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1.发明申请公开(公告)号：US20140305261A1
公开(公告)日：2014-10-16
申请号：US14249028
申请日：2014-04-09
CPC分类号： F27D19/00 , C21C5/5211 , C21C2005/5276 , C21C2005/5288 , C22B4/08 , F27B3/085 , F27B3/28 , F27D27/00 , F27D2019/0003 , F27D2019/0006 , Y02P10/216
摘要： A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer.
摘要翻译： 一种用于控制用于熔化金属的电弧炉中的熔化和精炼过程的方法和装置，其中电弧炉包括熔融和固体金属以及在熔融金属表面上的炉渣层，其中电磁搅拌器设置用于 搅拌熔融金属。 该方法包括在时间点计算/确定熔融和固体金属的质量，其中所述计算基于熔融和固体金属的初始值，供应到电弧炉的电弧功率，以及熔融和固体金属的温度 固体金属，基于计算出的/确定的质量确定搅拌功率，并将确定的搅拌力提供给电磁搅拌器。
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2.发明授权公开(公告)号：US08876934B2
公开(公告)日：2014-11-04
申请号：US13827033
申请日：2013-03-14
申请人： Jan-Erik Eriksson , Mohamed Ali Rahmani , Ola Widlund , Olof Hjortstam , Rebei Bel Fdhila , Shiva Sander-Tavallaey , Ulf Sand , Xiaojing Zhang , Tord Kroon
发明人： Jan-Erik Eriksson , Mohamed Ali Rahmani , Ola Widlund , Olof Hjortstam , Rebei Bel Fdhila , Shiva Sander-Tavallaey , Ulf Sand , Xiaojing Zhang , Tord Kroon
CPC分类号： B01F13/0809 , C21C5/52 , C21C7/00 , F27B3/10 , F27D27/00 , Y02P10/216
摘要： An apparatus for electromagnetic stirring of the steel melt in an electrical arc furnace includes two electromagnetic stirrer units, a current supply, and a control unit. The two stirrers are mounted on an outer bottom surface of the electrical arc furnace at opposites sides of a central position of the bottom surface, the current supply is operatively connected to the two electromagnetic stirrer units, and the control unit is operatively connected to the current supply to control the operation of the two electromagnetic stirrer units.
摘要翻译： 电弧炉中的熔融电磁搅拌装置包括两个电磁搅拌器单元，电流源和控制单元。 两个搅拌器安装在电弧炉的外底表面上，在底面的中心位置的相对侧，电流供应器可操作地连接到两个电磁搅拌器单元，并且控制单元可操作地连接到电流 供应以控制两个电磁搅拌器单元的操作。
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公开(公告)号：US20140318314A1
公开(公告)日：2014-10-30
申请号：US14323671
申请日：2014-07-03
申请人： Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
发明人： Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
CPC分类号： C22B9/20 , C21B13/12 , C21B2300/04 , C21C5/527 , C21C7/00 , C21C2005/5276 , C21C2005/5288 , C21C2300/06 , F27D27/00 , F27D2019/0003 , Y02P10/216 , Y02P10/286
摘要： A method for melting steel in an electric arc furnace (EAF). A hot heel is provided in the EAF. Metal scrap is loaded into the EAF. The metal scrap is melted in the EAF. The mass of the hot heel in relation to the mass of the metal scrap that is initially beyond the surface of the hot heel is a certain minimum. This minimum is 0.75 times the relation between the heat required to melt the metal scrap beyond the surface of the hot heel and the heat that can be taken from the hot heel without it being solidified when a theoretical heat balance calculation is applied as defined in a formula.
摘要翻译： 一种在电弧炉（EAF）中熔炼钢的方法。 EAF中提供热跟。 金属废料装入EAF。 金属废料在EAF中熔化。 热脚跟的质量相对于最初超过热跟鞋表面的金属废料的质量是一定的最小值。 这个最小值是熔化金属废料超过热跟部表面所需的热量之间的关系的0.75倍，而当热应力的理论热平衡计算应用如 式。
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公开(公告)号：US20140175715A1
公开(公告)日：2014-06-26
申请号：US14192345
申请日：2014-02-27
申请人： Jan-Erik Eriksson , Tord Kroon , Mohamed Ali Rahmani , Ola Widlund , Xiaojing Zhang , Christer Carlsson , Hongliang Yang
发明人： Jan-Erik Eriksson , Tord Kroon , Mohamed Ali Rahmani , Ola Widlund , Xiaojing Zhang , Christer Carlsson , Hongliang Yang
CPC分类号： F27D3/1518 , B22D37/00 , B22D41/08 , C21C5/4653 , F27B3/085 , F27B3/19 , F27D3/1509 , F27D27/00
摘要： A method for reducing vortex formation in molten metal when bottom tapping the molten metal from a metallurgical vessel in a metal making process. The method includes the steps of tapping the molten metal via a tapping hole in the metallurgical vessel, and providing a flow of the molten metal in the metallurgical vessel while tapping via a time-varying electromagnetic field applied to the metallurgical vessel, the flow of the molten metal being such that it constantly moves vortices in the molten metal away from a tapping hole region during the tapping to thereby prevent accumulation of the vortices for vortex formation over the tapping hole. It is also presented an arrangement for carrying out the method.
