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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 22. Отображено 22.
24-09-2014 дата публикации

Horizontally arranged battery steel shell structure

Номер: CN104064696A
Автор: YU SHIYANG, XU CUNYING, WU HONGLIANG
Принадлежит:

The invention provides a horizontally arranged battery steel shell structure, and relates to the field of lead-acid battery shells. The horizontally arranged battery steel shell structure is characterized in that at least two groups of corresponding bosses and concave pits are arranged at the edges of the top and the bottom of a steel shell; the bosses and the concave pits are conical; a platform is arranged around each convex pit. When a battery packaged by the structure is horizontally arranged, the conical convex and concave parts on the upper and lower layers are effectively matched, so that positioning is accurate and reliable, and arrangement is convenient and quick; the phenomena of interlayer sliding and staggering of the battery are avoided; furthermore, an upside down battery can be prevented; the horizontally arranged battery steel shell structure is simple and applicable, and has popularization value.

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Номер записи: 1
30-09-2015 дата публикации

Method for preparing cuprous chloride nanocube electrode material by eutectic type ionic liquid electrolysis

Номер: CN104947136A
Автор: ZHANG QIBO, YANG CHUANG, HUA YIXIN, XU CUNYING, LI YAN, LI JIAN
Принадлежит:

The invention relates to a method for preparing a cuprous chloride nanocube electrode material by eutectic type ionic liquid electrolysis, and belongs to the technical field of material preparation. The method comprises the following steps: firstly, under an inert atmosphere, quaternary ammonium salt and amide are uniformly mixed to prepare a eutectic type ionic liquid; then, a copper precursor is added into the eutectic type ionic liquid to uniformly mix to obtain composite electrolyte of the ionic liquid and copper salt; and by taking stainless steel, a nickel plate and a copper plate as a cathode, and taking pure copper, graphite or an inert anode as an anode, constant-potential electrolysis is carried out by taking the composite electrolyte of the ionic liquid and copper salt as electrolyte under conditions of a temperature of 20-60 DEG C, no stirring and cathode potential of 0.0-0.4Vvs.Ag, the electrolyzed cathode is flushed by acetone and distilled water, and dried to obtain the cuprous ...

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Номер записи: 2
25-11-2009 дата публикации

Method for leaching chalcopyrite and corresponding leaching agent

Номер: CN0101586186A
Автор: YIXIN HUA, TIEGUANG DONG, QIBO ZHANG, CUNYING XU, GUOCAI TIAN, YAN CUI, YAN LI, QIFEI PEI, HUA YIXIN, DONG TIEGUANG, ZHANG QIBO, XU CUNYING, TIAN GUOCAI, CUI YAN, LI YAN, PEI QIFEI
Принадлежит:

The invention relates to a method for leaching chalcopyrite and corresponding leaching agent, belonging to the metallurgy technical field. The invention mainly adopts dihydroimidazol phosphate ion liquid ([BMIM]H2PO[4]) as leaching agent, matching with certain partial pressure of oxygen to leach the chalcopyrite, the leaching temperature is between 50 DEG C and 90 DEG C; the leaching pressure is normal pressure; the chalcopyrite granularity is between 100 and 200 meshes; the leaching time is 6-12 hours, the leaching rate of the copper is more than 95 %. The effect of the invention is that the reactor of the invention need not high temperature and high pressure devices, without adding catalyst or oxidizer, the impurity content in the leaching solution is less. the wastage of the leaching agent during leaching is less, the separation of the copper and the impurity is easy, the leaching agent can be used circularly, the production costs and the pollution can be reduced.

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Номер записи: 3
24-12-2014 дата публикации

Method for electrolyzing ferric oxide by using deep eutectic solvent to prepare ferroferric oxide

Номер: CN104233361A
Автор: HUA YIXIN, QI CANCAN, XU CUNYING, LI JIAN, LI YAN, ZHANG QIBO, JIE YAFEI, RU JUANJIAN, CHEN KONGHAO, GONG KAI, ZHOU ZHONGREN
Принадлежит:

The invention relates to a method for electrolyzing ferric oxide by using a deep eutectic solvent to prepare ferroferric oxide and belongs to the technical fields of wet metallurgy and materials. The method comprises the following steps: preparing a cathode plate, namely mixing ferroferric oxide with PVA binder and a pore-forming agent; pressing and molding, and then roasting at 800 DEG for 3 hours to prepare the cathode plate; preparing a deep eutectic solvent, namely mixing choline chloride with ethylene glycol evenly to form the deep eutectic solvent; carrying out direct-current electrolysis on graphite serving as an anode and the prepared cathode plate serving as a cathode in the deep eutectic solvent so that ferric oxide on the cathode plate is reduced into ferroferric oxide; and carrying out ultrasonic washing and vacuum drying on the obtained ferroferric oxide by using ethanol and distilled water, so as to obtain ferroferric oxide. The method is short in technological process, simple ...

