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41. 发明授权

US5211218A Melting and casting plant chamber 失效
标题翻译：熔铸厂房
公开(公告)号：US5211218A
公开(公告)日：1993-05-18
申请号：US724432
申请日：1991-06-28
申请人： Wolfgang Reuter , Josef Gediga
发明人： Wolfgang Reuter , Josef Gediga
IPC分类号： B22D27/15 , B22D47/00 , C21C7/10 , F27B14/04 , F27B14/06 , F27B14/08 , F27D1/18 , F27D21/02
CPC分类号： B22D47/00 , B22D27/15 , C21C7/10 , F27B14/04 , F27D1/1858 , F27B14/061 , F27B14/0806 , F27D21/02 , Y02P10/253
摘要： A melting and casting plant for operation at least under a vacuum and having a vacuum chamber. A wall of the vacuum chamber of the plant is angularly fashioned and is composed of a stationary part and of a swivellable part, the swivellable part being hinged to the stationary part. A door (ingot mold door) is provided in the swivellable part. The shape of the chamber wall and a linking axis of the swivellable part are fashioned or arranged, such that, when the chamber is opened, articles situated in the interior of the chamber are readily accessible. In comparison to the prior art, improved operations of the system, particularly regarding the chamber, is possible.
摘要翻译：一种熔化和铸造设备，用于至少在真空下操作并具有真空室。植物的真空室的壁成角度地形成，并且由固定部分和可转动部分组成，可转动部分铰接到固定部分。可旋转部件设有门（铸模门）。室壁的形状和可旋转部分的连接轴线被形成或布置成使得当腔室打开时，位于腔室内部的物品容易接近。与现有技术相比，系统的改进操作，特别是关于腔室的操作是可能的。

42. 发明授权

US5110351A Method of promoting the decarburization reaction in a vacuum refining furnace 失效
标题翻译：在真空精炼炉中促进脱碳反应的方法
公开(公告)号：US5110351A
公开(公告)日：1992-05-05
申请号：US639619
申请日：1991-01-10
申请人： Phillip B. Hunter , Chang-Long Chou , Muh-Shuh Wang
发明人： Phillip B. Hunter , Chang-Long Chou , Muh-Shuh Wang
IPC分类号： C21C7/10
CPC分类号： C21C7/10
摘要： This invention describes a method to promote the decarburization reaction of the molten steel in a vacuum refining furnace by adding manganese ore into the molten steel.The added manganese ore melts and release oxygen into the steel bath with the additional dissolved oxygen content effectively promoting the decarburization reaction of carbon steel, even below the 50 ppm level of ultra-low carbon content. The addition of the manganese ore increases the oxygen content of molten steel and enables the vacuum degassification treatment to have an effect similar to that of gaseous oxygen blowing without the excessive refractory erosion of the vacuum chamber lining. In this manner, baths having relatively high carbon contents and/or low dissolved oxygen contents can be effectively decarburized to ultra low carbon levels. This invention and the addition technique are not limited in application to RH vacuum-degassing equipment. Most vacuum furnaces are in general suitable for applying this manganese ore addition for the purpose of facilitating the production of ultra-low carbon steel.
摘要翻译：本发明描述了一种在真空精炼炉中通过向钢水中加入锰矿来促进钢水的脱碳反应的方法。添加的锰矿石熔融并释放氧气进入钢液中，附加的溶解氧含量有效促进了碳钢的脱碳反应，甚至低于50 ppm的超低碳含量水平。锰矿石的添加增加了钢水的氧含量，使得真空脱气处理具有类似于气氧吹制的效果，而不会对真空室衬里进行过多的耐腐蚀。以这种方式，具有相对较高碳含量和/或低溶解氧含量的浴可以有效地脱碳至超低碳水平。本发明和添加技术不限于RH真空脱气设备。大多数真空炉通常适用于这种锰矿石添加剂，以便于生产超低碳钢。

43. 发明授权

US4979983A Process for vacuum degassing and decarbonization with temperature drop compensating feature 失效
标题翻译：具有降温补偿功能的真空脱气脱碳方法
公开(公告)号：US4979983A
公开(公告)日：1990-12-25
申请号：US369269
申请日：1989-06-21
申请人： Hiroshi Nishikawa , Kyoichi Kameyama , Ryuichi Asaho
发明人： Hiroshi Nishikawa , Kyoichi Kameyama , Ryuichi Asaho
IPC分类号： C21C7/10
CPC分类号： C21C7/10
摘要： A process of degassing and decarbonizing is directed to a process for performing vacuum degassing non-deoxidized or slightly deoxidized molten steel utilizing RH process or DH process. The process includes blowing of oxygen or oxygen containing gas toward the surface of the molten steel in a vacuum chamber for promoting decarbonizing reaction. The process further includes a step of combustioning of CO gas in the vicinity of the surface of the molten metal at a timing, in which concentration of (CO+CO.sub.2) in an exhaust gas is higher than or equal to 5% and a ratio of CO.sub.2 versus (CO+CO.sub.2) in the exhaust gas is approximately 30%. Heat generated by combustioning of CO gas is utilized for compensating temperature drop of the molten steel.

