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公开(公告)号：US4779775A
公开(公告)日：1988-10-25
申请号：US897885
申请日：1986-08-19
CPC分类号： B22D41/58 , Y10S264/44
摘要： A casting nozzle designed such that the sticking of nonmetallic impurities to the outlet of the nozzle is prevented by blowing out a gas. The casting nozzle comprises a nozzle proper, an annular hollow chamber for gas blowing formed in the axial direction of the nozzle proper, and annularly arranged reticulate small holes for gas blowing communicating with the annular hollow chamber, the small holes opening at the outlet of the nozzle. The reticulate small holes are formed when organic filaments wound round a portion of the inside wall of the nozzle proper carbonize, volatilize, or shrink upon heating.
摘要翻译： 铸造喷嘴被设计成通过吹出气体来防止非金属杂质粘附到喷嘴的出口。 铸造喷嘴包括喷嘴本体，在喷嘴本体的轴向形成的用于鼓风的环形中空室，以及与环形中空室连通的用于气体吹送的环形布置的网状小孔， 喷嘴。 当在喷嘴的内壁的一部分上缠绕的有机细丝在加热时碳化，挥发或收缩时形成网状小孔。
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公开(公告)号：US4693401A
公开(公告)日：1987-09-15
申请号：US759638
申请日：1985-07-26
申请人： Takahiro Nishimura , Masao Ohnuma
发明人： Takahiro Nishimura , Masao Ohnuma
CPC分类号： B22D41/56
摘要： An apparatus for changing casting nozzles such as immersion nozzles easily, quickly, and reliably. The apparatus has a holder frame fixed to the bottom of a molten metal pouring device and defining a substantially C-shaped casting nozzle travel passageway composed of a new-nozzle insertion passage, an old-nozzle ejection passage extending parallel thereto in spaced-apart relationship, and a joint passage connecting the new-nozzle insertion passage and the old-nozzle ejection passage to each other, and having a casting position where the casting nozzle is held under compression; a spring box mounted in the holder frame and having outer side portions resiliently supported by springs on opposite sides of the holder frame across the casting nozzle travel passageway, the spring box having on inner sides thereof guide rails forming part of side portions of the casting nozzle travel passageway, a nozzle moving mechanism mounted on the holder frame for moving the casting nozzle along the guide rails; and a lifting mechanism for lifting the casting nozzle in unison with the spring box in response to movement of the casting nozzle along the guide rails until the casting nozzle is fittingly held against the bottom of the molten metal pouring device.
摘要翻译： 一种容易，快速，可靠地更换诸如浸入式喷嘴的喷嘴的装置。 该装置具有固定在熔融金属浇注装置的底部的支架框架，并且限定了基本上为C形的铸造喷嘴行进通道，其由新的喷嘴插入通道，与其间隔开的关系延伸的旧喷嘴喷射通道 以及将新喷嘴插入通路和旧喷嘴喷出通路相互连接并具有铸造用喷嘴保持压缩的铸造位置的接合通路; 安装在保持架框架中的弹簧箱，并且具有通过弹簧在支架框架的相对侧上弹性地支撑在铸造喷嘴行进通道上的外侧部分，弹簧箱的内侧具有形成铸造喷嘴的侧部的一部分的导轨 行进通道，安装在保持架上的喷嘴移动机构，用于沿着导轨移动铸造喷嘴; 以及提升机构，用于响应于铸造喷嘴沿着导轨的移动而与铸弹嘴一致地提升铸造喷嘴，直到铸造喷嘴适当地保持在熔融金属浇注装置的底部。
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公开(公告)号：US4660749A
公开(公告)日：1987-04-28
申请号：US774198
申请日：1985-09-09
CPC分类号： B22D41/40
摘要： A sliding nozzle apparatus for a molten metal holding vessel including a fixed nozzle member and a fixed plate therefor which are supported by an upper or fixed bracket secured to the vessel, and a movable nozzle member and a slidable plate therefor which are supported by a lower or movable bracket having one edge hinged to the upper bracket, while its opposite edge remote from its hinged connection to the upper bracket is removably connectable to the upper bracket to bring the slidable plate into contact with the fixed plate. A first set of coil springs are located adjacent to the edge of the lower bracket at which it is hinged to the upper bracket, and a second set of coil springs are located adjacent to the opposite edge of the lower bracket. The first set of coil springs are deflected to a greater degree than the second set of coil springs, or are, in other words, preloaded differently from the second set of springs.
