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公开(公告)号：US11554398B2
公开(公告)日：2023-01-17
申请号：US16306283
申请日：2017-04-17
发明人： Viktor Khrist'yanovich Mann , Viktor Fedorovich Frolov , Aleksandr Vladimirovich Sal'nikov , Aleksandr Gennad'evich Pelevin , Roman Ilsurovich Galiev , Aleksandr Yur'evich Sidorov , Sergej Borisovich Sidel'nikov
IPC分类号： B21C23/08 , B21C33/00 , B21C29/00 , B21C23/00 , C22F1/04 , B21C29/04 , B22D11/00 , B21B15/00 , B21B1/46 , C22F1/047 , C22F1/05 , B22D11/06 , C22F1/043 , B29C48/00 , B22D11/12 , C22C21/00 , B21B3/00
摘要： A method for combined rolling and extruding of cast billet is proposed. When implementing the method for combined rolling and extruding of metals or alloys, a cast billet with a predetermined temperature is fed to the working gauge, in which it is rolled and then to the die, through which the cast billet is extruded. When the cast billet is fed into the working gauge, a cladding layer of metal or alloy is created on the surfaces of the rolls by extruding the cast billet through the gaps formed between the surfaces of the rolls and the die. This invention makes it possible to improve the quality of the resulting products, as well as to increase the efficiency of the process as a whole.
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公开(公告)号：US10246790B2
公开(公告)日：2019-04-02
申请号：US14654377
申请日：2012-12-21
发明人： Aleksandr Olegovich Gusev , Aleksey Gennad'evich Burtsev , Dmitriy Aleksandrovich Simakov , Aleksandr Leonidovich Voynich , Aleksandr Yur'evich Kolmakov
摘要： The invention relates to electrowinning of aluminum from cryolite-alumina melts, and can be used in the shunt design of a cathode assembly. In an aluminum electrolysis cell, cathode vertical metal shunts, are designed such that their top part is melted aluminum, and the bottom part is solid aluminum. Shunts are located in conduits made in a hearth slab lining which has a widening in the middle part which is wider than both parts of the shunts. The widening in the shunt conduit can be filled with a composite material, i.e. titanium diboride-carbon. The shunts can be designed as a tube, and the widening in the conduit and the space inside the tube can be filled with the composite material titanium diboride-carbon. The invention makes it possible to increase the electrical efficiency due to the absence of contact assemblies, reduced current loss, and achieving an effective current distribution and current shunting.
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公开(公告)号：US20170362726A1
公开(公告)日：2017-12-21
申请号：US15540535
申请日：2015-10-28
摘要： The invention relates to non-ferrous metallurgy, more particularly to producing aluminium by electrolysis, and even more particularly to a structural element for covering the space above a melt in an electrolysis cell for producing aluminium by the electrolysis of cryolite-alumina melts. In a cover for an electrolysis cell for producing aluminium, which is in contact with a vapour-gas phase when the electrolysis cell is in operation and which is in the form of central and peripheral sections which are movably arranged relative to each other, the central and peripheral sections are made from a corrosion-resistant and erosion-resistant material which comprises 80.0-99.0 wt % of fluorophlogopite and 20.0-1.0 wt % of a refractory filler. The central sections of the cover may be permanently fixed on each anode rod, and the peripheral sections may be configured as convex panels rigidly and removably fixed on the top surface of a cathode and supported by the central section of the cover. Moreover, the refractory filler may be chosen from the following chemical substances: clay, calcium fluoride, rutile, sodium aluminosilicate, fluorapophyllite, nepheline, olivine, magnesium fluoride, and spinel. The end and side joints of the central and peripheral covers may be coated with a sealant layer in the form of a layer of alumina, and the central section of the cover may be provided with apertures. The use of this invention provides for the hermetic sealing of the cover, the reliability and safety of the structure, and a reduction in energy consumption.
