论文部分内容阅读
对异种金属材料的焊接,多年来焊接工作者进行了大量研究和探索,对铝与钢的联接,采用钎焊、摩擦焊、扩散焊和热挤压焊等方法,取得了很大进展。但由于钎焊后,需将整个零件清洗而去除钎剂;扩散焊需要有可以容纳整个结构件及焊接装置的真空室与真空设备;摩擦焊与热挤压焊时,构件需承受装夹压力,这就使得整个工艺过程复杂,设备昂贵,成本高,而可靠性往往较低,铝钢异种金属的联接在工程上的应用,就受到极大的限制,而我厂
Welding of dissimilar metal materials, welding workers over the years a lot of research and exploration, the aluminum and steel connections, the use of brazing, friction welding, diffusion welding and hot extrusion welding and other methods, made great progress. However, after brazing, the entire part needs to be cleaned to remove the flux. The diffusion welding needs a vacuum chamber and a vacuum apparatus which can accommodate the whole structure and the welding device. When the friction welding and the hot extrusion welding are carried out, the component needs to bear the clamping pressure , Which makes the entire process complex, expensive equipment, high cost, and reliability are often low, aluminum dissimilar metal joints in engineering applications, subject to great restrictions, and I plant