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公开(公告)号：US09879331B2
公开(公告)日：2018-01-30
申请号：US14839354
申请日：2015-08-28
Inventor： Byagyadhar Bhoi , Barada Kanta Mishra , Raja Kishore Paramguru , Chinmaya Kumar Sarangi , Pravas Ranjan Behera , Priyanka Rajput , Partha Sarathi Mukherjee , Snigdha Priyadarshini
CPC classification number: C21C7/00 , C21B13/0026 , C21B13/125 , C21B15/00 , C21B15/02 , Y02P10/136
Abstract: The present invention relates to an eco-friendly and single step process for the preparation of high purity iron by using hydrogen plasma in a suitable smelting reactor furnace. Reduction of iron oxide in excess of 99% can be achieved by reducing the iron ore in hydrogen plasma smelting system. The product quality is greatly improved as there is no instance of coke inclusion which otherwise would have carried carbon, sulphur, phosphorous, silica, etc. with it. In addition, this greatly diminishes carbon dioxide emission thereby making the process highly eco-friendly in nature. Apart from these, the process produces water as the only by-product. The process takes care of the green house effect with the non-involvement of gases like carbon dioxide, carbon monoxide during the operation. Thus, the present process is developed to produce high pure iron in a hydrogen plasma reactor without using carbon as reductant which thereby reduces the carbon dioxide emission drastically.
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公开(公告)号：US09752202B2
公开(公告)日：2017-09-05
申请号：US14400908
申请日：2013-05-13
Applicant: POSCO
Inventor： Ja Yong Choi , Seung Min Han , Sun Koo Kim , Hee Ho Lee , Sang Yuel Jung , Young Jong Seo
IPC: B22D41/00 , C21C7/00 , C21C7/076 , B22D11/118 , B22D41/08 , B22D1/00 , B22D11/116 , C21C7/06
CPC classification number: C21C7/00 , B22D1/00 , B22D11/116 , B22D11/118 , B22D41/00 , B22D41/08 , C21C7/0075 , C21C7/06 , C21C7/076 , Y02P10/242
Abstract: Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process. Also, provided is a method for producing high cleanliness molten steel comprising a molten-steel supply device for supplying molten steel and a molten-steel refining device for containing and refining molten steel poured into the molten-steel supply device, wherein the method comprises: a molten-steel pouring step in which molten steel is poured from the molten-steel supply device into the molten-steel refining device; a droplet-forming step in which the molten steel which has been poured in is formed into droplets in the molten-steel refining device; a slag-pass-through step in which the molten steel which has been formed into droplets is dropped so as to pass through slag; and an inclusion-removing step in which residual inclusions in the molten steel, which has been formed into droplets, are removed while passing through the slag.
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公开(公告)号：US20170198862A1
公开(公告)日：2017-07-13
申请号：US15407000
申请日：2017-01-16
Applicant: Amsted Rail Company, Inc.
Inventor： Zhaoli Yang , Yue Zuo , Xuejun Zhu , Sijin Zhang , Chengqun Yan , Zhongxian Du , Jianfei Sun , Fuyang Cao , Dongye Yang
IPC: F17C1/02
CPC classification number: F17C1/02 , B22D41/00 , C21C5/46 , C21C7/00 , F17C2201/0109 , F17C2203/012 , F17C2203/0639 , F17C2203/066 , F17C2227/0157 , F17C2260/01 , F27D1/00
Abstract: A gas pressure tank structure including: a tank wall, a compression oil cylinder, a locking ring, a spring cylinder, a locating pin mounting hole, a dowel pinhole, a refractory brick, a guide mechanism, a sealing structure, an arc joint, an arc shaped tank bottom, a steel ladle stand, a tank cover, and a reinforcing board.
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4.发明申请公开(公告)号：US20170159140A1
公开(公告)日：2017-06-08
申请号：US15325561
申请日：2015-07-15
Applicant: HITACHI METALS, LTD.
Inventor： Takahiko KAMIMURA , Yuuichi HADANO , Kenta IMAZEKI , Katsuhiko OHISHI
IPC: C21C7/00 , C21C5/52 , C22B9/20 , C22C33/04 , C22C38/12 , C22C38/10 , C22C38/06 , C22C38/00 , C21C7/06 , C22C38/14
CPC classification number: C21C7/0006 , C21C5/5229 , C21C7/00 , C21C7/04 , C21C7/06 , C22B9/20 , C22C33/04 , C22C38/002 , C22C38/06 , C22C38/105 , C22C38/12 , C22C38/14
Abstract: The invention provides a maraging steel production method in which an oxide is added during an Mg oxide formation step, the production method including: the Mg oxide formation step in which Mg is added to molten steel and MgO is formed in the molten steel, during primary melting; a consumable electrode production step in which, after the Mg oxide formation step, the molten steel is solidified and a consumable electrode having residual MgO is obtained; and a vacuum arc re-melting step in which the consumable electrode is used and vacuum arc re-melting is performed.
