-
1.发明授权Steering, tensing and driving a revolving casting belt using an exit-pulley drum for achieving all three functions 失效转向，拉紧和驱动旋转铸造带，使用出口皮带轮滚筒实现所有三种功能
公开(公告)号：US6026887A
公开(公告)日：2000-02-22
申请号：US810414
申请日：1997-03-04
IPC分类号： B22D11/06
CPC分类号： B22D11/0605 , B22D11/0677
摘要： Steering, tensioning and driving a revolving metallic casting belt in continuous casting machines wherein the belt travels along a generally straight casting plane P. Two two-axis robotic mechanisms are positioned at opposite ends of an exit-pulley drum, each including a "floating" housing carrying a bearing rotatably supporting a journal at the respective drum end. A drive shaft connected to one of the journals rotates the drum for revolving the belt. The robotic mechanisms adjustably position opposite ends of a rotating drum in X--X plane parallel with plane P for tensioning the belt and in Y--Y plane perpendicular to plane P for steering the revolving belt. These robotic mechanisms are controlled to operate in any of several modes: (1) "Walking-tilt" steering keeps the belt much closer to an exiting product than prior art, the belt being flatter and in better contact with the product for improving casting speed and quality. Mode (2) provides a "virtual squaring shaft" causing a drum to simulate being constrained by a rigid mechanical squaring shaft for synchronizing downstream movements of both drum ends for regularizing tension fully across a "cylindrical" casting belt. In modes (3), (4) and (5) the rigidity of the virtual squaring shaft may be "softened," or re-zeroed or eliminated, to accommodate small "frustro-conical" errors in belt manufacture. Moreover, even a small error in built-in length dimensions of a belt carriage may effectively be canceled by mode adjustments which effectively "twist" the virtual squaring shaft.
摘要翻译： 在连续铸造机器中转向，张紧和驱动旋转的金属铸造带，其中带沿着大体上直的铸造平面P行进。两个两轴机器人机构位于出口 - 皮带轮鼓的相对端，每个包括一个“浮动” 壳体承载在相应的鼓端部可旋转地支撑轴颈的轴承。 连接到其中一个轴颈的驱动轴使滚筒旋转以使皮带旋转。 机器人机构可以将平面P平行于X-X平面的旋转滚筒的相对端定位在与平面P垂直的Y-Y平面上，用于转动皮带。 这些机器人机构被控制为以下几种模式中的任何一种操作：（1）“步行倾斜”转向使得皮带比现有技术更靠近离开的产品，带更平坦并且更好地与产品接触以提高铸造速度 和品质。 模式（2）提供了一个“虚拟平方轴”，使得滚筒模拟受刚性机械平方轴的限制，用于使两个滚筒端部的下游运动同步，以使整个横跨“圆柱形”铸造带的张力正常化。 在模式（3），（4）和（5）中，虚拟平方轴的刚度可能会“软化”或重新归零或消除，以适应皮带制造过程中的“截头圆锥形”错误。 而且，通过有效地“扭曲”虚拟平方轴的模式调整，也可以有效地消除皮带托架的内置长度尺寸的小误差。
-
2.发明授权Apparatus for steering casting belts of continuous metal-casting machines equipped with non-rotating, levitating, semi-cylindrical belt support apparatus 有权连续铸造铸造机的转向铸造带装置，配备有非旋转，悬浮，半圆柱形带支撑装置公开(公告)号：US07156147B1
公开(公告)日：2007-01-02
申请号：US11253992
申请日：2005-10-19
IPC分类号： B22D11/06
CPC分类号： B22D11/0605 , B22D11/0677
摘要： An apparatus for guiding a moving, flexible, tensed casting belt on a continuous metal casting machine along a substantially oval path. The continuous metal casting machine having an entrance-end, an exit-end and a moving-mold casting region extending from the entrance-end to the exit-end. The apparatus includes a non-rotating fluid pillow structure at the entrance end of the machine. The fluid pillow structure supports the mold-width of the casting belt. The apparatus includes two narrow shoulder-pulleys at the entrance end of the casting machine which are adjacent to opposite sides of the entrance-end fluid-pillow structure. Each pulley supports a portion of the belt outside of the moving-mold casting region. Each pulley guides the belt around the fluid-pillow structure as the belt revolves along its substantially oval path. The apparatus also facilitates the sealing, controlled-venting and recovery of pressurized fluids used to levitate the belt about a fluid-pillow structure.