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Номер записи: 4
14-05-2014 дата публикации

Method for separating lead-antimony oxide roasted product by use of eutecticevaporate solvent

Номер: CN103789545A
Автор: HUA YIXIN, RU JUANJIAN, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, ZHOU ZHONGREN
Принадлежит:

The invention relates to a method for separating a lead-antimony oxide roasted product by use of an eutecticevaporate solvent and belongs to the technical field of nonferrous metallurgy. The method comprises the following steps: under an inert gas atmosphere, firstly, uniformly mixing quaternary ammonium salt and amide to form the eutecticevaporate solvent; then adding the lead-antimony oxide roasted product into the eutecticevaporate solvent prepared by the step to carry out selective dissolution; after completely dissolving, carrying out filtering separation to obtain a lead-containing solution and filtering dreg; washing the filtering dreg by using distilled water; drying to obtain antimonous oxide. By adopting the method, lead-antimony oxide can be directly separated to generate the lead-containing solution and the filtering dreg; the method is simple in process; the requirements on materials of equipment are low and the energy consumption is small; the method is economical and environment-friendly ...

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Номер записи: 5
19-03-2014 дата публикации

Method for utilizing low co-fusion type ionic liquid electro-deposition to manufacture nanometer copper powder

Номер: CN103639420A
Автор: ZHANG QIBO, WANG RUI, HUA YIXIN, XU CUNYING, LI YAN, LI JIAN
Принадлежит:

The invention relates to a method for utilizing low co-fusion type ionic liquid electro-deposition to manufacture nanometer copper powder and is mainly applied to the field of material preparation. The method comprises the steps of mixing choline chloride and urea after performing vacuum drying on choline chloride and urea, performing reaction to obtain low co-fusion type ionic liquid, adding a copper precursor to perform uniform mixing, and obtaining an ionic liquid-copper salt compound electrolyte; finally under the inert atmosphere, enabling stainless steel, a nickel sheet or a titanium sheet to serve as a negative pole, enabling graphite or an inertial positive pole to serve as a positive pole, performing electro-deposition in the ionic liquid-copper salt compound electrolyte, and obtaining the nanometer copper powder with the grain size of 30-50nm on the surface of the negative pole. The method has the advantages that the method is low in cost and reaction energy consumption, short ...

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Номер записи: 6
19-03-2014 дата публикации

Method for deep eutectic solvent electrodeposition of lead powder

Номер: CN103643262A
Автор: HUA YIXIN, RU JUANJIAN, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, ZHOU ZHONGREN
Принадлежит:

The invention relates to a method for deep eutectic solvent electrodeposition of lead powder, belonging to the technical field of non-ferrous metal metallurgy. The method comprises the steps of firstly uniformly mixing quaternary ammonium salt with amide to form a deep eutectic solvent under an inert environment, and then adding lead oxide into the deep eutectic solvent to prepare a deep eutectic solvent electrolyte; by taking graphite as an anode and taking a base body after pretreatment as a cathode, performing electrodeposition in the prepared deep eutectic solvent electrolyte, washing the base body after the electrodeposition with acetone and distilled water, and drying to prepare the lead powder on the base body. By adopting the method provided by the invention, the lead powder with high purity, fine particle size and strong activity can be prepared, and the method has the advantages of simple process, low requirements for equipment materials, relatively low energy consumption, economy ...

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Номер записи: 7
23-09-2015 дата публикации

Method for electrolytically preparing dendritic fine copper powder in oxalic acid

Номер: CN104928724A
Автор: LI JIAN, KE PINGCHAO, HUA YIXIN, XU CUNYING, LI YAN, ZHANG QIBO, ZHANG YUAN, ZHANG XIANJIE, LI LINFEI, QIU XUEJUN
Принадлежит:

The invention relates to a method for electrolytically preparing dendritic fine copper powder in oxalic acid, and belongs to the technical field of nonferrous metallurgy. The method comprises the steps that the oxalic acid is added into pure water to form an oxalic acid solution with the concentration 0.1-0.5 mol/L, then an auxiliary reagent is added according to the mole ratio 1:1 of the oxalic acid and the auxiliary reagent in the oxalic acid solution, and an electrolyte is obtained after even mixing; the electrolyte is heated to 20-50 DEG C, then a fine copper anode and a titanium chip cathode are placed in the electrolyte for electrolysis, and then the fine copper powder can be deposited on the cathode; the fine copper powder deposited on the cathode is taken down and washed for three times by using the pure water, 60-80 DEG C vacuum drying is performed, and then the dendritic fine copper powder with the granularity 10-20 micrometers is obtained. According to the method for electrolytically ...

