如所知,国外大多用天然金刚石做为钻探磨料,而自然界所提供的金刚石从来就不丰富,特别是适合于钻探用的、质量较好的金刚石长期供不应求.随着工业金刚石的应用日益广泛,各工业部门对金刚石的需求量也日益增大,工业金刚石供不应求的局面就更趋严重.为了解决这个问题,南非采取了一种改造天然金刚石的方法,即把原来不适于做钻探磨料用的低品级金刚石经过圆化和抛光 As we all know, most foreign diamonds are used as drilling abrasive, while the nature of the diamond has never been rich, especially for drilling purposes, better quality diamond long-term demand.With the increasingly widespread use of industrial diamonds, In order to solve this problem, South Africa adopted a method of rebuilding natural diamonds, which is to reduce the amount of diamond that is not suitable for drilling abrasives Grade diamonds are rounded and polished