离子束冷焊法

• 作 者: 孟宪民
• 出 处: 新技术新工艺
• 发表日期: 1983年06期
• 关键词: 固态焊 原子 氧化层 水气 有机物 氧化物 杂质 一股 氮化物 内部

道理上讲,如果使两个金属表面紧密接触,一个表面的原子就会靠近另一个表面的原子,原子之间内部吸引力形成一股穿透内表面的强大力量,即可形成固态焊点。事实上由于金属表面有一些杂质,如氧化物、氮化物、水气及有机物等,所以金属之间做不到紧密接触,尤其氧化层防碍金属之间的原子连接。氧化层的附着力极强,很难从金属表面清除。

Theoretically, if the two metal surfaces are brought into close contact, one surface atom will be closer to the atoms on the other surface, and the internal attraction between the atoms will form a powerful force penetrating the inner surface to form a solid solder joint. In fact, due to the metal surface with some impurities, such as oxides, nitrides, water vapor and organic matter, so the metal can not be in close contact with each other, especially the oxide layer hinders the atomic connections between metals. Oxide layer adhesion is very strong, it is difficult to remove from the metal surface.