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公开(公告)号：US06913074B2
公开(公告)日：2005-07-05
申请号：US10634175
申请日：2003-08-04
CPC分类号： F28F1/40 , B21C37/207 , Y10T29/49373 , Y10T29/49382 , Y10T29/49384
摘要： A method of manufacturing an internal grooved tube according to the present invention includes the steps of inserting a grooved plug into a blank tube rotatably, and then pressing the blank tube against the outside surface of the grooved tube with several balls revolving both around the circumference of the blank tube and on its axis in location of the grooved plug inserted, while drawing out the blank tube longitudinally in one direction, wherein the number of balls is limited to 2 to 3. A lead angle θ of the grooves to the tube axis is preferably limited to 26 to 45 degrees.
摘要翻译： 根据本发明的制造内槽管的方法包括以下步骤：可旋转地将带槽的塞子插入坯管中，然后将坯管压靠在带槽管的外表面上，其中多个滚珠围绕圆周旋转 空白管和插入槽形插头位置的轴上，同时沿一个方向纵向拉出坯管，其中球的数量限制在2至3个。槽与管轴线的导角θ为 优选地限制在26至45度。
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公开(公告)号：US06470723B2
公开(公告)日：2002-10-29
申请号：US09873932
申请日：2001-06-04
IPC分类号： B21B1500
CPC分类号： B21C1/24 , B21C37/207
摘要： The present invention is an apparatus for manufacturing an internal grooved tube, in which has a rotary die and a working head having a plurality of balls retained inside in such a way as to rotate with play are provided along the drawing direction of a metal blank tube in order and in such a way as to rotate separately, which is constructed in such a way that multiple grooves are formed in the internal surface of the metal blank tube by pressing the metal blank tube where a plug and a grooved plug rotatably coupled to the plug are inserted against the outer surface of the grooved plug as the metal blank tube is put through the rotary die and the working head and drawn, and which has lubricating-oil feeding units and separatedly provided at upstream sides of the rotary die and the working head.
摘要翻译： 本发明是一种内部槽管的制造装置，其特征在于，具有旋转模具和具有多个保持在内侧的滚珠的工作头沿着金属坯料管的拉拔方向设置， 以分开方式旋转，其以这样的方式构造，即通过按压金属坯料管在金属坯料管的内表面中形成多个槽，其中可旋转地联接到金属坯管的插塞和带槽插塞 当金属坯料管通过旋转模头和工作头被拉出并且具有润滑油供给单元并且分离地设置在旋转模具的上游侧时，插头被插入到带槽插塞的外表面上，并且工作 头。
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