公开(公告)号：US5173242A

公开(公告)日：1992-12-22

申请号：US738141

申请日：1991-07-30

申请人： Ernst Luhrsen ,  Ulrich Schneider

发明人： Ernst Luhrsen ,  Ulrich Schneider

IPC分类号： B22D11/10 ,  B22D41/50 ,  B22D41/58 ,  F27D3/15

CPC分类号： B22D41/502

摘要： An assembly includes a discharge member of a metallurgical vessel and a pipe member connected to the discharge member at mutual surfaces thereof defining a seat therebetween. An annular recess is formed in the region of such seat, a seal seals such seat, and gas is supplied to the annular recess. The seal is in the form of a pair of compressible sealing rings positioned between the mutual surfaces of the two members on opposite sides of the annular recess. A pressure indicator is connected to a gas supply line supplying gas to the annular recess to provide an indication of the pressure of gas prevailing in the annular recess, and particularly of changes of such pressure.

摘要翻译： 一种组件包括冶金容器的排放构件和在其相互的表面处连接到排出构件的管构件，其在其间限定了一个座。 在该座椅的区域中形成环形凹部，密封件密封该座椅，并将气体供应到环形凹部。 密封件是一对可压缩的密封环的形式，其位于两个构件在环形凹部的相对侧上的相互表面之间。 压力指示器连接到气体供应管线，该气体供应管线向环形凹部提供气体，以提供在环形凹槽中盛行的气体的压力的指示，特别是这种压力的变化。

公开(公告)号：US5106060A

公开(公告)日：1992-04-21

申请号：US745499

申请日：1991-08-15

申请人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

发明人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

IPC分类号： B22D11/10 ,  B22D41/00 ,  B22D41/14 ,  B22D41/18 ,  B22D41/42

CPC分类号： B22D41/14 ,  B22D41/186

摘要： A closing and/or regulating apparatus for tapping molten metal from the interior of the metallurgical vessel includes an inner refractory pipe having extending through a wall thereof at least one opening and an outer refractory pipe fitted over the inner pipe and having extending through a wall thereof at least one opening. Outer and inner surfaces of the inner and outer pipes, respectively, define mating sealing surfaces. One of the pipes is fixedly mounted to a metallurgical vessel, and the other pipe is movable axially and/or rotatably relative to the one pipe to thereby selectively bring the openings to the two pipes relatively into and out of alignment. The inner pipe has adjacent an inner end thereof at a position inwardly of the opening therein a closure closing the interior of the inner pipe. The outer pipe defines therein a space forming a gas distribution chamber at a location confronting the closure. A gas, for example an inert gas, is introduced into the gas distribution chamber such that the gas passes therefrom between the sealing surfaces and into the openings.

公开(公告)号：US5080265A

公开(公告)日：1992-01-14

申请号：US597661

申请日：1990-10-17

申请人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

发明人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

IPC分类号： B22D41/14

CPC分类号： B22D41/14

摘要： A closing and/or regulating apparatus for tapping molten metal from the interior or a metallurgical vessel includes a vertical inner pipe having extending through a wall thereof at least one opening for the passage of molten metal. An outer pipe is fitted over the inner pipe and has extending through a wall thereof at least one opening. One of the pipes is to be mounted stationarily with respect to a metallurgical vessel, and the other of the pipes is displaceable relative to such one pipe in a vertical axial direction through a working stroke at which the openings of the pipes may be brought into alignment to thereby discharge molten metal downwardly through the interior of the inner pipe. The dimension of the opening in the stationary pipe in such direction is greater than the dimension of the opening in the displaceable pipe in such direction. The circumferential dimension of the opening in the displaceable pipe is substantially the same as the circumferential dimension of a lower portion of the opening in the stationary pipe.

