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公开(公告)号：US5698124A
公开(公告)日：1997-12-16
申请号：US551240
申请日：1995-10-31
申请人： Frank Vincent DiMarcello , James William Fleming, Jr. , Arthur Clifford Hart, Jr. , Richard Garner Huff , Karen S. Kranz
发明人： Frank Vincent DiMarcello , James William Fleming, Jr. , Arthur Clifford Hart, Jr. , Richard Garner Huff , Karen S. Kranz
IPC分类号： C03B37/027 , C03B37/029 , F27B1/09 , F27B9/36 , F27D11/06 , G02B6/00 , H05B6/02 , H05B6/14 , H05B6/22 , H05B6/10 , F27D1/00
CPC分类号： H05B6/22 , C03B37/029 , C03B2205/64 , C03B2205/70
摘要： A fiber drawing apparatus is provided with an improved fiber draw furnace wherein an inner zirconia tube is surrounded by a radially-spaced annular insulating region of magnesia within a silica beaker. While the magnesia has a melting point approximately the same as zirconia, the electrical conductivity of magnesia is substantially lower, enabling it to withstand higher RF power. Moreover magnesia is more soluble than zirconia in silica, reducing the likelihood of particulate contamination of the fiber.
摘要翻译： 纤维拉伸装置设置有改进的纤维拉制炉，其中内部氧化锆管被二氧化硅烧杯内的氧化镁的径向隔开的环形绝缘区域包围。 虽然氧化镁具有与氧化锆大致相同的熔点，但是氧化镁的电导率显着较低，使得其能够承受更高的RF功率。 此外，氧化镁在二氧化硅中比氧化锆更易溶，降低了纤维颗粒污染的可能性。
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公开(公告)号：US5666377A
公开(公告)日：1997-09-09
申请号：US340627
申请日：1994-11-16
申请人： George Havas , Arthur L. Vaughn
发明人： George Havas , Arthur L. Vaughn
摘要： A multi-furnace control system selectively delivers preselected percentages of available power to furnaces of the system, preferably designated as either a melt furnace or a hold furnace. The power supply delivers power to both furnaces. A capacitor station in parallel connection to the power supply and the furnaces is tuned to form a tank circuit therewith. Switches control the selected power delivered to the furnaces respectively and control the delivery of a first portion of the power for holding molten product in the hold furnace as the master control. A remaining portion of the power is then delivered for melting product in the melt furnace. The capacitor station acts as a reactive tank for both furnaces.
摘要翻译： 多炉控制系统选择性地将预选的可用功率百分比提供给系统的炉，优选地称为熔化炉或保持炉。 电源为两个炉子供电。 与电源和熔炉并联连接的电容器站被调谐以与其形成一个槽电路。 开关分别控制输送到炉子的选择的功率，并控制用于将熔融产物保持在保持炉中作为主控制器的第一部分功率的输送。 然后输送功率的剩余部分用于在熔炉中熔化产物。 电容器站用作两个炉的反应罐。
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93.发明授权
公开(公告)号：US5416796A
公开(公告)日：1995-05-16
申请号：US67149
申请日：1993-05-26
申请人： Akira Fukuzawa , Kazuyuki Sakuraya , Toshiaki Watanabe , Motoo Yamazaki , Tadashi Morita , Tatsuo Take , Michiru Fujita
发明人： Akira Fukuzawa , Kazuyuki Sakuraya , Toshiaki Watanabe , Motoo Yamazaki , Tadashi Morita , Tatsuo Take , Michiru Fujita
CPC分类号： H05B6/32 , F27B14/063 , H05B6/24
摘要： Apparatus to float and melt particularly small pieces of high-melting point metal continuously while making the amount of meltable liquid metal greater than the capacity of a crucible. A conductive crucible having segments includes an upper cylindrical crucible portion and a lower closed-end crucible portion. An induction coil is arranged outside the upper crucible portion, whereas an induction coil is arranged below the induction coil. The lower crucible portion is in contact with the upper crucible portion and located on the inside of the induction coil at the initial melting stage. The lower crucible portion is lowered as a columnar metal grows and solidifies between molten metal and the lower crucible portion. A continuous feeder continuously feeds cold material. A molten metal surface thermometer and a molten metal surface level gauge are arranged above the crucible. The operation of the continuous feeder is regulated within a desired range of values of the molten metal surface thermometer. On the other hand, the lower crucible portion is successively lowered within a desired range of values of the molten metal surface level gauge.
