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164 条记录 (耗时 0.03 秒)

    Silicon carbide bodies having high toughness and fracture resistance and method of making same
    33.
    发明授权
    Silicon carbide bodies having high toughness and fracture resistance and method of making same 失效
    具有高韧性和耐断裂性的碳化硅体及其制造方法

    公开(公告)号：US5298470A

    公开(公告)日：1994-03-29

    申请号：US960178

    申请日：1992-10-09

    申请人： Kai Y. Chia ,  Wolfgang D. G. Boecker ,  Roger S. Storm

    发明人： Kai Y. Chia ,  Wolfgang D. G. Boecker ,  Roger S. Storm

    IPC分类号： C04B35/565 ,  C04B35/575 ,  C04B35/56

    CPC分类号： C04B35/565 ,  C04B35/575

    摘要： A sintered silicon carbide ceramic body preferably produced from a uniform mixture comprising from about 82 percent to about 99.4 percent by weight silicon carbide, from about 0.5 percent to about 10 percent by weight of a nitrogen containing aluminum compound and from about 0.1 to about 8 percent of a rare earth oxide, both reacted with oxygen, wherein said sintered ceramic body has a density greater than 90% percent of theoretical and a fracture toughness, as measured by a single edge notched beam test, of more than 7 MPam.sup.1/2 and method of making the same.

    摘要翻译： 优选由均匀混合物制备的烧结碳化硅陶瓷体，其包含约82重量％至约99.4重量％的碳化硅，约0.5重量％至约10重量％的含氮化合物和约0.1至约8重量％ 的稀土氧化物都与氧反应，其中所述烧结陶瓷体的密度大于理论值的90％，通过单边缘切割梁试验测得的断裂韧性大于7Mamam 1/2，和方法 做同样的事情

    Molten metal pump
    35.
    发明授权
    Molten metal pump 失效
    熔融金属泵

    公开(公告)号：US5181828A

    公开(公告)日：1993-01-26

    申请号：US797465

    申请日：1991-11-22

    申请人： Ronald E. Gilbert ,  George S. Mordue

    发明人： Ronald E. Gilbert ,  George S. Mordue

    IPC分类号： F04D7/06 ,  F04D13/08

    CPC分类号： F04D7/065 ,  F04D13/083

    摘要： A molten metal pump includes an impeller disposed at the end of an elongate drive shaft. The drive shaft is disposed within an elongate, hollow post. The impeller and the end of the post are adapted to be immersed in molten metal. An inert gas is conveyed through the gap between the outer surface of the drive shaft and the inner surface of the post, which gas is discharged into the molten metal in the vicinity of the impeller. Because the drive shaft is insulated from the molten metal, it can be made of a durable material such as steel; because the post is stationary relative to the molten metal, the metal is stirred only by the impeller, and not by the drive shaft. The invention includes other features such as a quick disconnect capability and a radial adjustment capability.

    摘要翻译： 熔融金属泵包括设置在细长驱动轴的端部处的叶轮。 驱动轴设置在细长的中空柱内。 叶轮和柱的端部适于浸入熔融金属中。 惰性气体通过驱动轴的外表面和柱的内表面之间的间隙传送，该气体被排放到叶轮附近的熔融金属中。 因为驱动轴与熔融金属绝缘，所以它可以由诸如钢的耐用材料制成; 因为柱相对于熔融金属是固定的，所以金属仅由叶轮而不是驱动轴搅动。 本发明包括诸如快速断开能力和径向调节能力的其它特征。

    Drive system for impeller shafts
    36.
    发明授权
    Drive system for impeller shafts 失效
    叶轮轴驱动系统