摘要翻译： 一种用于熔融金属保持容器的滑动喷嘴装置，其包括固定喷嘴构件和固定板，其由固定到容器的上部或固定支架支撑，以及可移动喷嘴构件和可滑动板，其由下部 或具有与上支架铰接的一个边缘的可移动支架，而其远离其与上支架的铰接连接的相对边缘可拆卸地连接到上支架以使可滑动板与固定板接触。 第一组螺旋弹簧位于下支架的边缘附近，在该边缘处铰接到上支架，第二组螺旋弹簧位于下支架的相对边缘附近。 第一组螺旋弹簧偏转到比第二组螺旋弹簧更大的程度，或者换句话说，与第二组弹簧预加载。
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公开(公告)号：US4572828A
公开(公告)日：1986-02-25
申请号：US701425
申请日：1985-02-14
申请人： Nobuhiro Sato , Yuji Katsura , Haruyuki Ueno
发明人： Nobuhiro Sato , Yuji Katsura , Haruyuki Ueno
IPC分类号： C04B37/00 , C04B35/591 , C04B35/58
CPC分类号： C04B35/591
摘要： Method produces reaction sintered silicon nitride complex shapes. Parent material (moldings of silicon powder-cured resin) and bonding or joint material (silicon powder-uncured resin) are integrally connected by steps of heat-curing the resin in the joint, heating the body thus bonded together to pyrolyze the cured resin and sinter the silicon powder, the pyrolysis gas reducing oxide film on silicon, and sintered parent material and joint material are simultaneously nitrided and integrally connected by continuous silicon nitride.
摘要翻译： 方法产生反应烧结氮化硅复合物形状。 母材（硅粉末固化树脂的模制品）和接合或接合材料（硅粉未固化树脂）通过热固化接头中的树脂的步骤一体地连接，加热结合在一起的主体以使固化树脂热解， 烧结硅粉末，硅上的裂解气还原氧化膜，烧结母材和接头材料同时氮化并通过连续的氮化硅整体连接。
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公开(公告)号：US4564493A
公开(公告)日：1986-01-14
申请号：US602097
申请日：1984-04-20
申请人： Tsuneo Shintani , Soichi Kojima , Masuo Goto
发明人： Tsuneo Shintani , Soichi Kojima , Masuo Goto
IPC分类号： B22D41/52 , B28B1/24 , C04B35/101 , B28B3/22
CPC分类号： C04B35/101 , B22D41/52 , B28B1/24
摘要： A composition of flake graphite, binder clay and a refractory material is extruded from an auger machine into a mold to form a cylindrical graphitic casting nozzle brick. The mold includes a coaxial core terminating short of an extrusion die of the auger machine, so that the graphitic casting nozzle brick as extruded has a longitudinal bore with one end closed, with transverse holes being subsequently defined through the nozzle brick across the bore adjacent to the closed end. As an alternative, a coaxial core may be connected to an extrusion screw of the auger machine to define an axial through bore in the casting nozzle brick as the latter is extruded.
摘要翻译： 将片状石墨，粘结剂粘土和耐火材料的组合物从螺旋钻机挤出到模具中以形成圆柱形石墨铸造喷嘴砖。 该模具包括一个终止于螺旋钻机的挤出模头的同轴芯，使得挤出的石墨铸造喷嘴砖具有纵向孔，其一端封闭，随后通过喷嘴砖将横向孔定义成穿过相邻的孔 封闭的一面。 作为替代方案，同轴芯可以连接到螺旋钻机的挤压螺杆，以在铸造喷嘴砖中限定出轴向通孔，因为后者被挤出。
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公开(公告)号：US4539301A
公开(公告)日：1985-09-03
申请号：US586055
申请日：1984-03-05
申请人： Toshiaki Kaneko , Ichiro Takita , Hiroshi Shikano
发明人： Toshiaki Kaneko , Ichiro Takita , Hiroshi Shikano
IPC分类号： C04B35/043 , B22D41/02 , B22D41/32 , C04B35/01 , C04B35/101 , C04B35/103 , C04B35/48 , C04B35/52 , C04B35/54
CPC分类号： C04B35/013 , B22D41/02 , B22D41/32 , C04B35/101
摘要： Thin, flaky graphite-containing refractories are obtained by refining and processing naturally occurring minerals and possess a specific size of the extent of the surface of a flaky layer and a specific thickness of a flake. Such flaky graphite-containing refractories exhibit high endurance and are effective as lining materials particularly for steel making furnaces.