摘要翻译： 用于从内部或冶金容器中取出熔融金属的封闭和/或调节装置包括垂直内管，其具有穿过其壁的至少一个用于熔融金属通过的开口。 外管装配在内管上方并具有延伸穿过其至少一个开口的壁。 一个管道相对于冶金容器固定地安装，并且另一个管道可以相对于这样的一个管道在垂直轴向方向上移动，通过工作行程，在该工作行程中管道的开口可以对准 从而将熔融金属向下排出通过内管的内部。 固定管中开口的尺寸在这个方向上大于可移动管中开口的尺寸。 可移动管中的开口的周向尺寸与固定管中的开口的下部的周向尺寸基本相同。

公开(公告)号：US5025961A

公开(公告)日：1991-06-25

申请号：US567012

申请日：1990-08-13

申请人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

发明人： Ullrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

IPC分类号： B22D41/18 ,  B22D41/14 ,  B22D41/50 ,  F27D3/14

CPC分类号： B22D41/14

摘要： A refractory shutoff assembly for controlling the discharge of molten metal from a metallurgical vessel includes a refractory inner pipe to be fixedly mounted in a bottom of the vessel, such inner pipe having therethrough at least one opening at a position to be above the vessel bottom. A refractory outer pipe is mounted about the inner pipe and has therethrough at least one opening. The outer pipe has a lower end with an annular end surface. The outer pipe is movable relative to the inner pipe axially thereof between an open position, whereat the opening in the outer pipe aligns with the opening in the inner pipe, and a closed position, whereat such openings are isolated to block molten metal discharge. The length of possible axial movement of the outer pipe relative to the inner pipe from the open position is sufficient to enable movement of the outer pipe to another closed position, whereat the openings are isolated from each other and whereat the annular end surface sealingly abuts on an annular surface extending around the inner pipe, thereby entirely enclosing the inner pipe.

摘要翻译： 用于控制来自冶金容器的熔融金属排放的难熔物料关闭组件包括固定地安装在容器的底部中的耐火内管，该内管具有穿过其在容器底部上方位置的至少一个开口。 耐火外管围绕内管安装并且穿过其中至少一个开口。 外管具有带有环形端面的下端。 外管能够相对于其内管在其轴向上可移动在打开位置之间，外管中的开口与内管中的开口对准，并且闭合位置被隔离以阻止熔融金属排放。 外管相对于内管从打开位置可能的轴向运动的长度足以使外管能够移动到另一闭合位置，在该闭合位置，开口彼此隔离，并且其中环形端表面密封地邻接 围绕内管延伸的环形表面，从而完全包围内管。

公开(公告)号：US4913324A

公开(公告)日：1990-04-03

申请号：US227880

申请日：1988-08-03

申请人： Ernst Luhrsen ,  Ullrich Hintzen ,  Raimund Bruckner

发明人： Ernst Luhrsen ,  Ullrich Hintzen ,  Raimund Bruckner

IPC分类号： B22D11/10 ,  B22D11/22 ,  B22D37/00 ,  B22D41/14 ,  B22D41/26

CPC分类号： B22D41/14

摘要： A rotary valve for controlling the discharge of molten metal in a substantially downward direction from a metallurgical vessel includes a refractory rotor rotatable about a substantially horizontal axis. The rotor has an outer peripheral surface, either conical or cylindrical, arranged symmetrically about the axis, and the rotor has therethrough a flow channel having inlet and outlet ports, at least the outlet port opening onto the outer surface. A refractory stator has therein a recess defined by an inner surface, either conical or cylindrical, complementary to the outer surface of the rotor, the stator having therethrough a discharge channel. The rotor fits within the recess in the stator, with the outer and inner surfaces thereof being complementarily positioned symmetrically about the axis. The stator and rotor are arranged in the region of the metal melt in the interior of a metallurgical vessel in and/or on the refractory lining of a side wall of the vessel and/or the refractory lining of the bottom of the vessel.

