论文部分内容阅读
本发明提供了能提高电弧重燃特性的真空管用触头材料的制造方法。将导电成分 (Cu、Ag中至少一种 )和耐电弧成分 (W、Mo、WC、Mo C中至少一种 )按所定量进行混合 ,制得混合体。混合体在非氧化性气氛中烧结 ,制得平板状的烧结体。由上述两个工艺过程构成的触头材料的制法中 ,平板状烧结体在加热时 ,加热前沿从烧结体的一端到另一端 ,以 0 .1～ 2 0 mm/秒的速度移动。这样可制得除去了烧结体面上的污染物、热应力并抑制了加工变形、具有电弧重燃特性优良的触头材料
The present invention provides a method of manufacturing a contact material for a vacuum tube capable of enhancing the reheating characteristics of the arc. A mixture is prepared by mixing a conductive component (at least one of Cu and Ag) and an arc-proof component (at least one of W, Mo, WC and Mo C) in a predetermined amount. The mixture is sintered in a non-oxidizing atmosphere to obtain a flat sintered body. In the method of manufacturing the contact material formed by the above two processes, the flat sintered body is heated and the heated front moves from one end to the other end of the sintered body at a speed of 0.1-120 mm / sec. In this way, it is possible to produce a contact material having excellent arc reignition characteristics by removing contaminants and thermal stress on the sintered body surface and suppressing process distortion