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申请号:201911014065.0 公开号:CN110931160A 主分类号:H01B12/00
摘要:【中文】本发明提供一种铁基超导前驱粉、其制备方法、铁基超导线带材,制备方法包括,1)在惰性气氛下,在温度为500~800℃、压力为1~20MPa条件下第一次热等静压处理制备铁基超导的原料粉末,处理时间为10~50小时,得到第一坯体;2)在惰性气氛下,粉碎所述第一坯体,然后在温度为550~650℃、压力为150~250MPa条件下进行第二次热等静压处理,处理时间为0.5~20小时,得到第二坯体;3)在惰性气氛下,粉碎所述第二坯体,得到前驱粉。该方法可以提高成相的反应程度,消除反应过程中的空洞和裂纹,大幅提高合成的铁基超前驱粉的相纯度。 【EN】The invention provides iron-based superconducting precursor powder, a preparation method thereof and an iron-based superconducting wire strip, wherein the preparation method comprises the steps of 1) preparing iron-based superconducting raw material powder by first hot isostatic pressing treatment under the conditions of 500-800 ℃ of temperature and 1-20 MPa of pressure in an inert atmosphere, wherein the treatment time is 10-50 hours, and obtaining a first blank body; 2) crushing the first green body in an inert atmosphere, and then performing secondary hot isostatic pressing treatment at the temperature of 550-650 ℃ and the pressure of 150-250 MPa for 0.5-20 hours to obtain a second green body; 3) and crushing the second blank under the inert atmosphere to obtain precursor powder. The method can improve the reaction degree of the phase formation, eliminate holes and cracks in the reaction process and greatly improve the phase purity of the synthesized iron-based super precursor powder.
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申请号:201911406249.1 公开号:CN111027659A 主分类号:G06K19/077
摘要:【中文】本发明提供了一种外部贴合式按键卡及其实现方法,该外部贴合式按键卡包括:预层压组件,包括:卡片基板及电气性能组件;卡片基板,为卡片中电气性能组件的电路载体;电气性能组件,包括:天线、载带、芯片,位于卡片基板上,为卡片的数据信号通讯交互提供电气连接;版面印刷组件,压合组装在预层压组件上,将天线线头露出;按键组件,压合在天线裸露框位置,包括:断开的控制线路、按键及通断控制器;控制线路、通断控制器及按键从下至上依次排列;控制线路的两端分别与天线线头相连接;按键的外围嵌合在天线裸露框内,或贴合在所述版面印刷组件上;通断控制器,与控制线路断开的两端相对应。本发明能够极大的减少外部贴合式按键卡封装过程中按键的受力。 【EN】The invention provides an external attaching type key card and a realization method thereof, wherein the external attaching type key card comprises the following components: a prelaminate assembly comprising: a card substrate and an electrical performance assembly; the card substrate is a circuit carrier of an electrical performance component in the card; an electrical performance assembly comprising: the antenna, the carrier band and the chip are positioned on the card substrate and provide electrical connection for data signal communication interaction of the card; the layout printing component is pressed and assembled on the pre-laminating component to expose the antenna wire head; the button subassembly, the pressfitting is in the exposed frame position of antenna, includes: the control circuit, the key and the on-off controller are disconnected; the control circuit, the on-off controller and the keys are sequentially arranged from bottom to top; two ends of the control circuit are respectively connected with the antenna wire ends; the periphery of the key is embedded in the exposed frame of the antenna or attached to the layout printing component; and the on-off controller corresponds to the two disconnected ends of the control circuit. The invention can greatly reduce the stress of the key in the process of packaging the external attaching type key card.
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申请号:202010066077.4 公开号:CN111275907A 主分类号:G07G1/14
摘要:【中文】本发明提供了一种多通道识别认证方法和多通道识别认证终端,涉及人脸识别的技术领域,包括在接收到第一交易对象发送的交易信息和第二交易对象确定的支付方式后,基于交易信息和支付方式确定验证信息发送至后台服务器;接收后台服务器基于验证信息发送的指示信息;采集第二交易对象的目标特征信息并发送至后台服务器,以使后台服务器对目标特征信息进行认证,其中,目标特征信息包括:第二交易对象的面部特征信息和附加特征信息。该方法在面部特征信息验证的基础上新增了附加特征信息的验证,且该附加特征信息的采集不受光线或者噪音的影响,提升了人脸支付的安全性和效率,从而有效缓解了现有技术中的人脸识别方法用户体验差的技术问题。 【EN】The invention provides a multi-channel identification authentication method and a multi-channel identification authentication terminal, which relate to the technical field of face identification and comprise the steps of determining verification information and sending the verification information to a background server based on transaction information and a payment mode after receiving transaction information sent by a first transaction object and the payment mode determined by a second transaction object; receiving indication information sent by the background server based on the verification information; collecting target characteristic information of a second transaction object and sending the target characteristic information to a background server so that the background server authenticates the target characteristic information, wherein the target characteristic information comprises: facial feature information and additional feature information of the second transaction object. The method adds additional characteristic information verification on the basis of facial characteristic information verification, the additional characteristic information is not influenced by light or noise in collection, safety and efficiency of face payment are improved, and therefore the technical problem that a face recognition method in the prior art is poor in user experience is effectively solved.
