1 前言高速钢磨屑是生产量具、刃具等工具过程中产生的固体废料(俗称砂轮末)。据不完全统计,仅哈尔滨市几个主要企业(诸如哈尔滨第一工具厂、第二工具厂、哈尔滨量具刃具厂)每年就产生这种磨屑千余吨,因其中含有大量的高速钢粉末(含钨、钼、铬、钒等希贵金属),是不可忽视的综合利用宝贵资源,但是,由于其粒度细,还含油污和工业垃圾,一直未被很好的利用。为此,我研究所对其进行了大量的分选试验研究工作。在对磨屑的物质组成及其在水中的分散研究试验的基础上,进行了小型分选试验,获得了良好的技术指标,高速钢精 1 Introduction High-speed steel grinding debris is the production of measuring tools, cutting tools and other tools generated during the solid waste (commonly known as the end of the wheel). According to incomplete statistics, only a few thousand tons of such abrasives are produced annually in several major Harbin enterprises (such as Harbin No.1 Tool Factory, No. 2 Tool Factory and Harbin Measuring and Cutting Tool Factory), which contains a large amount of high-speed steel powder Tungsten, molybdenum, chromium, vanadium and other precious metals), can not be ignored is the comprehensive utilization of valuable resources, but because of its fine particle size, but also contains oil and industrial waste, has not been well utilized. To this end, I Institute carried out a lot of sorting test research. On the basis of the research on the material composition of the wear debris and its dispersion in water, a small sorting test was carried out, and good technical indexes were obtained. High speed steel precision