Abstract: To conduct the comprehensive experimental teaching and improve the experimental teaching effect,a comprehensive tester for hot mechanical properties of refractories was developed through integrating different loading and heating technologies,designing an open furnace structure,and developing a friendly measurement and control system.The tester has the maximum heating rate of 200 ℃·min^-1 and the maximum test temperature of 1 800 ℃,which can realize one-stop measurement of hot mechanical parameters such as the hot compressive strength,the hot tensile strength and the hot torsional strength.The experimental teaching application shows that with the characteristics of visible teaching process,vivid result display and integrated functions,the tester significantly mobilizes the enthusiasm of students to practice and to think about problems,and strengthens their understanding and mastery about theoretical knowledge,significantly improving the experimental teaching effect.

Key words: refractory, hot mechanical properties, hot compressive strength, hot tensile strength, hot torsional strength

摘要： 为了开展耐火材料高温力学性能的综合性实验教学,提升耐火材料高温力学性能实验教学效果,通过集成不同加载和加热技术、设计开放炉体结构、开发友好测控系统,研制了耐火材料高温力学性能综合测定仪。该仪器加热速率高达200 ℃·min^-1,最高试验温度达1 800 ℃,可实现高温耐压强度、高温抗拉强度和高温抗扭强度等高温力学参数的一站式测定。实验教学应用表明:该设备以其教学过程可视化、结果展示形象化和功能集成化等特点,显著调动了学生动手实践和思考问题的积极性,强化了学生理论知识的理解与掌握,实验教学效果提升明显。

关键词: 耐火材料, 高温力学性能, 高温耐压强度, 高温抗拉强度, 高温抗扭强度