Method of manufacturing extruded seamless hollow materials
    1.
    发明授权
    Method of manufacturing extruded seamless hollow materials 失效
    挤出无缝中空材料的制造方法

    公开(公告)号:US4967583A

    公开(公告)日:1990-11-06

    申请号:US423585

    申请日:1989-10-17

    IPC分类号: B21C23/08 B21C25/04

    CPC分类号: B21C23/085 B21C25/04

    摘要: A method of manufacturing extruded seamless hollow materials characterized in that, prior to extruding a hollow billet from container liner through extrusion dies, a process wherein a centering jig for holding the tip portion of mandrel at the center of extrusion is provided on the extruding side or in the extrusion dies on the extruding side of the container liner, a process wherein the tip portion of mandrel is inserted into the centering jig to be held and a process wherein the hollow billet is pressurized to fill up said billet in the container liner are included.

    摘要翻译: 一种制造挤出无缝中空材料的方法,其特征在于,在从容器衬里挤出中空坯料通过挤出模头之前,将其中将心轴的尖端部分保持在挤出中心处的中心夹具设置在挤出侧或 在容器衬里的挤出侧的挤出模具中,包括将心轴的尖端部分插入要保持的定心夹具中的方法以及其中中空坯料被加压以填充容器衬里中的所述坯料的方法 。