B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 23/06 (2006.01) B21C 23/00 (2006.01) B21C 25/00 (2006.01) B21C 35/00 (2006.01) B21C 37/04 (2006.01)
Patent
CA 2100356
2100356 9309889 PCTABS00022 Twin metal billets (31) are fed to dual circumferential grooves (44) formed in a rotating wheel (43). The billets are advanced first to a edge-shaped gap which deforms the billets and are then advanced to a die (63). The die has a die opening with a circumferentially discontinuous, annular cross section. The metal from each billet merges in the die opening and exits therefrom in the form of a slit tube (34). The tube is then opened and flattened to form a flat strip (39) by advancing the slit tube over a forming member (38) having a progressively increasing width.
Deux billettes de métal (31) sont introduites dans deux rainures circulaires (44) pratiquées sur une roue (43). Les billettes avancent d'abord jusqu'à un espace en forme d'arête qui les déforme et elles sont ensuite conduites à une matrice (63). La matrice a une ouverture comportant une section transversale annulaire dont la circonférence est discontinue. Le métal de chaque billette se combine dans l'ouverture de la filière et en sort sous la forme d'un tube fendu (34). Le tube est ensuite ouvert et aplati pour former une bande plate (39) lorsqu'on passe le tube fendu sur un élément de formage (38) dont la largeur augmente progressivement.
Buckley Richard D.
Harris Darrell D.
Linsenbardt Thomas L.
Struemph Dennis J.
Younger Harold
Abb Power T&d Company Inc.
Mccarthy Tetrault Llp
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