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随着氩弧焊和等离子焊接、切割、喷涂等技术的不断提高和发展,对电极材料也提出了新的性能要求,如:更好的活性物质和含量以降低逸出功来提高电弧性能;更高的化学稳定性以适应在更多种气氛下使用;更好的材料结构使活性物质扩散和蒸发相适应,以及高温下耐气流的冲刷。同时要求非放射材料,以彻底消除放射性对人体的危害和环境污染等等。为此,我们于1972年研制成功了铈钨电极材料,在国内已基本取代了放射性钍钨电极
With the continuous improvement and development of TIG and plasma welding, cutting, spraying and other technologies, new performance requirements have also been proposed for electrode materials, such as: better active materials and content to reduce work function to improve arc performance; Higher chemical stability to adapt to a wider range of atmospheres; Better material structure allows diffusion and evaporation of active substances to adapt to, as well as the resistance to air flow erosion at high temperatures. At the same time require non-radioactive materials to completely eliminate radioactive hazards to the human body and environmental pollution and so on. To this end, we successfully developed cerium tungsten electrode material in 1972, has basically replaced the radioactive thorium tungsten electrode