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1. 发明授权

US4674557A Regulation of the thickness of electromagnetically cast thin strip 失效
标题翻译：电磁铸造薄带厚度的调节
公开(公告)号：US4674557A
公开(公告)日：1987-06-23
申请号：US854933
申请日：1986-04-23
申请人： Gerhart K. Gaule , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： Gerhart K. Gaule , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： A process for electromagnetically casting molten material into a thin strip having a substantially constant thickness. An inductor is provided for electromagnetically shaping the molten material. The material is electromagnetically shaped into a strip having a desired thickness. Variations in the thickness of the molten material are automatically reduced during the shaping step by selecting the frequency of the current applied to the inductor so that the thickness of the strip is about 1.8 to about 2.6 current penetration depth.
摘要翻译：将熔融材料电磁铸造成具有基本恒定厚度的薄带的方法。提供用于对熔融材料进行电磁成形的电感器。该材料被电磁成形为具有所需厚度的条带。通过选择施加到电感器的电流的频率，在成形步骤期间，熔融材料厚度的变化自动减小，使得带材的厚度为约1.8至约2.6电流穿透深度。

2. 发明授权

US4470447A Head top surface measurement utilizing screen parameters in electromagnetic casting 失效
标题翻译：使用电磁铸造中的屏幕参数进行头顶表面测量
公开(公告)号：US4470447A
公开(公告)日：1984-09-11
申请号：US374545
申请日：1982-05-03
申请人： Peter J. Kindlmann , Gary L. Ungarean , John C. Yarwood , Derek E. Tyler
发明人： Peter J. Kindlmann , Gary L. Ungarean , John C. Yarwood , Derek E. Tyler
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field. The apparatus includes an inductor and a non-magnetic shield. Changes in the location or the location of the top surface of the molten metal head are continuously displayed during the casting run by monitoring electrical parameters of the electromagnetic casting system including at least one electrical parameter of the non-magnetic shield.
摘要翻译：一种用于铸造金属的设备和方法，其中熔融金属通过施加电磁场而被包含并形成为期望的形状。该装置包括电感器和非磁性屏蔽件。通过监测包括非磁性屏蔽的至少一个电参数的电磁铸造系统的电参数，在铸造运行期间连续地显示熔融金属头的顶表面的位置或位置的变化。

3. 发明授权

US4495983A Determination of liquid-solid interface and head in electromagnetic casting 失效
标题翻译：电磁铸造液固界面和头部的测定
公开(公告)号：US4495983A
公开(公告)日：1985-01-29
申请号：US465239
申请日：1983-02-10
申请人： Peter J. Kindlmann , Gary L. Ungarean , John C. Yarwood , Derek E. Tyler
发明人： Peter J. Kindlmann , Gary L. Ungarean , John C. Yarwood , Derek E. Tyler
IPC分类号： B22D11/01 , B22D11/16 , B22D27/02
CPC分类号： B22D11/16 , B22D11/015
摘要： An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field established by an inductor. The height of the liquid metal head, the location of the liquid-solid interface at the periphery of the forming ingot, and/or variations in the values of these parameters is displayed during the casting run by a system which monitors the in-phase component of the voltage across the inductor to determine variations in the total equivalent series resistance of the electromagnetic casting system as seen by the inductor.
摘要翻译：一种用于铸造金属的设备和方法，其中通过施加由电感器建立的电磁场，熔融金属被包含并形成为期望的形状。液体金属头的高度，成形锭的周边处的液固界面的位置和/或这些参数的值的变化在铸造运行期间由监控同相部件的系统显示的电感上的电压，以确定电感器所看到的电磁铸造系统的总等效串联电阻的变化。