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Номер записи: 8
25-02-2015 дата публикации

Positive-electrode plate alloy for lead-acid storage battery

Номер: CN104377365A
Автор: YANG PENG, XU CUNYING
Принадлежит:

The invention discloses a positive-electrode plate alloy for a lead-acid storage battery. The novel rare-earth alloy is formed by adding a lanthanide (rare earth) into the existing lead-calcium-tin-aluminum alloy. The novel rare-earth alloy comprises the following components in percent by weight: 0.07-0.11% of calcium, 1.0-1.2% of tin, 0.001%-0.003% of aluminum, 0.01-0.03% of lanthanum (rare earth) and the balance of lead, wherein the lanthanum (rare earth) is rhenium. The crystalline grains of the novel rare-earth alloy disclosed by the invention are fine and distributed uniformly, thus the novel rare-earth alloy has excellent overall performance such as high strength, high toughness, good resistance to fatigue and corrosion and good electrical conductivity, and the lead-acid storage battery adopting the positive-electrode plate alloy has high deep cycle performance and long service life and is particularly suitable for the start-stop system of an automobile.

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Номер записи: 9
30-03-2011 дата публикации

Method for preparing Al-Ti alloy or plated Al-Ti alloy by low-temperature electrolytic deposition of ionic liquid

Номер: CN0101994128A
Автор: Xu Cunying, Hua Yixin, Liu Yawei, Zhang Xiaoying, Li Yan, Pei Qifei
Принадлежит:

The invention relates to a method for preparing Al-Ti alloy or plated Al-Ti alloy by low-temperature electrolytic deposition of ionic liquid, which is characterized by synthesizing an ionic liquid from an organic material and anhydrous aluminium trichloride, adding a right amount of titanium salt to prepare an ionic liquid electrolyte, taking a substrate which is pre-treated as a deposition cathode and preparing Al-Ti alloy or plated Al-Ti alloy by direct current electrolytic deposition, wherein the titanium content within the alloy can be as high as 30%. The method provided by the invention has the advantages that the ionic liquid used therein has wide resource, low price and wide electrochemical window, the electrical conductivity is high, the ionic liquid is friendly to environment and the titanium salt can be effectively dissolved, the temperature of electrolytic deposition and cell voltage can be effectively reduced by using low-temperature electrolytic deposition process of ionic ...

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Номер записи: 10
12-08-2015 дата публикации

Method for preparing zinc oxalate as zinc oxide powder precursor from middle/low-grade zinc oxide ore

Номер: CN104831060A
Автор: LI JIAN, ZHANG YUAN, HUA YIXIN, XU CUNYING, LI YAN, ZHANG QIBO, KE PINGCHAO, LI LINFEI, ZHANG XIANJIE, QIU XUEJUN
Принадлежит:

The invention relates to a method for preparing zinc oxalate as a zinc oxide powder precursor from middle/low-grade zinc oxide ore and belongs to the technical field of wet method metallurgy. The method comprises preparing a deep eutectic solvent-type ionic liquid from choline chloride and oxalic acid, fragmenting and fine grinding middle/low-grade zinc oxide ore, adding the middle/low-grade zinc oxide ore powder into the deep eutectic solvent-type ionic liquid, carrying out stirring leaching, adding distilled water into the leached ore pulp, carrying out stirring to obtain a uniform mixture, carrying out standing, carrying out solid-liquid separation to obtain a filtrate A and a zinc oxalate-rich filter residue B, preparing a deep eutectic solvent-type ionic liquid, adding the zinc oxalate-rich filter residue B into the deep eutectic solvent-type ionic liquid, carrying out leaching, carrying out solid-liquid separation to obtain a filtrate C and filter residue D, adding distilled water ...

