Apparatus for producing a foamed thermoplastic resin article

摘要: An apparatus for producing a foamed thermoplastic resin comprising an extruder including barrel through which is fed while being melted and head to extrude said molten from barrel, gas injector means inject into in injecting port whereby article formed by extruding containing resin, characterized metering or flow rate setting disposed adjacent connected conduct therethrough constant maintained, volume of passage sufficiently set the pressure respond variation barrel.