摘要翻译： 连续地漂浮和熔融特别是小块高熔点金属的装置，同时使可熔化液体金属的量大于坩埚的容量。 具有节段的导电坩埚包括上圆柱形坩埚部分和下封闭端坩埚部分。 感应线圈设置在上坩埚部分的外侧，而感应线圈设置在感应线圈的下方。 下坩埚部分与上坩埚部分接触并且在初始熔化阶段位于感应线圈的内侧。 随着柱状金属在熔融金属和下坩埚部分之间生长和固化，下坩埚部分下降。 连续进料器连续供料冷材料。 熔融金属表面温度计和熔融金属表面液位计布置在坩埚上方。 连续进料器的操作被调节在熔融金属表面温度计的期望值范围内。 另一方面，下坩埚部分在熔融金属表面液位计的期望值范围内连续降低。
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公开(公告)号：US5164148A
公开(公告)日：1992-11-17
申请号：US610249
申请日：1990-11-08
申请人： Michio Kawasaki
发明人： Michio Kawasaki
IPC分类号： B22D41/01 , B22D41/015 , C21C7/00 , F27D11/06 , H05B6/14
CPC分类号： C21C7/0075 , B22D41/015
摘要： An apparatus for heating molten metal including a ladle provided with a refractory heat insulating material and first core members arranged in pairs and attached to the outside of the ladle. A tray capable of mounting said ladle carries second cores with magnetic pole portions at both ends of said so as to face the ladle mounted first cores. A coil if provided for exciting the second cores. The first cores and magnetic pole portions of second cores are located at the outer circumferential portion of the ladle to face each other radially in a manner to facilitate placement and removal of the ladle to and from the tray. Position sensors and means are provided to ensure positional accuracy of the first ladle carried cores and the poles of the second cores. Also the coil are physically and thermally protected from ladle heat by appropriate shock absorbing and thermal insulating provisions. Thermal protection of the cores further enhanced by cooling embodiments. The ladle by itself or the ladle and tray may be enclosed in a vacuum chamber.
摘要翻译： 一种用于加热熔融金属的装置，包括设有耐火绝热材料的钢包和成对布置并附接到钢包的外部的第一芯构件。 能够安装所述钢包的托盘在所述的两端具有带有磁极部分的第二芯，以便面对钢包安装的第一芯。 如果提供用于激励第二个核心的线圈。 第二芯的第一芯部和磁极部分位于钢包的外圆周部分处，以便于将钢包放置和移出托盘的方式径向地彼此面对。 提供位置传感器和装置以确保第一钢包的芯和第二芯的极的位置精度。 此外，线圈通过适当的减震和隔热规定物理和热保护以防止钢包热。 通过冷却实施例进一步增强了芯的热保护。 钢包本身或钢包和托盘可以封闭在真空室中。
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95.发明授权Apparatus and method for maintaining constant molten metal level in metal casting 失效在金属铸件中保持熔融金属水平恒定的装置和方法
公开(公告)号：US4673025A
公开(公告)日：1987-06-16
申请号：US848675
申请日：1986-04-04
申请人： John H. Mortimer
发明人： John H. Mortimer
摘要： Apparatus and method for providing a constant level of molten metal to a mold in gas permeable shell mold casting. The apparatus includes a furnace for melting and holding metal to be cast. Structure is provided for locating a mold to be filled in casting relationship with the molten metal in the furnace and for causing molten metal to be drawn from the furnace into the mold. Structure responsive to the sensor is provided for tilting the furnace relative to the mold causing the level of the molten metal to remain constant relative to the mold as the mold is being filled.
摘要翻译： 在气体可渗透的壳模铸造中，在模具中提供恒定水平的熔融金属的装置和方法。 该装置包括用于熔化和保持待铸金属的炉。 提供了用于定位要与炉中的熔融金属浇注关系的模具，并使熔融金属从炉中拉出到模具中。 提供响应于传感器的结构，用于使炉相对于模具倾斜，导致熔融金属的水平在模具被填充时相对于模具保持恒定。
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公开(公告)号：US4578794A
公开(公告)日：1986-03-25
申请号：US610120
申请日：1984-05-14
申请人： Walter Cadek
发明人： Walter Cadek
摘要： The metallurgical vessel comprises a continuous wall and a bottom plate and such vessel constitutes a mold for electrically remelting an electrode by resistance heating of an electrically conductive slag bath. The metallurgical vessel further comprises solenoids for generating an electromagnetic field which is controlled by control means operatively connected to a reference signal generator and to magnetic measuring means like Hall generators preferably arranged tangentially relative to the vessel.