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Номер записи: 11
01-04-2015 дата публикации

Method for preparing copper foil for lithium ion battery through low eutectic type ionic liquid electro-deposition

Номер: CN104485459A
Автор: ZHANG QIBO, WANG RUI, HUA YIXIN, XU CUNYING, LI YAN, LI JIAN
Принадлежит:

The invention relates to a method for preparing a copper foil for a lithium ion battery through low eutectic type ionic liquid electro-deposition, and belongs to the technical field of material preparation. The method comprises the steps: firstly, in an inert atmosphere, drying a quaternary ammonium salt and amide at a temperature of 80 DEG C and under vacuum, then mixing, under an 80 DEG C constant-temperature heating condition, carrying out a reaction for 1 h, and thus obtaining a low eutectic type ionic liquid; adding a copper precursor into the obtained low eutectic type ionic liquid, and mixing evenly, to obtain an ionic liquid-copper salt composite electrolyte solution; at the inert atmosphere, with stainless steel, a nickel sheet or a titanium sheet as a cathode and with pure copper, graphite or an inert anode as an anode, carrying out electro-deposition in the ionic liquid-copper salt composite electrolyte solution, flushing the cathode substrate after electro-deposition with acetone ...

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Номер записи: 12
25-07-2012 дата публикации

Method for leaching chalcopyrite and corresponding leaching agent

Номер: CN0101586186B
Автор: YIXIN HUA, TIEGUANG DONG, QIBO ZHANG, CUNYING XU, GUOCAI TIAN, YAN CUI, YAN LI, QIFEI PEI, HUA YIXIN, DONG TIEGUANG, ZHANG QIBO, XU CUNYING, TIAN GUOCAI, CUI YAN, LI YAN, PEI QIFEI
Принадлежит:

The invention relates to a method for leaching chalcopyrite and corresponding leaching agent, belonging to the metallurgy technical field. The invention mainly adopts dihydroimidazol phosphate ion liquid ([BMIM]H2PO[4]) as leaching agent, matching with certain partial pressure of oxygen to leach the chalcopyrite, the leaching temperature is between 50 DEG C and 90 DEG C; the leaching pressure is normal pressure; the chalcopyrite granularity is between 100 and 200 meshes; the leaching time is 6-12 hours, the leaching rate of the copper is more than 95 %. The effect of the invention is that the reactor of the invention need not high temperature and high pressure devices, without adding catalyst or oxidizer, the impurity content in the leaching solution is less. the wastage of the leaching agent during leaching is less, the separation of the copper and the impurity is easy, the leaching agent can be used circularly, the production costs and the pollution can be reduced.

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Номер записи: 13
05-11-2014 дата публикации

Method utilizing eutectic solvent to carry out in-situ reduction on lead oxide to produce lead

Номер: CN104131312A
Автор: HUA YIXIN, RU JUANJIAN, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, ZHOU ZHONGREN
Принадлежит:

The invention relates to a method utilizing a eutectic solvent to carry out in-situ reduction on lead oxide to produce lead, and belongs to the technical field of non-ferrous metal metallurgy. The method comprises the following steps: taking lead oxide as the raw material, ammonium bicarbonate as the pore forming agent, and polyvinyl alcohol as the adhesive, evenly mixing three materials together, pressing the mixture into a lead oxide block, burning the lead oxide at an argon atmosphere so as to produce a lead oxide electrode; evenly mixing quaternary ammonium salts and polyol at an argon atmosphere to form a eutectic solvent electrolyte, carrying out electrolysis in the eutectic solvent electrolyte prepared in the previous step by taking graphite as the positive electrode and the lead oxide electrode as the negative electrode, washing the reduced negative electrode by acetone and distilled water, and finally drying so as to obtain high-purity metal lead. The technology is simple, the ...

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Номер записи: 14
25-03-2015 дата публикации

Method for preparing titanium carbide by performing molten salt electrolysis on high titanium slags

Номер: CN104451758A
Автор: XU CUNYING, HUA YIXIN, CHEN KONGHAO, LI JIAN, QI CANCAN, ZHANG QIBO, LI YAN
Принадлежит:

The invention relates to a method for preparing titanium carbide by performing molten salt electrolysis on high titanium slags, and belongs to the technical field of non-ferrous metallurgy. The method comprises the steps of uniformly mixing high titanium slags with carbonaceous reducing agents to obtain a mixture; adding binding agents and pore-forming agents into the mixture; uniformly mixing and stirring; molding by mould pressing; sintering under inert gas protection to prepare a high titanium slags/carbon composite electrode; performing electrolysis in sodium chloride-calcium chloride molten salt by using the prepared high titanium slags/carbon composite electrode as a cathode and graphite as an anode at the temperature of 700-1,000 DEG C under the inert gas protection; further slowly cooling an electrolysate obtained on the cathode under the inert gas protection or quickly taking out and putting into the deionized water for quenching; performing acid washing and water washing on the ...

