The properties of MgO-C materials with different graphite size distributions

摘要：

　　Monolithic stopper is one of the functional refractories.The security and continuity of the continuous casting maybe irrupted by the abnormal condition of monolithic stopper.MgO-C material composite monolithic stopper is often used to cast Ca-treated steel.But the thermal expansion of MgO-C materials is relatively large and there is a poor thermal matching between rod part and body part.To improve thermal shock resistance of MgO-C materials,the properties of MgO-C materials with different graphite size distributions are researched.The results show that 1000 mesh graphite addition will decrease thermal shock resistance,fracture energy and thermal expansion will increase.MgO-C materials with combined addition of 595 and 199 graphite present good thermal shock resistance.The trends of thermal shock resistance for MgO-C refractories by immerging molten steel methods agree with that of Rst.

关键词： Monolithic stopper MgO-C materials thermal shock resistance

作者: Liu Guoqi Li hongxia Yang Jinsong Yu Jianbin Yang Wengang Ma Tianfei Qian Fan

作者单位: State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,China

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 611-614

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）