44. 发明授权

US4810286A Method for reducing dissolved oxygen and carbon contents in molten steel 失效
标题翻译：降低钢水溶解氧和碳含量的方法
公开(公告)号：US4810286A
公开(公告)日：1989-03-07
申请号：US209863
申请日：1988-06-22
申请人： Mark R. Schlichting , Marian Szatkowski
发明人： Mark R. Schlichting , Marian Szatkowski
IPC分类号： C21C7/10
CPC分类号： C21C7/10
摘要： The carbon and dissolved oxygen contents of molten steel are reduced by a vacuum degassing treatment which may employ oxygen blowing. A determination is made of the idealized trajectory or path reflecting the change in carbon content and dissolved oxygen content, between atmospheric pressure and a preselected sub-atmospheric pressure at which the vacuum degassing treatment occurs. The idealized trajectory also reflects the effect of extraneous factors on the carbon content, dissolved oxygen content and temperature of the molten steel during the treatment. A selection is made of the boundaries of the idealized trajectory based upon the permissible limits of carbon content, dissolved oxygen content and temperature at the end of the vacuum degassing treatment. Adjustments are made at the beginning of the treatment and periodically throughout the treatment to maintain all three parameters, carbon content, dissolved oxygen content and temperature, within the boundaries of the idealized trajectory. The adjustments employ procedures extraneous to the vacuum degassing treatment.
摘要翻译：通过可以使用吹氧的真空脱气处理来降低钢水的碳和溶解氧含量。确定反映碳含量和溶解氧含量的变化的理想化轨迹或路径，在大气压和发生真空脱气处理的预选的次大气压之间。理想化的轨迹还反映了处理过程中外来因素对钢水的碳含量，溶解氧含量和温度的影响。根据允许的碳含量极限，溶解氧含量和真空脱气处理结束时的温度，选择理想化轨迹的边界。在治疗开始时进行调整，并在整个治疗期间定期维持理想化轨迹边界内的所有三个参数，碳含量，溶解氧含量和温度。调整采用与真空脱气处理无关的程序。

45. 发明授权

US4718940A Method of manufacturing alloy for use in fabricating metal parts 失效
标题翻译：用于制造金属部件的合金的制造方法
公开(公告)号：US4718940A
公开(公告)日：1988-01-12
申请号：US859616
申请日：1986-05-05
申请人： Kerry A. McPhillips
发明人： Kerry A. McPhillips
IPC分类号： C21C7/068 , C21C7/10 , C22C1/02
CPC分类号： C21C7/10 , C21C7/0685 , C22C1/02
摘要： A method is provided for producing a quantity of high grade metal alloy containing reactive elements, such as aluminum and titanium in a nickel, cobalt or iron base. According to the method of the invention a master heat of ingot containing reactive elements, such as aluminum and titanium in a nickel, cobalt or iron base is formed by some vacuum melting process, such as by vacuum- induction melting. A second, larger master heat of ingot of air-melting grade material is formed, as by argon oxygen decarburization with no reactive elements present. The two ingots are mechanically joined together to form one ingot which is subsequently remelted in the investment casting process. The resulting blend produces a standard alloy which means the metallurgical specifications for metal used in the investment casting of gas turbine components for use in aircraft, and components for turbochargers for use in internal combustion powerplants.
摘要翻译：提供一种用于在镍，钴或铁基体中生产含有诸如铝和钛的反应性元素的高级金属合金的量的方法。根据本发明的方法，通过一些真空熔化法，例如通过真空感应熔化，形成含有镍，钴或铁基体中的诸如铝和钛的反应性元素的锭的主热。形成第二个较大的气溶胶级材料的主热，因为没有反应元素存在的氩氧脱碳。两个锭机械连接在一起形成一个锭，随后在熔模铸造过程中重新熔化。所得到的混合物产生标准合金，这意味着用于在飞机中使用的燃气轮机部件的熔模铸造中使用的金属的冶金规格，以及用于内燃机中的用于涡轮增压器的部件。