4. 发明授权

US4450890A Process and apparatus for electromagnetic casting of multiple strands having individual head control 失效
标题翻译：具有单独头部控制的多股线的电磁铸造的工艺和装置
公开(公告)号：US4450890A
公开(公告)日：1984-05-29
申请号：US294262
申请日：1981-08-19
申请人： John C. Yarwood , Gary L. Ungarean , Peter J. Kindlmann , Derek E. Tyler
发明人： John C. Yarwood , Gary L. Ungarean , Peter J. Kindlmann , Derek E. Tyler
IPC分类号： B22D11/01 , B22D11/14 , B22D11/16 , B22D27/02
CPC分类号： B22D11/16 , B22D11/015 , B22D11/147
摘要： A multi-strand apparatus and process for casting molten material into at least two ingots of desired shape. Structure is provided for receiving and electromagnetically forming the molten material into ingots of desired shape. Each of the receiving and forming structures includes an inductor for applying an electromagnetic force field to the molten material. When the inductor is in operation, it is spaced from the molten material by a gap extending from the surface of the molten material to the opposing surface of the inductor. The improvement comprises a device for distributing a common alternating current to the inductors to generate the magnetic fields. A device is provided for minimizing variations in the gaps during operation of the casting apparatus. A feedback control is operatively associated with the minimizing variation device regulating the distribution device to generate substantially constant alternating current whereby changes in the force field generated by one of the inductors does not substantially effect the force field generated by another of the inductors.
摘要翻译：一种用于将熔融材料铸造成至少两个所需形状的锭料的多股装置和方法。提供了用于接收和电磁地将熔融材料形成为所需形状的锭的结构。每个接收和形成结构包括用于向熔融材料施加电磁力场的电感器。当电感器工作时，它与熔融材料间隔开一个间隙，从熔融材料的表面延伸到电感器的相对表面。该改进包括用于将公共交流电流分配到电感器以产生磁场的装置。提供了一种用于最小化铸造装置运行期间间隙变化的装置。反馈控制可操作地与调节分配装置的变化装置最小化以产生基本恒定的交流电流，由电感器之一产生的力场的变化基本上不影响另一个电感器产生的力场。

5. 发明授权

US4321959A Electromagnetic casting shape control by differential screening and inductor contouring 失效
标题翻译：电磁铸造形状控制通过差分筛选和电感轮廓
公开(公告)号：US4321959A
公开(公告)日：1982-03-30
申请号：US96763
申请日：1979-11-23
申请人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler , Gerhart K. Gaule
发明人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler , Gerhart K. Gaule
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： A method and apparatus for electromagnetic casting of metal and alloy ingots of desired shape having portions of small radius of curvature. A modified shield is provided which provides for a reduction of the electromagnetic field intensity at the corners of the forming ingot by increasing local screening of the field at the corners. Increased local screening at the corners is achieved by locally increasing shield depth, by providing for deeper displacement of the shield, by changing the shield section, or by changing the shield orientation. Also disclosed is a modified inductor which is shaped so as to be located at a greater distance from the portions of small radius of curvature of the ingots than from portions of the ingots adjacent to the portions of small radius of curvature. The modified shield may be combined with the modified inductor and/or with a coolant manifold to simultaneously modify and control coolant application elevation such that the elevation is a minimum at the corners of the ingot.
摘要翻译：用于电磁铸造具有小曲率半径的所需形状的金属和合金锭的方法和装置。提供了一种改进的屏蔽，其通过增加角部处的场的局部屏蔽来提供成形锭的角部处的电磁场强度的降低。通过局部增加屏蔽深度，通过提供屏蔽层的更深的位移，通过改变屏蔽部分，或通过改变屏蔽方向来实现角部增加的局部屏蔽。还公开了一种改进的电感器，其被成形为位于距锭子的小曲率半部分的距离远大于与小曲率半部分相邻的锭块的部分。改进的屏蔽件可以与改进的电感器和/或与冷却剂歧管组合，以同时修改和控制冷却剂应用高度，使得高度在晶锭的角落处是最小的。

