1 为防止炉后再次回碳,提高钢包炉龄的钢包工作层整体浇注新工艺于7月23日在炼钢厂首次进行实验性应用。目前炼钢厂所用钢包工作层均由耐火砖砌筑而成,材料成分主要为镁碳和铝镁碳。使用这种耐火材料的钢包在使用过程中普遍存在炉后回碳现象,这些不仅在处理一些低碳 1 In order to prevent the furnace carbon back again, to improve the age of the ladle furnace ladle working layer integral pouring new technology on July 23 for the first time in the steel mill experimental applications. At present, the steel ladle working layers used in steel mills are made of refractory bricks, and the material components are mainly magnesium carbon and aluminum magnesium carbon. The use of this refractory ladle in the course of the widespread use of carbon back to the furnace, which not only in the treatment of some low-carbon