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公开(公告)号：US5894752A
公开(公告)日：1999-04-20
申请号：US931761
申请日：1997-09-16
摘要： An axially symmetric ring work piece is formed by a warm or hot, forward and backward extruding, die forging system. In this system, a die having a rearwardly projecting portion, which projects in the opposite direction to a pressing direction, a heated work piece, and a punch having a forwardly projecting portion, are arranged, in that order, in a container. A withdrawal die is arranged between the container, and the heated work piece, the die and the punch. The die is fixed so that a die velocity V.sub.D is 0, and the punch is moved toward the die while a punch velocity V.sub.P is set to be twice as large as a withdrawal die velocity V.sub.WD and the strokes of slide of the withdrawal die are not less than one-half of a forward-extruded foot length of a product. Thus, the forward and backward simultaneous extrusion can be substantially performed in a single-action type, short-stroke, die forging system. In addition, it is possible to effectively and accurately form a ring part, which has good metal flow and no defects, and which has a stable quality, at higher than 80 strokes per minute.
摘要翻译： 通过热或热，向前和向后挤压，模锻系统形成轴向对称的环形工件。 在该系统中，在容器中依次配置有具有与按压方向相反的方向突出的向后突出部的模具，加热的工件和具有向前突出部的冲头。 在容器和加热的工件，模具和冲头之间设置有退出模具。 模具被固定，使得模具速度VD为0，并且冲头向模具移动，同时冲头速度VP被设置为退出模具速度VWD的两倍，并且退出模具的滑动行程不是 小于产品前伸式脚长度的一半。 因此，向前和向后同时挤压可以基本上在单作用型，短冲程，模锻系统中进行。 此外，可以有效且准确地形成具有良好的金属流动性和无缺陷的环状部件，并且具有高于每分钟80冲程的质量稳定的环形部件。
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公开(公告)号：US5814787A
公开(公告)日：1998-09-29
申请号：US751284
申请日：1996-11-18
申请人： Shigeru Nishibayashi , Masahiro Ohara , Katsuhiro Minamida , Tadatsugu Yoshida , Rokuro Kohno , Atsushi Sugihashi
发明人： Shigeru Nishibayashi , Masahiro Ohara , Katsuhiro Minamida , Tadatsugu Yoshida , Rokuro Kohno , Atsushi Sugihashi
CPC分类号： B23K26/067 , B21B15/0085 , B23K26/0846 , B23K26/26 , B21B1/26 , B23K2203/04
摘要： Sheet bars are effectively joined while they are traveling and subjected to continuous hot rolling without causing defects in quality and without requiring large expensive apparatus such as a swing roller etc. The present invention is to provide a continuous hot rolling method and apparatus in which the tail of a preceding sheet bar is butted to the top of a succeeding sheet bar between the rough and finishing mills on a continuous hot rolling line, and the butted portion is welded from the upper surface of the sheet bars by means of laser beam or plasma arc while the sheet bars are traveling. According to the present invention, it is possible to join sheet bars from the upper surface in a short period of time without stopping the sheet bars and without causing splashes and burrs, before the sheet bars are subjected to continuous finish rolling. Since the welded apparatus does not interfere with the sheet bar conveyance table, hot strips of high quality can be effectively manufactured by the economical apparatus.
摘要翻译： 板条在行进时有效地连接并进行连续热轧，而不会造成质量上的缺陷，并且不需要诸如摆动辊等大型昂贵的设备。本发明提供一种连续热轧方法和装置，其中尾部 在连续热轧生产线上的粗轧机和精轧机之间的后续板坯的顶部对接，并且对接部分通过激光束或等离子体电弧从板材的上表面焊接 而钢筋条正在行驶。 根据本发明，在薄板坯进行连续精轧之前，可以在短时间内将片材从上表面接合而不停止片材，并且不会引起飞溅和毛刺。 由于焊接设备不影响纸张传送台，所以可以通过经济的装置有效地制造高品质的热带。
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3.发明授权
公开(公告)号：US5994665A
公开(公告)日：1999-11-30
申请号：US92292
申请日：1998-06-05
申请人： Shigeru Nishibayashi , Masahiro Ohara , Katsuhiro Minamida , Tadatsugu Yoshida , Rokuro Kohno , Atsushi Sugihashi
发明人： Shigeru Nishibayashi , Masahiro Ohara , Katsuhiro Minamida , Tadatsugu Yoshida , Rokuro Kohno , Atsushi Sugihashi
CPC分类号： B23K26/067 , B21B15/0085 , B23K26/0846 , B23K26/26 , B21B1/26 , B23K2203/04
摘要： Sheet bars are effectively joined while they are traveling and subjected to continuous hot rolling without causing defects in quality and without requiring large expensive apparatus such as a swing roller etc.The present invention is to provide a continuous hot rolling method and apparatus in which the tail of a preceding sheet bar is butted to the top of a succeeding sheet bar between the rough and finishing mills on a continuous hot rolling line, and the butted portion is welded from the upper surface of the sheet bars by means of laser beam or plasma arc while the sheet bars are traveling.According to the present invention, it is possible to join sheet bars from the upper surface in a short period of time without stopping the sheet bars and without causing splashes and burrs, before the sheet bars are subjected to continuous finish rolling. Since the welded apparatus does not interfere with the sheet bar conveyance table, hot strips of high quality can be effectively manufactured by the economical apparatus.
摘要翻译： 板条在行进时有效地连接并进行连续热轧，而不会造成质量上的缺陷，并且不需要诸如摆动辊等大型昂贵的设备。本发明提供一种连续热轧方法和装置，其中尾部 在连续热轧生产线上的粗轧机和精轧机之间的后续板坯的顶部对接，并且对接部分通过激光束或等离子体电弧从板材的上表面焊接 而钢筋条正在行驶。 根据本发明，在薄板坯进行连续精轧之前，可以在短时间内将片材从上表面接合而不停止片材，并且不会引起飞溅和毛刺。 由于焊接设备不影响纸张传送台，所以可以通过经济的装置有效地制造高品质的热带。
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