文章概述了真空循环脱气装置上盖、下部槽与浸渍管用耐火材料的改进,给出了上盖、下部槽、浸渍管用耐火材料的化学成分。指出,通过改进,上述各部耐火材料的使用寿命明显提高(上盖使用寿命高达2000炉次以上,下部槽连续使用寿命为1324炉次,浸渍管使用寿命由100炉次增至250炉次),成本大幅度降低,与82年相比86年约降低60％左右。图7 The article summarizes the improvement of the refractory materials in the upper and lower tanks of the vacuum cycle degasser and the immersion pipe, and gives the chemical compositions of the refractory materials in the upper and lower tanks and the immersion pipe. Pointed out that through the improvement, the service life of refractory materials of the above ministries has been significantly improved (the service life of the top cover is over 2000 times, the continuous service life of the lower part is 1324 times, and the service life of the immersion tube is increased from 100 to 250 times) Significantly reduce the cost, compared with 82 years about 86% reduction in about 60%. Figure 7