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申请号:202010001338.4 公开号:CN110950328A 主分类号:C01B32/184
摘要:【中文】本发明提供了一种掺杂石墨烯粉体及其制备方法,涉及石墨烯粉体制备技术领域。本发明基于金属镁粉与二氧化碳发生的自蔓延高温合成反应,在初始体系中引入多种掺杂剂,利用反应产生的高温环境引发掺杂剂分解,释放出含有杂原子的气体对石墨烯原位掺杂,得到杂原子掺杂的石墨烯粉体。本发明制备的掺杂石墨烯粉体的平均孔径为2~50nm,BET比表面积为100~500m2·g‑1,具有高比表面积和高介孔率。本发明涉及的反应原料来源广泛,过程简单易行,产率高,无污染,且能有效避免掺杂石墨烯粉体的团聚和堆叠。 【EN】The invention provides doped graphene powder and a preparation method thereof, and relates to the technical field of graphene powder preparation. According to the method, based on a self-propagating high-temperature synthesis reaction of metal magnesium powder and carbon dioxide, a plurality of dopants are introduced into an initial system, the dopants are decomposed by utilizing a high-temperature environment generated by the reaction, and gas containing heteroatoms is released to dope graphene in situ, so that heteroatom-doped graphene powder is obtained. The average pore diameter of the doped graphene powder prepared by the method is 2-50 nm, and the BET specific surface area is 100-500 m2·g‑1Has high specific surface area and high mesoporous rate. The reaction raw materials involved in the invention have wide sources, simple and feasible process, high yield and no pollution, and can effectively avoid the agglomeration and stacking of the doped graphene powder.
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申请号:201811126507.6 公开号:CN110950809A 主分类号:C07D249/12
摘要:【中文】本发明公开了一种芳基三唑啉酮化合物的合成后处理方法,并具体公开了:采用苯肼与乙醛缩合,进一步与氰酸钠,醋酸反应,然后用次氯酸钠氧化得到中间体I的反应液,反应完毕,反应温度10‑15℃,反应体系呈固液悬浊液,此时加热升温,此时固体溶解,反应体系变澄清,且分为两相,上层为含中间体I的叔丁醇相,下层为含盐的有机相;然后依照常规操作,进行溶剂回收,当蒸馏至90‑100℃时,溶剂回收完毕,产品析出,降温,过滤,干燥得到芳基三唑啉酮中间体I。本发明大大降低了中间体I的含盐量,使得烷基化反应能够顺利并稳定进行,有利于减少废固,减轻环保压力及经济成本。 【EN】The invention discloses a synthetic post-treatment method of an aryl triazolinone compound, and particularly discloses: performing condensation on phenylhydrazine and acetaldehyde, further reacting with sodium cyanate and acetic acid, oxidizing with sodium hypochlorite to obtain a reaction solution of an intermediate I, after the reaction is finished, heating to raise the temperature at 10-15 ℃, wherein a reaction system is a solid-liquid suspension, the solid is dissolved at the moment, the reaction system becomes clear and is divided into two phases, the upper layer is a tert-butanol phase containing the intermediate I, and the lower layer is an organic phase containing salt; and then recovering the solvent according to the conventional operation, when the solvent is distilled to 90-100 ℃, separating out the product after the solvent is recovered, cooling, filtering and drying to obtain the aryl triazolinone intermediate I. The invention greatly reduces the salt content of the intermediate I, so that the alkylation reaction can be smoothly and stably carried out, and the invention is beneficial to reducing waste solids and lightening the environmental protection pressure and the economic cost.