46. 发明授权

US4655826A Method for post-melting treatment of molten steel 失效
标题翻译：钢水熔融后处理方法
公开(公告)号：US4655826A
公开(公告)日：1987-04-07
申请号：US859851
申请日：1986-05-01
申请人： Charles W. Finkl
发明人： Charles W. Finkl
IPC分类号： C21C5/52 , C21C7/10
CPC分类号： C21C5/52 , C21C7/10 , Y02P10/216
摘要： Molten steel is refined by a method that includes the steps of isolation from contact with the ambient and atmosphere, motion of the molten steel so that portions of the molten steel remote from the surface up to the surface, and addition of heat to the portions of the molten steel at the surface from a heating arc.
摘要翻译：熔融钢通过包括隔离与环境和大气接触的步骤，钢水运动的步骤进行精炼，使得钢水部分远离表面直到表面，并将热量加到来自加热电弧的表面的钢水。

47. 发明授权

US4555264A Process for producing steel for an electrical steel sheet 失效
标题翻译：电工钢板用钢的制造方法
公开(公告)号：US4555264A
公开(公告)日：1985-11-26
申请号：US411552
申请日：1982-08-25
申请人： Takeaki Takeshita , Katuyuki Oba , Yoshiaki Shimoyama , Takashi Masuda
发明人： Takeaki Takeshita , Katuyuki Oba , Yoshiaki Shimoyama , Takashi Masuda
IPC分类号： B22D11/11 , C21C7/10 , C21C7/06
CPC分类号： B22D11/11 , C21C7/10
摘要： The present invention relates to a process for producing an electrical steel sheet. In order to prevent aging deterioration of the electrical steel sheet, the carbon content of the steel for the sheet should be reduced to an extremely low level, e.g., 0.0030% or less. However, when molten steel was subjected to vacuum-degassing and continuous-casting procedures to prepare steel for a electrical steel sheet in a prior art, although a desired carbon content of the molten steel was ensured at the degassing stage, the carbon content of the steel sometimes exceeded the desired level at the slab range. In the present invention, the prior art problem is solved by carrying out the degassing procedure under conditions in which the ultimate degree of vacuum in the degassing vessel is 1.0 mmHg or less, the rate of inert gas blown per gas-blowing orifice is from 30 to 150 Nl/min, and the final carbon content of the molten steel is 0.0030% or less and by using means contacting the melt during the continuous-casting procedure, the carbon content of said means being 3.0% or less.
摘要翻译：本发明涉及电工钢板的制造方法。为了防止电工钢板的老化劣化，应将钢板的碳含量降低至非常低的水平，例如0.0030％以下。然而，在现有技术中，当钢水进行真空脱气和连续铸造处理以制备电工钢板时，尽管在脱气阶段确保了所需钢水的碳含量，钢板有时在板坯范围内超出了所需的水平。在本发明中，现有技术的问题是通过在脱气容器的最终真空度为1.0mmHg以下的条件下进行脱气处理而得到的，每个吹气孔的惰性气体的吹入速率为30 至150Nl / min，钢水的最终碳含量为0.0030％以下，通过在连续铸造工序中与熔体接触的方式，所述装置的碳含量为3.0％以下。

48. 发明授权

US4389042A Vacuum degassing apparatus 失效
标题翻译：真空脱气装置
公开(公告)号：US4389042A
公开(公告)日：1983-06-21
申请号：US336898
申请日：1982-01-04
申请人： Peter J. Wynne
发明人： Peter J. Wynne
IPC分类号： C21C7/10 , C21B7/10
CPC分类号： C21C7/10
摘要： A vacuum degassing apparatus has first and second degassing vessels each separately mounted for independent horizontal movement from a first operative position to a second repair position. In addition, each vessel is independently mounted for vertical movement in each position so that a pair of nozzles extending from its lower end to be immersed into a ladle of hot metal when the vessel is at its operative position whereby a degassing operation may be performed. Also, when the vessel is in its repair position, it may be lowered to permit repair or replacement of the nozzles or the vessel bottom as may be required. A vacuum conduit is pivotally connected to each vessel and to a fixed vacuum conduit to maintain the vacuum connection while the vessel is being moved into and out of its various positions.
摘要翻译：真空脱气装置具有分别安装的第一和第二脱气容器，用于从第一操作位置到第二修理位置的独立水平运动。此外，每个容器独立地安装成用于每个位置的垂直运动，使得当容器处于其操作位置时，一对喷嘴从其下端延伸以浸入铁水包中，从而可进行脱气操作。此外，当船只处于其修理位置时，可以将其降低以允许根据需要修理或更换喷嘴或容器底部。真空管道可枢转地连接到每个容器和固定的真空管道，以在容器移入和移出其各个位置时保持真空连接。

