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| Technical Information for screw and barrel for rubber machine | |||
| 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 StrengthSteel) | 3. NiCo-based alloy | ||
| 4. DC53 (Cold WorkDie Steel) | 4. Fe-based alloy | ||
| 5. W6Mo5Cr4V2 (High-SpeedToolSteel) | 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 | ||
RUBBER MACHINE SCREW AND BARREL
Material
Alloy-Steel of High-quality
1) 38CrMoALA (JIS SACM645)
2) 42CrMo (JIS SCM440)
3) 9Cr18MoV
4)CW6Mo5Cr4V2
Heat-treatment
Nitriding Treatment
Electroplated hard-chrome finish
High-frequency quenching
Spray coating Bimetallic-alloy
Vacuum quenching
COLD FEED PINNED SCREW&BARREL OF RUBBER MACHINE
DIA 60mm--250mm
L/D: 12--18
COLD FEED SCREW&BARREL OF RUBBER MACHINE
DIA 45mm--300mm
L/D: 8—20
HOT FEED SCREW&BARREL OF RUBBER MACHINE
DIA 45mm--250mm
L/D: 4--6
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