电镀金刚石线锯快速植砂工艺研究

Preparation of rapid electroplating diamond wire saw

为了提高电镀金刚石线锯的制备效率,通过金刚石微粉表面化学镀镍、钢丝基体磁化处理等方式改进上砂工艺,结合SEM、EDS及高斯计等研究不同工艺因素对电镀线锯的制备效率及耐用度的影响。结果表明:基体磁感应强度、金刚石质量浓度及上砂时间对线锯制备效率及耐用度有重要影响;采用磁化基体制备线锯的最佳上砂工艺参数为:电流密度5A/dm2、基体磁感应强度0.6mT、上砂槽金刚石质量浓度15g/L、上砂时间30s、温度45℃。采用最佳工艺参数制备线锯的上砂时间缩减为金刚石及钢丝基体没有处理时制备线锯的上砂时间的1/20,制备效率可提高81%,同时还能保持较高的耐用度。

In order to improve the efficiency of preparing of diamond wire saw,sanding process is improved by chemical nickel plating on diamond micropowder surface,magnetization steel wire substrate.SEM,EDS and Gauss meter are used to study parameters influence on efficiency and durability.The experimental results show that the magnetic induction of substrate,diamond mass concentration and sanding time for wire saw preparation have important effect on the efficiency and durability.The best process parameters with magnetized substrate are：current density 5A/dm^2,magnetic induction of substrate is 0.6mT,diamond mass concentration 15g/L,sanding time 30 s,temperature 45℃.Compared with untreated diamond and substrate,the sanding time can be decreased by 1/20 of the original process,thus improving total process by 81%,while wire saw still maintains high durability.