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41. 发明授权

US4198229A Method of dephosphorization of metal or alloy 失效
标题翻译：金属或合金脱磷方法
公开(公告)号：US4198229A
公开(公告)日：1980-04-15
申请号：US855265
申请日：1977-11-28
申请人： Hiroyuki Katayama , Makoto Inatomi , Hiroyuki Kajioka , Yasushi Nakamura , Michihisa Ito , Kazuumi Harashima , Takamasa Ohno
发明人： Hiroyuki Katayama , Makoto Inatomi , Hiroyuki Kajioka , Yasushi Nakamura , Michihisa Ito , Kazuumi Harashima , Takamasa Ohno
IPC分类号： C21C7/064 , C22B9/10 , C21C7/02
CPC分类号： C21C7/064 , C22B9/10
摘要： A carbon-unsaturated molten metal or molten alloy containing elements more oxidizable than iron such as chromium and silicon is dephosphorized by addition of a flux composition comprising calcium carbide and a halide of alkali earth metal such as calcium fluoride in a non-oxidizing atmosphere, and thereafter the slag as a by-product is stabilized against formation of undesirable gases. This method when employed in refining ferrochromium or crude stainless steel makes feasible dephosphorization, and it is particularly suited for economical production of low phosphorus stainless steel.
摘要翻译：通过在非氧化性气氛中加入包含碳化钙和碱土金属卤化物如氟化钙的助熔剂组合物，含有比铁，硅和硅更可氧化的元素的碳 - 不饱和熔融金属或熔融合金脱磷，此后，作为副产物的炉渣被稳定以防止不期望的气体的形成。该方法用于精炼铬铁或粗不锈钢时，可以实现脱磷，特别适用于经济生产低磷不锈钢。

42. 发明授权

US4186000A Salt-coated magnesium granules 失效
标题翻译：盐包衣的镁颗粒
公开(公告)号：US4186000A
公开(公告)日：1980-01-29
申请号：US936977
申请日：1978-08-25
申请人： Edward J. Skach, Jr. , George B. Cobel
发明人： Edward J. Skach, Jr. , George B. Cobel
IPC分类号： B22F9/06 , C21C1/10 , C21C7/04 , C21C7/064 , C22C1/04
CPC分类号： C21C1/105 , C21C7/0645
摘要： Small rotund salt-coated magnesium (or Mg alloy) granules, useful as an inoculant material or additive for molten metals, are prepared by adding a boron-containing dispersing agent to a molten salt mixture containing molten magnesium (or Mg alloy) stirring to effect good dispersion, and cooling the molten mixture to effect freezing of the magnesium as small rotund globules dispersed in a solid friable matrix. The frozen salt matrix is then pulverized to release the magnesium globules from the matrix, said globules still carrying a beneficial coating of the salt material.
摘要翻译：通过向含有熔融镁（或Mg合金）搅拌的熔融盐混合物中加入含硼分散剂来制备用作熔融金属的接种物质或添加剂的小圆形盐包覆的镁（或Mg合金）颗粒，良好的分散性，并且冷却熔融混合物以使分散在固体易碎基质中的小圆形小球冻结镁。然后将冷冻盐基质粉碎以从基质中释放出镁球，所述小球仍然携带盐材料的有益涂层。

43. 发明授权

US4169724A Desulfurization of iron melts 失效
标题翻译：铁熔化脱硫
公开(公告)号：US4169724A
公开(公告)日：1979-10-02
申请号：US881351
申请日：1978-03-08
申请人： Alfred Freissmuth , Werner Gmoehling , Heinrich Roeck , Peter Kniep
发明人： Alfred Freissmuth , Werner Gmoehling , Heinrich Roeck , Peter Kniep
IPC分类号： C21C1/02 , C21C7/06 , C21C7/064 , C21C7/02
CPC分类号： C21C7/064 , C21C1/02 , C21C7/06
摘要： Desulfurization of iron melts with alkaline earth metal containing carbidic or metallic materials by introducing the desulfurizing agents in a finely divided form with a consumable gas causing an exothermic reaction in an iron melt.
摘要翻译：通过将具有消耗性气体的精细分散形式的脱硫剂引入铁熔体中引起放热反应，铁的脱硫与含有碳水化合物或金属材料的碱土金属熔融。

