钎焊的

The effects of preheating on temperature and stress fields of beryllium ring during laser brazing process were studied.

研究预热对铍环激光束钎焊过程温度场和应力场分布的影响。

The braze and interfacial microstructures were characterized by optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy.

在钎焊和界面微观结构的特点是光学显微镜，扫描电子显微镜和能谱。

GEA Ecoflex is the direct successor to the company of Eduard Ahlborn that was pioneering in the invention of plate heat exchangers in 1928.Since 1995 it is the competence center within the GEA Group for gasketed, brazed and fullywelded plate heat exchangers.

GEA Ecoflex前身为Eduard Ahlborn公司——世界第一台板式换热器的发明者。1995年起，它是GEA集团中生产密封圈式，钎焊式，和全焊式的板式换热器的核心。

Using a simple analytical model equilibrium, the dependence of tokamak edge safetyf actor qedge which can be understood as q~ for a limiter device or q95 for a divertor device, and the shear value are calculated and compared with the ITR~recommended formula.

重点讨论了适合于磁约束核聚变实验装置第一壁上W／Cu复合材料连接的几种方法：电子束焊、钎焊、热等静压连接、烧结熔渗法、等离子体喷涂法，并列举了第一壁材料与热沉材料成功连接时电子束辐照热负荷实验的情况。

The brazing process includes selection of brazing materials, pre-brazing preparation, regulation and deformation control of brazing parameter. The Al-Si alloy wires core was used as filler metal and the gasoline flame with quincunx nozzle was used as heating source. Through FEM analysis, a set of technological equipment was designed to control brazing distortion.

通过对焊接材料、焊接规范、焊接工装等方面进行的试验和分析，确定了6063铝合金门窗框的钎焊采用无腐蚀性的Al-Si合金铝钎焊药芯焊丝作为钎料，汽油火焰作为加热热源的工艺方案，并通过有限元分析设计了简单易用的焊接工装以控制焊接变形。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

This company is a scitech enterprise mainly involved in researching, developing, and producing tin solder thread,tin solder bar,tin solder paste, solder, environment-oriented detergent, and industrial soft solder materials.

本公司是一家主营焊锡丝、焊锡条、无铅焊料、焊锡膏、助焊剂、环保型清洗剂等电子、电工业用软钎焊用材料研发与生产的科技型企业。

Reviews the present progress in joining of aluminum metal matrix composites. Fusion welding, solid state bonding and brazing are discussed in detail.

阐述了铝基复合材料焊接研究现状，讨论了熔化焊连接、固相连接和钎焊在铝基复合材料连接中的应用和存在的问题。

High purity alumina ceramics were brazed to niobium metal to analyze the effects of brazing temperatures and Ti content in the active AgCuTi alloy filler on the joint microstructure,interfacial reactions and shear strengths.

为了确定高纯氧化铝陶瓷与金属Nb 的直接钎焊工艺参数，采用AgCuTi活性钎料，研究了钎焊温度和钎料中的钛含量对接头组成、界面反应以及接头剪切强度的影响。

As the brazing temperature is different, the eutectic reaction on brazing joints is different, and the emergence of eutectic liquid greatly enhances the proliferation ability of copper and silicon.

不同的钎焊温度，钎焊接头表现出不同的共晶反应，且共晶液相的产生极大地促进了铜和硅的扩散能力。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。