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公开(公告)号：US06972376B2
公开(公告)日：2005-12-06
申请号：US11012623
申请日：2004-12-15
CPC分类号： H01B12/16 , H01B12/02 , H01B12/06 , Y02E40/641 , Y02E40/642 , Y02E40/647 , Y10S505/886 , Y10S505/887 , Y10T29/49014
摘要： In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2 %. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.
摘要翻译： 为了提供减少交流损耗的柔性氧化物超导电缆，用稳定金属覆盖的带状超导线缠绕在柔性成形器上。 超导线优选以不大于0.2％的弯曲应变放置在前者上。 在放置在前者上时，多个带状超导线并排放置在芯部件上，形成第一层。 规定数量的带状超导线以并排的方式放置在第一层的顶部上，以形成第二层。 前者可以由金属，塑料，增强塑料，聚合物或复合材料制成，并为超导电线和与其形成的电缆提供灵活性。
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公开(公告)号：US06867375B2
公开(公告)日：2005-03-15
申请号：US10226177
申请日：2002-08-22
CPC分类号： H01B12/16 , H01B12/02 , H01B12/06 , Y02E40/641 , Y02E40/642 , Y02E40/647 , Y10S505/886 , Y10S505/887 , Y10T29/49014
摘要： In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.
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公开(公告)号：US06596945B1
公开(公告)日：2003-07-22
申请号：US09392278
申请日：1999-09-09
IPC分类号： H01B1200
CPC分类号： H01B12/16 , H01B12/02 , H01B12/06 , Y02E40/641 , Y02E40/642 , Y02E40/647 , Y10S505/886 , Y10S505/887 , Y10T29/49014
摘要： In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.
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公开(公告)号：US06936772B2
公开(公告)日：2005-08-30
申请号：US10920757
申请日：2004-08-18
CPC分类号： H01B12/16 , H01B12/02 , H01B12/06 , Y02E40/641 , Y02E40/642 , Y02E40/647 , Y10S505/886 , Y10S505/887 , Y10T29/49014
摘要： In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.
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公开(公告)号：US06864430B2
公开(公告)日：2005-03-08
申请号：US10060693
申请日：2002-01-30
CPC分类号： H01B12/02 , H01B12/06 , H01B12/16 , Y02E40/641 , Y02E40/642 , Y02E40/647
摘要： In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.
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公开(公告)号：US4661153A
公开(公告)日：1987-04-28
申请号：US510055
申请日：1983-07-01
申请人： Uday K. Sinha
发明人： Uday K. Sinha
CPC分类号： B22D1/005 , C22B15/006 , C22B9/055 , F27D3/16
摘要： In an in-line refining vessel (50) having submerged porous plugs (20) for bubbling oxygen through the molten metal, a shroud device (52) to circulate nitrogen around the porous plug (20) and oxygen supply pipe (25).
摘要翻译： 在具有用于使氧气通过熔融金属鼓泡的浸没式多孔塞（20）的在线精炼容器（50）中，围绕多孔塞（20）和氧气供应管（25）循环氮气的护罩装置（52）。
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公开(公告)号：US5284428A
公开(公告)日：1994-02-08
申请号：US813728
申请日：1991-12-27
申请人： Uday K. Sinha , Ronald D. Adams
发明人： Uday K. Sinha , Ronald D. Adams
CPC分类号： B21C23/005 , B22F3/20
摘要： Apparatus for continuously extruding powdered, comminuted, or particulated feed material which includes a Conform extrusion machine or the like in cooperation with a forming wheel rotatably disposed within a portion of the Conform wheel to compress the feed material into a compacted feedstock. Compressing the feed material into a compacted feedstock enables uniform and reliable conveyance of the feed material into the extrusion machine. An auxiliary shoe member conforming to the outer periphery of the forming wheel and to the Conform shoe is included to separate the compacted feedstock from the forming wheel. The auxiliary shoe directs the compacted feedstock into a passageway formed by the Conform machine extrusion wheel and extrusion shoe. As the respective wheels are rotated the forces on the compacted feedstock heat it and cause it to yield and flow through an extrusion chamber adjacent the Conform machine abutment; it is then extruded from a die in the wall of the chamber. A temperature control system in heat exchanging relationship with the chamber in proximity to the die maintains a desired temperature uniformity in the chamber material to provide uniformity of grain size in the extruded product. Temperature control systems may also be provided for the feed material and for metallurgical control of the extruded product.
