How to choose the extruder screw for extrusion molding of PVC hose? What are the requirements of structure size?

Polyvinyl chloride hose extruder for extrusion molding should be selected according to the specifications of the hose (refer to Table 2-10) extruder specifications. Extruder model for hose production: SJRG-ZDX mouth-port. The numerical labeling in the box is the same as that of the unit for rigid pipe production. The screw for PVC hose molding is of the same type as the screw for PVC hard pipe extrusion. The structural shape of the screw head adopts a smoother round head. There is no need to add a manifold and filter in front of the screw. When the diameter of the screw is large for the production of PVC hoses, the screw has to be cooled down during the production process. Pay attention to the cooling medium through the cooling, the temperature can not be too low, should control the cooling medium temperature in 120 (or so.). Extruding PVC hose with the mold "structure and extrusion of PVC hard pipe with the molding die structure is the same.