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  welding
     Research on the Digital Control of Welding Inverter
     弧逆变电源的数字化控制
短句来源
     Study on the Welding Material and the Microstructure and Properties of the Welded Joint in a 800MPa Grade Structural Steel
     新一代800MPa级超低碳微合金钢材及接头组织性能研究
短句来源
     Study on Power Factor Correction of Arc Welding Inverter Supply
     弧逆变电源功率因数校正技术的研究
短句来源
     Research on the Methods for Quality Monitoring Based on Arc Sound Signal in CO_2 Arc Welding
     基于电弧声信号的CO_2质量监控方法研究
短句来源
     Research on the Mechanism of Undercut Formation and High Speed Welding Technology
     缝咬边形成机理及高速工艺研究
短句来源
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  weld
     Study on Rapid Reconfigurable Automobile Weld Manufacturing System and Its Key Supporting Techniques
     快速可重构汽车装制造系统及其关键支持技术研究
短句来源
     Stress Analysis of the External Flat Head with Fillet Weld
     外置式单面角平端盖的强度分析
短句来源
     PROPAGATION OF WELD TOE CRACKS UNDER FATIGUE LOAD
     趾裂纹在疲劳载荷下的扩展
短句来源
     Research on the Welding Relational Expression of Great-Diameter Wire CO_2 Gas Shielded Arc Weld and Formulation of the Microcomputer Program of Welding Conditions
     粗丝CO_2规范参数关系式的研究及规范参数微计算机程序的制定
短句来源
     The Influence of Inclusions on Properties of the Cast Weld Structure Composed of Low Carbon High Manganese Steel Casting
     低碳高锰铸钢件中夹杂物对铸结构性能的影响
短句来源
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  solder
     According to the processing parameters, the solder Sn-37Pb, Sn-45Pb, Sn-0.7Cu and Sn-3.8Ag-0.7Cu solder balls have been prepared.
     根据确定的工艺参数,制备Sn-37Pb、Sn-45Pb、Sn-0.7Cu 和Sn-3.8Ag-0.7Cu球。
短句来源
     the evolution of Sn-9Zn-3Bi/Cu interfacial microstructure which consists of solder/Cu-Zn /Cu after soldering reaction.
     Sn-9Zn-3Bi/Cu界面显微结构的演变,其后界面构成为:钎料/Cu-Zn/Cu。
短句来源
     Fillet-lifting phenomenon of wave soldering with Sn-Bi-Ag-Cu solder
     Sn-Bi-Ag-Cu钎料波峰点的剥离现象
短句来源
     The research contains the IMC growth of Sn-Pb/Cu and Sn-Ag/Cu in which the interfacial microstructure consists of solder/Cu-Sn/Cu;
     具体包括:Sn-Pb/Cu和Sn-Ag/Cu界面金属间化合物的生长,其后界面构成为:钎料/Cu-Sn/Cu;
短句来源
     Fillet-lifting mechanism for Sn-Bi-Ag-Cu solder joint in lead-free wave soldering
     无铅波峰Sn-Bi-Ag-Cu钎料点剥离机制
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  “焊”译为未确定词的双语例句
     1.Molecular Dynamics Simulation for the Vibration Characteristics of Nonlinear Optical Material BBO 2.Reliability Research on Flip Chip Electronic Packaging
     1.非线性光学材料BBO振动特性的分子动力学模拟\2.电子封装倒装的可靠性研究
短句来源
     AN INVESTIGATION ON THE BEHAVIOR OF THE DIFFUSION OF THE BORON IN THE SUPERALLOY K18 TLP BONDING
     K18合金等温凝固扩散时硼扩散行为研究
短句来源
     SOME PROBLEMS ON DEVELOPMENT OF HIGH STRENGTH WELDABLE Al-Zn-Mg ALLOYS
     高强可A1-Zn-Mg合金研制中几个问题的探讨
短句来源
     THE TRANSIENT-LIQUID-PHASE BONDING OF SUPERALLOY K18 AND THE DIFFUSION BEHAVIOR OF ELEMENT BORON
     K18合金等温凝固扩散及硼扩散行为的研究
短句来源
     Post-Welding Heat Treatment for FV520(B) Stainless Steel Impellers
     FV520(B)不锈钢叶轮后热处理工艺探讨
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  welding
Research on overlaying welding rod of high hardness maraging steel
      
Laser vision sensing based on adaptive welding for aluminum alloy
      
A laser vision sensing based on the adaptive tungsten inert gas (TIG) welding system for large-scale aluminum alloy components was established to fit various weld groove conditions.
      
