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61. 发明授权

US4690386A Method of improving the service life of permeable refractory elements in bottoms of metallurgical vessels 失效
$Method of improving the service life of permeable refractory elements in bottoms of metallurgical vessels$
公开(公告)号：US4690386A
公开(公告)日：1987-09-01
申请号：US486844
申请日：1983-04-20
申请人： Guy Denier , Romain Henrion
发明人： Guy Denier , Romain Henrion
IPC分类号： C21C5/35 , C21C5/36 , C21C5/44 , C21C7/00 , F27D1/00 , F27D1/16 , F27D3/16
CPC分类号： F27D1/16 , C21C5/35 , C21C5/36 , C21C5/44 , C21C7/0087 , F27D1/003 , F27D2003/161 , F27M2003/025
摘要： The service life of permeable refractory elements is improved by conserving in a vessel a fluid slag formed during refining of a charge after a liquid metal has been cast by tipping the vessel, depositing and spreading the slag over the bottom by bringing the vessel back to its upright position, and leaving the slag to harden and set on the bottom, while a sufficient pressure is maintained in the permeable refractory elements to ensure a permanent flow of a stirring fluid.

62. 发明授权

US4541863A Method for the treatment of phosphuretted slag 失效
标题翻译：磷化渣的处理方法
公开(公告)号：US4541863A
公开(公告)日：1985-09-17
申请号：US615694
申请日：1984-05-29
申请人： Paul-Victor Riboud , Christian Gatellier
发明人： Paul-Victor Riboud , Christian Gatellier
IPC分类号： C21B3/06 , C21C5/36 , C21C7/064 , C21B3/04
CPC分类号： C21C5/36 , C21B3/06 , C21C7/064 , Y02W30/543
摘要： Process for the treatment of phosphuretted slag obtained by refining a molten bath, such as steel. The process according to the invention involves hot oxidizing the slag into which is blended, after refining, a pulverized solid adjuvant, strongly oxidizing and easily fusible upon contact with the slag. Among utilizable adjuvants, the carbonates of alkaline metals or alkaline earth metals are preferred, in particular sodium carbonate, which additionally, is a product currently utilized in the domain of the elaboration of metal, notably in iron metallurgy. The invention ensures a rapid passivation of the slag in stabilizing the phosphorus by forming phosphate and allowing in this manner the avoidance of the liberation of very toxic phosphenes which are produced naturally by cold hydrolysis.
摘要翻译：用于处理通过精炼熔融浴例如钢获得的磷酸化炉渣的方法。根据本发明的方法涉及对精炼后的粉末进行热氧化，所述炉渣在与炉渣接触时具有强氧化性和易熔融性。在可利用的佐剂中，碱金属或碱土金属的碳酸盐是优选的，特别是碳酸钠，此外还是目前在金属制备领域中使用的产品，特别是在铁冶金领域。本发明通过形成磷酸盐确保炉渣稳定磷的快速钝化，并允许以这种方式避免释放通过冷水解自然产生的非常有毒的磷氢化合物。

63. 发明授权

US4456477A Production of ultra-low phosphorus steel 失效
标题翻译：生产超低磷钢
公开(公告)号：US4456477A
公开(公告)日：1984-06-26
申请号：US498863
申请日：1983-05-27
申请人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
发明人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
IPC分类号： C21C5/32 , C21C1/04 , C21C5/35 , C21C5/36 , C21C5/34
CPC分类号： C21C5/36 , C21C5/35 , C21C1/04
摘要： A process for producing an ultra-low phosphorus steel containing 0.010% or less of phosphorus is disclosed, which comprises charging a desiliconized pig iron into a top- and bottom-blowing oxygen converter, introducing a slag-forming agent in a powdered form onto the molten iron together with the top-blowing oxygen and introducing a bottom-blowing gas selected from the group consisting of an inert gas, nitrogen gas, oxygen gas, carbon monoxide gas, carbon dioxide gas and mixtures thereof during the oxygen top-blowing or during both the oxygen top-blowing and the subsequent tapping.
摘要翻译：公开了一种含有0.010％以下的磷的超低磷钢的制造方法，其特征在于，将脱硅生铁装入上下吹氧转化器中，将粉末形成剂引入到熔融铁与顶吹氧气一起引入，并且在氧气吹制期间或在氧气吹入期间引入选自惰性气体，氮气，氧气，一氧化碳气体，二氧化碳气体及其混合物的底吹气体氧气顶吹和随后的攻丝。

