B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
B30B 11/22 (2006.01) B21C 27/04 (2006.01) B23Q 11/08 (2006.01)
Patent
CA 2085086
The press comprises a sealing and suction device (32; 232) mounted around the plunger (18; 218) with the possibility of sliding axially along the same; the said device creates an airtight seal against the wall of a billet container (20) when the plunger is working within -the chamber of said container (20). One or more connection tubes (42) connect the enclosed space with an apparatus generating a vacuum or with an environment under vacuum. The vacuum is created in the container before beginning extrusion, as soon as the plunger has entered 'the container.
Gowling Lafleur Henderson Llp
Techint - Compagnia Tecnica Internazionale S.p.a.
LandOfFree
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