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公开(公告)号：US6085828A
公开(公告)日：2000-07-11
申请号：US201319
申请日：1998-11-25
IPC分类号： B22D11/103 , B22D11/18
CPC分类号： B22D11/103 , B22D11/181
摘要： An opening 206 is provided in a system for delivering molten metal to the mold cavity 18 of a molten metal casting apparatus. A valve closure device 192, 196 is mounted at 198 to be reciprocated in relation to the opening 206 to control the flow of molten metal therethrough, and the driven end 206 of a bellows motor 208 is connected with the valve closure device at 258 to reciprocate the device in relation to the opening. A pair of concentric relatively inside and outside thimble-shaped chambers 238 and 240, 264 is circumposed about the bellows motor so that the bight portions thereof are opposed to the driven end of the motor, and interconnected with one another by a restricted liquid flow passage 270 in the screw 268. When fluid input signals are generated in the relatively outside chamber 240, 264, for the actuation of the closure device through the bellows motor, each signal is transmitted to the end of the bellows motor through the restricted liquid flow passage 270 and the relatively inside chamber 238. But when suction occurs in the opening 206 of the molten metal delivery system, the restricted liquid flow passage 270 substantially resists the transmission of relatively low pressure feedback signals to the fluid input signals from the driven end 260 of the bellows motor because of the restriction in the passage.
摘要翻译： 在用于将熔融金属输送到熔融金属铸造装置的模腔18的系统中设置有开口206。 阀闭合装置192,196安装在198处以相对于开口206往复运动，以控制熔融金属流过其中，并且波纹管马达208的驱动端206与阀闭合装置258连接以往复运动 该装置相对于开口。 一对同心相对的内外套筒形状的室238和240,264围绕波纹管电动机环绕，使其弯曲部分与电动机的驱动端相对，并且通过受限制的液体流动通道彼此互连 当在相对外部的室240,264中产生流体输入信号时，为了通过波纹管电动机致动闭合装置，每个信号通过限制的液体流动通道传递到波纹管电动机的端部 但是当在熔融金属输送系统的开口206中发生吸力时，限制液体流动通道270基本上阻止相对低压反馈信号传递到来自驱动端260的流体输入信号 波纹管马达由于通道的限制。
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公开(公告)号：US5339885A
公开(公告)日：1994-08-23
申请号：US58909
申请日：1993-05-07
申请人： A. David Sinden , Hans Fischer , Roy V. Twining
发明人： A. David Sinden , Hans Fischer , Roy V. Twining
CPC分类号： B22D11/181 , B22D2/003
摘要： A metal casting control device is provided for use in conjunction with a semi-continuous metal casting system. The control device is an integral module containing a metal surface elevation sensing device, a valve actuator for positioning a metal distribution control valve, and electronic circuits associated with these mechanical components. The control device module is adapted to be connected to an overhead metal distribution launder by a single quick-coupling for convenient and simple removal and replacement. Calibration of the control device is performed after installation by mounting a calibration target on the metal casting system and vertically adjusting the metal surface elevation sensing device until an integral calibration indicator positioned on the control device indicates that the proper vertical position has been attained. The metal surface elevation sensing device is formed by a manually-adjustable sensor carriage and a sensor support which is mounted for automatic vertical movement relative to the sensor carriage. An inductive proximity sensor is supported over a metal casting station by the sensor support. The vertical position of the sensor support is controlled to maintain the sensor within a fixed vertical distance from the surface of molten metal within the metal casting station.