The joint geometry data, such as the bevel angle, the gap, the area, and the mismatch, etc., aided in assembling large-scale aerospace components before welding.
      
They were also applied for automatic seam tracking, such as automatic torch transverse alignment and torch height adjustment in welding.
      
更多          
  weld
A laser vision sensing based on the adaptive tungsten inert gas (TIG) welding system for large-scale aluminum alloy components was established to fit various weld groove conditions.
      
A new type of laser vision sensor was used to precisely measure the weld groove.
      
The process results in a good weld formation and high welding quality, which meet the requirements of related standards.
      
First, twelve parameters related to weld quality are mined from electrode displacement signal on the basis of different phases of nugget formation marked by simultaneous dynamic resistance signal.
      
At the same time, linear regression, nonlinear regression and radial basis function (RBF) neural network models are set up to evaluate weld quality between the selected parameters and tensile-shear strength.
      
更多          
  solder
The contacts of a tin-lead solder (IIOC 61) with copper, brass and nickel in various types of disinfectants are investigated as galvanic couples where the solder always functions as the anode.
      
Synthesis and Properties of Low-Temperature Solder Creams Based on Polyester Resin and Diethyldibenzylammonium Bromide
      
Synthesis and properties of solder creams based on polyester resin modified with rosin and diethyldibenzylammonium bromide were studied.
      
The feasibility of using diethyldibenzylammonium bromide as soldering flux in low-temperature solder creams was analyzed.
      
Preparation of Solder Powders and Properties of Low-Temperature Solder Creams Based on a Polyester Resin and Dimethylethylphenyl
      
更多          


~~

前燃料工业部电业管理总局东北设计分局于1952—1953年曾设计了东北某地22万伏高压送电线路。在苏联专家维金尼科夫的指导下,由于设计分局和东北电业局同志们的努力.该线路于1954年1月27日胜利地全部建成。由于初次从事这项工作,设计部门缺乏经验,为了验证设计方法是否正确,铁塔工作是否可靠,特于1953年6月间进行了线路中为数最多的直线铁塔的真形实验。铁塔结构是参考苏联酒杯形铁塔型式进行设计的,高25.3公尺。由于该线路所在地区的地形对结构的要求,以及受当时施工条件的限制,因而采用螺栓结构,材料为钢3,四脚分别置于混凝土预制基础上。为了消除试验时基础可能产生位移而影响铁塔的试验结果起见,将基础特别加强。试验按照各种设计的受力情况进行,包括正常情况、事故情况及超荷情况;并将作用于导线及塔身的全部风力以当值风压代替,集中作用于横梁上。用经纬仪在塔的四面测定塔在受外荷作用时的挠曲情况,用千分表(因受当时设备条件的限制)测定主要构件的变形,再由变形推出构件中的应力大小。由于用千分表在高空观测构件的变形极为困难,同时实验前的准备工作亦不足,因而测定主要构件的应力极不准确,只能从塔身的变化结果来判断铁塔的工作。根据测得的...

前燃料工业部电业管理总局东北设计分局于1952—1953年曾设计了东北某地22万伏高压送电线路。在苏联专家维金尼科夫的指导下,由于设计分局和东北电业局同志们的努力.该线路于1954年1月27日胜利地全部建成。由于初次从事这项工作,设计部门缺乏经验,为了验证设计方法是否正确,铁塔工作是否可靠,特于1953年6月间进行了线路中为数最多的直线铁塔的真形实验。铁塔结构是参考苏联酒杯形铁塔型式进行设计的,高25.3公尺。由于该线路所在地区的地形对结构的要求,以及受当时施工条件的限制,因而采用螺栓结构,材料为钢3,四脚分别置于混凝土预制基础上。为了消除试验时基础可能产生位移而影响铁塔的试验结果起见,将基础特别加强。试验按照各种设计的受力情况进行,包括正常情况、事故情况及超荷情况;并将作用于导线及塔身的全部风力以当值风压代替,集中作用于横梁上。用经纬仪在塔的四面测定塔在受外荷作用时的挠曲情况,用千分表(因受当时设备条件的限制)测定主要构件的变形,再由变形推出构件中的应力大小。由于用千分表在高空观测构件的变形极为困难,同时实验前的准备工作亦不足,因而测定主要构件的应力极不准确,只能从塔身的变化结果来判断铁塔的工作。根据测得的塔形变化结果可得下列结论:1)结构受重复荷重时,变形与荷重关系曲线中的剩余变形随荷重次数之增加而减少,即全结构的弹性模数随荷重次数之增加而提高,最后形成封闭环形;2)由变形荷重曲线可见第三点以下的变形稳定较早,可见膈材对结构的变形性质有良好影响。3)由各种实验的变形曲线的规律来看,结构中并无特别弱的局部缺陷部分;4)实测挠度皆比计算值大,特别是初次加荷的情况。因而铁塔结构的强度是安全可靠的,不过挠度和理论计算值相差过大,为了确定原因起见,继续在实验室内进行了螺栓接头的实验研究工作,并得出了螺栓接头的平均弹性模数值。最后建议在进行螺栓结构的挠度计算时,应将各件分成接头部分和非接头部分来计算,而整个结构则按照平均折算模数计算。根据螺栓接头的试验结果,按平均折算模数求得的铁塔挠度为:初次受荷时实测值小于计算值,重复受荷时实测值约和计算值相等。据此,足以证明铁塔设计是正确的,结构工作完全安全而可靠。

