 Specification: Diameter: Φ45/2~Φ250/2 L/D ratio: 16-40 The compression ratio of screws can be designed according to different raw material and products.
1.Barrel material: 38CrMoAlA Nitride treatment, surface hardness: HV≥900 Nitride layer thickness: 0.5~0.8mm 2.Screw alloy material: 38CrMoAlA as basic material, bimetallic alloy is welded on the screw flight , prolonging the life of the screw.
|
|
|