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公开(公告)号：US20170067134A1
公开(公告)日：2017-03-09
申请号：US15353814
申请日：2016-11-17
Applicant: Southwire Company, LLC
Inventor： Victor F. Rundquist
CPC classification number: C22B9/026 , B01J19/10 , B01J2219/0877 , B06B3/00 , B22D1/002 , B22D1/005 , C21C7/00 , C22B9/02 , C22B9/05 , C22B15/006 , C22B19/32 , C22B21/06 , C22B21/064 , C22B26/22 , F27D27/00
Abstract: Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract translation: 公开了包含多个气体输送通道的超声波探头，以及包含在探针尖端附近的凹陷区域的超声波探头。 还公开了包含这些探针的超声波装置以及使用这些超声波装置的熔融金属脱气的方法。
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Patent Agency Ranking
公开(公告)号：US09528167B2
公开(公告)日：2016-12-27
申请号：US14542697
申请日：2014-11-17
Applicant: Southwire Company, LLC
Inventor： Victor F. Rundquist
IPC: C22B9/05 , C22B9/02 , B22D1/00 , B06B3/00 , B01J19/10 , F27D27/00 , C22B21/06 , C21C7/00 , C22B15/00 , C22B19/32 , C22B26/22
CPC classification number: C22B9/026 , B01J19/10 , B01J2219/0877 , B06B3/00 , B22D1/002 , B22D1/005 , C21C7/00 , C22B9/05 , C22B15/006 , C22B19/32 , C22B21/06 , C22B21/064 , C22B26/22 , F27D27/00
Abstract: Ultrasonic probes containing a plurality of gas delivery channels are described, as well as ultrasonic probes containing recessed areas near the tip of the probe. These probes can be used in ultrasonic devices, and the ultrasonic devices can be used in molten metal processing operations to reduce the amount of dissolved gasses and impurities in molten metals.
Abstract translation: 描述了包含多个气体输送通道的超声波探针，以及包含在探针尖端附近的凹陷区域的超声探头。 这些探针可用于超声波装置，超声波装置可用于熔融金属加工操作，以减少熔融金属中的溶解气体和杂质的量。
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公开(公告)号：US20160186290A1
公开(公告)日：2016-06-30
申请号：US15063226
申请日：2016-03-07
Applicant: Comanche Technologies, LLC
Inventor： Jay R. Hitchings , Jason Hitchings
CPC classification number: C22B9/023 , B22D43/004 , C04B41/009 , C04B41/4545 , C04B41/52 , C04B41/81 , C04B41/89 , C04B2111/00793 , C04B2111/00887 , C21B3/04 , C21C7/00 , F27D3/1545 , F27D15/00 , F27D99/00 , Y02W30/542 , Y02W30/94 , C04B35/185 , C04B38/0006 , C04B35/565 , C04B38/00 , C04B35/48 , C04B18/141 , C04B41/4578 , C04B41/5089
Abstract: Coatings comprising metallurgical slag are applied to refractory substrates having molten metal-contacting surfaces to create a chemically active and viscous surface that dramatically increases the ability of the treated substrate to remove slag, dross and other inclusions from a base metal alloy as it passes through or contacts the substrate. The refractory substrates include molten metal filters used by foundries and metal casters such as reticulated ceramic foam, cellular/honeycomb, silica mesh, and others that rely on their physical or sieving ability to remove particulate impurities from the base alloy being cast. The chemically active surfaces significantly increase filtration efficiency through a treatment process tailored to the specific chemistry of the alloy being filtered, such as ferrous metals that include iron, steel and more. Other refractory substrates such as aluminum oxide, magnesium oxide, zirconium oxide, aluminum silicate, silicon carbide (as common with reticulated ceramic foam filters) and the like may also include the coatings.
