(1.中国地质大学(武汉) 博士后流动站，武汉430074；
2. 中南工业大学资源环境与建筑工程学院， 长沙410083)
摘 要: 通过对4种胎体的锯切试验， 研究了胎体耐磨性同胎体高温硬度的关系，提出了胎体高温软化的概念，并在测定胎体高温软化点的基础上，分析了胎体耐磨性同胎体高温软化点的关系。 研究结果表明， 胎体的高温软化点可以反映胎体耐磨性的好坏；对已知岩石的切割试验表明，在金刚石参数相同的条件下， 选择成份合适的胎体可以使金刚石锯片的平均寿命提高20%～30%。
关键字: 金刚石； 锯片； 耐磨性
（1. Postdoctoral Station, Geology University of China, Wuhan 430074, P.R.China;
2. College of Resource, Environment and Civil Engineering,
Central South University of Technology, Changsha 410083, P.R.China）
Abstract:According to sawing experiments with single saw blade, the relationships of wear resistance and high temperature hardness of four matrix formulations were investigated, and the concept of matrix softening at high temperature was put forward. Based on measuring the matrix softening points at high temperatures, the relationship between wear resistance and softening point was analyzed. The experimental results show that the softening point can reflect the property of wearresistance of the matrix; choosing an appreciate matrix formulation could improve the work life of diamond saw blade by 20%～30% under the same conditions of diamond parameters and rock.
Key words: diamond； saw blade; wearresistance