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Номер записи: 15
28-07-2010 дата публикации

Application of sulphuric acid hydrogen imidazole ion liquid in electrolytical refined copper

Номер: CN0101343750B
Автор: QIBO ZHANG, YIXIN HUA, GUOCAI TIAN, YAN LI, CUNYING XU, ZHANG QIBO, HUA YIXIN, TIAN GUOCAI, LI YAN, XU CUNYING
Принадлежит:

The invention relates to an application of a hydrogen sulfate imidazole ion fluid in copper electrolysis refining. The hydrogen sulfate imidazole ion fluid is used as an addition agent applied in electrorefining of copper, and the addition quantity is 25 to 50 ppm. Electrolytic copper with smooth surface and high purity can be achieved through adding a slight amount of addition agent in the copper electrolysis refining process. The ion electric conductivity of the addition agent is high, the chemical thermal stability is good, the using effect is good, convenient and reliable, and compared with the traditional addition agents such as bone glue, thiourea and chloride ion, the hydrogen sulfate imidazole ion fluid can improve the electrolytic copper surface appearance, refine the crystal grains and effectively improve the edge crystal effect.

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Номер записи: 16
14-01-2009 дата публикации

Application of sulphuric acid hydrogen imidazole ion liquid in electrolytical refined copper

Номер: CN0101343750A
Автор: YIXIN HUA, QIBO ZHANG, CUNYING XU, YAN LI, GUOCAI TIAN, HUA YIXIN, ZHANG QIBO, XU CUNYING, LI YAN, TIAN GUOCAI
Принадлежит:

The invention relates to an application method of hydrogen sulfate imidazole ion fluid in copper electrolysis refining. The hydrogen sulfate imidazole ion fluid is used as the addition agent applied in copper electrolysis refining, and the addition quantity is 25 to 50ppm. The electrolytic copper with smooth surface and high purity can be achieved through adding a slight amount of addition agent in the copper electrolysis refining process. The ion electric conductivity of the addition agent is high, the chemical thermal stability is good, the using effect is good, convenient and reliable, and compared with the traditional addition agents such as bone glue, thiourea and chloride ion, the hydrogen sulfate imidazole ion fluid can improve the electrolytic copper surface appearance, refine the crystal grains and effectively improve the edge crystal effect.

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Номер записи: 17
17-12-2014 дата публикации

Method for preparing lead-antimony alloy by directly electrolyzing lead-antimony oxide

Номер: CN104213151A
Автор: HUA YIXIN, RU JUANJIAN, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, ZHOU ZHONGREN
Принадлежит:

The invention relates to a method for preparing a lead-antimony alloy by directly electrolyzing a lead-antimony oxide, and belongs to the technical field of nonferrous metallurgy. The lead-antimony oxide serves as a raw material; ammonium bicarbonate serves as a pore forming agent; the lead-antimony oxide and the ammonium bicarbonate are evenly mixed, and are pressed to blocks to prepare a lead-antimony oxide electrode; under the argon environment, quaternary ammonium salt and polyols are evenly mixed to form eutecticevaporate solvent electrolyte; graphite serving as an anode and the lead-antimony oxide electrode serving as a cathode are electrolyzed for 8-20 h in the eutecticevaporate solvent electrolyte under the conditions of the electrolyte temperature of 40-100 DEG C, the tank voltage of 2.0-2.5 V and the distance of the cathode and anode of 0.5-2 cm; and then, the cathode is taken out, is flushed by acetone and distilled water, and is dried to obtain the lead-antimony alloy. The method ...

