摘要
采用三种不同类型矿石对邦自律由功指数算式中Grp，Pi和P80间的关系进行了研究，结果表明：Grp=k1·pi，Pi=k2·P80因此，只要准确地做一次标准律启功指数试验，就能用Grp，Pi和P80间的关系计算出其它任意自矿位瘦的律后功指数；同时利用Pi=k2·P80的关系为测定要求的磨矿位度律启功指数时如何确定试验筛子提供依据．
The relations between Grp, Pi and P80 in the formula of Bond rod milling workindex are studied by testing three kinds of ores. The results show that Grp=Ki. Pi and Pi=k2· P80. BY doing a test on the standard rod milling work indices, the rod milling indices ofarbitrary size production may be calculated according to the relations between Grp, Pi and P80.In the meantime, the relation Pi=k2. P80 provides the basis for the determination of screensin the measurement of rod milling work index for given milling size.
