本文介把利用Al_2O_3-MnO-SiO_2及Al_2O_3-CaO-MgO系统作粘结剂制作镍粉烧结氧化物阴极-热丝组合件。镍基阴极组合件的预热时间缩短一半、加热功率降低一瓦多,已开始在—只小功率速调管中使用,钼基阴极组合件可以使预热时间缩短到原来的1/6, 加热功率约降低3瓦。此外,减小阴极质量、改变热丝形状,可使预热时间缩短一半多、加热功率降低一瓦。这种方法已正式用于一只盘封三极管中。 This paper describes the use of Al_2O_3-MnO-SiO_2 and Al_2O_3-CaO-MgO system as a binder nickel powder sintered oxide cathode - hot wire assembly. Nickel-based cathode assemblies reduce the preheating time by half and the heating power by more than one watt. They have started to be used in only low-power klystron tubes. The molybdenum-based cathode assembly can shorten the preheating time by 1/6, Heating power is reduced by about 3 watts. In addition, reducing the quality of the cathode, changing the shape of the hot wire, can shorten the warm-up time by more than half and reduce the heating power by one watt. This method has been officially used in a disk-sealed transistor.