摘要翻译： 提供一种与半连续金属铸造系统结合使用的金属铸造控制装置。 控制装置是包含金属表面仰角检测装置，用于定位金属分配控制阀的阀致动器和与这些机械部件相关联的电子电路的整体模块。 控制装置模块适于通过单个快速联接器连接到顶置金属配线槽，方便简单的拆卸和更换。 控制装置的校准是通过将校准目标安装在金属铸造系统上并垂直调整金属表面仰角传感装置而进行的，直到位于控制装置上的积分校准指示器指示已经达到正确的垂直位置为止。 金属表面高度感测装置由手动可调的传感器支架和传感器支架形成，传感器支架安装成相对于传感器支架自动垂直移动。 电感式接近传感器由传感器支撑件支撑在金属铸造工位上。 控制传感器支撑件的垂直位置，以将传感器保持在金属铸造站内的熔融金属表面固定的垂直距离之内。
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公开(公告)号：US08347949B2
公开(公告)日：2013-01-08
申请号：US13333469
申请日：2011-12-21
申请人： Mark Anderson , Todd F. Bischoff , James Boorman , Wayne J. Fenton , David Sinden , John Steven Tingey , Robert Bruce Wagstaff
发明人： Mark Anderson , Todd F. Bischoff , James Boorman , Wayne J. Fenton , David Sinden , John Steven Tingey , Robert Bruce Wagstaff
IPC分类号： B22D11/049
CPC分类号： B22D11/049 , B22D11/10 , B22D11/18 , B22D11/185 , B22D11/186 , B22D19/10 , B22D41/18
摘要： An exemplary embodiment provides a method of eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting an upright ingot having an upper surface at an intended height. Upon completion of the casting, the lower tip of the spout is maintained below the molten metal near the center of the upper surface. The metal flow through the spout is terminated and a partial shrinkage cavity is allowed to form as metal of the ingot shrinks and contracts. Before the partial cavity exposes the lower tip of the spout, the cavity is preferably over-filled with molten metal, while avoiding spillage of molten metal, and then the flow of metal through the spout is terminated. These steps are repeated until no further contraction of the metal causes any part of the upper surface to contract below the intended ingot height.
摘要翻译： 示例性实施例提供了一种通过直接冷却铸造来消除铸造金属铸锭中的收缩腔的方法。 该方法包括将具有上表面的竖直铸锭铸造在预期高度。 铸造完成时，喷嘴的下端保持在靠近上表面中心的熔融金属的下方。 通过喷口的金属流动被终止，并且允许部分收缩腔形成为金属的锭收缩并收缩。 在部分腔体暴露喷嘴的下端之前，优选地，空腔被熔融金属过度填充，同时避免熔融金属的溢出，然后终止通过喷嘴的金属流。 重复这些步骤，直到金属的进一步收缩导致上表面的任何部分收缩到低于预期的锭高度。
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公开(公告)号：US08418748B2
公开(公告)日：2013-04-16
申请号：US12931724
申请日：2011-02-09
CPC分类号： B22D11/007 , B22D2/006 , B22D11/182 , B22D11/202 , B22D11/22
摘要： An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.
摘要翻译： 本发明的示例性实施例提供了一种直接冷却铸造复合金属锭的方法。 该方法包括顺序地浇铸两个或更多个金属层以通过将熔融金属流供应到直接冷却铸造设备的铸模内的两个或多个铸造室中而形成复合锭。 一个或多个熔融金属流的入口温度在与流入的流化室的入口相邻的位置处被监测，并且将入口温度与流的预定设定温度进行比较，以确定是否存在 区别。 然后调整影响进入或流入铸造室内的熔融金属温度（例如铸造速度）的铸造变量，该量基于比较温度的差值，以消除由入口温度和设定温度的差引起的不利铸造效应 。 优选地，选择使所监视的温度接近设定温度的调节。 另一示例性实施例提供了用于该方法的操作的设备。
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公开(公告)号：US08365807B2
公开(公告)日：2013-02-05
申请号：US13421350
申请日：2012-03-15
IPC分类号： B22D11/049 , B22D11/124
CPC分类号： B22D11/049
摘要： The invention provides a method of reducing butt curl during DC casting of a metal ingot. The ingot is cast in at least two stages, including an initial casting stage and then a steady-state casting stage carried out at higher casting speed. The emerging ingot is cooled by directing a liquid coolant onto its outer surface. During the first casting stage, the liquid coolant is directed in the form of at least two streams, including a constant first stream in the form of a series of first jets, and an intermittent second stream in the form of a series of second jets. The first and second jets impact the outer surface at locations spaced from each other peripherally and/or longitudinally of the ingot. Both the first and second streams experience film boiling when they contact the ingot. The invention includes apparatus for the method.
