Extrusion casting die for coating magnetic material onto strip - comprises upper and lower lips for casting dispersion onto flexible strip and stripper plates at casting edges

摘要

An extruder casting die has an orifice (3) for applying one or more layers (2) of a magnetisable layer onto a flexible strip (1). The casting die comprises upper (11) and lower (12) lips forming an orifice through which the magnetic dispersion (2) flows and is directed onto the flexible strip (1). Stripper plates (13) at both edges of the cast dispersion (2) are perpendicular to the extruder orifice (3). The dispersion (2) runs along the inner face (7) of the stripper plate (13) which extends (a) beyond both die lips (11, 12) towards the flexible strip (11). USE/ADVANTAGE - For applying a magnetic coating to a flexible non-magnetic strip. Reduces or eliminates swelling at the casting edges without using additional operations.