摘要翻译： 冶金容器包括连续的壁和底板，并且这种容器构成用于通过导电渣槽的电阻加热来电重熔电极的模具。 冶金容器还包括用于产生电磁场的螺线管，该电磁场由可操作地连接到参考信号发生器的控制装置和类似霍尔发生器的磁性测量装置控制，优选地相对于容器相切地布置。
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97.发明授权
公开(公告)号：US4487401A
公开(公告)日：1984-12-11
申请号：US442276
申请日：1982-11-17
申请人： Charles Vives
发明人： Charles Vives
CPC分类号： H05B6/34 , H02K44/06 , H05B6/22 , H05B2213/02
摘要： The device includes a chamber for holding a metal in the liquid state having a lower section that communicates with three channels which converge to form a single passage wherein two of the channels include inductor cores around which the channel forms an annular zone to contain the metal. In the presence of alternating currents of variable voltage and phase, the inductors can be energized separately or simultaneously to perform the heating, mixing and transferring operations within the channels.
摘要翻译： 该装置包括用于保持处于液态的金属的室，其具有与三个通道相通的下部，该三个通道会聚以形成单个通道，其中两个通道包括电感器芯，通道周围形成有环状区域以容纳金属。 在存在可变电压和相位的交流电的情况下，电感器可以单独或同时通电，以在通道内进行加热，混合和转移操作。
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公开(公告)号：US4363653A
公开(公告)日：1982-12-14
申请号：US256138
申请日：1981-04-21
申请人： Staffan Granstrom
发明人： Staffan Granstrom
CPC分类号： F27D99/0006 , F27B3/045 , F27B3/08 , F27D11/12 , H05B6/22
摘要： Solid pieces of metal, such as steel scrap and ferrous pellets, are charged in a basin having a refractory inside and progressively melted down by an electric induction heater positioned above the basin and the charge. As melt collects in the bottom of the basin it is continuously or intermittently tapped into a storage container having heating means for keeping the melt molten. This prevents the melt level in the basin's bottom from rising uncontrollably.
摘要翻译： 将实心的金属片，例如废钢和亚铁颗粒，装入具有耐火材料的盆内，并通过位于盆地和电荷上方的电感应加热器逐渐熔化。 当熔体收集在盆底时，它被连续地或间歇地抽入具有用于保持熔体熔融的加热装置的储存容器中。 这防止了盆地底部的熔体水平不受控制地上升。
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公开(公告)号：US4265432A
公开(公告)日：1981-05-05
申请号：US50094
申请日：1979-06-19
申请人： Dimitri E. Lajovic , Hans Lassner
发明人： Dimitri E. Lajovic , Hans Lassner
CPC分类号： C22B9/05 , C22B21/066
摘要： Apparatus for the continuous degassing of molten metal is described comprising an inlet chamber adapted to receive untreated metal, an outlet chamber from which treated metal may be removed, a channel extending beneath and interconnecting the chambers to provide a metal flow path therebetween, the chambers are separated at least in part by an electrically conductive wall for defining with the molten metal in the channel an electrically conductive loop, means are provided for inducing a flow of current in the loop sufficient to maintain metal within the chambers and channel in a molten form and means are provided for introducing a purging gas beneath the surface of the molten metal.
摘要翻译： 描述了用于熔融金属的连续脱气的装置，其包括适于容纳未处理的金属的入口室，可以从其中去除经处理的金属的出口室，在其下方延伸并且连接所述室以在其间提供金属流动路径的通道， 至少部分地由导电壁分开，用于在通道中用熔融金属限定导电环，提供用于引导环路中的电流流动的装置，足以将金属保持在腔室内并且以熔融形式通道， 提供了用于在熔融金属表面下方引入清洗气体的装置。
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公开(公告)号：US4082544A
公开(公告)日：1978-04-04
申请号：US659285
申请日：1976-02-19
申请人： Bengt Fredrikson
发明人： Bengt Fredrikson
CPC分类号： C22B4/00 , H05B6/16 , Y02P10/253
摘要： Materials of low electrical conductivity, such as minerals and metal compounds, are floated on a metal melt which is itself heated by a channel-type electric inductor, the heat from the melt transferring to the material. A pneumatic blast is injected into the melt so that the interface between it and the material is caused to dynamically undulate, promoting the heat exchange from the melt to the material. The blast can carry particles of additive or reactive agents.
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