不同铬含量的电熔镁铬砂显微结构分析  

Microstructure analysis of fused magnesite chrome sinter with different chromium content

作　　者：王聪 王莹莹 石艳茹 张大勇 Wang Cong;Wang Yingying;Shi Yanru;Zhang Dayong(Liaoning Qinghua Refractory Co.,Ltd.,Dashiqiao 115100,China;Liaoning Jinding Blasting Co.,Ltd.,Dashiqiao 115103,China;Northeast Pharmaceutical Group Shenyang No.1 Pharmaceutical Co.,Ltd.,Shenyang 110027,China)

机构地区：[1]辽宁青花耐火材料股份有限公司,大石桥115100 [2]辽宁金鼎爆破有限公司,大石桥115103 [3]东北制药集团沈阳第一制药有限公司,沈阳110027

出　　处：《耐火与石灰》2022年第5期21-24,52,共5页Refractories & Lime

摘　　要：镁铬砂作为构成镁铬砖的重要组成,对镁铬砖的耐火度、高温抗折强度、抗渣侵蚀性和热震稳定性等有很大的影响。本文介绍了电熔镁铬砂生产工艺和不同铬含量的镁铬砂在SEM下的显微形貌及不同放大倍数时的微观结构,分析了镁铬砂晶体尺寸、镁铬尖晶石的尺寸和晶界尺寸。Magnesite chrome sinter,as an important component of magnesium chrome brick,has great influence on refractoriness,modulus of rupture at elevated temperature,slag resistance and thermal shock resistance of magnesium-chrome brick. In this paper,the production process of fused magnesite chrome sinter and the SEM microscopic morphology of magnesite chrome sinter with different chromium content,SEM microscopic structure under different magnification were briefly introduces,the crystal size of magnesite chrome sinter,the size of magnesium chrome spinel and size of grain boundary were analyzed.

关 键 词：电熔镁铬砂 生产工艺 显微分析 

分 类 号：TQ175.14[化学工程—硅酸盐工业]