    公开(公告)号：US5092821A

    公开(公告)日：1992-03-03

    申请号：US467028

    申请日：1990-01-18

    申请人： Ronald E. Gilbert ,  David M. Masarin ,  George S. Mordue

    发明人： Ronald E. Gilbert ,  David M. Masarin ,  George S. Mordue

    IPC分类号： F04D7/06 ,  F04D29/04 ,  F04D29/044 ,  F04D29/20 ,  F16D3/20

    CPC分类号： F04D29/044 ,  F04D29/20 ,  F04D7/065 ,  F16D3/20 ,  Y10S464/901 ,  Y10T403/32598 ,  Y10T403/51

    摘要： A drive system for impeller shafts includes a coupling that has a universal joint that is lubricated under all operating conditions. A housing is connected to the universal joint, which housing includes a hollow end portion adapted to receive the non-threaded end of an impeller shaft. A threaded stud projects from the end of the shaft and into the housing where the stud is secured by means of a nut. The nut is readily accessible to the user so that the axial position of the shaft can be adjusted without difficulty. The nut is releasably held within the housing so that the shaft and stud, with nut attached, can be quickly disconnected from the coupling. The invention also includes a modified "square drive" configuration for the ends of the shaft that is extremely strong and enables the shaft to be connected to the impeller and the coupling very easily.

    摘要翻译： 用于叶轮轴的驱动系统包括具有在所有操作条件下被润滑的万向接头的联接器。 壳体连接到万向接头，该壳体包括适于容纳叶轮轴的非螺纹端的中空端部。 螺柱从轴的端部突出到壳体中，螺柱通过螺母固定。 螺母容易接近使用者，使得轴的轴向位置可以毫无困难地被调整。 螺母被可释放地保持在壳体内，使得具有螺母的轴和螺柱可以快速地从联接器断开。 本发明还包括对于轴的端部的改进的“方形驱动”结构，该结构非常坚固，并且能够使轴能够非常容易地连接到叶轮和联接器。

    Molten metal pump with filter
    37.
    发明授权
    Molten metal pump with filter 失效
    熔融金属泵带过滤器

    公开(公告)号：US5078572A

    公开(公告)日：1992-01-07

    申请号：US467485

    申请日：1990-01-19

    申请人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

    发明人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

    IPC分类号： B01D35/26 ,  C22B9/05 ,  F04D7/06 ,  F04D13/04 ,  F04D29/70

    CPC分类号： F04D29/708 ,  B01D35/26 ,  C22B9/055 ,  F04D13/04 ,  F04D7/065

    摘要： A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The filter forms a cavity adjacent the pump's inlet. The filter has a low porosity while maintaining a high flow rate for the pump. The filter is a semi-toroidal structure that is attachable to a pump base having an upper inlet. The filter surrounds the pump's inlet. The filter includes a central opening through which access can be had to the pump's impeller for purposes of inspection, repair, or replacement without disturbing the attachment between the filter and base.

    摘要翻译： 熔融金属泵包括防止从浸入其中的熔融金属吸收异物诸如渣滓的过滤器。 过滤器是一种大型结构，其固定在泵的入口周围的泵的底部。 过滤器在泵的入口附近形成一个空腔。 过滤器具有低孔隙率，同时保持泵的高流量。 过滤器是可连接到具有上部入口的泵基座的半环形结构。 过滤器围绕泵的入口。 过滤器包括一个中央开口，为了检查，修理或更换的目的，可以通过该中心开口进入泵的叶轮，而不会干扰过滤器和底座之间的连接。

    Apparatus for making ceramic tubes
    38.
    发明授权
    Apparatus for making ceramic tubes 失效
    制造陶瓷管的装置

    公开(公告)号：US5057001A

    公开(公告)日：1991-10-15

    申请号：US322482

    申请日：1989-03-10

    申请人： James L. Eucker ,  Robert C. Ruhl ,  Irving B. Ruppel, Jr.

    发明人： James L. Eucker ,  Robert C. Ruhl ,  Irving B. Ruppel, Jr.