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申请号:201911017368.8 公开号:CN110911045A 主分类号:H01B12/00
摘要:【中文】本发明公开了一种MgB2超导线材的制备方法,首先将镁棒置于蒸发镀膜仪内,采用蒸镀工艺将金属活化剂镀覆在镁棒表面,得到蒸镀镁棒;然后将蒸镀镁棒置于管式炉中进行热处理,得到预处理镁棒;再将预处理镁棒固定于金属管的中心位置,将硼粉填充到镁棒和金属管的缝隙中,获得装管复合体;再将装管复合体两端封闭后进行旋锻、拉拔成粗制线材;最后将粗制线材烧结,得到MgB2超导线材。本发明还公开了上述制备方法制备的MgB2超导线材。本发明制备方法可以促进镁‑硼反应,改善烧结性能,同时引入磁通钉扎中心,提高MgB2的载流能力;本发明制得的MgB2线材组织成分均匀,晶粒细小,传输性能好。 【EN】The invention discloses MgB2The preparation method of the superconducting wire comprises the steps of firstly placing a magnesium rod in an evaporation coating instrument, and plating a metal activator on the surface of the magnesium rod by adopting an evaporation process to obtain an evaporation coated magnesium rod; then placing the vapor-deposited magnesium rod in a tube furnace for heat treatment to obtain a pretreated magnesium rod; fixing the pretreated magnesium rod at the central position of the metal tube, and filling boron powder into a gap between the magnesium rod and the metal tube to obtain a tube-loading composite body; then, sealing two ends of the tubulation complex, and then performing rotary swaging and drawing to obtain a rough wire rod; finally sintering the rough wire to obtain MgB2A superconducting wire. The invention also discloses MgB prepared by the preparation method2A superconducting wire. The preparation method can promote the magnesium-boron reaction, improve the sintering performance, introduce the magnetic flux pinning center and improve MgB2The current carrying capacity of; MgB prepared by the invention2The wire has uniform structure components, fine crystal grains and good transmission performance.
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申请号:201911382195.X 公开号:CN110923457A 主分类号:C22B7/00
摘要:【中文】本发明提供了一种高纯砷晶体的制备方法,属于原材料提纯技术领域。本发明在250~295℃进行第一阶段保温,有助于As2O5向As2O3转化;在300~460℃进行第二阶段保温,使砷原料表面的As2O3蒸发并随保护气排出提纯容器;在500~620℃进行第三阶段保温,使As升华形成砷蒸汽;再使提纯容器上、下部分温区按照不同的降温速率降温到300~460℃,使砷蒸汽可以缓慢凝结成晶体并长大,形成高纯砷晶体,同时砷原料表面及内部的As2O3仍然保持气体状态,并随保护气排出容器,从而将砷原料内的氧化物分离出来。本发明方法工艺简单,成本低廉,且生产的砷晶体纯度高,呈现金属光泽,氧含量小于0.5ppm。 【EN】The invention provides a preparation method of a high-purity arsenic crystal, and belongs to the technical field of raw material purification. The invention carries out the first-stage heat preservation at 250-295 ℃, and is beneficial to As2O5To As2O3Transformation; performing second-stage heat preservation at 300-460 ℃ to ensure that As on the surface of the arsenic raw material2O3Evaporating and discharging the purified gas out of the purification container along with the protective gas; carrying out third-stage heat preservation at 500-620 ℃ to sublimate As to form arsenic vapor; then cooling the upper and lower temperature zones of the purification container to 300-460 ℃ according to different cooling rates, so that the arsenic vapor can be slowly condensed into crystals and grow to form high-purity arsenic crystals, and meanwhile, As on the surface and in the arsenic raw material2O3While still in a gaseous state and is discharged from the vessel with the shielding gas to separate the oxides from the arsenic source material. The method and the process of the inventionSimple, low cost, high purity of the produced arsenic crystal, metallic luster and oxygen content less than 0.5 ppm.
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申请号:201911239956.6 公开号:CN110911172A 主分类号:H01G11/10
摘要:【中文】本发明提出了一种软包超级电容器模组。所述模组包括多个并联电芯组、多个工字型隔板、两个半工字型隔板、第一汇流板和第二汇流板;多个并联电芯组采用正极端和负极端交叉的方式并行设置,形成并联电芯组群,工字型隔板设置在并联电芯组群的相邻两个并联电芯组之间,半工字型隔板设置于并联电芯组群的两端的并联电芯组的外侧;第一汇流板设置在并联电芯组群模块的一端,第二汇流板设置在并联电芯组群模块的另一端,相邻两个并联电芯组的极耳群与导电连接板连接。本发明通过工字型隔板和半工字型隔板的导流部进行散热,通过第一汇流板和第二汇流板上的导电连接板与并联电芯组的极耳群连接,减小了串联接触电阻、提高了抗震性能。 【EN】The invention provides a soft-package supercapacitor module. The module comprises a plurality of parallel electric core groups, a plurality of I-shaped partition plates, two half I-shaped partition plates, a first bus plate and a second bus plate; the plurality of parallel electric core groups are arranged in parallel in a mode that positive ends and negative ends are crossed to form a parallel electric core group, an I-shaped partition plate is arranged between two adjacent parallel electric core groups of the parallel electric core group, and a half I-shaped partition plate is arranged on the outer sides of the parallel electric core groups at two ends of the parallel electric core group; the first bus plate is arranged at one end of the parallel battery cell group module, the second bus plate is arranged at the other end of the parallel battery cell group module, and the lug groups of two adjacent parallel battery cell groups are connected with the conductive connecting plate. The heat dissipation is carried out through the flow guide parts of the I-shaped partition plate and the semi-I-shaped partition plate, and the conductive connecting plates on the first bus plate and the second bus plate are connected with the lug groups of the parallel electric core groups, so that the series contact resistance is reduced, and the anti-seismic performance is improved.
