Extrusion press container and liner for same, and method
AssigneeExco Technologies Limited
InventorPaul H. Robbins
Life of this patent
Estimating the term…
Abstract
A container for use in a metal extrusion press comprises: a mantle having an elongate body comprising an axial bore; an elongate liner accommodated within the axial bore. The liner comprises a longitudinally extending passage through which a billet is advanced, and an elongate slot adjoining the passage. The container also comprises a vacuum conduit in fluid communication with the passage for removal of gases from the passage during extrusion.
Claims20
A container for use in a metal extrusion press, the container comprising:
- a mantle having an elongate body comprising an axial bore;
- an elongate liner accommodated within the axial bore, the liner comprising:
- a longitudinally extending passage through which a billet is advanced, and
- an elongate slot adjoining the passage;
- and
- a vacuum conduit in fluid communication with the passage for removal of gases from the passage during extrusion.
A liner for use with a container for use in a metal extrusion press, the liner comprising:
- a longitudinally extending passage through which a billet is advanced, and
- an elongate slot adjoining the passage, the slot being sized to be in fluid communication with a vacuum conduit for removal of gases from the passage during extrusion.
A method of operating a metal extrusion press, the extrusion press having an extrusion container and an extrusion die, the method comprising:
- delivering a heated billet to the container;
- advancing the billet into the container and through the extrusion die using an extrusion ram;
- and
- applying suction to the container during said delivering and said advancing.
Dependencies are inferred from the claim text.