摘要翻译： 用于控制来自冶金容器的大致向下方向的熔融金属排放的旋转阀包括可围绕基本上水平的轴线旋转的耐火转子。 转子具有围绕轴线对称地设置的圆锥形或圆柱形的外周表面，并且转子具有穿过其中的流动通道，该流动通道具有入口和出口，至少出口通向外表面。 耐火材料定子在其中具有由与转子的外表面互补的圆锥形或圆柱形内表面限定的凹部，定子具有穿过其的排出通道。 转子装配在定子的凹槽内，其外表面和内表面围绕轴线对称地互相定位。 定子和转子布置在冶金容器内部的金属熔体区域内和/或在容器侧壁的耐火衬里和/或容器底部的耐火衬里中。

公开(公告)号：US4634685A

公开(公告)日：1987-01-06

申请号：US793687

申请日：1985-10-31

申请人： Siegfried Pohl ,  Ernst Luhrsen ,  Peter Jeschke ,  Ortwin Rave ,  Martin Kienow ,  Werner Richter

发明人： Siegfried Pohl ,  Ernst Luhrsen ,  Peter Jeschke ,  Ortwin Rave ,  Martin Kienow ,  Werner Richter

IPC分类号： B22D35/00 ,  B22D11/10 ,  B22D41/02 ,  B22D41/52 ,  B22D41/54 ,  C04B35/101 ,  C04B35/52

CPC分类号： B22D41/54 ,  C04B35/101

摘要： A refractory article for casting of liquid melts, especially steel, fabricated from a mixture of Al.sub.2 O.sub.3, graphite, a flux component, a synthetic resin binder and a metallic powder. The flux component contains a first flux with a melting point from 550.degree. to 900.degree. C. and a second flux that becomes active in the mixture in a temperature ranging from 1350.degree. and 1550.degree. C. The refractory article need not be heated before use, and the carbon contained therein, which determines the strength of the article, is retained for a much longer period during use, so that the article will have a long service life.

摘要翻译： 用于铸造由Al 2 O 3，石墨，助熔剂组分，合成树脂粘合剂和金属粉末的混合物制成的液体熔体，特别是钢的耐火制品。 助熔剂组分含有熔点为550-900℃的第一助熔剂和在1350℃至1550℃的温度范围内在混合物中变成活性的第二助熔剂。耐火制品在使用前不需要加热 ，并且确定制品的强度的其中包含的碳在使用期间保持较长时间，使得制品将具有较长的使用寿命。

公开(公告)号：US4268015A

公开(公告)日：1981-05-19

申请号：US011569

申请日：1979-02-12

申请人： Ernst Luhrsen ,  Godehard Sussmuth ,  Klaus Walden

发明人： Ernst Luhrsen ,  Godehard Sussmuth ,  Klaus Walden

IPC分类号： B22D11/10 ,  B22D41/50 ,  C21C7/00

CPC分类号： B22D11/10 ,  B22D41/50

摘要： A bottom outlet or discharge for metallurgical vessels includes a sleeve brick, a nozzle brick positioned in the sleeve brick, the nozzle brick having therethrough a discharge opening, and a highly wear-resistant tubular sleeve fitted within the discharge opening of the nozzle brick. The sleeve brick, the nozzle brick and the sleeve are formed of materials such that they have thermal expansions at 1400.degree. C. of from 1.0 to 1.15%, from 0.5 to 0.8% and from 1.1 to 1.25%, respectively.

摘要翻译： 用于冶金容器的底部出口或排放物包括套筒砖，位于套筒砖中的喷嘴砖，喷嘴砖通过其排出开口，以及装配在喷嘴砖的排出口内的高耐磨管状套筒。 套筒砖，喷嘴砖和套管由材料形成，使得它们在1400℃下的热膨胀分别为1.0至1.15％，0.5至0.8％和1.1至1.25％。

公开(公告)号：US5190716A

公开(公告)日：1993-03-02

申请号：US794056

申请日：1991-11-19

申请人： Raimund Bruckner ,  Hans Rothfuss ,  Albert Ott ,  Ernst Luhrsen

发明人： Raimund Bruckner ,  Hans Rothfuss ,  Albert Ott ,  Ernst Luhrsen

IPC分类号： B22D11/10 ,  B22D41/52 ,  B22D41/60 ,  C04B33/32 ,  C04B35/64

CPC分类号： B22D41/52 ,  B22D41/60

摘要： A ceramic part to be used in a high temperature environment and that is preheated prior to use is manufactured by a process including shaping the part and subjecting the part to a heat treatment operation. The heat treatment operation is performed at least partially on location at a position of use of the part in the high temperature environment by a heating device that also is operated to perform the preheating of the part.

