金属熔体
金属熔体的相关文献在1986年到2022年内共计424篇,主要集中在金属学与金属工艺、冶金工业、化学工业
等领域,其中期刊论文106篇、会议论文29篇、专利文献908304篇;相关期刊72种,包括西安工业大学学报、中国有色冶金、铝加工等;
相关会议25种,包括2016中国有色合金及特种铸造发展论坛(第3届有色合金及特种铸造技术国际研讨会、第十一届中国国际压铸会议、第九届中国铸造质量标准论坛)、第二届全国电磁冶金与强磁场材料科学会议、2011年全国功率超声学术会议等;金属熔体的相关文献由793位作者贡献,包括张博、耿永亮、刘国钧等。
金属熔体—发文量
专利文献>
论文:908304篇
占比:99.99%
总计:908439篇
金属熔体
-研究学者
- 张博
- 耿永亮
- 刘国钧
- 疏达
- 丁三才
- 徐骏
- 李军文
- 朱纯傲
- 王俊
- 翟启杰
- 张鉴
- 钟浪祥
- 孙宝德
- 李大勇
- 王利华
- 刘小飞
- 王国祥
- 童景山
- 邓冠军
- 乐启炽
- 厉英
- 张志峰
- 王海川
- 耿浩然
- 郝政晔
- B·斯泰纳
- I·K·斯泰恩
- J·O·法格列
- T·海于根
- U·特鲁特曼
- W·凯勒
- 任忠鸣
- 傅恒志
- 刘旭波
- 刘轩
- 宛波
- 崔建忠
- 张云虎
- 张建锋
- 张志强
- 张花蕊
- 张虎
- 托马斯·舍梅尔
- 李文超
- 杨利敏
- 杨湘杰
- 白月龙
- 石力开
- 程素娟
- 米夏埃尔·朔尔韦
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摘要:
增加真空深度可以极大地促进挥发性金属杂质的去除。通过下列过程来去除这些杂质:1)杂质向表面转移,这个过程由两个程序构成,一个是对流过程,一个是扩散过程;2)杂质蒸发。熔炼时由于金属熔液产生运动,对流气流在均衡熔池深处的杂质浓度方面发挥了决定性的作用。在表面层在均衡杂质浓度的过程中杂质扩散具有重大的作用。
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摘要:
美国南方线材公司研发了一套注册商标为Ultra-DTM的超声波在线熔体净化系统,用于净化铝合金熔体。在工业生产线上的实验结果表明,这种超声波熔体净化系统在去除铝合金熔体中的氢气、夹杂物、碱金属等方面具有替代铝合金铸造生产线上的转子除气系统的潜力。该超声波除气除渣的基本原理是:在熔体中通入少量惰性气体,使超声波作用于金属熔体,然后利用超声波的“空化”效应将气体打散成细小的气泡,通过这些细小气泡的上浮,将熔体中的氢气和夹杂物带出熔体,最终达到除气除渣、净化熔体的效果。Ultra-DTM超声波熔体净化系统可以将5154合金中的Na含量从18 ppm降低至2 ppm,将Li含量从6 ppm降低至3 ppm。
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张鑫
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摘要:
金属熔体沉积增材制造技术可通过逐层堆积直接成形零构件,无需特殊模具和昂贵设备,被公认为是一种节能、降耗的新型快速成型方法,极具发展潜力.研究了按需喷射下金属熔体沉积、铺展凝固机理以及其工艺参数控制;层流和湍流不同情况下金属熔体沉积铺展的主要特征参数;探索了金属微熔体在小空间、大时间温度梯度环境下沉积成型中熔体流动行为、凝固成型机理.这种成形方法将为复杂金属构件的高效控形控性增材制造开拓新途径.%Metallic melts deposition material-adding manufacturing technology can directly form zero components through layer-by-layer accumulation,without special mould and expensive equipment,which has been widely recognized as a new kind of energy saving & consumption reduction rapid prototyping method with extreme development potential.The metallic melts deposition,spreading solidification mechanism and the process parameter control under on-demand injection have been studied.The melt flow behavior and solidification molding mechanism of the micro metal melt have been explored during deposit forming process in little space & large time temperature gradient environment.The main characteristic parameters of metal melt during deposit spreading process have been studied under laminar flow and turbulent flow conditions.This method will create a new method for efficient control materialadding production of complex metal member.
