国外热处理界早在六十年代初期就开始着手研究将盐浴炉插入式电极改为埋入式电极,以提高炉膛利用率,缩短升温周期,降低起动时间的热损耗。六十年代末,国内一些单位进行了这项改炉工作的试验,并取得了初步收效。我们在参考兄弟单位改炉经验的 Foreign heat treatment sector as early as the early 1960s began to study the salt bath insert electrodes into buried electrodes, in order to improve the furnace utilization, shorten the heating cycle, reduce the heat loss of starting time. In the late 1960s, some units in China carried out the trial of this furnace reforming work and achieved initial success. We are referring to the experience of brothers unit converter