Wood Plastic screw configuration design

WPC extrusion process, the screw configuration plays an important role . Reasonable structure to reduce friction screw screw and wood fiber to produce the appropriate cut and mixed and dispersed , so that the material system contains a lot of wood flour can be very good even plastics . Mold design and cooling stereotypes.In addition to ensuring a smooth transition flow channel design with a reasonable flow distribution , WPC due to the ability to build pressure and temperature control accuracy is higher requirements.

To get a good fiber orientation and product quality must ensure there is sufficient head pressure build capacity and long styling segment , even in the compression section and setting section with double taper structure. Poor thermal conductivity of wood-plastic composite material , and its products are mostly profiles, more difficult to cool setting , the use of water-cooling stereotypes.