摘要
为了系统研究铁基金刚石钻头胎体配方组成对胎体机械性能的影响规律,本文采用极端顶点法设计胎体配方试验。胎体配方组成为Fe(含P23%)、WC、663-Cu、Ni、Co和Mn粉,试验测试指标为胎体硬度和耐磨性。对测试结果进行回归分析和非线性规划求解,分析了胎体配方组成对胎体机械性能的影响规律,从理论上得出了胎体硬度和耐磨性的最优值以及相应的胎体配方。结果表明:P可降低铁基胎体的烧结温度,有效阻止Fe对金刚石的热侵蚀作用。随着Fe(P-Fe)和WC含量的增加,胎体的硬度和耐磨性都得到明显改善,铁基胎体可以满足热压金刚石钻头对其机械性能的要求。
Extreme vertices method was employed to order to systematically study the effect law of matrix design diamond bit matrix formulation experiments in composition on matrix mechanical performances. The ingredients of the matrix formula are Fe （ including 23% P）, WC, 663-Cu, Ni, Co and Mn powder. The hardness and wear resistance of matrix were set to be the main testing indexes. Regression analysis and nonlinear programming were carried out subsequently on testing results to analyze the influence rule of matrix compositions on matrix mechanical properties. Optimal hardness and wear resistance of the matrix and their corresponding formulas were obtained. Analysis results indicated that phosphorus could reduce the sintering temperature to some extent and prevent the thermal erosion of iron to diamond particles effectively. With the increment of Fe （ P-Fe in fact） and WC powders, the hardness and wear resistance of matrix were both improved obviously, which proved that iron-based matrix could satisfy the requirements of hot-pressed diamond bit for mechanical properties.
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2009年第2期49-52,共4页
Diamond & Abrasives Engineering
关键词
热压
金刚石钻头
铁基胎体
回归分析
hot-pressing
diamond bit
iron-based matrix
regression analysis
