Device for extruding sections from an ingot
AssigneeSwiss Aluminium Ltd.
InventorsAlfred Wagner, Adolf Ames, Karl Graf
Life of this patent
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Abstract
A device for extruding ingots, in particular for extruding light metal ingots through a shaping die placed downstream of the ingot, is provided with a scalping facility for removing an outer layer of the ingot immediately prior to extrusion. The said scalping facility is made up of a plurality of blades or similar scalping facilities which together form a scalping ring and can be moved radially with respect to the direction of extrusion, and can be released from the ingot.
Claims9
An improved extruding device for extruding sections from ingots and in particular light metal ingots such as aluminum or the like comprising:
- container means, said container means having a hollow center extending therethrough along a first axis;
- shaping die means located in part within said hollow center;
- ram means having an axis substantially parallel to and in line with said first axis, said ram means including a pressure plate provided with a working face;
- wherein said shaping die means and said working face each include deformation means for deforming the end faces of said ingot so as to form an edge on the outer periphery of said end faces which continuously seals against the surface of the container defining said hollow center;
- and
- wherein said container is provided with means for removing air trapped between said ingot and said surface of said container defining said hollow center.
Dependencies are inferred from the claim text.