Abstract: A process for removing the screw from the screw cylinder of a screw-type injection molding machine and a screw-type injection molding machine of a corresponding configuration, having a base frame for receiving an injection unit which comprises a screw cylinder (1), a screw which is rotatable and axially displaceable in the screw cylinder and a drive device (2) for the screw, which is arranged axially behind the screw cylinder. The screw cylinder (1) is releasably connected to the drive device (2) and is pivotable, independently of the drive device (2), about a pivot axis (6) which extends vertically at a spacing in front of its rear end. The screw cylinder (1) and/or the drive device (2) are arranged to be movable separately from each other on the injection molding machine in the axial direction of the injection unit in order for the rear end of the screw to be pulled out of the drive device (2) after the connection has been released.

Abstract: A closure element of a slide closure includes a refractory plate having a sliding surface, peripheral edges and at least one flow passage extending through the refractory plate from the sliding surface to an opposite surface spaced therefrom. A metallic sheath partially encompasses the refractory plate and includes an edge portion embracing the peripheral edges of the refractory plate about the entire periphery thereof and a bottom portion adjacent the opposite surface of the refractory plate. The bottom portion of the metallic sheath has formed therein a plurality of openings exposing therethrough a plurality of surface areas of the opposite surface of the refractory plate. The plurality of openings are separated from each other and from the edge portion of the metallic sheath by a plurality of strips which thus form the bottom portion.