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US 4,208,898 AGranted
Process and device for extruding a plurality of composite sections
AssigneeSwiss Aluminium Ltd.
InventorsAdolf Ames, Alfred Wagner, Ulrich Zillmann
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AssigneeSwiss Aluminium Ltd.
InventorsAdolf Ames, Alfred Wagner, Ulrich Zillmann
Estimating the term…
A process and device for carrying out the process allows for the extrustion of composite sections comprising a beam-like section made of a light metal and at least one insert made of another metal which provides a facing on at least one surface of the beam-like section. The beam-like section, which may be a conductor rail, is produced by extruding through a shape-giving die whereby at least two composite sections are produced simultaneously and the facing strips are positioned pairwise between opposite lying parts of the beam-like sections. The present invention allows the facing strips to be introduced into the extrusion device without the extreme bending previously experienced. Brittle materials which could not withstand the extreme bending experienced heretofore can now be used for facing material.
A process for the continuous extrusion of a plurality of composite metal sections, each composite metal section comprising a beam-like metal section and at least one insert of shaped strip of another metal which forms at least part of the surface of the beam-like section, the beam-like section of said composite is produced by extruding a billet through a shape-giving opening in an extrusion die, wherein at least two composite metal sections are produced simultaneously, and the shaped strips are fed pairwise between opposite lying parts of opposing beam-like metal sections to be provided with said strip, wherein a plurality of billets for producing said beam-like metal sections are fed continuously on both sides of the strips to the extrusion die on moving surfaces.
A device for the simutaneous continuous extrusion of a plurality of composite metal sections, each composite metal section comprising a beam-like metal section and an insert of shaped facing strip of another material, which comprises at least one die and die opening for extruding a plurality of billets into a plurality of beam-like metal sections, a plurality of continuously moving surfaces provided at the sides of said die opening for continuously moving said plurality of billets towards said die opening and channel means for guiding said facing strips to said die between opposite lying parts of said beam-like sections wherein the facing strips are arranged such that they can be conveyed along an axial plane by a drive mechanism positioned away from the moving surfaces.
Dependencies are inferred from the claim text.