本文介绍了国外,特别是美苏两国对钢-铝异种金属采用电子束焊接的一些情况。给出了电子束焊接的工艺过程及其特点。电子束焊接具有一系列的优点,不仅在民用工业中的应用越来越多,而且在宇航和原子能工业中的应用更有其特殊的意义。 This article introduces some foreign countries, especially the United States and the Soviet Union on the use of electron beam welding of steel-aluminum dissimilar metals. The technological process and characteristics of electron beam welding are given. E-beam welding has a series of advantages, not only in the civilian industry more and more applications, but also in the aerospace and atomic energy industry has its special significance.