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为了提高我国取向硅钢行业脱碳连续退火气氛炉内衬用抗渗碳隔热耐火材料的安全性和隔热效率,本文对国产高温抗渗碳隔热材料的热物理性能进行了探讨,并且与国外同类产品进行了对比分析。指出了提高抗渗碳隔热材料的使用寿命主要是通过改良砖材结构中的矿相组成;而提高国产抗渗碳隔热砖性能的技术途径是对显微组织结构(主要为气孔形状、大小)的优化以及对Fe_2O_3含量的控制。
In order to improve the safety and thermal insulation efficiency of anti-carburizing thermal insulation refractory lining in the decarburization continuous annealing atmosphere furnace of China’s oriented silicon steel industry, the thermal physical properties of domestic high-temperature anti-carburizing insulation material are discussed in this paper, Foreign similar products for a comparative analysis. It is pointed out that improving the service life of the anti-carburizing insulation material is mainly through improving the phase composition of the brick structure. The technical approach to improve the performance of the domestic anti-carburizing insulating brick is to change the microstructure (mainly the shape of the pores, Size) and the control of Fe 2 O 3 content.