摘要翻译： 一种用于沿着基本上椭圆形路径在连续铸造金属铸造机上引导移动的，柔性的，张紧的铸造带的装置。 该连铸金属铸造机具有从入口端到出口端延伸的入口端，出口端和移动模铸造区域。 该设备包括在机器入口端的非旋转流体枕头结构。 流体枕头结构支撑铸造带的模具宽度。 该设备包括在铸造机的入口端处与入口端流体 - 枕头结构的相对侧相邻的两个窄肩带轮。 每个滑轮支撑移动模具铸造区域外部的带的一部分。 当皮带沿其基本上椭圆形的路径旋转时，每个滑轮引导皮带围绕流体 - 枕头结构。 该装置还有助于密封，控制排放和回收用于使带围绕流体 - 枕头结构悬浮的加压流体。
-
3.发明授权Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product 失效双带连续铸造机，具有容纳和冷却流出的铸造产品，用于实现熔融中心产品的高速铸造
公开(公告)号：US4901785A
公开(公告)日：1990-02-20
申请号：US224058
申请日：1988-07-25
IPC分类号： B22D11/06
CPC分类号： B22D11/0605 , B22D11/0677
摘要： In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.
-
公开(公告)号：US4915158A
公开(公告)日：1990-04-10
申请号：US203249
申请日：1988-06-06
IPC分类号： B22D11/06
CPC分类号： B22D11/0668
摘要： A method and belt composition for improving the performance and flatness of thin revolving flexible casting belts of continuous casting machines wherein at least one wall of the moving mold is provided by a thin flexible endless metallic casting belt having a permanent insulative coating with fluid-accessible porosity in this permanent coating. Contrary to prior methods and apparatus which have sought to protect the wide thin casting belts, the present method for improving belt flatness and performance involves providing a Helium-containing gaseous film between the metal and the front face of the casting belt which is coated with a permanent insulative porous coating. For significantly improved results, this gaseous film contains at least 8 percent and preferably 15 percent and optimally 20 percent or more of Helium by volume and is non-reactive with the metal being cast, resulting in a controlled increase in the rate of heat transfer and for causing such heat transfer to become more nearly uniform and stabilized across the width of the flexible casting belt than in prior continuous casting machines of the same moving mold cross-sectional shape and size. The freezing rate advantageously becomes stabilized at a substantially higher and more uniform rate, the belt flatness becomes stabilized and the cast metallic product is thereby substantially improved both in metallurgy and surface appearance. Also, copper or copper alloy casting belts are used in certain embodiments for enhancing heat-transfer effects and belt flatness. During casting at a given speed, the freezing rate and exit temperature of the metal being continuously cast can be controlled by varying the helium percentage in the gaseous film itself. In twin-belt machines, relative heat-transfer rates into upper and lower belts are controlled by adjusting the relative helium percentages in their respective gas films.
-
公开(公告)号：US4749027A
公开(公告)日：1988-06-07
申请号：US118404
申请日：1987-11-09
IPC分类号： B22D11/06 , B22D11/124
CPC分类号： B22D11/0668
摘要： A method and belt composition for improving the performance and flatness of thin revolving flexible casting belts of continuous casting machines wherein at least one wall of the moving mold is provided by a thin flexible endless metallic casting belt having a permanent insulative coating with fluid-accessible porosity in this permanent coating. Contrary to prior methods and apparatus which have sought to protect the wide thin casting belts, the present method for improving belt flatness and performance involves providing a Helium-containing gaseous film between the metal and the front face of the casting belt which is coated with a permanent insulative porous coating. For significantly improved results, this gaseous film contains at least 8 percent and preferably 15 percent and optimally 20 percent or more of Helium by volume and is non-reactive with the metal being cast, resulting in a controlled increase in the rate of heat transfer and for causing such heat transfer to become more nearly uniform and stabilized across the width of the flexible casting belt than in prior continuous casting machines of the same moving mold cross-sectional shape and size. The freezing rate advantageously becomes stabilized at a substantially higher and more uniform rate, the belt flatness becomes stabilized and the cast metallic product is thereby substantially improved both in metallurgy and surface appearance. Also, copper or copper alloy casting belts are used in certain embodiments for enhancing heat-transfer effects and belt flatness. During casting at a given speed, the freezing rate and exit temperature of the metal being continuously cast can be controlled by varying the helium percentage in the gaseous film itself. In twin-belt machines, relative heat-transfer rates into upper and lower belts are controlled by adjusting the relative helium percentages in their respective gas films.
-
-
-
-
搜索结果
5 条记录 (耗时 0.034 秒)
