According to the comparision of our sample with the same sore of sealing power tube from aboard, we put forward some proposals and give the effective way to improve the quality of products.

• 结合对失效产品的解剖,以及与国外不漏气的同类型功率管的对比分析,分析了影响玻璃封接金属管壳气密性的因素以及生产工艺对封接质量的影响,提出若干改进建议,并指出提高产品质量的有效途径。