发明名称 |
VACUUM EXTRUSION PRESS ASSEMBLY FOR METALS |
摘要 |
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.
|
申请公布号 |
CA2085086(C) |
申请公布日期 |
2004.05.18 |
申请号 |
CA19922085086 |
申请日期 |
1992.12.10 |
申请人 |
TECHINT - COMPAGNIA TECNICA INTERNAZIONALE S.P.A. |
发明人 |
CRISTIANI, GIANCARLO |
分类号 |
B21C23/21;B21C26/00;B21C27/04;B23Q11/08;(IPC1-7):B30B11/22 |
主分类号 |
B21C23/21 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|