Abstract translation: 包括冶金炉渣的涂层被施加到具有熔融金属接触表面的耐火基材上，以产生化学活性和粘性的表面，其显着地增加了经过处理的基材当其通过时从贱金属合金去除渣，渣和其它夹杂物的能力，或者 接触基板。 耐火基材包括由铸造厂和金属脚轮如网状陶瓷泡沫，蜂窝状/蜂窝状，二氧化硅网等使用的熔融金属过滤器，其它依靠其物理或筛分能力从被铸造的基体合金中除去微粒杂质。 化学活性表面通过根据正在过滤的合金的具体化学特性的处理方法显着提高过滤效率，例如包括铁，钢等的黑色金属。 其它耐火基材如氧化铝，氧化镁，氧化锆，硅酸铝，碳化硅（与网状陶瓷泡沫过滤器一样）等也可以包括涂层。
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公开(公告)号：US20160060726A1
公开(公告)日：2016-03-03
申请号：US14839354
申请日：2015-08-28
Inventor： Byagyadhar Bhoi , Barada Kanta Mishra , Raja Kishore Paramguru , Chinmaya Kumar Sarangi , Pravas Ranjan Behera , Priyanka Rajput , Partha Sarathi Mukherjee , Snigdha Priyadarshini
CPC classification number: C21C7/00 , C21B13/0026 , C21B13/125 , C21B15/00 , C21B15/02 , Y02P10/136
Abstract: The present invention relates to an eco-friendly and single step process for the preparation of high purity iron by using hydrogen plasma in a suitable smelting reactor furnace. Reduction of iron oxide in excess of 99% can be achieved by reducing the iron ore in hydrogen plasma smelting system. The product quality is greatly improved as there is no instance of coke inclusion which otherwise would have carried carbon, sulphur, phosphorous, silica, etc. with it. In addition, this greatly diminishes carbon dioxide emission thereby making the process highly eco-friendly in nature. Apart from these, the process produces water as the only by-product. The process takes care of the green house effect with the non-involvement of gases like carbon dioxide, carbon monoxide during the operation. Thus, the present process is developed to produce high pure iron in a hydrogen plasma reactor without using carbon as reductant which thereby reduces the carbon dioxide emission drastically.
Abstract translation: 本发明涉及一种通过在合适的熔炼反应炉中使用氢等离子体制备高纯度铁的环保和单步法。 通过减少氢等离子体冶炼系统中的铁矿石，可以实现超过99％的氧化铁还原。 产品质量大大提高，因为没有焦炭夹杂物，否则将携带碳，硫，磷，二氧化硅等。 此外，这大大减少了二氧化碳的排放，从而使得该过程具有高度的环保性。 除此之外，该工艺生产的水是唯一的副产品。 该过程在运行过程中不涉及诸如二氧化碳，一氧化碳等气体，处理温室效应。 因此，本发明的方法是在氢等离子体反应器中生产高纯铁而不使用碳作为还原剂，从而显着地减少二氧化碳的排放。
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公开(公告)号：US09045810B2
公开(公告)日：2015-06-02
申请号：US14323671
申请日：2014-07-03
Applicant: Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
Inventor： Rebei Bel Fdhila , Jan-Erik Eriksson , Olof Hjortstam , Mohamed Ali Rahmani , Shiva Sander-Tavallaey , Ola Widlund , Hongliang Yang , Xiaojing Zhang
CPC classification number: C22B9/20 , C21B13/12 , C21B2300/04 , C21C5/527 , C21C7/00 , C21C2005/5276 , C21C2005/5288 , C21C2300/06 , F27D27/00 , F27D2019/0003 , Y02P10/216 , Y02P10/286
Abstract: A method for melting steel in an electric arc furnace (EAF). A hot heel is provided in the EAF. Metal scrap is loaded into the EAF. The metal scrap is melted in the EAF. The mass of the hot heel in relation to the mass of the metal scrap that is initially beyond the surface of the hot heel is a certain minimum. This minimum is 0.75 times the relation between the heat required to melt the metal scrap beyond the surface of the hot heel and the heat that can be taken from the hot heel without it being solidified when a theoretical heat balance calculation is applied as defined in a formula.
Abstract translation: 一种在电弧炉（EAF）中熔炼钢的方法。 EAF中提供热跟。 金属废料装入EAF。 金属废料在EAF中熔化。 热脚跟的质量相对于最初超过热跟鞋表面的金属废料的质量是一定的最小值。 这个最小值是熔化金属废料超过热跟部表面所需的热量之间的关系的0.75倍，而当热应力的理论热平衡计算应用如 式。
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公开(公告)号：US20150135901A1
公开(公告)日：2015-05-21
申请号：US14542697
申请日：2014-11-17
Applicant: Southwire Company, LLC
Inventor： Victor F. Rundquist
CPC classification number: C22B9/026 , B01J19/10 , B01J2219/0877 , B06B3/00 , B22D1/002 , B22D1/005 , C21C7/00 , C22B9/05 , C22B15/006 , C22B19/32 , C22B21/06 , C22B21/064 , C22B26/22 , F27D27/00
Abstract: Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract translation: 公开了包含多个气体输送通道的超声波探头，以及包含在探针尖端附近的凹陷区域的超声波探头。 还公开了包含这些探针的超声波装置以及使用这些超声波装置的熔融金属脱气的方法。
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