Hot sale Nitrided Bimetallic Screw And Barrel For Extruder Machine
1 . Description
| Barrel Material | high-quality alloy structural steel |
| Quenched and tempered hardness | HB260-280 |
| Nitriding hardness | HV950±50 degrees |
| Nitride layer depth | 0.4-0.6mm |
| Brittleness | ≤2 levels |
| Screw Material | high-quality alloy structural steel crown spray-welded nickel-based alloy powder |
| Alloy thickness | ≥1.5mm |
| Hardness | HRC53-56 |
| Scope of application | UPVC/PP/PE pipe production and profile production |
2 . For PE PP PPR bimetallic single plastic extruder screw
Material of the screw barrel
Screw barrel adapt high quality 38Cromaia raw material and due to different plastic material , screw barrel can spray bimetallic treatment which with more long service life.
Surface Treatment--PTA Machine
The bimetallic treatment of our screw by the PTA machine. It is a advance equipment which has not been broadly used in bimetallic treatment. Compare to the manual process the advantage is better temperature stability, dense structure and uniform thickness and not liable to crack.
Centrufugal Barrel Bimetallic
The bimetallic barrel is centrifugally cast a 2~4mm thick alloy coat on the output section of barrel inner wall which has excellent corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to the common nitrided barrel. Bimetal has more obvious advantages when processing high calcium carbonate powder PVC mixture to enhance the abrasion life.
High Speed Screw
high speed and high yield extrusion based on high quality.
the design concept of low temperature plasticizing ensures the extrusion of high quality products.
high torque output, extra-large thrust bearing.
gear, shaft for high strength alloy steel, carburizing, grinding treatment.
high hardness, high finish, ultra-low noise.
Application
The screw can be work for PP PE PPR pipe tube extrusion, for sheet film extrusion and for profile extrusion. The screw barrel will design according to customer demand like raw material, final product and output.
| Technical Information for single screw barrel |
| | 1.38CrMoAlA (SACM645) | | 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 |
| | 1. Heat treatment | | 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 |
| 7.Linearity of screw:0.015mm | Surface roughness:Ra 0.4 |
Product Tags:
|
|
Nitrided Bimetallic Screw And Barrel For Extruder Machine Images
|
