热压金刚石钻头铁基胎体机械性能的研究

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。

Study on mechanical performance of iron-based matrix for hot-pressed diamond bit

Extreme vertices method was employed to design diamond bit matrix formulation experiments in order to systematically study the effect law of matrix 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 compositi...