Extrusion molding equipment mainly includes the main machine and auxiliary machine two parts. The main machine is called extruder, which is composed of extruding system screw, barrel, feeding device, etc. As the heart of the extruder, the screw has a very important impact on the quality and output of the extruder product. The main function of a screw is to transport materials, heat transfer plasticizing materials and mixing and homogenizing materials.
Injection screw is an important part of injection molding machine. Its role is to transport, compact, melt, stir and pressure the plastic. All of this is done by rotating the screw inside the barrel. When the screw rotates, the plastic friction and mutual movement will occur between the inner wall of the barrel, the bottom surface of the screw groove, the propeller surface of the screw edge, and the plastic and the plastic. The forward motion of the plastic is the result of this combination.