64. 发明授权

US4451293A Slag-forming agent and process for producing the agent 失效
标题翻译：成矿剂及其制备方法
公开(公告)号：US4451293A
公开(公告)日：1984-05-29
申请号：US392510
申请日：1982-04-23
申请人： Minoru Kitamura , Toshiyuki Soejima , Tsutomu Hayashi , Hideo Matsui , Shigenori Fujisawa
发明人： Minoru Kitamura , Toshiyuki Soejima , Tsutomu Hayashi , Hideo Matsui , Shigenori Fujisawa
IPC分类号： C21C5/36 , C21C7/076 , C22B9/10
CPC分类号： C21C7/076 , Y02P10/242
摘要： A slag-forming agent comprising an aggregate of particulate material having a maximum diameter of 3.0 millimeters and containing at least 15 weight percent magnesium oxide, the aggregate being coated with from 5 to 20 weight percent cement, and a process for producing the agent in which the particulate material is wetted with water to form the aggregate, the wet aggregate is coated with cement and the wet coated aggregate is solidified as such or after being molded.
摘要翻译：一种成渣剂，其包含最大直径为3.0毫米并且含有至少15重量％的氧化镁的颗粒材料的聚集体，该聚集体涂覆有5至20重量％的水泥，以及一种制备该试剂的方法，其中颗粒材料用水润湿以形成骨料，湿骨料用水泥涂覆，湿涂层骨料本身或模制后固化。

65. 发明授权

US4447265A Method and composition for foaming slag in electric arc furnace 失效
标题翻译：电弧炉发泡渣的方法和组成
公开(公告)号：US4447265A
公开(公告)日：1984-05-08
申请号：US507767
申请日：1983-06-27
申请人： John W. Schwer
发明人： John W. Schwer
IPC分类号： C21C5/36 , C21C5/52 , C21C5/54 , C21C7/00 , C22B9/10
CPC分类号： C21C5/5211 , C21C1/02 , C21C5/54 , C21C7/00 , C21C2005/366 , C21C2300/02 , Y02P10/216
摘要： A slag-foaming composition and process for use in electric arc furnace steelmaking. The compositions comprise from about 15 to 80 wt % of a carbon source, the remainder consisting substantially of a source of an oxide of calcium; alternatively, the compositions comprise from about 15 to 30 wt % of a carbon source, the remainder consisting substantially of dolomite lime. The process consists of the addition, in the course of steelmaking using an electric arc furnace, of the steelmaking additive compositions of the invention to the charge subsequent to the initial scrap steel melt down.
摘要翻译：炉渣发泡组合物及其在电弧炉炼钢中的应用。组合物包含约15至80重量％的碳源，其余部分基本上由钙的氧化物源组成; 或者，组合物包含约15至30重量％的碳源，其余部分基本上由白云石石灰组成。该方法包括在使用电弧炉的炼钢过程中将本发明的炼钢添加剂组合物与初始废钢熔融之后的装料相加。

66. 发明授权

US4417924A Steelmaking additive composition 失效
标题翻译：炼钢添加剂组成
公开(公告)号：US4417924A
公开(公告)日：1983-11-29
申请号：US431540
申请日：1982-09-30
申请人： John W. Schwer
发明人： John W. Schwer
IPC分类号： C21C5/36 , C21C7/076 , C22B9/10
CPC分类号： C22B9/10 , C21C5/36 , C21C7/076 , Y02P10/242
摘要： Steelmaking additive compositions and process of use, said compositions providing flux solubilization, desulfurization and/or removal of inclusions. The compositions comprise from about 25 to 50 wt % lime and about 75 to 50 wt % calcium aluminate; alternatively, the compositions comprise from about 40 to 70 wt % CaO, 20 to 50 wt % Al.sub.2 O.sub.3 and 0 to 30 wt % MgO. The process consists of the addition, in the course of steelmaking utilizing electric furnace, basic oxygen furnace, AOD furnace or open hearth furnace means, of the steelmaking additive compositions of the invention to either the furnace, ladle and/or tundish.
摘要翻译：炼钢添加剂组合物和使用方法，所述组合物提供助熔剂溶解，脱硫和/或除去夹杂物。组合物包含约25至50重量％的石灰和约75至50重量％的铝酸钙; 或者，组合物包含约40至70重量％的CaO，20至50重量％的Al 2 O 3和0至30重量％的MgO。该方法包括在本发明的炼钢添加剂组合物中使用电炉，碱性氧炉，AOD炉或敞开式炉装置的炼钢过程中加入炉子，钢包和/或中间包。

