Dry material for plastics processors for each are inevitable. Meanwhile, in order to produce high quality products, this process is also very important. Choose a reasonable drying technology helps to save costs, reduce energy consumption, while the correct assessment and cost-drying technology has important significance for the selection of suitable drying equipment.
Increase the water content of the material will gradually reduce shear viscosity. In the process, due to changes in melt flow properties, the quality of products and a range of processing parameters will also change accordingly. For example, dead time is too long causes residual moisture content is too low resulting in increased viscosity, which will cause insufficient mold filling, but also cause yellowing of the material.
When selecting the drying process, the drying properties of the material identification of critical importance. Material can be divided into two kinds of absorbent and non-absorbent.
In addition, a calculation of the energy consumption of the drying process, and may be the complexity of the processing operations and other factors. So the values presented here for informational purposes only.
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