摘要翻译： 一种用于在金属制造过程中从冶金容器底部冲出熔融金属时减少熔融金属中的涡流形成的方法。 该方法包括以下步骤：通过冶金容器中的攻丝孔攻击熔融金属，并且通过施加到冶金容器上的时变电磁场来提供熔融金属在冶金容器中的流动， 熔融金属使得其在攻丝期间不断地将熔融金属中的涡流从攻丝孔区域移动，从而防止涡流积聚在出孔上形成涡流。 还提出了执行该方法的安排。
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5.发明申请公开(公告)号：US20130269483A1
公开(公告)日：2013-10-17
申请号：US13827033
申请日：2013-03-14
申请人： Jan-Erik Eriksson , Mohamed Ali Rahmani , Ola Widlund , Olof Hjortstam , Rebei Bel Fdhila , Shiva Sander-Tavallaey , Ulf Sand , Xiaojing Zhang , Tord Kroon
发明人： Jan-Erik Eriksson , Mohamed Ali Rahmani , Ola Widlund , Olof Hjortstam , Rebei Bel Fdhila , Shiva Sander-Tavallaey , Ulf Sand , Xiaojing Zhang , Tord Kroon
CPC分类号： B01F13/0809 , C21C5/52 , C21C7/00 , F27B3/10 , F27D27/00 , Y02P10/216
摘要： An apparatus for electromagnetic stirring of the steel melt in an electrical arc furnace includes two electromagnetic stirrer units, a current supply, and a control unit. The two stirrers are mounted on an outer bottom surface of the electrical arc furnace at opposites sides of a central position of the bottom surface, the current supply is operatively connected to the two electromagnetic stirrer units, and the control unit is operatively connected to the current supply to control the operation of the two electromagnetic stirrer units.
摘要翻译： 电弧炉中的熔融电磁搅拌装置包括两个电磁搅拌器单元，电流源和控制单元。 两个搅拌器安装在电弧炉的外底表面上，在底面的中心位置的相对侧，电流供应器可操作地连接到两个电磁搅拌器单元，并且控制单元可操作地连接到电流 供应以控制两个电磁搅拌器单元的操作。
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公开(公告)号：US09045810B2
公开(公告)日：2015-06-02
申请号：US14323671
申请日：2014-07-03
申请人： Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
发明人： Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
CPC分类号： C22B9/20 , C21B13/12 , C21B2300/04 , C21C5/527 , C21C7/00 , C21C2005/5276 , C21C2005/5288 , C21C2300/06 , F27D27/00 , F27D2019/0003 , Y02P10/216 , Y02P10/286
摘要： A method for melting steel in an electric arc furnace (EAF). A hot heel is provided in the EAF. Metal scrap is loaded into the EAF. The metal scrap is melted in the EAF. The mass of the hot heel in relation to the mass of the metal scrap that is initially beyond the surface of the hot heel is a certain minimum. This minimum is 0.75 times the relation between the heat required to melt the metal scrap beyond the surface of the hot heel and the heat that can be taken from the hot heel without it being solidified when a theoretical heat balance calculation is applied as defined in a formula.
摘要翻译： 一种在电弧炉（EAF）中熔炼钢的方法。 EAF中提供热跟。 金属废料装入EAF。 金属废料在EAF中熔化。 热脚跟的质量相对于最初超过热跟鞋表面的金属废料的质量是一定的最小值。 这个最小值是熔化金属废料超过热跟部表面所需的热量之间的关系的0.75倍，而当热应力的理论热平衡计算应用如 式。
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公开(公告)号：US08888888B2
公开(公告)日：2014-11-18
申请号：US14158497
申请日：2014-01-17
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
IPC分类号： C21C5/00 , F27D19/00 , H05B7/00 , F27D3/00 , F27D21/00 , F27B3/28 , C21C5/52 , H05B7/148 , F27D27/00
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： A method of controlling a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The method includes the steps of receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A control system is also presented herein.
摘要翻译： 一种控制电弧炉中熔融金属材料熔化过程的方法。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该方法包括以下步骤：接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制熔化 通过过程输入过程。 本文还介绍了一种控制系统。
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公开(公告)号：US20140130636A1
公开(公告)日：2014-05-15
申请号：US14158497
申请日：2014-01-17
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
IPC分类号： F27D19/00
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： A method of controlling a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The method includes the steps of receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A control system is also presented herein.
摘要翻译： 一种控制电弧炉中熔融金属材料熔化过程的方法。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该方法包括以下步骤：接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制熔化 通过过程输入过程。 本文还介绍了一种控制系统。
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公开(公告)号：US20150003488A1
公开(公告)日：2015-01-01
申请号：US14490366
申请日：2014-09-18
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： Disclosed is a control system for a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The system includes a processing unit adapted for receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A method is also presented herein.
摘要翻译： 公开了一种用于熔化金属材料的电弧炉中熔化过程的控制系统。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该系统包括处理单元，适于接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制 通过过程输入的熔化过程。 本文还给出了一种方法。
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公开(公告)号：US10001421B2
公开(公告)日：2018-06-19
申请号：US15030301
申请日：2014-10-24
发明人： Tushar Sharma , Xiaojing Zhang
IPC分类号： G01L1/16 , H01L41/087 , H01L41/113 , H01L41/22 , G01L9/00 , H01L41/193 , H01L41/29 , H01L41/314 , H01L41/332 , G01L9/08
CPC分类号： G01L1/16 , G01L9/008 , G01L9/08 , H01L41/087 , H01L41/1132 , H01L41/193 , H01L41/22 , H01L41/29 , H01L41/314 , H01L41/332
摘要： A method of fabricating a pressure sensor is disclosed. Initially, a first metal is deposited on top of a substrate, and the first metal is patterned accordingly. A PVDF-TrFE nano fiber is then deposited on top of the first metal layer, and the PVDF-TrFE nano fiber is etched. A second metal layer is subsequently deposited on top of the PVDF-TrFE nano fiber, and the second metal layer is etched to form a pressure sensor.
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