| Bimetallic layer depth;3 mm:3 mm |
Ningbo JAIHO Machinery Co.,Ltd.(JAIHO Group) | Address:Room 3-11,Green Apple Business Plaza,NO.672,Yongfeng West Road,Haishu District,Ningbo City | Tel: 0574-87359334
Fax: 0574-89086758 | E-Mail: thomas@jaihogroup.com.cn Website: www.jaihogroup.com.cn replica uhren | orologi replica