In what circumstances is the net screen changer invented
In what circumstances is the net screen changer invented?
In extrusion molding, the impurities mixed into the melted plastic not only affect the product quality, but also hinder normal production. Therefore, filter devices are installed in the extruder to separate and remove impurities, ensure product quality and stable production. The filter screen changer device is generally made up of filter net plate and filter net. Filter screen use - after a period of time, due to impurities such as clogging mesh and need to be replaced, the replacement of filter screen using filter screen changer(mesh screen changer).
With the rise of raw material prices, in order to reduce costs and increase profits, plastic enterprises increase the proportion of recycled or inferior materials, which puts forward requirements for the reliability of production line filtration. For some products (such as gas pressure pipes), the requirement of polymer melt filtration fineness has been written into the quality documents abroad, because its physical properties (such as impact resistance) are directly related to the filter fineness in the production of products, which promote the application and development of the screen changer.
At present, this kind of filter exchanger has been widely used in plastic processing such as blowing film, granulating, recycling, pressing, spinning, injection molding, blow molding and foaming.