6. 发明授权

US4319625A Electromagnetic casting process utilizing an active transformer-driven copper shield 失效
标题翻译：电磁铸造工艺利用有源变压器驱动的铜屏蔽
公开(公告)号：US4319625A
公开(公告)日：1982-03-16
申请号：US231197
申请日：1981-02-04
申请人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： An electromagnetic casting process and apparatus utilizing an active transformer-driven copper shield. The shield is actively driven with a voltage out of phase with the voltage in the containment inductor with the result that a bucking current is produced in the shield which is out of phase with the current induced in the shield by the inductor. An active transformer-driven duplex variable impedance shield is also disclosed.
摘要翻译：一种使用有源变压器驱动铜屏蔽的电磁铸造工艺和装置。屏蔽被主动驱动，其电压与容纳电感器中的电压异相，结果是在屏蔽中产生与电感器在屏蔽中感应的电流异相的降压电流。还公开了一种有源变压器驱动的双相可变阻抗屏蔽。

7. 发明授权

US4606397A Apparatus and process for electro-magnetically forming a material into a desired thin strip shape 失效
标题翻译：将材料电磁成形为所需薄条形状的装置和方法
公开(公告)号：US4606397A
公开(公告)日：1986-08-19
申请号：US625288
申请日：1984-06-27
申请人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： An apparatus and process for electromagnetically forming a material into a desired thin strip shape. The apparatus comprises a first portion for electromagnetically containing and forming the material in molten form into a cross-sectional shape substantially the same as the desired thin strip shape. A second portion receives the molten material in the thin strip shape from the first portion. In addition, the second portion reduces the distortion in the cross-sectional shape due to surface tension. The second portion includes a device for providing an electromagnetic field having a reduced strength as compared to the strength of an electromagnetic field in the first portion. The electromagnetic field may be reduced in strength by providing an inductor having hollow inner surfaces facing the molten material so as to form substantially straight vertical surfaces in the molten material. In another embodiment, a shield is provided between the inductor and the molten metal to selectively reduce the strength of the electromagnetic field.
摘要翻译：一种用于将材料电磁地形成所需薄带形状的装置和方法。该装置包括第一部分，用于将熔融形式的材料电磁地容纳并形成为与期望的细条形状基本上相同的横截面形状。第二部分从第一部分接收薄带状的熔融材料。此外，第二部分由于表面张力而减小了横截面形状的变形。第二部分包括用于提供与第一部分中的电磁场的强度相比具有降低的强度的电磁场的装置。通过提供具有面向熔融材料的中空内表面的电感器，以便在熔融材料中形成基本上直的垂直表面，电磁场可以降低强度。在另一个实施例中，在电感器和熔融金属之间提供屏蔽以选择性地降低电磁场的强度。

8. 发明授权

US4495981A Process and apparatus for synchronized electromagnetic casting of multiple strands 失效
标题翻译：多股同步电磁铸造的工艺和装置
公开(公告)号：US4495981A
公开(公告)日：1985-01-29
申请号：US317373
申请日：1981-11-02
申请人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/16 , B22D11/01 , B22D11/10 , B22D11/115 , B22D27/02
CPC分类号： B22D11/015
摘要： A multi-strand apparatus and process is provided for casting molten materials into ingots of desired shape. The apparatus comprises a plurality of devices for receiving and electromagnetically forming the molten material into desired shape. Each of the receiving and forming devices includes an inductor for applying a magnetic force field to the molten material. The inductor in operation is spaced from the molten material by a gap extending from the surface of the molten material to the opposing surface of the inductor. An alternating current applying device sends current to its associated inductor to generate the magnetic force field. Circuitry associated with each of the inductors senses variations in their respective gaps. The improvement comprises a pulse width modulating circuit associated with said gap variation sensing circuitry being connected to the alternating current applying device for controlling the application of alternating current to the inductor. A device is connected to the pulse width modulating circuit for synchronizing turn-on of all of the current applying devices whereby beat frequencies due to interaction between the plurality of inductors are substantially eliminated.
摘要翻译：提供了一种多股装置和方法，用于将熔融材料浇铸成所需形状的锭料。该装置包括用于接收和电磁地将熔融材料形成所需形状的多个装置。每个接收和成形装置包括用于向熔融材料施加磁力场的电感器。操作中的电感器通过从熔融材料的表面延伸到电感器的相对表面的间隙与熔融材料间隔开。交流施加装置向其相关联的电感器发送电流以产生磁力场。与每个电感器相关联的电路感测它们各自间隙中的变化。该改进包括与所述间隙变化感测电路相关联的脉宽调制电路，其连接到用于控制对电感器的交流电的施加的交流施加装置。一个装置连接到脉冲宽度调制电路，用于同步所有电流施加装置的导通，从而基本上消除了由于多个电感器之间的相互作用引起的拍频。