44. 发明授权

US4123258A Process for the production of steel with increased ductility and for the desulfurization of a steel melt 失效
标题翻译：生产具有延展性和钢熔体脱硫的钢的方法
公开(公告)号：US4123258A
公开(公告)日：1978-10-31
申请号：US825103
申请日：1977-08-16
申请人： Wilhelm Klapdar , Helmut Richter , Heinrich-Wilhelm Rommerswinkel , Edgar Spetzler , Jochen Wendorff
发明人： Wilhelm Klapdar , Helmut Richter , Heinrich-Wilhelm Rommerswinkel , Edgar Spetzler , Jochen Wendorff
IPC分类号： C21C7/00 , C21C7/064 , C21C7/02
CPC分类号： C21C7/064 , C21C7/0037
摘要： A process for the production of steel with increased ductility in which a sulfur-containing steel melt is deoxidized and, if desired, is supplied with alloying elements, the deoxidized melt being treated with magnesium or with both magnesium and calcium as part of a purification action simultaneously reducing the sulfur content, and the reaction is carried out in a casting ladle having a lining free from siliceous oxides. The melt is covered with a synthetic slag free from siliceous oxides and the magnesium-containing substance is introduced in fine-grain particulate form into the melt in a carrier gas at a level at least 2000 mm below the melt surfade and at a rate which is less than the maximum rate at which the magnesium-containing substance is capable of reacting with the melt.
摘要翻译：用于生产具有增加的延性的钢的方法，其中含硫钢熔体被脱氧，并且如果需要，提供合金元素，所述脱氧的熔体用镁或镁和钙两者作为纯化作用的一部分同时降低硫含量，并且在具有不含硅氧化物的衬里的铸造钢包中进行反应。熔体用不含硅氧化物的合成炉渣覆盖，并且含镁物质以细晶粒状形式在载体气体中以至少2000mm低于熔体冲洗表面的水平以一定的速率被引入到熔体中小于含镁物质能够与熔体反应的最大速率。

45. 发明授权

US4097269A Process of desulfurizing liquid melts 失效
标题翻译：脱硫液体熔化工艺
公开(公告)号：US4097269A
公开(公告)日：1978-06-27
申请号：US753017
申请日：1976-12-21
申请人： Wolfgang Holzgruber
发明人： Wolfgang Holzgruber
IPC分类号： C21C7/064 , C21C7/02
CPC分类号： C21C7/064
摘要： A method for the rapid desulfurization of steel melts having oxygen available for reaction of less than 0.01% wherein the temperature of the melt is raised above 1500.degree. C, and a desulfurizing slag is injected into the melt using a non-oxidizing carrier gas. The slag is in a finely divided state and is specially prepared by mixing calcium oxide, calcium fluoride and aluminum oxide with silicane dioxide and heavy metal oxides, melting the mixture and cooling the melt to prefuse the slag. Thereafter, the prefused slag is comminuted into the finely divided state. This slag has a liquidous temperature such that the particles thereof become liquid at a temperature at least 150.degree. C below that of the steel melt and the particles are sufficiently small such that they become liquid immediately on contacting the melt. The process is advantageous in that it provides more rapid desulfurization and more complete desulfurization than prior art techniques.
摘要翻译：一种将氧气可用于低于0.01％的具有氧气的钢熔体快速脱硫的方法，其中熔体的温度升高到1500℃以上，并且使用非氧化性载气将脱硫炉渣注入到熔体中。炉渣处于细分状态，通过将氧化钙，氟化钙和氧化铝与二氧化硅和重金属氧化物混合，将混合物熔融并冷却熔融物以预渣，特别制备。此后，将预制的炉渣粉碎成细分的状态。该渣具有液态温度，使得其颗粒在比钢熔体低至少150℃的温度下变成液体，并且颗粒足够小，使得它们在熔体上立即变成液体。该方法的优点在于它比现有技术提供更快速的脱硫和更完全的脱硫。

46. 发明授权

US4094495A Method and apparatus for the production of quality steels 失效
标题翻译：生产优质钢的方法和设备
公开(公告)号：US4094495A
公开(公告)日：1978-06-13
申请号：US679118
申请日：1976-04-22
申请人： Horst Kutscher , Gernot Zahs
发明人： Horst Kutscher , Gernot Zahs
IPC分类号： C21C5/52 , C21C5/56 , C21C7/00 , C21C7/064 , C21C7/10 , C21B13/14
CPC分类号： C21C7/064 , C21C5/5264 , C21C5/56 , C21C7/0037 , C21C7/0075 , C21C7/10 , Y02P10/216
摘要： A method for producing steels within a very close analysis tolerance in which the raw materials are melted down in a first vessel, the melt is then tapped into a second vessel in which deslagging is accomplished, and thereafter the melt is subjected to treatment under a vacuum. An apparatus for carrying out the method is also described.
摘要翻译：一种在非常接近的分析公差内生产钢的方法，其中原料在第一容器中熔化，然后将熔体敲入第二容器中，其中完成脱渣，然后在真空下对熔体进行处理。还描述了用于执行该方法的装置。