摘要翻译： 本发明提供了在金属锭的直流铸造期间减少对接卷曲的方法。 铸锭至少铸造两个阶段，包括初始铸造阶段，然后以更高的铸造速度进行稳态铸造阶段。 通过将液体冷却剂引导到其外表面来冷却出现的锭。 在第一铸造阶段期间，液体冷却剂以至少两个流的形式被引导，包括一系列第一射流形式的恒定的第一流和一系列第二射流形式的间歇的第二流。 第一和第二射流在外周和/或纵向彼此间隔开的位置冲击外表面。 当第一和第二个流体接触锭时，它们都经历电影沸腾。 本发明包括该方法的装置。
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公开(公告)号：US20120241118A1
公开(公告)日：2012-09-27
申请号：US13421350
申请日：2012-03-15
CPC分类号： B22D11/049
摘要： The invention provides a method of reducing butt curl during DC casting of a metal ingot. The ingot is cast in at least two stages, including an initial casting stage and then a steady-state casting stage carried out at higher casting speed. The emerging ingot is cooled by directing a liquid coolant onto its outer surface. During the first casting stage, the liquid coolant is directed in the form of at least two streams, including a constant first stream in the form of a series of first jets, and an intermittent second stream in the form of a series of second jets. The first and second jets impact the outer surface at locations spaced from each other peripherally and/or longitudinally of the ingot. Both the first and second streams experience film boiling when they contact the ingot. The invention includes apparatus for the method.
摘要翻译： 本发明提供了在金属锭的直流铸造期间减少对接卷曲的方法。 铸锭至少铸造两个阶段，包括初始铸造阶段，然后以更高的铸造速度进行稳态铸造阶段。 通过将液体冷却剂引导到其外表面来冷却出现的锭。 在第一铸造阶段期间，液体冷却剂以至少两个流的形式被引导，包括一系列第一射流形式的恒定的第一流和一系列第二射流形式的间歇的第二流。 第一和第二射流在外周和/或纵向彼此间隔开的位置冲击外表面。 当第一和第二个流体接触锭时，它们都经历电影沸腾。 本发明包括该方法的装置。
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公开(公告)号：US20120160442A1
公开(公告)日：2012-06-28
申请号：US13333469
申请日：2011-12-21
申请人： Mark Anderson , Todd F. Bischoff , James Boorman , Wayne J. Fenton , David Sinden , John Steven Tingey , Robert Bruce Wagstaff
发明人： Mark Anderson , Todd F. Bischoff , James Boorman , Wayne J. Fenton , David Sinden , John Steven Tingey , Robert Bruce Wagstaff
CPC分类号： B22D11/049 , B22D11/10 , B22D11/18 , B22D11/185 , B22D11/186 , B22D19/10 , B22D41/18
摘要： An exemplary embodiment provides a method of eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting an upright ingot having an upper surface at an intended height. Upon completion of the casting, the lower tip of the spout is maintained below the molten metal near the center of the upper surface. The metal flow through the spout is terminated and a partial shrinkage cavity is allowed to form as metal of the ingot shrinks and contracts. Before the partial cavity exposes the lower tip of the spout, the cavity is preferably over-filled with molten metal, while avoiding spillage of molten metal, and then the flow of metal through the spout is terminated. These steps are repeated until no further contraction of the metal causes any part of the upper surface to contract below the intended ingot height.
摘要翻译： 示例性实施例提供了一种通过直接冷却铸造来消除铸造金属铸锭中的收缩腔的方法。 该方法包括将具有上表面的竖直铸锭铸造在预期高度。 铸造完成时，喷嘴的下端保持在靠近上表面中心的熔融金属的下方。 通过喷口的金属流动被终止，并且由于金属的金属收缩而收缩，允许形成部分收缩腔。 在部分腔体暴露喷嘴的下端之前，优选地，空腔被熔融金属过度填充，同时避免熔融金属的溢出，然后终止通过喷嘴的金属流。 重复这些步骤，直到金属的进一步收缩导致上表面的任何部分收缩到低于预期的锭高度。
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公开(公告)号：US20110198050A1
公开(公告)日：2011-08-18
申请号：US12931724
申请日：2011-02-09
CPC分类号： B22D11/007 , B22D2/006 , B22D11/182 , B22D11/202 , B22D11/22
摘要： An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.
