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51. 发明公开

EP0103394A1 Methods of investigating ground faults particularly on induction furnaces 失效
标题翻译：特别是在感应炉上研究接地故障的方法
公开(公告)号：EP0103394A1
公开(公告)日：1984-03-21
申请号：EP83304560.2
申请日：1983-08-05
申请人： Smalley, Daniel Scott
发明人： Smalley, Daniel Scott
IPC分类号： G01R31/08 , H05B6/28
CPC分类号： G01R31/025 , G01R31/08 , H05B6/28
摘要： @ Methods of investigation ground faults, particularly on coreless induction furnaces, using a computerised monitor which includes a first potential transformer connected across the coil and second potential transformer connected between one end of the coil and an electric ground. The relative location of a ground fault along the length of the coil is determined by computing the ratio of the transformer outputs. The monitor further includes a first current transformer in the coil power line and a second current transformer with melt bath ground. Internal ground faults are detected by computing the phase difference between the coil and ground currents. A graphic representation of the furnace is also generated to illustrate the location of the ground fault with respect to turns and yokes of the coil. The monitor also calculates liner wear by determining melt bath volume, which is inversely proportional to melt bath resistance, which in turn is proportional to coil resistance. If the furnace being monitored is provided with more than one coil, a differential current transformer is connected across each coil to detect the fault grounded coil when the transformer associated with the faulted coil exhibits a substantially non-zero output.
摘要翻译： @调查接地故障的方法，特别是在无芯感应炉上，使用计算机监视器，包括连接在线圈两端的第一个电压互感器和连接在线圈一端和电气地之间的第二个电压互感器。通过计算变压器输出的比率来确定接地故障沿线圈长度的相对位置。监视器还包括线圈电力线中的第一电流互感器和熔池浴接地的第二电流互感器。通过计算线圈和接地电流之间的相位差来检测内部接地故障。还会生成熔炉的图形表示，以说明接地故障相对于线圈的线圈和磁轭的位置。监测器还通过确定熔体浴体积来计算衬管磨损，该熔体体积与熔体浴电阻成反比，其又与线圈电阻成正比。如果被监测的炉子设有多于一个线圈，则当与故障线圈相关联的变压器呈现基本上非零输出时，在每个线圈上连接差动电流互感器以检测故障接地线圈。

52. 发明申请

US20220183118A1 Method of Cooling Electric Induction Melting and Holding Furnaces for Reactive Metals and Alloys 有权
公开(公告)号：US20220183118A1
公开(公告)日：2022-06-09
申请号：US17680519
申请日：2022-02-25
申请人： Inductotherm Corp.
发明人： Satyen N. PRABHU , Joseph T. BELSH , Peter ARUANNO
IPC分类号： H05B6/26 , H05B6/28 , H05B6/36 , H05B6/42
摘要： A method of cooling an electric induction furnace for melting and holding a reactive metal or alloy is provided where the electric induction furnace has an upper furnace vessel and an induction coil in a modular inductor furnace is positioned below the upper furnace vessel with a melt-containing vessel positioned inside the induction coil with a gap between the outside surface of the melt-containing vessel and the inside surface of the induction coil that is used to circulate a cooling fluid for cooling the melt-containing vessel to inhibit leakage of the reactive metal or alloy melt from the melt-containing vessel. The melt-containing vessel can be integrated with a cooling system for cooling the melt-containing vessel. Modularity of the melt-containing vessel, induction coil and cooling system facilitates servicing of the modular inductor furnace without disassembly of the entire electric induction furnace.

53. 发明授权

US10907269B2 Multi-layer susceptor design for magnetic flux shielding in directional solidification furnaces 有权
公开(公告)号：US10907269B2
公开(公告)日：2021-02-02
申请号：US16913813
申请日：2020-06-26
申请人： Raytheon Technologies Corporation
发明人： Joseph V. Mantese , Ryan C. Breneman , Thomas Anthony Rebbecchi , Andrew Boyne , John Joseph Marcin , Dustin W. Davis , David Ulrich Furrer , James Tilsley Auxier
IPC分类号： B22D27/02 , B22D27/04 , F27B14/14 , C30B11/00 , H05B6/28 , H05B6/36 , H05B6/10 , F27B14/06 , F27D11/06
摘要： An induction furnace assembly comprising a chamber having a mold; a primary inductive coil coupled to the chamber; a layered susceptor comprising at least two layers of magnetic field attenuating material surrounding the chamber between the primary inductive coil and the mold to nullify the electromagnetic field in the hot zone of the furnace chamber.