摘要翻译： 用于与可旋转地设置在Conform轮的一部分内的成型轮协同连续挤出粉末状，粉碎的或微粒状的进料的装置，其包括Conform挤出机等，以将进料材料压缩成压实的原料。 将进料压缩成压实的原料可使进料均匀可靠地输送到挤压机中。 包括与成型轮和Conform鞋的外周相一致的辅助鞋部件，以将压实的原料与成型轮分离。 辅助鞋将压实的原料引导到由Conform机器挤出轮和挤出鞋形成的通道中。 当相应的轮旋转时，压实原料上的力加热它并使其产生并流过邻近Conform机器基台的挤出室; 然后将其从腔室的模具中挤出。 与模具附近的腔室热交换关系的温度控制系统在腔室材料中保持期望的温度均匀性，以提供挤出产品中的粒度均匀性。 还可以为进料提供温度控制系统并用于冶金控制挤压产品。
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公开(公告)号：US4823586A
公开(公告)日：1989-04-25
申请号：US140164
申请日：1987-12-31
申请人： Uday K. Sinha , E. Henry Chia
发明人： Uday K. Sinha , E. Henry Chia
CPC分类号： B21C29/00 , B21C23/005 , B21C31/00
摘要： Apparatus for continuously extruding material includes a moving member and a stationary member forming a passageway therebetween for frictional feeding of the material to be extruded under pressure into the passageway. An abutment in the passageway forms a barrier to the material being fed therein, whereby the forces on the material heat it and cause it to yield. The heated material flows into an extrusion chamber adjacent to the abutment and is extruded from a die in a wall of the chamber. A cooling system provides first and second phases of quenching the extruded product separated by an interval of self-annealing to limit the surface grain size and the hardness of the extruded product. The product is subjected to the first phase of quenching immediately as it exists the die, to maintain the temperature of the extruded product at a desired fixed level at a selected point along the flow path of the extruded product downstream of the die.
摘要翻译： 用于连续挤出材料的装置包括移动构件和固定构件，其在其间形成通道，用于在压力下将挤压材料摩擦输送到通道中。 通道中的邻接部件对被供给的材料形成屏障，由此材料上的力加热并使其产生。 被加热的材料流入邻近邻接处的挤压室，并从腔室的模具中挤出。 冷却系统提供通过自退火间隔分离的挤压产品的淬火第一和第二阶段以限制挤出产品的表面粒度和硬度。 该产品在存在模具时立即进行第一阶段的淬火，以将挤出产品的温度保持在沿模具下游挤出产品的流动路径的选定点处所需的固定水平。
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公开(公告)号：US4588018A
公开(公告)日：1986-05-13
申请号：US627822
申请日：1984-07-05
申请人： Uday K. Sinha , Frank A. Peacock
发明人： Uday K. Sinha , Frank A. Peacock
CPC分类号： B22D11/0602 , B22D11/16
摘要： A method is provided for optimally operating a wheel-type continuous caster such that solidification porosity and macrosegregation in the continuous strand thus produced is substantially minimized while casting speed is substantially maximized subject to that condition. Continuous casting is adjusted from an operational condition where solidification porosity is forming by changing the solidification rate so as to cause the terminus of the solidification zone to shift location in the direction of increasing metalostatic pressure until the point where solidification porosity ceases to form or its occurrence is minimized; further provided that in the vicinity of the solidification terminus the direction of increasing metalostatic pressure is maintained counter to the direction of casting. Conversely, from an operational condition where solidification porosity is not forming, solidification rate is changed so as to cause the solidification terminus to shift location in the direction of casting and in the direction of decreasing metalostatic pressure until formation of solidification porosity impends. Advantageously, this system may be utilized continuously to correct continually for perturbations during continuous casting. Additionally, the invention comprehends a continuously cast strand of indefinite length produced by the above method wherein macroscopic solidification porosity has been substantially eliminated and macrosegregation has been substantially minimized. This advance is especially important for alloys that are particularly susceptible to solidification bridging defects in casting, such as those alloys having a large freezing range.