摘要翻译： 本发明的示例性实施例提供了一种直接冷却铸造复合金属锭的方法。 该方法包括顺序地浇铸两个或更多个金属层以通过将熔融金属流供应到直接冷却铸造设备的铸模内的两个或多个铸造室中而形成复合锭。 一个或多个熔融金属流的入口温度在与流入的流化室的入口相邻的位置处被监测，并且将入口温度与流的预定设定温度进行比较，以确定是否存在 区别。 然后调整影响进入或流入铸造室内的熔融金属温度（例如铸造速度）的铸造变量，该量基于比较温度的差值，以消除由入口温度和设定温度的差引起的不利铸造效应 。 优选地，选择使所监视的温度接近设定温度的调节。 另一示例性实施例提供了用于该方法的操作的设备。
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公开(公告)号：US5850870A
公开(公告)日：1998-12-22
申请号：US8761
申请日：1998-01-19
IPC分类号： B22D11/103 , B22D11/18 , B22D11/10
CPC分类号： B22D11/103 , B22D11/181
摘要： Balance beams are pivotally mounted on and crosswise of an elongated rack extending parallel to a trough over a series of mold cavities, valve closure devices are suspended from corresponding first end portions of the beams to throttle valve openings in the trough, float sensors are suspended from points on the opposing second end portions of the beams to contact the surfaces of molten metal columns brought to a state of equilibrium in the cavities, and the rack is elevated in relation to the cavities as molten metal is delivered to the trough, so that as the first end portions impose a desired value on the rate at which the surfaces escalate up the axes of the cavities, the second end portions elevate the suspension points for the sensors at a rate commensurate therewith, to assure that the input signals transmitted to the first portions through the fulcra for the beams, are consistent with the imposed value. Alternatively, non-contact sensors are suspended from the rack, and the input signals thereof are transmitted through an electronic controller to balance beams on the trough, either electrically to motor driven linear actuators for the balance beams, or through a device which converts the signals to pneumatic signals for pneumatically driven actuators for the beams. The desired value is imposed on the actuators from the controller, and the rack is elevated to raise the signal generation points at a rate commensurate therewith; or the opposite is done.
摘要翻译： 平衡梁可枢转地安装在平行于槽的一系列模腔上延伸的细长齿条的横向上，阀闭合装置从梁的对应的第一端部悬挂以节流槽中的阀门开口，浮动传感器从 在与熔融金属柱的表面接触的相对的第二端部分上的点在空腔中处于平衡状态，并且当熔融金属被输送到槽时，齿条相对于空腔升高，使得如 第一端部对表面升高空腔的轴线的速率施加期望值，第二端部以与其相应的速率提升传感器的悬挂点，以确保传输到第一端的输入信号 通过用于梁的支点的部分与施加的值一致。 或者，非接触传感器从机架悬挂，并且其输入信号通过电子控制器传输，以平衡槽上的梁，或者电动地平衡用于平衡梁的马达驱动的线性致动器，或通过转换信号的装置 用于用于横梁的气动致动器的气动信号。 对来自控制器的致动器施加期望值，并且升高机架以使信号生成点以与其相应的速率升高; 或相反的做法。
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公开(公告)号：US5709260A
公开(公告)日：1998-01-20
申请号：US517701
申请日：1995-08-22
IPC分类号： B22D11/103 , B22D11/18 , B22D11/10
CPC分类号： B22D11/103 , B22D11/181
摘要： To control the admission of molten metal to a series of mold cavities through a series of valve openings in the downspouts of a trough thereabove, an elongated rack is arranged parallel to the trough, a set of balance beams is pivotally mounted on the rack, a set of valve closure devices is suspended from corresponding first end portions of the beams for throttling the openings, and a set of float sensors is suspended from points on the opposing second end portions of the beams for contact with the surfaces of the molten metal in the cavities. After an initial phase of the fill operation in which the surfaces of the molten metal reach a state of equilibrium at an intermediate elevation above the tops of the blocks, the rack is elevated in relation to the series of cavities so that as the first end portions of the beams impose a desired value on the rate at which the surfaces escalate up the vertical axes of the cavities, the second end portions raise the elevation of the suspension points for the sensors at a rate commensurate therewith so that the input signals transmitted to the first portions from the second portions through the fulcra for the beams, are consistent with the imposed value. In other versions using non-contact sensors hung from the rack, the input signals are developed electrically and transmitted through an electronic controller which either transmits them electrically to motor driven linear actuators for a set of balance beams on the trough from which the valve closure devices for the openings are suspended, or through a device which converts the electrical signals to pneumatic signals for pneumatically driven actuators for the set of trough mounted beams. In either of the latter versions, the desired value may be imposed on the actuators from the controller, and the rack elevated to raise the signal generation points of the sensors at a rate commensurate therewith, or the opposite may be done, in either case to assure that the imposed value and the input signals transmitted to the actuators for the balance beams are consistent with one another.
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