日本科学家采用一种超声波技术,成功地把铝和陶瓷这两种截然不同的材料焊接在一起,从而解决了过去要把它们接合必须借助金、银等亲和性强的贵重金属作媒介、而且成本高、工序多、时间长的问题。日本科学家发现,振动频率为20～40千赫、振幅为几微米至50微米的超声波,可以改变铝和陶瓷接合面的物理结构,如果在接合面施加一定的压力,就可将这两种材料牢固地接合起来。他们就是根据这个原理成功地焊接 Japanese scientists used an ultrasonic technique to successfully weld two distinct materials, aluminum and ceramic, to solve the problem of past metals that had to be joined by precious metals such as gold and silver that are highly compatible High cost, multi-process, a long time. Japanese scientists have found that the vibration frequency of 20 to 40 kHz, the amplitude of a few microns to 50 microns ultrasonic can change the physical structure of the aluminum and ceramic junction surface, if a certain pressure is applied to the junction, these two materials Firmly join together. They are successfully welded according to this principle