摘要翻译： 通过精炼和加工天然存在的矿物并且具有片状层的表面的程度和片状物的特定厚度的特定尺寸来获得薄的片状含石墨的耐火材料。 这种片状含石墨的耐火材料具有高耐久性，并且作为特别用于炼钢炉的衬里材料是有效的。
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7.发明授权Method and apparatus for preventing the inclusion of slag into the molten steel tapped from a converter 失效用于防止炉渣从转炉中抽出的钢水中的方法和装置
公开(公告)号：US4431169A
公开(公告)日：1984-02-14
申请号：US278117
申请日：1981-06-29
申请人： Koichiro Fuzii , Sueki Kubo
发明人： Koichiro Fuzii , Sueki Kubo
CPC分类号： C21C5/4653 , F27D3/14 , F27D3/15 , F27D3/1536
摘要： The method for preventing the inclusion of slag into the molten steel tapped from a converter is disclosed. Such method comprises immersing an elongated stopper in a molten steel contained in the converter until the stopper is positioned at a predetermined height above the inside opening of a tap hole, directing the elongated stopper to the inside opening irrespective of tilting of the converter such that the stopper could maintain the predetermined position while allowing a constant flow-out of the molten steel into the tap hole through the space formed between the stopper and the inside opening of the tap hole, and lowering the elongated stopper to close the tap hole when the slag floating above the molten steel is about to flow into the tap hole through the space, whereby the inclusion of the slag into the tapped molten steel can be prevented effectively. The apparatus which can efficiently conduct the above method is also disclosed.
摘要翻译： 公开了一种用于防止将炉渣包含在从转炉中抽出的钢水中的方法。 这种方法包括将细长的止动件浸入包含在转炉中的钢水中，直到止动器定位在抽头孔的内部开口上方的预定高度，将细长止动件引导到内部开口，而不管转换器的倾斜如何， 止挡件可以保持预定位置，同时允许钢水通过塞子和分接孔的内部开口之间形成的空间流出到出气孔中，并且当炉渣 浮在钢水上方即将通过该空间流入分接孔，从而可以有效地防止炉渣包含在水龙头中。 还公开了能够有效地进行上述方法的装置。
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公开(公告)号：US5259880A
公开(公告)日：1993-11-09
申请号：US731236
申请日：1991-07-17
申请人： Masayuki Fujita , Sueki Kubo , Hiroyuki Ito
发明人： Masayuki Fujita , Sueki Kubo , Hiroyuki Ito
CPC分类号： C21C5/4653 , C21B7/12 , C21C5/445 , F27D1/1673 , F27D1/1694 , F27D3/1527 , Y10S118/16
摘要： An impeller as used in a projecting construction apparatus for a concave section of a molten-metal-discharging hole is supported on a rotating shaft for redirecting flow of impinging projection material. The impeller includes a plurality of vanes which are attached to the rotating shaft with a specified twisting angle relative to the rotating shaft. A material supplying pipe is directed upon the plurality of vanes, so that, upon impingement of the projection material upon the plurality of vanes, the projection material is projected outwardly and in a direction nearly opposite to the predetermined direction of impingement of the projection material supplied through the material-supplying pipe.
