Product specifications: Ø 35/Ø 75- Ø 92/Ø 188
Technical specifications: Material: 38CrMoALA
Depth of nitride layer: 0.5-0.8mm
Nitriding hardness: 950-1020HV
Nitriding brittleness: ≤ Level 1
Surface roughness: Ra0.4um
Screw straightness: 0.015mm
Dual alloy hardness: HRC55-62
Double alloy depth:>2mm
Screw material: 38CrMoAlA, dual alloy spray welding can be used on the surface of the screw edge.
Barrel material: 38CrMoAlA, and the material inlet can be made of imported alloy steel.
　　The surface of the screw edge is made of imported double alloy steel, which has been specially treated to effectively improve the wear resistance of the barrel screw and extend its service life.
　　The compression ratio of the screw can be designed according to different raw materials or user requirements.
The characteristic curve of conical twin-screw is relatively hard, making it easier to adjust the shape of the temperature curve along the axial direction of the barrel. To meet the needs of plastics with a wide range of processing temperatures. Especially suitable for PVC granulation or PVC pipes, sheets, etc., various screw structures can be designed according to the size of calcium powder.