54. 发明授权

US10598439B2 Electric induction furnace lining wear detection system 有权
公开(公告)号：US10598439B2
公开(公告)日：2020-03-24
申请号：US15218787
申请日：2016-07-25
申请人： Inductotherm Corp.
发明人： Satyen N. Prabhu , Thomas W. Shorter , Ted Haines , Edward J. Bell
IPC分类号： H05B6/02 , H05B6/24 , F27B14/06 , F27D21/00 , H05B6/06 , F27D11/06 , F27B14/20 , H05B6/36 , H05B6/28
摘要： An electric induction furnace for heating and melting electrically conductive materials is provided with a lining wear detection system that can detect replaceable furnace lining wear when the furnace is properly operated and maintained. In some embodiments of the invention the lining wear detection system utilizes an electrically conductive wire assemblage embedded in a wire assemblage refractory disposed between the replaceable lining and the furnace's induction coil.

55. 发明授权

US09706606B2 Induction furnace and system for locating a ground fault therein 有权
公开(公告)号：US09706606B2
公开(公告)日：2017-07-11
申请号：US14440476
申请日：2013-11-07
申请人： ABP INDUCTION SYSTEMS GMBH
发明人： Ingolf Temme , Daniel Green
IPC分类号： H05B6/06 , H05B6/28 , G01R31/02 , F27D21/00
CPC分类号： H05B6/28 , F27D2021/0057 , G01R31/025 , H05B6/067
摘要： A method and an apparatus for detecting a ground fault in an induction furnace as well as an induction furnace are described. When a ground fault is detected by means of the ground-fault detector the ground fault is localized. By doing this it is determined if the ground fault is caused by a failure of the refractory lining or by other reasons. If the ground fault is caused by other reasons it is ascertained if it is caused by a defective magnetic yoke insulation. Furthermore, it can be ascertained which magnetic yoke of the induction furnace causes a ground fault. In this manner the induction furnace can be operated with improved security and smaller expense.

56. 发明授权

US09693399B1 Detection of melt adjacent to the exterior of the bushing in an induction channel furnace 有权
公开(公告)号：US09693399B1
公开(公告)日：2017-06-27
申请号：US15347049
申请日：2016-11-09
申请人： Inductotherm Corp.
发明人： Bernard M. Raffner
IPC分类号： H05B6/28 , H05B6/06 , G01R27/08 , F27D21/00
CPC分类号： H05B6/28 , F27D2021/0085 , G01K7/30 , G01R27/08 , H05B6/067 , H05B6/20
摘要： A method is provided for the detection of melt adjacent to the exterior of a bushing in an induction channel furnace. An electrically conductive mesh is disposed around the exterior surface of the bushing facing a refractory that separates the bushing from a channel in which molten metal (melt) flows. The mesh is connected to a grounded voltage source so that when an electrically conductive melt at ground potential in the channel breaches the refractory and penetrates the electrically conductive mesh an electrical circuit is completed through the melt and the grounded voltage source.

57. 发明申请

US20160242239A1 ELECTRIC INDUCTION MELTING AND HOLDING FURNACES FOR REACTIVE METALS AND ALLOYS 审中-公开
标题翻译：电动感应熔炼和保护用于反应性金属和合金的炉
公开(公告)号：US20160242239A1
公开(公告)日：2016-08-18
申请号：US14703688
申请日：2015-05-04
申请人： INDUCTOTHERM CORP.
发明人： Satyen N. PRABHU , Joseph T. BELSH , Peter ARUANNO
IPC分类号： H05B6/26 , H05B6/36 , H05B6/42 , H05B6/28
CPC分类号： H05B6/26 , H05B6/28 , H05B6/367 , H05B6/42
摘要： An electric induction furnace for melting and holding a reactive metal or alloy is provided with an upper furnace vessel, an induction coil positioned below the upper furnace vessel, and a melt-containing vessel positioned inside the induction coil with a gap between the outside surface of the melt-containing vessel and the inside surface of the induction coil that can be used to circulate a cooling fluid for cooling the wall of the melt-containing vessel to inhibit leakage of the reactive metal or alloy melt from the vessel. The melt-containing vessel can be integrated with a cooling system for cooling the melt-containing vessel. The melt-containing vessel, induction coil and cooling system can be provided as modular components to facilitate servicing of the melt-containing vessel, the induction coil and the cooling system.
摘要翻译：用于熔化和保持反应性金属或合金的电感应炉设置有上炉容器，位于上炉容器下方的感应线圈和位于感应线圈内部的熔融容器，含熔体的容器和感应线圈的内表面，其可用于循环冷却流体以冷却含熔体容器的壁，以防止反应性金属或合金熔体从容器泄漏。含熔融容器可以与用于冷却含熔体的容器的冷却系统集成。含熔体的容器，感应线圈和冷却系统可以作为模块化部件提供，以便于熔化容器，感应线圈和冷却系统的维修。