    IPC分类号： B28B3/20 ,  B28B11/24 ,  B28B21/52 ,  F27D3/02

    CPC分类号： B28B11/243 ,  B28B21/52 ,  B28B3/20 ,  F27D3/026

    摘要： Apparatus for making ceramic tubes from a mixture that includes ceramic powder. The mixture is extruded through a die to form a tube. The tube is passed through an open-ended dryer, calciner, transition zone, sintering furnace, and cooler. Thereafter, the tube is cut to the desired length (which may be very long). The quality of the tube is enhanced by applying a vacuum to the mixture prior to extrusion. For tubes made of non-oxide ceramics, an inert atmosphere is maintained both inside and outside the tube in all sections of the equipment that operate above 200.degree. C. A controlled tension is applied to the tube by means of first pinch rolls disposed downstream of the dryer and second pinch rolls disposed downstream of the cooler.

    Filtration of molten ferrous metal
    39.
    发明授权
    Filtration of molten ferrous metal 失效
    熔融黑色金属过滤

    公开(公告)号：US5045111A

    公开(公告)日：1991-09-03

    申请号：US506712

    申请日：1990-04-10

    申请人： Ajit Y. Sane ,  Alison W. Gee ,  David J. Eichermiller

    发明人： Ajit Y. Sane ,  Alison W. Gee ,  David J. Eichermiller

    IPC分类号： B01D29/01 ,  B01D39/20 ,  C04B38/00 ,  C04B38/06 ,  C22B9/02

    CPC分类号： C22B9/023 ,  B01D29/012 ,  B01D39/2093 ,  C04B38/00 ,  C04B38/065 ,  Y02P10/234

    摘要： The filtration of molten ferrous metal is accomplished by providing a porous ceramic filter preferably comprising particles of alumina and partially stabilized zirconia that are spaced by interconnected cells to form circuitous and tortuous pathways throughout the ceramic body. The filter is a disc-like structure that can have different surface configurations such as corrugations or a waffle design. The filter can be flat-surfaced with an array of cylindrical openings or counterboard openings extending completely through the filter, or with openings extending partially into the filter from the upper and lower sides of the filter. Several relatively thin filters can be arranged in tandem, if desired.

    摘要翻译： 熔融黑色金属的过滤是通过提供多孔陶瓷过滤器来实现的，所述多孔陶瓷过滤器优选包括氧化铝颗粒和部分稳定化的氧化锆，所述氧化铝和部分稳定的氧化锆由相互连接的电池隔开以在整个陶瓷体中形成 过滤器是可以具有不同表面构造的盘状结构，例如波纹或华夫饼设计。 过滤器可以平坦表面，其具有完全延伸穿过过滤器的圆柱形开口或逆向开口的阵列，或者具有从过滤器的上侧和下侧部分地延伸到过滤器中的开口。 如果需要，可以串联布置若干相对较薄的过滤器。

    Torque coupling system
    40.
    发明授权
    Torque coupling system 失效
    扭矩耦合系统

    公开(公告)号：US5028211A

    公开(公告)日：1991-07-02

    申请号：US315533

    申请日：1989-02-24

    申请人： George S. Mordue ,  Herbert L. Ritchie, Jr.

    发明人： George S. Mordue ,  Herbert L. Ritchie, Jr.

    IPC分类号： F04D7/06 ,  F04D13/02 ,  F16C3/02 ,  F16D1/02 ,  F16D1/08 ,  F16D7/02 ,  F16D7/04 ,  H02H7/085

    CPC分类号： F16D1/0876 ,  F16C3/02 ,  F16D7/048 ,  H02H7/085 ,  Y10T403/585 ,  Y10T403/7021

    摘要： A torque coupling system includes an impeller that is connected to one end of an impeller shaft without the use of threads. The connection is made by cement and dowels. A drive system for the shaft includes a hollow coupling into which the other end of the shaft can be fitted. The shaft includes longitudinally extending slots formed at its end. The coupling includes spaced, longitudinally extending keys adapted to be fitted into the slots formed in the shaft. The drive system also includes a torque limiter that is connected intermediate the coupling and a drive motor. If the drive motor is an electric motor, the motor can be provided with automatic shut-down circuitry that is activated in the event of a current/torque overload. Visual and aural alarms are provided to alert the user that a shut-down has occurred.