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公开(公告)号：US09822457B2
公开(公告)日：2017-11-21
申请号：US14437388
申请日：2012-10-25
发明人： Aleksandr Vladimirovich Proshkin , Samuil Yakovlevich Levenson , Vitaliy Valer'evich Pingin , Aleksey Vasil'evich Morozov
CPC分类号： C25C3/08 , B05C11/025 , B05C11/08
摘要： The invention relates to method and apparatus for lining the cathode of the electrolytic cell. The method comprises filling the cell's shell with powder material, leveling it with a rack, covering the fill material with a dust-proof film, and compaction. Compaction is performed in two stages: preliminary static and final dynamic treatment by consequent movement of static and dynamic work tools of compaction along the longitudinal axis of the cathode of the electrolytic cell through a cushion, which is made of at least 2 layers: a lower layer, which prevents pushing powder material forward in the direction of travel, and an upper layer, which provides for a coupling between the cushion and the static work tool. Static treatment unit of the apparatus, designed in the form of a roller with a drive, is connected to a dynamic treatment unit with a vibratory exciter by means of elastic elements.
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公开(公告)号：US20180274073A1
公开(公告)日：2018-09-27
申请号：US15764186
申请日：2016-04-29
发明人： Viktor Khrist'yanovich MANN , Aleksandr Nikolaevich ALABIN , Anton Valer'evich FROLOV , Aleksandr Olegovich GUSEV , Aleksandr Yur'evich KROKHIN , Nikolaj Aleksandrovich BELOV
摘要： The present invention relates to the field of metallurgy of high-strength cast and wrought alloys based on aluminum, and can be used for producing articles used in mission-critical designs operable under load, as well as in the transport field, sports industry and sports equipment, for producing casings for electronic devices, and in other engineering industries and industrial sectors. The technical result aims to enhance mechanical characteristics of the articles produced from the alloy by virtue of the precipitation hardening caused by the formation of secondary phases in the process of the age hardening while providing high workability during casting ingots and castings. The claimed high-strength alloy based on aluminum comprises zinc, magnesium, nickel, iron, copper, and zirconium, wherein it further comprises at least one metal selected from a group comprising titanium, scandium and chrome, with the following component ratios, wt %: zinc 3.8-7.4; magnesium 1.2-2.6; nickel 0.5-2.5; iron 0.3-1.0; copper 0.001-0.25; zirconium 0.05-0.2; titanium 0.01-0.05; scandium 0.05-0.10; chrome 0.04-0.15; and the remainder being aluminum, wherein iron and nickel advantageously form aluminides of the Al9FeNi phase, which originates from eutectic transformation and represents a volume percentage of at least 2 vol %.
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公开(公告)号：US10073049B2
公开(公告)日：2018-09-11
申请号：US15108096
申请日：2015-02-04
发明人： Yuliya Nikolaevna Zaytseva , Sergey Dmitrievich Kirik , Igor′ Stepanovich Yakimov , Petr Sergeevich Dubinin , Oksana Evgen'evna Piksina , Dmitriy Aleksandrovich Simakov , Aleksandr Olegovich Gusev , Sergey Grigor'evich Ruzhnikov
IPC分类号： G01N23/20 , G01N23/207 , C25C3/20 , G01N27/26 , C25C3/06
CPC分类号： G01N23/207 , C25C3/06 , C25C3/20 , G01N27/26 , G01N2223/637
摘要： This invention relates to producing aluminum by electrolysis of a melt and can be used in the process control of an electrolyte composition by quantitative X-ray phase analysis (XRD) of potassium-containing electrolyte with calcium or calcium and magnesium additives. A quantitative XRD method is employed for analyzing doped samples of crystallized bath samples taken from baths. A weighted ground bath sample is mixed with a weighted quantity of sodium fluoride at a ratio, for example, 1:2 by weight. The weighted quantities are mixed and placed in a furnace (650-750° C. for 20-40 minutes) to dissolve sodium fluoride in the sample and recrystallize the sample with the desired phase composition. The doped sample is placed in a furnace (420-450° C) and held for 15-30 minutes. The doped sample is removed from the furnace and allowed to air cool. The phase composition of the doped sample is analyzed by any quantitative X-ray phase method.