47. 发明授权

US4093452A Refining liquid metal 失效
标题翻译：精炼液态金属
公开(公告)号：US4093452A
公开(公告)日：1978-06-06
申请号：US707060
申请日：1976-07-20
申请人： Gene Donald Spenceley , Neil Pigott
发明人： Gene Donald Spenceley , Neil Pigott
IPC分类号： C21C7/06 , C21C7/064 , C21C7/072 , C21C7/00
CPC分类号： C21C7/064 , C21C7/06 , C21C7/072
摘要： A method and apparatus for treating a bath of liquid iron or steel by submerged injection of a gas or gas-entrained particulate re-agents. Injection is through a tuyere occludable either by a stopper rod assembly or by a sliding gate valve and the bath treatment may include desulphurizing, deoxidizing, alloying or sulphide modifying.
摘要翻译：一种用于通过浸没注射气体或气体夹带的颗粒剂来处理液态铁或钢的浴的方法和装置。注射通过由塞杆组件或滑动闸阀封闭的风口，并且浴处理可包括脱硫，脱氧，合金化或硫化物改性。

48. 发明授权

US4069039A Method for desulfurization using arc heat under vacuum 失效
标题翻译：在真空下使用电弧热脱硫的方法
公开(公告)号：US4069039A
公开(公告)日：1978-01-17
申请号：US699072
申请日：1976-06-23
申请人： Albert L. Lehman
发明人： Albert L. Lehman
IPC分类号： C21C7/064 , C21C7/10 , C21C5/52 , C21C7/06
CPC分类号： C21C7/064 , C21C7/10
摘要： An apparatus and method for consistently and economically lowering the sulfur content of steel into the 0.003/0.006 range and preferably to 0.003 maximum, which involves conditioning the steel near the end of, or immediately after, melt-down in the melting unit, followed by subjection to a highly basic, fluidized slag and violent agitation under vacuum conditions.
摘要翻译：将钢的硫含量始终如一地经济地降低到0.003 / 0.006范围内，最好是0.003最大值的装置和方法，其中包括在熔化单元中熔化附近或之后立即对钢进行调节，随后是受到高碱性，流化渣和真空条件下的剧烈搅拌。

49. 发明授权

US4060407A Methods and apparatus for adding mischmetal to molten steel 失效
标题翻译：向钢水中加入稀土金属的方法和装置
公开(公告)号：US4060407A
公开(公告)日：1977-11-29
申请号：US744123
申请日：1976-11-22
申请人： Joseph R. Jackman
发明人： Joseph R. Jackman
IPC分类号： C21C7/00 , C21C7/064 , C22C23/06
CPC分类号： C21C7/00 , C21C7/064
摘要： A method, apparatus and alloy for adding mischmetal to molten steel by filling a metal canister with a mischmetal-magnesium alloy in the range 1% to 2.5% magnesium, plunging the metal canister beneath the surface of the steel bath being treated and holding the canister submerged in the bath until the mischmetal has dissolved.
摘要翻译：通过用金属镁镁合金将镁合金填充在1％至2.5％镁的范围内来填充金属罐的方法，装置和合金，用于将钢水加入到钢水中，将金属罐下面的金属罐浸入被处理并保持的罐淹没在浴缸中，直到混合液溶解。

50. 发明授权

US4014685A Manufacture of steel 失效
标题翻译：钢制造
公开(公告)号：US4014685A
公开(公告)日：1977-03-29
申请号：US523836
申请日：1974-11-14
申请人： Evan Thomas Richard Jones , Robert Anthony Fishburn
发明人： Evan Thomas Richard Jones , Robert Anthony Fishburn
IPC分类号： C21C7/00 , C21C7/064 , C21C7/02 , C22B9/10
CPC分类号： C21C7/064
摘要： The invention is concerned with the desulphurizing of molten steel by the use of a lime-based flux. In addition to lime the flux includes sodium carbonate, an alkali metal or alkaline earth metal fluoride, typically fluorspar, alumina and a metallic reducing agent. In particular, the reducing agent is aluminium or an alloy thereof and is present in an amount of 2 to 15% by weight. To desulphurize molten metal the flux is added to the molten metal in a vessel, typically by injecting the flux in particulate form into the molten metal.
摘要翻译：本发明涉及通过使用石灰基助熔剂对钢水进行脱硫。除石灰之外，助熔剂包括碳酸钠，碱金属或碱土金属氟化物，通常为氟石，氧化铝和金属还原剂。特别地，还原剂为铝或其合金，其含量为2〜15重量％。为了使熔融金属脱硫，助熔剂通常通过将颗粒形式的助熔剂注入熔融金属中而添加到容器中的熔融金属中。

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