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王旭东;
黄海军;
周月明
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摘要:
超声是实现金属凝固组织细化的一种高效、简单方法,具有无“污染”熔体等诸多优点,但超声细化的关键——金属熔体中的声空特性尚不清楚,制约了超声细化理论的发展及该细化方法的应用.针对声空化,详述了声空化泡的形成、声空化结构与声空化泡的分布、声空化泡运动学与动力学的研究进展,介绍了金属熔体中声空化特性的研究现状,并对新研究方法与方向进行了展望.%Ultrasound is an efficient and simple method to realize the refinement of metal solidification structure,and it has many advantages such as no "contamination" melt,but the key to ultrasonic refinement is that the sound and air properties in the metal melt are not yet clear,which restricts the development of ultrasonic refinement theory and the application of this refinement method.Aiming at acoustic cavitation,the development of acoustic cavitation bubbles,acoustic cavitation structures & the distribution of acoustic cavitation bubbles,and the research progress of kinematics & dynamics of acoustic cavitation bubbles have been described in detail.The research status of acoustic cavitation characteristics in metal melts has been introduced.The new research methods and directions have been prospected.
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刘伟;
张永军;
甘代伟
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摘要:
Adopt the method of numerical calculation and experimental analysis, further study of the fracture, the spreading process of metallic melts and remelting and substrates, the results showed that the melt under its own gravity, metal surface tension and pulse pressure downward pressure, gravity and gas pressure pulse is melt fracture, from the reaction between the nozzle and the metal surface tension makes melt gradually formed round ball after fracture. Metal melt deposition process on the basis of morphological changes of metal melt, will the whole process is divided into three stages: sedimentary stage movement, sedimentary spreading and balance. When the metal melt deposition on the substrate, if interface temperature above the melting point of matrix, and the substrate can melt, forming a good metallurgical bonding.%采用数值计算与实验分析相结合的方法,深入研究了金属熔体的断裂、铺展过程及与基体重熔性,结果表明:熔体受自身重力、金属表面张力以及脉冲气压向下压力作用,其中重力和脉冲气压力是促使熔体断裂,脱离喷嘴的作用力,而金属表面张力使得断裂后的熔体逐渐形成圆球形。金属熔体沉积过程依据金属熔体形态特征变化,将整个沉积过程划分为三个阶段:运动、沉积铺展和平衡阶段。当金属熔体沉积在基体上,如果界面温度超过基体的熔点,基体会熔化,形成很好的冶金结合。
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李素丽;
王明哲;
李周平
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摘要:
Pick to metal melt injection after breaking into small droplets, through coordinated movement with motion platform device, can accurate deposition on substrates, to meet the requirements of stamping forming. However capillary metallic melts under different interference, easy appear skewed, the interrupt, can’t even intermittent problems, difficult to control the molten metal deposition process. So you need to metal melt injection of fluid-solid coupling system is studied.%金属熔体喷射断裂成小液滴后,通过与运动平台装置的协同运动,可在基板上准确沉积,以达到制件成形要求。然而受到不同因素干扰的毛细金属熔体容易出现偏斜、中断,甚至无法断续等问题,难以控制熔融金属沉积过程。因此需要对金属熔体喷射流固耦合特性进行系统的研究。
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钟浪祥;
胡金亮;
张博
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摘要:
金属熔体的扩散行为是凝聚态物理研究的重要课题之一.金属熔体的扩散系数是描述熔体质量传输现象的重要参数,精确的扩散系数对于基础材料科学研究和工程应用领域都非常重要.介绍了几种常用的金属熔体扩散系数测量技术以及国内关于金属熔体扩散的研究进展.由于受到各种因素的影响,如重力效应引起的对流,地面条件下测量得到的扩散系数往往存在很大的误差.总结了国外学者在空间微重力环境下开展的一系列的金属熔体扩散系数测量研究工作,由于技术和成本的限制,目前空间实验得到的精确的扩散测量结果还十分匮乏,这导致人们对金属熔体微观质量传输机制认识远远不足.结合现有的实验结果简要介绍了几种扩散理论模型,并予以简要的评述.最后给出了熔体扩散未来值得研究的方向,提出了未来要解决的科学及技术问题.%The study of the diffusion behavior in liquid metals is an important subject of condensed physics research.The diffusion coefficient of liquid metals is a key parameter to describe the mass transfer phenomena.Accurate diffusion coefficients are important for the studies of fundamental materials science and engineering applications.In this paper,several common measurement techniques and progress of domestic research on diffusion in liquid metals are introduced.Due to the influences of various factors such as convection caused by gravity,the diffusion coefficients measured on the ground often have great errors.This paper summarizes a series of research works in the microgravity environment carried out by foreign scientists.Due to the limitation of technology and cost,the precise diffusion measurement results obtained by the space experiment are still very lacking,that results in people`s understanding of the mass transfer mechanism of molten metal is far from enough.Several diffusion theory models are briefly introduced based on the existing experimental results.Finally,the future research direction of liquid metal diffusion is given,and the scientific and technical problems to be solved are proposed.