67. 发明授权

US4260414A Process for recovering and utilizing useful substances from molten metal produced during reduction treatment of steel slag 失效
标题翻译：在钢渣还原处理过程中产生的熔融金属中回收利用有用物质的方法
公开(公告)号：US4260414A
公开(公告)日：1981-04-07
申请号：US44375
申请日：1979-06-01
申请人： Gyoichi Suzuki , Ryo Ando , Tatsuo Koyama , Shoji Kubodera , Renichi Kondo
发明人： Gyoichi Suzuki , Ryo Ando , Tatsuo Koyama , Shoji Kubodera , Renichi Kondo
IPC分类号： C22B7/04 , C01B25/02 , C01B25/027 , C04B7/14 , C05B5/00 , C21B3/06 , C21B15/00 , C21C5/32 , C21C5/36 , C22B34/12 , C22B34/22 , C22B47/00 , C22C35/00 , C21B3/04
CPC分类号： C21C5/32 , C01B25/027 , C05B5/00 , C21B3/06 , C21C5/36 , C22C35/005 , Y02P10/216 , Y02W30/543 , Y10S75/958
摘要： A process for recovering and utilizing useful substances from a molten metal produced, when manufacturing a steel slag cement from a steel slag discharged from a top-blowing oxygen converter, during a reduction treatment of steel slag, which comprises the steps of: subjecting, in an acidic refining furnace, said molten metal to a primary oxidation refining treatment and a secondary oxidation refining treatment to recover a primary slag containing a large amount of TiO.sub.2 and SiO.sub.2 and a secondary slag containing a large amount of MnO and V.sub.2 O.sub.5, said primary slag being utilized as a blast furnace burden raw material serving as a TiO.sub.2 source, and said secondary slag being utilized as a raw material for producing ferromanganese and ferrovanadium; then, subjecting, in a basic Kaldo furnace, said molten metal to an oxidation refining treatment several times to recover a low-phosphorus high-quality steel and a slag, said slag being utilized as a Thomas phosphoric fertilizer.
摘要翻译：在钢渣的还原处理期间，当制造从顶吹氧气转炉排出的钢渣中制造钢渣水泥时，从生产的熔融金属中回收利用有用物质的方法，该方法包括以下步骤：酸性精炼炉，所述熔融金属进行一次氧化精炼处理和二次氧化精炼处理，以回收含有大量TiO 2和SiO 2的主渣，以及含有大量MnO和V2O5的二次渣，所述主渣为用作作为TiO 2源的高炉负荷原料，所述二次炉渣用作生产铁锰和铁钒的原料; 然后在基本的卡尔多瓦炉中将熔融金属进行几次氧化精炼处理以回收低磷优质钢和渣，所述炉渣用作托马斯磷肥。

68. 发明授权

US4101312A Method for operation of a converter 失效
标题翻译：转换器运行方法
公开(公告)号：US4101312A
公开(公告)日：1978-07-18
申请号：US701943
申请日：1976-07-01
申请人： Yozo Takemura , Shigeyoshi Fukuda , Sadashi Ogino
发明人： Yozo Takemura , Shigeyoshi Fukuda , Sadashi Ogino
IPC分类号： C21C5/28 , C21C5/36 , C21C7/00
CPC分类号： C21C7/0087 , C21C5/28 , C21C5/36 , Y02P10/212
摘要： Method for operation of a converter, wherein formed slag is made inert by lowering its temperature through adding of cooling medium, such as burntlime, burnt dolomite, limestone, dolomite, scrapbrick, converter slag, etc. immediately after shutdown of the oxygen blowing for refining, thus improving the productivity as well as the quality of steel.
摘要翻译：一种转炉运行方法，其中通过在关闭氧气吹炼之后立即加入冷却介质，如煅烧白炽灯，白云石，石灰石，白云石，废料砖，转炉炉渣等，通过降低其温度使成型炉渣变得惰性。，从而提高钢的生产率和质量。

69. 发明授权

US4053302A Synthetic fluorspar for conditioning electric furnace slags 失效
标题翻译：用于调节电火花渣的合成荧光粉
公开(公告)号：US4053302A
公开(公告)日：1977-10-11
申请号：US776697
申请日：1977-03-11
申请人： Ralph H. Nafziger , Henry E. Blake, Jr.
发明人： Ralph H. Nafziger , Henry E. Blake, Jr.
IPC分类号： C21C5/36 , C21C5/52
CPC分类号： C21C5/52 , C21C5/36 , Y02P10/216
摘要： A calcium fluoride-containing composition for use in conditioning electric furnace steelmaking slags is prepared from by-product scrubber solutions derived from wet-acid processing of phosphate rock by reacting the scrubber solution with calcium hydroxide.

70. 发明授权

US4039320A Reducing material for steel making 失效
标题翻译：减少炼钢材料
公开(公告)号：US4039320A
公开(公告)日：1977-08-02
申请号：US667617
申请日：1976-03-17
申请人： Masazi Uemura
发明人： Masazi Uemura
IPC分类号： C21C5/36 , C21C7/064 , C21C7/076 , C21C7/02
CPC分类号： C21C7/064 , C21C5/36 , C21C7/076 , Y02P10/242
摘要： During the reducing period in steel making, particularly in the making of stainless steel, the reduction of oxides in the slag and desulphurization of the molten steel are promoted by adding a reducing material, which is prepared by mixing uniformly aluminum powder and lime and the, like and compression molding the mixture into a desired shape.
摘要翻译：在炼钢的还原期间，特别是在制造不锈钢时，通过加入通过均匀混合铝粉和石灰制备的还原材料，促进了炉渣中氧化物的还原和钢水的脱硫，并将混合物压缩成所需的形状。

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