PMMA (polymethyl methacrylate) injection screw barrels
Specification
Material
Parameter
Feature
- PMMA has no special requirements of design for screw barrel. Because the melt viscosity is big, need deep screw slots and large diameter shoot nozzle holes to plasticizing in low temperature.
Screw diameter: Ø12-300MM L/D:15-55
Barrel diameter: Ø25-500MM Length:300-1000MM
38CrMoAlA(JIS SACM645)
Cr12MOV(JIS SKD-11)
4Cr5MoSiV1(JIS SKD-61)
42CrMo(AISI 4140)
9Cr18MoV
Stainless steel,etc.
Nitrided layer depth:0.50-0.80mm
Nitrided hardness: 900-1100HV
Nitrided brittleness: Less than 2 level
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
Grade | Material | Process |
Standard grade | 38CrMoAlA | Nitriding 96 hours |
Bimetallic grade | 38CrMoAlA | HP/HVOF |
TC-A grade | Tungsten carbide 40% | Centrifugal casting |
TC-B grade | Tungsten carbide 25% | Centrifugal casting |
TC-C grade | Tungsten carbide 10% | Centrifugal casting |
Our screw barrel are made by using advanced technology and equipment which provide various mechanical features such as strong ability, durability, exact fitting, etc. Our aim is focusing on customers requirement and create high quality products and technology.