摘要翻译： 在用于熔融金属排出孔的凹部的突出构造装置中使用的叶轮被支撑在用于重新引导冲击投影材料的流动的旋转轴上。 叶轮包括多个叶片，其相对于旋转轴以特定的扭转角度附接到旋转轴。 材料供给管被引导到多个叶片上，使得当突出材料撞击到多个叶片上时，突出材料向外突出并且沿与所提供的突出材料的预定冲击方向几乎相反的方向突出 通过供料管道。
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公开(公告)号：US4867932A
公开(公告)日：1989-09-19
申请号：US89294
申请日：1987-08-25
CPC分类号： B22D41/58 , Y10S264/44
摘要： A process is disclosed for making a casting nozzle wherein gas can be blown out through the outlet of the nozzle to prevent the sticking of nonmetallic impurities to the nozzle during use. Reticulate organic filaments in the form, e.g., of a net are applied around a preformed inner cylindrical refractory body having a pouring hole therein. An outer cylinder body is then formed around the inner cylinder body including the organic filaments. The entire body is then fired, whereby the organic filaments carbonize and evaporate, leaving a network of gas-permeable reticulate holes in the body. An outlet is drilled or cut in the fired body through the gas-permeable holes to the pouring holes. Accordingly, when the nozzle is in use, a blowing gas can be provided through the reticulate holes to the nozzle outlet to prevent the sticking of nonmetallic impurities.
摘要翻译： 公开了一种用于制造铸造喷嘴的方法，其中气体可以通过喷嘴的出口吹出，以防止非金属杂质在使用过程中向喷嘴粘附。 例如网状的网状有机细丝被施加在其内具有倾倒孔的预制的内圆柱形耐火材料体周围。 然后在包括有机细丝的内筒体周围形成外筒体。 然后烧结整个身体，由此有机细丝碳化和蒸发，在体内留下透气网状孔网。 在燃烧体中通过透气孔钻出或切割出口到排出孔。 因此，当使用喷嘴时，可以通过网孔向喷嘴出口提供吹气，以防止非金属杂质的粘附。
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公开(公告)号：US4832771A
公开(公告)日：1989-05-23
申请号：US174194
申请日：1988-03-28
申请人： Takashi Hamamatu , Nobuhiro Sato , Haruyuki Ueno
发明人： Takashi Hamamatu , Nobuhiro Sato , Haruyuki Ueno
IPC分类号： C04B37/00 , C04B35/584 , C04B35/591 , C04B35/64
CPC分类号： C04B35/591
摘要： A complex-shaped bonded body of silicon nitride having a high bonding strength of more than 30 kg/mm.sup.2 as flexural strength and continuously homogenous microstructure through the bonded portion can be obtained by the method comprising the following five steps:(a) molding a body from a mixture of silicon powder having a diameter of less than 44 .mu.m and non-oxide ceramics powder having a diameter of less than 44 .mu.m,(b) heating a molded body obtained by step (a) at a temperature of 600 to 1500.degree. C. in a non-oxide atmosphere such as nitrogen or argon gas to sinter said silicon powder and partially convert to silicon nitride retaining 60 to 100 wt. % unreacted silicon powder therein,(c) grinding a surface to be bonded together with other bodies of said presintered body obtained by step (b) to dispose of unreacted silicon thereon,(d) placing a bonding agent containing silicon powder having a diameter of less than 44 .mu.m and polycarboxy silane resin between two bonding surfaces prepared by step (c), pressing together and drying said bonding agent, and(e) sintering the two presintered bodies pressed together in nitrogen atmosphere at a temperature of 1200.degree. to 1500.degree. C. without melting said disposed unreacted silicon.
摘要翻译： 通过包括以下五个步骤的方法可以获得具有大于30kg / mm 2的高粘合强度的复合形状的粘合体，作为弯曲强度和通过粘合部分的连续均匀的微结构，（a）成型体 从直径小于44μm的硅粉混合物和直径小于44μm的非氧化物陶瓷粉末混合，（b）在600℃的温度下加热由步骤（a）得到的成型体，至 在非氧化物气氛如氮气或氩气中1500℃烧结所述硅粉，并部分转化成保留60至100重量％的氮化硅。 ％未反应的硅粉末，（c）将与步骤（b）获得的所述预烧结体的其它体相结合的表面研磨以在其上处理未反应的硅，（d）将包含直径为 （c）制备的两个粘合面之间的多羧基硅烷树脂，挤压在一起并干燥所述粘合剂，和（e）在氮气气氛中在1200℃至1500℃的温度下烧结两个预烧结体 不熔化所述未反应的硅。
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