摘要翻译： 提供了一种用于最佳地操作轮式连续铸造机的方法，使得如此产生的连续股中的固化孔隙率和宏观偏析基本上最小化，同时铸造速度基本上最大化，受制于该条件。 通过改变凝固速率从凝固孔隙度形成的操作状态调整连续铸造，使凝固区的末端沿着增加的金属压力的方向移动位置，直到凝固孔隙率停止形成或发生的点 被最小化 进一步提供在固化终点附近，提高压力稳定方向与铸造方向相反。 相反，从凝固孔隙率未形成的工作状态出发，凝固速度发生变化，使凝固终点在铸造方向上偏移位置，降低金属压力的方向直到形成凝固孔隙。 有利地，该系统可以连续地被利用以连续地校正连续铸造期间的扰动。 此外，本发明包括通过上述方法生产的不定长度的连续铸造线，其中宏观凝固孔隙率基本上被消除，并且宏观偏析已经基本上最小化。 对于特别易于铸造中的凝固桥接缺陷的合金，例如具有大的冷冻范围的那些合金，这种进步尤其重要。
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公开(公告)号：US06936771B2
公开(公告)日：2005-08-30
申请号：US10492385
申请日：2002-10-02
申请人： Uday K. Sinha , Jerry Tolbert
发明人： Uday K. Sinha , Jerry Tolbert
CPC分类号： H01F6/065 , H02G15/34 , Y02E40/648
摘要： Disclosed is a termination that connects high temperature superconducting (HTS) cable immersed in pressurized liquid nitrogen to high voltage and neutral (shield) external bushings at ambient temperature and pressure. The termination consists of a splice between the HTS power (inner) and shield (outer) conductors and concentric copper pipes which are the conductors in the termination. There is also a transition from the dielectric tape insulator used in the HTS cable to the insulators used between and around the copper pipe conductors in the termination. At the warm end of the termination the copper pipes are connected via copper braided straps to the conventional warm external bushings which have low thermal stresses. This termination allows for a natural temperature gradient in the copper pipe conductors inside the termination which enables the controlled flashing of the pressurized liquid coolant (nitrogen) to the gaseous state. Thus the entire termination is near the coolant supply pressure and the high voltage and shield cold bushings, a highly stressed component used in most HTS cables, are eliminated. A sliding seal allows for cable contraction as it is cooled from room temperature to ˜72-82 K. Seals, static vacuum, and multi-layer superinsulation minimize radial heat leak to the environment.
摘要翻译： 公开了将环境温度和压力下浸入加压液氮中的高温超导（HTS）电缆连接到高压和中性（屏蔽）外部衬套的终端。 端子包括HTS电源（内部）和屏蔽（外部）导体之间的接头以及作为端子中的导体的同心铜管。 还有从HTS电缆中使用的绝缘胶带绝缘体到终端中铜管导体之间和周围使用的绝缘体的转变。 在终端的热端，铜管通过铜编织带连接到具有低热应力的常规暖外部衬套。 该终端允许在终端内的铜管导体中的自然温度梯度，使得加压液体冷却剂（氮）能够受控地闪烁到气态。 因此，整个终端接近冷却剂供应压力，并且消除了在大多数HTS电缆中使用的高应力部件的高电压和屏蔽冷套管。 滑动密封允许电缆收缩，从室温冷却至〜72-82K。密封件，静电真空和多层超绝缘将辐射热泄漏最小化到环境中。
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