screen changer in the extruder

Most plastic materials contain impurities, which can be easily removed by replacing the mesh on the flow path of polymer melt after the extruder. The screen changer is the textile SkyDrive with the same diameter as the extruder barrel.

Usually, a number of different mesh numbers form a package group. The finest mesh can filter the smallest solid particles in the melt flow, and the outer rough net is stronger, which prevents the larger particles from entering the inner screen changer.

In order to resist the force generated by melt flow, a circular steel plate with a dense hole is called a guard plate, which is embedded in the groove of the end of the extruder cylinder.

In order to replace the blocking mesh, remove the downstream equipment first, replace the old net with clean net lining, and re install it to the production line.