Submerged perforated plate, for extruded molten plastics into a water bath to be chopped into granules, has a body with a wear protection layer and electric heating at the extrusion channels

摘要

The perforated plate, for a submerged granulator, has a body (1) with a wear protection layer (2) on the downstream side. The jet channels (4) through the body and protective layer are within an electric resistance or induction heating (3), with the wires between the body and the layer.