通过数值仿真,研究了镀槽结构与搅拌速率对镀液流场和镀液中金刚石颗粒分布特性的影响,并制备了镍-磷-金刚石复合镀层,研究了镀槽结构与搅拌速率对镀层中金刚石含量,粒径分布以及镀层显微硬度和耐磨性的影响.结果表明,镀槽中添加挡板和提高搅拌速率,可以明显改善镀液流场的均匀性,有利于金刚石颗粒在镀液与镀层中的分散与均匀分布,显著提高复合镀层的显微硬度与耐磨性;当镀槽中有挡板、搅拌速率为600 r/min时,所制备的微米金刚石-镍-璘复合镀层经400℃热处理1 h后,显微硬度高迭1442HV,镀层几乎无磨损.
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