When babbitt is casted on the surface of cast iron, it is not easy for the babbitt to bond with cast iron as it does with steel, because cast iron contains more impurities, such as carbon, silicon, etc., especially the graphite which interrupts the babbitt from bonding with iron. An acid solution of rather high percentage of hydrofluoric acid for pickling is used with an attempt of producting a rather pure iron layer on the surface of cast iron. The iron articles, so treated, are then rinsed with hot water and...

When babbitt is casted on the surface of cast iron, it is not easy for the babbitt to bond with cast iron as it does with steel, because cast iron contains more impurities, such as carbon, silicon, etc., especially the graphite which interrupts the babbitt from bonding with iron. An acid solution of rather high percentage of hydrofluoric acid for pickling is used with an attempt of producting a rather pure iron layer on the surface of cast iron. The iron articles, so treated, are then rinsed with hot water and cold water, and transferred into a solution of alkaline salt to boil for more than half an hour. The surface for reaction is, then, heavily brushed with fine copper brush. After washing in running wa er and passing through a solution of hydrochloric acid solution, the cast iron is then fluxed in a hot solution of zinc chloride and finally transferred to the metallic bath for "tinning". The process of "tinning" should be carried out under strictly controlled temperature and time of soaking. After"tinning", the lining of babbitt metal is poured on the surface of cast iron in a permanent mould and the rate of cooling should be carefully observed. A number of tests of the articles, so babbitted, show that the bonding force between cast iron and the babbitt is above 302 kg/cm~2. If the centrifugal casting method were used as in the manufracture of bearing, the bonding force could be expected to be stronger.

在铸铁面上粘牢一层巴氏合金,对动力工业或机械工业都很有用,但铸铁含有的炭,矽,錳磷硫等杂质较钢为多,特别是游离炭,它阻碍巴氏合金与铸铁的粘牢,这里的研究是用酸性溶液来在铸铁面上进行产生较纯的铁层,然后用鹹性溶液沸煮,并用软铜丝刷重刷铸铁需加合金之一面,通过鹽酸溶液,及热的氯化鋅溶液,然后进行镀剂及浇入巴氏合金,在鍍剂时,必需严格控制温度与时间,而在浇入巴氏合金时必需控制铸模温度和浇铸温度,合金铸入后冷却情况亦需适宜。用这样的方法来把巴氏合金浇铸在铸铁面上,其粘牢程度很好,经过很多次的试验机试验,得到铸铁与巴氏合金间的粘牢力是320公斤/厘米~2,这是为适合一股工业上应用而在靜模浇铸所得的结果。如专为制原动力机的軸承的话,可用离心浇铸,这样,铸铁与巴氏合金间的粘牢力还可较上面所得数字高一些。

Using type LSK-I-I (Watt IKVA)resistance welding machine, we successfully welded Aluninum wire with 0.33-0.77 mm. in diametor. The tensile strength and electrical resistance of welding point satisfied the industrial requirement.

用LSK—Ⅰ—Ⅰ型(功率:1KVA)对焊焊接机,成功的接了Φ0.77mm—0.33mm,的鋁綫。接結果接头处的抗拉强度及电阻率达到工业上的要求。

 
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