WPC extrusion process, the extruder temperature and pressure control is also very important. If the extrusion temperature is too high, the material easy to degrade,cheap outdoor pvc fence reclaimed while the high temperature melt viscosity is low, out of lack of pressure, causing the product surface roughness, intensity difference, impact extrusion quality. The temperature is too low such that the plasticizing bad, strength can not be fully wrapped in flour, also make products affected. Meanwhile,

melt fracture sensitive counterparts mold temperature, high and low temperatures will cause the die melt fracture. Appropriate to reduce the temperature of the extruder head pressure increase,how to build wood deck for above ground pool reducing the screw speed, can effectively improve the performance of wood-plastic composite extrusion system. 5.4 Molding Parameter Description To give the corresponding after kneaded pellets into the mold, then add the hot pressing molding machine,

then use the method to be rapidly cooled down to a temperature close to the upper and lower platen 100 Celsius remove the pressed slab completely cooled to room temperature product Combine flour and PVC inner strength and pressing temperature was a significant linear correlation pressing temperature increased by 10 Celsius,can you use muriatic acid to clean wood deck internal bond strength increases o. 42MPa, when the pressing temperature at 185 ~ 195 Celsius, the internal bond strength little change;