| 发明名称 |
Extrusion press for making profiles of nonferrous metal |
| 摘要 |
An extrusion press for making profiles of nonferrous metal has a ram, a hydraulic piston/cylinder assembly for moving the ram, a pump connected to the assembly for pressurizing same, and an electric motor connected to the pump for driving same. A multiphase source of electricity is connected via a controller to the electric motor for a soft start of the motor. |
| 申请公布号 |
US9211577(B2) |
申请公布日期 |
2015.12.15 |
| 申请号 |
US201113027303 |
申请日期 |
2011.02.15 |
| 申请人 |
SMS MEER GMBH |
发明人 |
Adolphy Dirk;Glass Georg;Heinen Peter |
| 分类号 |
B21C23/21;B21C31/00 |
主分类号 |
B21C23/21 |
| 代理机构 |
|
代理人 |
Wilford Andrew |
| 主权项 |
1. An extrusion press for making profiles of nonferrous metal, the press comprising:
a ram; a hydraulic piston/cylinder assembly for moving the ram; a pump connected to the assembly for pressurizing same; an electric motor connected to the pump for driving same; a multiphase source of electricity; a bidirectional thyristor connected between the source and the electric motor and control means connected to the bidirectional thyristor for a soft start of the motor by phase control of the multiphase electricity from the source. |
| 地址 |
Moenchengladbach DE |