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申请号:201911242609.9 公开号:CN110993184A 主分类号:H01B12/02
摘要:【中文】本发明属于铁基超导体技术领域,具体涉及一种铁基超导带材及其制备方法。该方法包括在惰性气氛下,铁基超导前驱粉经旋锻、圆形拉拔、方形拉拔、轧制、烧结后得到铁基超导带材。现有技术中,超导材料加工过程中均为圆线方式,本发明通过采用方形拉拔,改变了超导材料的的截面形状,使截面形状在轧制前形成方形形状,在轧制过程中使超导带材的上下侧面同时接触轧辊,超导带材的中部和边缘的变形量一致,超导芯的变形也更加均匀,不会出现中部超导芯断裂和边缘超导芯不致密、相织构度低的问题,提高了超导带材的超导性能;这种使超导芯更加均匀变形的加工方式使制备均匀性更高的长线成为可能。 【EN】The invention belongs to the technical field of iron-based superconductors, and particularly relates to an iron-based superconducting strip and a preparation method thereof. The method comprises the steps of carrying out rotary swaging, circular drawing, square drawing, rolling and sintering on iron-based superconducting precursor powder in an inert atmosphere to obtain the iron-based superconducting strip. In the prior art, the superconducting material is processed in a round wire mode, the cross section shape of the superconducting material is changed by adopting square drawing, so that the cross section shape forms a square shape before rolling, the upper side surface and the lower side surface of the superconducting strip are simultaneously contacted with a roller in the rolling process, the deformation of the middle part and the edge of the superconducting strip are consistent, the deformation of the superconducting core is more uniform, the problems of breakage of the superconducting core in the middle part, incompactness of the superconducting core at the edge and low phase texture degree are avoided, and the superconducting performance of the superconducting strip is improved; this way of processing, which makes the superconducting core more uniformly deformed, makes it possible to produce long wires with higher uniformity.
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申请号:201911325637.7 公开号:CN111009798A 主分类号:H01R43/02
摘要:【中文】本发明涉及超导接头技术领域,提供了一种多芯铁基超导接头及其制备方法。本发明将银或银合金包套多芯铁基超导线材的一端浸没于熔化的助熔剂中,直到多芯铁基超导线材端头处的银或银合金包套完全熔化后取出;然后将若干根经过上述处理得到的多芯铁基超导线材的端头处搭接并焊接在一起,焊接时采用金属箔包裹住多芯铁基超导线材的搭接部位,得到多芯铁基超导接头。本发明提供的方法能够避免多芯铁基超导接头产生裂纹或断裂,而且本发明提供的方法能够有效提高超导芯接头处的超导电流。实施例结果表明,本发明所述方法制备得到的铁基超导线材超导接头的连接效率可以达到100%,接头电流可达350A,接头电阻小于1nΩ。 【EN】The invention relates to the technical field of superconducting joints, and provides a multi-core iron-based superconducting joint and a preparation method thereof. One end of a silver or silver alloy sheath multi-core iron-based superconducting wire is immersed in a molten fluxing agent until the silver or silver alloy sheath at the end of the multi-core iron-based superconducting wire is completely molten and then taken out; and then, overlapping and welding the end heads of the multi-core iron-based superconducting wires obtained by the treatment, and wrapping the overlapped parts of the multi-core iron-based superconducting wires by using metal foil during welding to obtain the multi-core iron-based superconducting joint. The method provided by the invention can avoid the crack or fracture of the multi-core iron-based superconducting joint, and can effectively improve the superconducting current at the superconducting joint. The embodiment result shows that the connection efficiency of the iron-based superconducting wire superconducting joint prepared by the method can reach 100%, the joint current can reach 350A, and the joint resistance is less than 1n omega.
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