发明名称 |
Process for extruding a hollow section or the like from a billet and a device for that purpose |
摘要 |
A process for extruding a section or the like from a billet, in which a billet is introduced into the bore of a container and, by an extrusion stem, is fed in the direction of extrusion into a shape-forming cross-sectional opening in a die. The billet material is pressed into a central inlet in the die and the resultant ductile mass fed outwards at an angle to the direction of extrusion through a plurality of channels to the shape-forming cross-section. The main load is applied by the extrusion force acting outside the central inlet and the shape-forming region and is preferably diverted outside the shape-forming region to the supporting die parts.
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申请公布号 |
US6192730(B1) |
申请公布日期 |
2001.02.27 |
申请号 |
US19990397352 |
申请日期 |
1999.09.16 |
申请人 |
ALUSUISSE TECHNOLOGY & MANAGEMENT LTD. |
发明人 |
AMES ADOLF;WOEMPNER DIETHLEM |
分类号 |
B21C23/08;B21C25/00;(IPC1-7):B21C25/04 |
主分类号 |
B21C23/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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