Extrusion press for extruding tubes
    1.
    发明授权
    Extrusion press for extruding tubes 失效
    挤压机挤出管

    公开(公告)号:US4206626A

    公开(公告)日:1980-06-10

    申请号:US874631

    申请日:1978-02-02

    摘要: In tube extrusion presses, there are two steps in production. Firstly, a mandrel pierces a hole through the center of a billet, the tip of the mandrel ending up just within the opening of the extrusion die. Secondly, the now hollow cylindrical billet is extruded through the die and over and around the tip of the mandrel to produce a tube. To limit the movement of the mandrel, stroke-limiting rods are provided which pass through bores in a part attached to the mandrel and in a fixed part of the press. The rods can be held fast in one or both of these bores, or released to slide through them, depending on the stage reached in the extrusion process.

    摘要翻译: 在管式挤压机中,生产中有两个步骤。 首先,心轴穿过坯料的中心穿过孔,心轴的尖端刚好在挤出模头的开口内。 其次,现在中空的圆柱形坯料通过模具挤出并且在芯棒的顶部和周围挤出以产生管。 为了限制心轴的移动,提供行程限制杆,其通过连接到心轴的部分中的孔并且在冲压机的固定部分中穿过。 杆可以在这些孔中的一个或两个中快速保持,或者根据挤出过程中达到的阶段释放以滑动它们。