基于电子束扫描控制的中间层熔炼技术  

The Interlayer Fusion Metallurgy Technology Based on Electron Beam Scanning Control

作　　者：李少青[1] 张毓新[1] 王学东[1] 姚舜[1] 

机构地区：[1]上海交通大学焊接工程研究所,上海200030

出　　处：《上海交通大学学报》2005年第11期1771-1774,共4页Journal of Shanghai Jiaotong University

摘　　要：试验采用按一定配比混合的铼、钛等金属粉末作为复合中间层材料,利用开发的电子束扫描控制系统,通过电子束束流大小、扫描轨迹形状、扫描点数、扫描频率和加热时间等因素的调节,控制电子束输入能量的分布,从而控制基体材料对中间层的稀释率,最终达到控制中间层成分的目的.试验结果表明,用受控电子束熔炼粉末金属可以获得满意的中间层材料.A few kinds of metal powder such as Re, Ti mixed in a certain element proportion are selected as a composite interlayer in the investigation. The electron beam（F.B） input energy distribution can be effectively controlled by adjusting the beam current magnitude, shape of scanning track, scanning point numbers, scanning frequency, heating time and so on. As a result, the dilution rate that the interlayer is diluted by the Ti base material can be controlled, that is, the composition of the interlayer metal can be controlled. The experimental results indicate that the powder fusion metallurgy with the controlled F.B can achieve the approved interlayer.

关 键 词：粉末熔炼 中间层 电子束钎焊 能量控制 

分 类 号：TG456.9[金属学及工艺—焊接]