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公开(公告)号：US20180087129A1
公开(公告)日：2018-03-29
申请号：US15566131
申请日：2016-04-21
发明人： Viktor Khrist'yanovich MANN , Vitaliy Valer'evich PINGIN , Dmitriy Anatolevich VINOGRADOV , Denis Sergeevich KHRAMOV
CPC分类号： C22C1/026 , B22F9/20 , C01F17/0043 , C22B5/04 , C22B21/02 , C22C1/02 , C22C21/00 , C25C3/06 , C25C3/125 , C25C3/18 , F27B14/06 , F27B14/10 , Y02P10/262
摘要： The invention relates to nonferrous metallurgy and can be used for producing an aluminum-scandium alloy comprising 0.41-4 wt % of scandium in industrial production setting. The proposed method is carried out by melting aluminum and a mixture of salts comprising sodium, potassium and aluminum fluorides followed by performing simultaneously, while continuously supplying scandium oxide, an aluminothermic reduction of scandium from its oxide and an electrolytic decomposition of the formed alumina, wherein the concentration of the scandium oxide in the salt mixture melt is maintained at 1 to 8 wt. %. Periodically, at least a portion of the produced alloy is removed, aluminum is then charged, and the process of alloy production is continued while supplying scandium oxide. Also proposed is a reactor for producing an aluminum-scandium alloy by the disclosed method. The method makes it possible to produce the aluminum-scandium alloy with a predetermined composition, and ensures a high purity of the final product and a high level of scandium recovery while reducing the production process temperature and energy consumption.
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公开(公告)号：US11021773B2
公开(公告)日：2021-06-01
申请号：US16323192
申请日：2017-05-04
摘要： The invention relates to a method for producing a scandium-containing concentrate from the wastes of alumina production and extracting high-purity scandium oxide from the same. Provided is a method for producing a scandium-containing concentrate from a red mud, wherein the Sc2O3 content therein is least of 15 wt. %, the TiO2 content not more than 3 wt. %, the ZrO2 content not more than 15 wt. %, and wherein scandium in the concentrate is in form of a mixture of Sc(OH)3 hydroxide with ScOHCO3.4H2O. Also provided is a method for producing high-purity scandium oxide, with a purity of approximately 99 wt. %.
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公开(公告)号：US20200080213A1
公开(公告)日：2020-03-12
申请号：US16307869
申请日：2017-05-30
发明人： Dmitrij Aleksandrovich SIMAKOV , Aleksandr Olegovich GUSEV , Kirill Borisovich BAKIN , Aleksandr Viktorovich DONTSOV
摘要： This invention relates to nonferrous metallurgy, in particular to a device and method for electrolyte composition analysis based on differential thermal measurements for aluminum electrolysis control. The device is comprised of a metal body including a reference material and an electrolyte sample receptacle, temperature sensors immersed into the reference material and in an electrolyte sample, a system for registration, data processing, and visualization of obtained results. A method includes immersing a metal body into an electrolyte; filling a receptacles with the molten electrolyte; removing and cooling down the metal body having the filled receptacle above a crust on the molten electrolyte surface; drawing and analyzing differential-thermal curves based on which the liquidus temperature, electrolyte superheating and phase and blend compositions of electrolyte solid samples are determined taking into account all crystallizing phases the content of which in the electrolyte sample is no less than 3 wt %.
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公开(公告)号：US20160145753A1
公开(公告)日：2016-05-26
申请号：US14902947
申请日：2013-07-09
IPC分类号： C25C3/18
CPC分类号： C25C3/18
摘要： The invention concerns non-ferrous metallurgy, in particular the composition of an electrolyte for electrically obtaining aluminum by the electrolysis of fluoride melts. The electrolyte proposed contains, in % by weight: sodium fluoride 26-43, potassium fluoride up to 12, lithium fluoride up to 5, calcium fluoride 2-6, alumina 2-6, aluminum fluoride and admixtures—the remainder. The technical result is to increase the solubility of alumina in the electrolyte at a temperature of 830-930° C. In the electrolyte being applied for, the carbon and inert electrode materials are not destroyed, and the use of special methods to purify the aluminum of melt components is not required.
摘要翻译： 本发明涉及有色冶金，特别是通过电解氟化物熔体电解获得铝的电解质的组成。 提出的电解质含有：以重量计：氟化钠26-43，氟化钾高达12，氟化锂高达5，氟化钙2-6，氧化铝2-6，氟化铝及其混合物。 技术结果是在830-930℃的温度下提高氧化铝在电解液中的溶解度。在所用的电解液中，碳和惰性电极材料不会被破坏，而采用特殊方法来净化铝 的熔体组分不需要。
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