通过在铝液质量检测系统中使用的真空密封材料的效果表明 ,柔性石墨材料在 80 0℃高温条件工作 ,化学稳定性良好 ,不污染铝液 ,密封性和使用性能完全满足铝液检测的要求。系统处于真空条件下 ,柔性石墨的氧化不明显 ,非密封端面则不影响系统的密封性。是一种理想的热态真空密封材料 The results of the vacuum sealing material used in the aluminum liquid quality inspection system show that the flexible graphite material works under the high temperature of 80 0 ℃ and has good chemical stability and does not pollute the liquid aluminum. The hermeticity and serviceability fully meet the requirements of liquid aluminum testing . The system is under vacuum conditions, the oxidation of flexible graphite is not obvious, the non-sealed end does not affect the system’s sealing. Is an ideal thermal vacuum sealing material