真空平板玻璃激光焊接的封边试验

The sealing experimental study of the laser welding of vacuum plate glass

对真空平板玻璃进行激光封边试验,分析了激光焊接后的金相组织图、扫描电镜组织图、能谱图.试验结果表明:激光焊接后得到的金相组织结构排布均匀、致密,焊料的断面组织结构均匀结合紧密,玻璃与焊料结合面紧密、熔合较好;能谱分析可以看出结合面处玻璃与焊料的元素已经出现熔合现象;根据试验结果和分析结论可知:采用激光焊接对真空平板玻璃进行封边可以得到理想的焊接结合性能与组织结构,说明激光焊接是真空平板玻璃封边的一种有效焊接方法.

The laser welding is used to weld vacuum plate glass. The metallographic diagram SEM diagram and the energy spectrum diagram are analyzed. The experimental results show that metal- lographic structure can be arranged uniformly and densely, the organizational structure of solder cross-section is uniform and tight, the joint surface of glass and solder is fused tightly fusion phe- nomenon of elements of the glass and the solder emerges at the joint surface, the laser welding of vacuum plate glass sealing side can get desired weld organizational structure and good combining performance of weld and parent metal. It verifies that the laser welding is a preferable method of vacuum plate glass sealing.