共查询到19条相似文献,搜索用时 265 毫秒
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介绍了马钢双车、双处理工位电极臂旋转横向布置的120 t LF炉的总体布置、设备选型、短网、导电横臂、旋转装置的设计要点。 相似文献
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本文详细阐述了ESI全铝导电横臂的研制过程及使用效果,证明ESI全铝导电横臂最适合炉体开出式和液压电极升降电炉、钢包炉的技术改造以及所带来的重大经济效益。 相似文献
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针对铜钢复合导电横臂的特点,简述了铜钢复合导电横臂电气性能及机械结构的设计原则,对选材及参数的选取给出了参考。并就导电横臂维护和保养提出了建议。 相似文献
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先进的“CONARC”电弧炉的特点是 :能源多种形式 ,有电能、氧·燃喷嘴、氧枪、以及可调节的快速燃烧喷嘴 ;炉料多种形式 ,有废钢料、海绵铁、生铁、热装铁水等 ,而且能够连续加料。介绍了 15 5 t双炉壳电弧炉及其全铝导电横臂。还示出了 85 t德马格单臂钢包炉。图 10曼内斯曼·德马克冶金公司的“CONARC”电弧炉@花皑 相似文献
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随着核电、风电、超临界、超超临界汽轮机组的相继投产,铸钢件的品种越来越复杂,质量要求越来越高。这对以电弧炉单炼为主要生产方式的钢水质量提出了严峻考验,对电弧炉+LF炉双联生产及炉外精炼措施提出了迫切要求。一段时间以来,东汽化使用LF炉冶炼多钢种铸钢件方面进行了积极尝试,但由于在LF炉设备特性及精炼工艺技术方面缺乏研究,对国内外LF炉先进技术的转化和应用方而也没有取得突破性进展,使得LF炉在实际生产中的作用未能充分发挥。该文就科研实践与理论分析相结合,对LF炉设备特性及精炼工艺技术进行了基础性研究。 相似文献
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中国攀枝花新钢厂于2002年初从德国SMSMevac公司订购140t循环脱气设备(RH)和140t钢包精炼炉设备(LF)。前者是带有顶喷枪的快速交换循环脱气设备。真空系统采用最新型的蒸汽喷射泵,其蒸汽消耗和冷凝器的水耗量非常少,被冶炼钢的氢含量非常低。后者装备有导电横臂,为了缩短非生产时间,采用两部钢包车进出钢水。渣的成分控制准确,适宜精炼高纯净钢及合金钢。该工程还包括基础工程,自动化控制系统、冶金模型等。图1攀枝花新钢厂的RH和LF精练设备@花皑 相似文献
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介绍了电弧炉与LF炉液动式电极夹放装置的结构原理及特点,在不同石墨电极直径下的夹紧力计算与取值;简述电极夹放装置的设计合理性对短网系统电阻损耗的影响,及对电弧炉系统正常冶炼造成的危害,提出了设训‘合理性要点。以LF一100t精炼炉工程为例,阐述了液动式电极夹放装置的设计与计算。 相似文献
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《International Journal of Hydrogen Energy》2020,45(23):13080-13089
Layered double hydroxide (LDH) is potentially excellent supercapacitor (SC) materials, but the low conductivity and easy agglomeration limit the further improvement of their electrochemical properties. Therefore, LDHs are requisite to grow on some conductive substrates to produce high-performance SC. In this paper, the conductive two-dimensional (2D) transition metal carbides, nitrides and carbonitrides (called MXene) were explored as the substrate to directly deposit NiFe-LDH nanosheets by a one-step hydrothermal method, then a three-dimensional (3D) porous NiFe-LDH/MXene electrode was obtained. The morphology and electrochemical performance of the composite electrodes were analyzed and investigated. The results show that the NiFe-LDH/MXene electrode has larger specific capacitance (720.2 F/g) than NiFe-LDH (465 F/g), and the capacitance of the composite electrode retained 86% after 1000 cycles (only 24% for NiFe-LDH), showing excellent cycle stability. The improved electrochemical performance of the composites is caused by the stable sheet-like structure of NiFe-LDH during charge-discharge time and the conductive network formed by the MXene, which can accelerates electron transport. In addition, the asymmetric SC based on NiFe-LDH/MXene positive electrode display a power density of 758.27 W/kg at an energy density of 42.4 Wh/Kg. These results indicate the NiFe-LDH/MXene composites can be applied as the novel candidate of high-performance SC electrodes. 相似文献
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锂离子液流电池将锂离子电池的工作原理与传统液流电池的结构特点相结合,是一种正处于基础技术开发阶段的新型电化学储能电池技术,具有输出功率和储能容量彼此独立、成本较低等特点,适用于未来电网储能领域。电极悬浮液作为实现锂离子液流电池充放电功能的主体材料,其导电性能和流动性能是影响锂离子液流电池倍率特性和能量密度的重要因素。论文结合实验数据对该方向面临的主要技术问题及研究重点进行了分析,认为电极悬浮液的研究需要从导电机理、质量比容量、流变性能等方面进一步深入研究,并建立标准评价体系。 相似文献
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直流电弧炉的发展及其炉底电极的形式 总被引:3,自引:0,他引:3
简介直流电弧炉的发展概况及对不同形式炉底电极进行了综合比较。结合导电炉底风冷底电极的结构、特点,指出该种底电极用的导电耐火材料在国内开发的意义。 相似文献
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Satoshi Uchida Miho Tomiha Naruhiko Masaki Akihiro Miyazawa Hirotsugu Takizawa 《Solar Energy Materials & Solar Cells》2004,81(1):135-139
Microwave preparation of TiO2 nanocrystalline electrode for use in dye-sensitized solar cells is examined. A multi-mode microwave heating system operating at a frequency of 28 GHz is used to produce rapid processing. Well-sintered TiO2 nanocrystalline thin film is successfully fabricated on transparent conductive FTO glass electrode. Photoelectron energy conversion efficiency of 5.51% is achieved in an electrode prepared by 28 GHz microwave irradiation at 0.7 kW for 5 min. 相似文献
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It is shown that the rate performance of a lithium battery composite electrode may be compromised by poor internal connectivity due to defects and inhomogeneities introduced during electrode fabrication or subsequent handling. Application of a thin conductive coating to the top surface of the electrode or to the separator surface in contact with the electrode improves the performance by providing alternative current paths to partially isolated particles of electroactive material. Mechanistic implications are discussed and strategies for improvement in electrode design and fabrication are presented. 相似文献