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李红;
李灿;
栗卓新
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摘要:
The effect of power ultrasound in molten metal shaping was summarized.The application and mechanism of ultrasonic treatment in the grain refinement,degassing and impurity removal in casting process,as well as strengthening of weld seam by reducing residual stress and promoting interfacial wetting in welding process were reviewed in details.The progress in high-speed photography of ultrasonic cavitation bubbles and synchrotron radiation X-ray imaging of crystal growth in molten metal was reviewed and discussed.It was proposed to adopt in-situ investigation of mechanism of ultrasound in liquid metal medium by combining high-speed photography and synchrotron radiation X-ray imaging.It aims to provide theoretical guidance for further applications of ultrasound in the molten metal shaping.%主要介绍功率超声在金属熔体成形领域中的作用,详述了超声在铸造成形、辅助焊接成形中细化晶粒、除气除杂、强化焊缝、减小残余应力、促进界面润湿等方面的应用和作用机理.针对超声空化气泡的高速摄影及金属熔体中晶体生长的同步辐射X射线成像观察的研究进展,提出将高速摄影与同步辐射X射线成像结合起来,通过原位观察方法研究超声波与液态金属媒质的相互作用机理,为进一步促进超声在金属熔体成形中的应用提供理论指导.
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阮飞;
王威威;
包金小;
贾桂霄;
李建朝
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摘要:
概括介绍了钙钛矿型质子导体的结构、质子传输机理等定氢探头材料相关基础理论,并重点介绍了金属熔体定氢探头的基本原理,探头材料的基本体系及基本要求,质子导体定氢探头的发展状况及目前存在的问题等,为金属熔体质子导体定氢探头领域的研究和开发提供参考.
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曾怡丹;
石力开;
张志峰;
梁博;
徐骏
- 《北京金属学会第五届冶金年会》
| 2008年
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摘要:
本文研究了用液流混合方法(CRP)制备A357半固态浆料时,熔体流动、熔体温度和反应器温度等因素对浆料组织的影响。结果表明,熔体经过反应器的强制混合后,形成的半固态浆料内部初生相呈细小的近球状,与未经处理的浆料组织有显著差异,而低的熔体温度和反应器温度有利于减小初生相尺寸,促进其形成近球状。进一步的分析说明液流混合影响了金属熔体的形核与生长过程,进而改变了凝固组织。
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- 贺利氏耐特电子国际有限公司
- 公开公告日期:2002-09-04
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摘要:
本发明涉及一种用于测定金属熔体或熔渣中氧活性的测量装置,其具有一个设置在支承管端部的测量头,该支承管上置有一个电化学测量元件,其中所述电化学测量元件上设有一根一端封闭的固体电解质管,该固体电解质管的封闭端和至少其外周的一部分被一根一端封闭的钢管包围,其中在所述固体电解质管内的封闭端上置有一种标准材料和邻接所述标准材料的填料,其中沿所述固体电解质管、用这样的方式置有一根用作电极的金属棒:使该金属棒一方面与所述标准材料接触,另一方面,又使之伸出所述固体电解质管的开口端,而且其中所述固体电解质管的开口端上设有一个套盖。所述测量装置的区别在于所述套盖的结构呈帽形,该套盖套装在所述钢管或固体电解质管的外表面上,还在于所述套盖具有透气性。