摘要翻译： 在高温环境下使用并在使用前被预热的陶瓷部件通过包括成型该部件并对该部件进行热处理操作的工艺来制造。 热处理操作至少部分地通过也被操作以执行部件预热的加热装置在高温环境中使用该部件的位置的位置进行。

公开(公告)号：US5083688A

公开(公告)日：1992-01-28

申请号：US454502

申请日：1989-12-21

申请人： Ernst Luhrsen ,  Ullrich Hintzen ,  Raimund Bruckner

发明人： Ernst Luhrsen ,  Ullrich Hintzen ,  Raimund Bruckner

IPC分类号： B22D11/10 ,  B22D11/22 ,  B22D37/00 ,  B22D41/14 ,  B22D41/26

CPC分类号： B22D41/14

摘要： A rotary valve for controlling the discharge of molten metal in a substantially downward direction from a metallurgical vessel includes a refractory rotor rotatable about a substantially horizontal axis. The rotor has an outer peripheral surface, either conical or cylindrical, arranged symmetrically about the axis, and the rotor has therethrough a flow channel having inlet and outer ports, at least the outlet port opening onto the outer surface. A refractory stator has therein a recess defined by an inner surface, either conical or cylindrical, complementary to the outer surface of the rotor, the stator having therethrough a discharge channel. The rotor fits within the recess in the stator, with the outer and inner surfaces thereof being complementarily positioned symmetrically about the axis. The stator and rotor are arranged in the region of the metal melt in the interior of a metallurgical vessel in and/or on the refractory lining of a side wall of the vessel and/or the refractory lining of the bottom of the vessel.

公开(公告)号：US5072864A

公开(公告)日：1991-12-17

申请号：US582612

申请日：1990-09-14

申请人： Ernst Luhrsen ,  Andreas Schuler ,  Ullrich Hintzen

发明人： Ernst Luhrsen ,  Andreas Schuler ,  Ullrich Hintzen

IPC分类号： B22D41/54 ,  B22D41/32 ,  B22D41/36 ,  C04B41/45 ,  C04B41/50 ,  C04B41/81 ,  C04B41/85 ,  C04B41/87

CPC分类号： C04B41/009 ,  B22D41/36 ,  C04B41/4572 ,  C04B41/5006 ,  C04B41/5057 ,  C04B41/81 ,  C04B41/85 ,  C04B41/87 ,  C04B2111/0087

摘要： Disclosed are wearable carbon-containing refractory elements, such as wearable refractory parts of a slide valve for use in controlling flow of molten metal from a metallurgical vessel, which are impregnated with tar or other wear reducing agent. In order to prevent decarburization of the refractory elements, they are saturated in an aqueous borate solution and then dried, so that the borate will migrate outwardly toward the surfaces of the elements and form protective layers which will prevent infiltration of ambient air into the refractory material. Prior to saturation of the elements in the borate solution, the wearable surfaces of the elements, such as those surfaces which will be subject to contact with molten metal, are coated with film which will prevent saturation by the borate solution, such that no protective layer is formed at the wearable surfaces. This allows the tar or other wear reducing agent to migrate outwardly through the wearable surfaces so as to reduce wear caused by the molten metal.

摘要翻译： 公开了可穿戴含碳的耐火元件，例如用于控制来自冶金容器的熔融金属流动的滑阀的耐磨耐火部件，其浸渍有焦油或其它减磨剂。 为了防止耐火材料的脱碳，它们在硼酸水溶液中饱和，然后干燥，使得硼酸盐将朝向元件的表面向外迁移并形成保护层，这将防止环境空气渗入耐火材料 。 在硼酸盐溶液中的元素饱和之前，元件（例如将与熔融金属接触的那些表面）的可磨损表面涂覆有将阻止硼酸盐溶液饱和的膜，使得没有保护层 形成在可穿戴的表面上。 这样可以使焦油或其它磨损减少剂通过可磨损表面向外迁移，以减少由熔融金属引起的磨损。