9. 发明授权

US4415017A Control of liquid-solid interface in electromagnetic casting 失效
标题翻译：电磁铸造液固界面控制
公开(公告)号：US4415017A
公开(公告)日：1983-11-15
申请号：US277759
申请日：1981-06-26
申请人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/04 , B22D11/01 , B22D11/041 , B22D11/049 , B22D11/18 , B22D11/16 , B22D11/00
CPC分类号： B22D11/185 , B22D11/015
摘要： An electromagnetic casting system for casting materials comprising the apparatus and process for electromagnetically containing and forming molten material during a casting run into a desired shape. During the casting run, a liquid-solid interface defines molten material head and solid material portions of the casting. The electromagnetic containing and forming device includes an inductor applying a magnetic field to the molten material. The magnetic field defines a containment zone for the molten material. An alternating current is applied to the inductor to generate the magnetic field. The improvement comprises controlling the location of the liquid-solid interface in the containment zone. The location of the liquid-solid interface along the periphery of the casting is monitored. In response to the monitored location, in a first mode of operation when the liquid-solid interface varies from the desired set point less than a desired percentage of the inductor length, only the coolant addition is varied to keep the location of the liquid-solid interface substantially constant. In a second mode of operation when the liquid-solid interface varies from the desired set point more than the desired percentage, both the flow rate of molten metal and the coolant addition are changed to return the location of the liquid-solid interface to the desired set point. Upon return of the liquid-solid interface to the set point, cycling back to the first mode of operation occurs.
摘要翻译：一种用于铸造材料的电磁铸造系统，包括用于在铸造期间电磁地容纳和形成熔融材料以形成期望形状的装置和工艺。在铸造运行期间，液体 - 固体界面限定了铸件的熔融材料头部和固体材料部分。电磁容纳和形成装置包括向熔融材料施加磁场的电感器。磁场限定熔融材料的容纳区域。对电感器施加交流电以产生磁场。改进之处在于控制容纳区中的液 - 固界面的位置。监测液体 - 固体界面沿铸件周边的位置。响应于监测的位置，当液 - 固界面从小于电感器长度的期望百分比的期望设定点变化时的第一操作模式中，仅改变冷却剂添加量以保持液固体的位置界面基本恒定。在第二种操作模式中，当液 - 固界面从期望的设定点变化到超过所需百分比时，熔融金属的流速和冷却剂添加都被改变，以将液固界面的位置返回到所需的设定点。当液 - 固界面返回到设定点时，循环回到第一操作模式。

10. 发明授权

US4285387A Transformer-driven shield for electromagnetic casting 失效
标题翻译：用于电磁铸造的变压器驱动屏蔽
公开(公告)号：US4285387A
公开(公告)日：1981-08-25
申请号：US111485
申请日：1980-01-14
申请人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
发明人： Peter J. Kindlmann , John C. Yarwood , Gary L. Ungarean , Derek E. Tyler
IPC分类号： B22D11/01 , B22D27/02
CPC分类号： B22D11/015
摘要： An electromagnetic casting process and apparatus utilizing an active transformer-driven copper shield. The shield is actively driven with a voltage out of phase with the voltage in the containment inductor with the result that a bucking current is produced in the shield which is out of phase with the current induced in the shield by the inductor. An active transformer-driven duplex variable impedance shield is also disclosed.
摘要翻译：一种使用有源变压器驱动铜屏蔽的电磁铸造工艺和装置。屏蔽被主动驱动，其电压与容纳电感器中的电压异相，结果是在屏蔽中产生与电感器在屏蔽中感应的电流异相的降压电流。还公开了一种有源变压器驱动的双相可变阻抗屏蔽。

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