49. 发明授权

US4378242A Vacuum purification of liquid metal 失效
标题翻译：真空净化液态金属
公开(公告)号：US4378242A
公开(公告)日：1983-03-29
申请号：US367262
申请日：1982-04-12
申请人： Ralph Harris , William G. Davenport
发明人： Ralph Harris , William G. Davenport
IPC分类号： C21C7/10
CPC分类号： C21C7/10
摘要： A bath of liquid steel containing metallic impurities is subjected to vacuum effective to cause emission from the bath surface of the metallic impurities as a bulk flow of rising gases. The surface of the bath is kept substantially free of surface contamination. The rising gases are disposed of to prevent reflux. The pressure is then returned to normal, and the treated steel recovered. Preferably, the chamber pressure is maintained at a level equivalent to 60% to 80% of the total vapor pressure of the liquid metal. Desirably, the liquid steel is lifted (for example, by using a gas), from a lower level in the bath to at least its surface to enhance circulation within the bath. Preferably the rising gases are condensed remote from the bath surface to prevent reflux. An apparatus suitable for treating molten metal to remove impurities includes a vacuum chamber enclosing a receptacle for a bath of molten metal, a gas outlet and an outlet for liquid condensate and vacuum pump means for applying a vacuum to the gas outlet. Two hollow legs lead downward from the bottom of the receptacle for immersion in a supply bath of molten metal. A condenser, above the liquid metal level in the receptacle, has surfaces for intercepting emitted gases and converting them to condensate. Means is provided for continuously injecting lifting gas into an up-leg to provide in it, upward circulation of metal and downward circulation in a down-leg. Preferably there is means at the top of up-leg for spraying liquid metal on the surface of the bath.
摘要翻译：含有金属杂质的液态钢浴受到真空有效的作用，使金属杂质的浴表面发生作为大量上升气体的流动。浴的表面基本上没有表面污染。处理上升的气体以防止回流。然后压力恢复正常，回收处理后的钢。优选地，室压力保持在液态金属的总蒸气压的60％至80％的水平。理想地，液态钢从浴中的较低水平提升（例如通过使用气体）至至少其表面以增强浴内的循环。优选地，上升气体远离浴面冷凝以防止回流。适用于处理熔融金属以去除杂质的装置包括一个包围用于熔融金属浴的容器的真空室，用于液体冷凝物的气体出口和出口以及用于向气体出口施加真空的真空泵装置。两个空心腿从容器的底部向下引导，以浸入熔融金属的供应槽中。在容器中的液体金属水平面之上的冷凝器具有用于拦截排放的气体并将其转化为冷凝物的表面。提供了用于将提升气体连续地注入上腿以提供金属向上循环并在下腿中向下循环的装置。优选地，在上部的顶部具有用于在浴的表面上喷射液态金属的装置。

50. 发明授权

US4161400A Methods of desulphurizing fluid materials 失效
标题翻译：脱硫流体材料的方法
公开(公告)号：US4161400A
公开(公告)日：1979-07-17
申请号：US838945
申请日：1977-10-03
申请人： William G. Wilson , D. Alan R. Kay
发明人： William G. Wilson , D. Alan R. Kay
IPC分类号： C21C1/02 , C21C7/064 , C21C7/10 , C21C7/00
CPC分类号： C21C7/10 , C21C1/02 , C21C7/064
摘要： A method for desulphurizing fluid materials such as molten iron, steel, stack gases, synthetic natural gases, boiler gases, coal gasification and liquification products and the like is provided in which one of the group rare earth oxides, rare earth fluocarbonates, rare earth oxyfluorides and mixtures thereof, including bastnasite concentrates are reacted at low oxygen potential, with the sulphur to be removed to form one of the group consisting of rare earth sulphides, rare earth oxysulphides and mixtures thereof. The low oxygen potential can be achieved by carrying out the reaction in the presence of vacuum, reducing gases, carbon, etc.
摘要翻译：提供一种稀土氧化物，稀土氟化碳，稀土氧氟化物中的一种，例如铁水，钢铁，烟气，合成天然气，锅炉气体，煤气化和液化产物等流体物质的脱硫方法及其混合物，包括硼砂矿浓缩物在低氧势下反应，待除去的硫形成由稀土硫化物，稀土氧硫化物及其混合物组成的组之一。低氧电位可以通过在真空存在下进行反应，还原气体，碳等来实现。

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