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Номер записи: 18
16-03-2011 дата публикации

Method for electroplating Zn-Ti alloy by ionic liquid

Номер: CN0101985766A
Автор: CUNYING XU, YIXIN HUA, QING WU, XIAOYING ZHANG, GUOCAI TIAN, JIAN LI, XU CUNYING, HUA YIXIN, WU QING, ZHANG XIAOYING, TIAN GUOCAI, LI JIAN
Принадлежит:

The invention relates to a method for preparing Zn-Ti alloy coating by adopting ionic liquid electrolytic deposition technology. The method solves the problems that the process and equipment are complex, cost is high and coating is uneven in the existing process for producing Zn-Ti alloy coating. The preparation method includes: firstly, an organic compound is mixed with zinc chloride anhydrous, so as to form ionic liquid, then appropriate amount of titanium salt is added, so as to obtain ionic liquid electrolyte; secondly, electrolytic deposition is carried out; thirdly, test piece is washed by acetone and distilled water and then is dried, thus obtaining the Zn-Ti alloy coating. The invention has simple process and equipment and low cost. Zn-Ti alloy coating titanium content of which is controlled to be 1.0-25.4% can be prepared, the coating is uniform, smooth and flat, combination with substrate is firm, process is simple, and requirement on material of equipment is low, energy consumption ...

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Номер записи: 19
01-04-2015 дата публикации

Method for preparing Ni-La alloy through ionic liquid electro-deposition

Номер: CN104480492A
Автор: XU CUNYING, HUA YIXIN, YANG YINGYA, LI JIAN
Принадлежит:

The invention relates to a method for preparing an Ni-La alloy through an ionic liquid electro-deposition, and belongs to the technical field of non-ferrous metal metallurgy. The method comprises the steps: firstly, under the inert gas protection, successively adding an additive, a nickel salt and a lanthanum salt in an ionic liquid, and mixing evenly, to obtain an ionic liquid electrolyte solution; taking a pretreated substrate as a cathode, taking graphite or other inert materials as an anode, keeping the distance between the anode and the cathode at 0.2-5 cm, at the current density of 5-20 mA/m<2> and at the temperature of 60-100 DEG C, carrying out constant current electro-deposition for 1-6 hours, then taking out the cathode, flushing, drying, and thus obtaining an Ni-La alloy deposited layer. The method is low in operation temperature, has less energy consumption, has small corrosion to equipment, is environmentally friendly, is low in cost, and solves the problems that gas phase ...

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Номер записи: 20
28-01-2015 дата публикации

Method for electroplating Ni-Fe alloy with ionic liquid

Номер: CN104313655A
Автор: HUA YIXIN, JIE YAFEI, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, RU JUANJIAN, ZHOU ZHONGREN, QI CANCAN, CHEN KONGHAO
Принадлежит:

The invention relates to a method for electroplating Ni-Fe alloy with ionic liquid and belongs to the technical field of nonferrous materials. The method comprises the following steps: in an inert gas environment, firstly mixing choline chloride and carbamide to form the ionic liquid, then respectively adding nickel salt and iron salt to the ionic liquid, and uniformly mixing to obtain an ionic liquid electrolyte; placing an cathode and an anode into the ionic liquid electrolyte by using a pretreated matrix as the cathode and an iron plate, or a nickel plate or graphite as the anode, wherein the distance of the anode and the cathode is kept at 0.2-5cm; carrying out constant-current deposition at the temperature of 60-110 DEG C and control current density of 3.0-11.0mA/cm<-2> for 0.1-3 hours to obtain a cathode test piece; and sequentially washing the obtained cathode test piece with acetone and distilled water, and drying to obtain Ni-Fe alloy coating. The method aims to overcome the defects ...

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Номер записи: 21
26-03-2014 дата публикации

Method for preparing arborization fine copper powder in electrolysis mode

Номер: CN103658637A
Автор: LI JIAN, KE PINGCHAO, HUA YIXIN, XU CUNYING, TIAN GUOCAI, ZHANG QIBO, LI YAN, ZHANG YUAN, WANG ZHEN, ZHANG ZHI
Принадлежит:

The invention relates to a method for preparing arborization fine copper powder in an electrolysis mode and belongs to the technical field of preparing nonferrous metal hydrometallurgy and metal powder materials. Firstly, choline chloride and urea are used for preparing eutecticevaporate solvent type ionic liquid, an additive is added into the eutecticevaporate solvent type ionic liquid and an electrolyte is prepared; pure copper serving as an anode and a titanium sheet serving a cathode are added into the obtained electrolyte to be electrolyzed for 30-120 minutes, namely arborization fine copper powder is obtained on the cathode; the obtained arborization fine copper powder is taken off the cathode, cleaned and dried through vacuum and arborization fine copper powder with the granularity ranging from 1-10 microns is obtained. By means of the method for preparing the arborization fine copper powder in the electrolysis mode, cuprous oxide does not need to be added into the ionic liquid, ...

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Номер записи: 22