58. 发明申请

US20130223471A1 METAL SECTOR HAVING CURVED INNER SURFACE AND COLD CRUCIBLE INDUCTION MELTER HAVING THE SAME 有权
标题翻译：具有弯曲内表面的金属部分和具有该表面的冷致动电感电容器
公开(公告)号：US20130223471A1
公开(公告)日：2013-08-29
申请号：US13883645
申请日：2011-09-26
申请人： Cheon Woo Kim , Deuk Man Kim , Seok Mo Choi , Hyun Jun Jo , Hyun Je Cho , Seung Chul Park , Tae Won Hwang
发明人： Cheon Woo Kim , Deuk Man Kim , Seok Mo Choi , Hyun Jun Jo , Hyun Je Cho , Seung Chul Park , Tae Won Hwang
IPC分类号： H05B6/28
CPC分类号： H05B6/28 , F27B14/061 , F27B14/08 , F27D11/06 , F27D2099/0015 , Y02P10/253
摘要： The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and a side planar portion which connects the inner curved portion to the outer planar portion.
摘要翻译：本发明提供一种金属部件和具有该金属部件的冷坩埚感应胶机。冷坩埚感应胶机包括由绝缘体绝缘的多个金属部分形成的壁。每个金属部分包括形成壁的内表面并且相对于壁向内凸起的内弯曲部分，形成壁的外表面的外平面部分和将内弯曲部分连接到外平面部分。

59. 发明授权

US6148018A Heat flow sensing system for an induction furnace 失效
标题翻译：感应炉热流感测系统
公开(公告)号：US6148018A
公开(公告)日：2000-11-14
申请号：US960397
申请日：1997-10-29
申请人： Jose A. Garcia , David A. Lazor , Jack L. McMillin
发明人： Jose A. Garcia , David A. Lazor , Jack L. McMillin
IPC分类号： H05B6/06 , H05B6/28
CPC分类号： H05B6/28 , H05B6/067
摘要： An induction melting furnace includes a detection system for sensing metal penetration into a wall of the furnace depending upon detecting heat flow from the hearth to the furnace. The furnace includes a crucible including a refractory lining for holding molten metal, a coil for inductively heating the molten metal, and a power supply for supplying energy to the coil and the detection system. An electrode system is interposed between the coil and the lining comprising a sensing mat housing conductors receiving a test signal from the power supply, wherein the sensing mat includes a temperature sensitive binder that varies conductivity between the conductors in response to heat penetration through the lining. The sensing mat is preferably comprised of flexible phillosilicate mica for enhanced thermal conduction and the binder comprises an organic resin compound which carburizes at a predetermined elevated temperature.
摘要翻译：感应熔炼炉包括检测系统，用于检测金属渗透到炉壁中，这取决于检测从炉底到炉的热流。该炉包括坩埚，其包括用于保持熔融金属的耐火衬层，用于感应加热熔融金属的线圈，以及用于向线圈和检测系统供电的电源。电极系统插入在线圈和衬里之间，其包括感测垫，其容纳导体，其接收来自电源的测试信号，其中感测垫包括温度敏感粘合剂，其响应于通过衬里的热穿透而改变导体之间的导电性。传感垫优选由用于增强热传导的柔性硅酸盐云母组成，并且粘合剂包括在预定高温下渗碳的有机树脂化合物。

60. 发明授权

US2184741A High frequency smelting furnace 失效
标题翻译：高频冶炼炉
公开(公告)号：US2184741A
公开(公告)日：1939-12-26
申请号：US24093038
申请日：1938-11-17
申请人： KOHLE UND EISENFORSCHUNG GMBH
发明人： FRITZ HARTMANN
IPC分类号： H05B6/28
CPC分类号： H05B6/28

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