超细粒度砂轮制备技术研究现状

Preparation technique of ultra fine-grained grinding wheel

采用传统的方法制备的超细粒度砂轮,由于磨料的团聚易对工件表面产生划痕,影响了工件的表面质量。为了解决这些问题,国内外开展了超细粒度砂轮制备技术的研究。综述了国内外采用电泳沉积法、化学凝胶法、高分子网络凝胶法及单组分溶胶法制备超细粒度砂轮的研究现状。介绍了运用这些方法制备的超细粒度砂轮的磨削效果以及超细粒度磨料在溶剂中的分散情况,并比较了各种砂轮制备技术的优缺点。

Ultra fine-grained grinding wheels made by traditional techniques are easy to leave scratch marks on workpiece surfaces due to the aggregation tendency of ultra-fine abrasives.These scratch marks affect the quality of workpiece surfaces.In order to solve the problem,preparation techniques of ultra fine-grained grinding wheel in China and abroad are discussed.Manufacturing techniques of ultra fine-grained grinding wheel are summarized.These techniques include electrophoretic deposition method,polyacrylamide-gel method,chemical gel method,single component sol method,etc.Grinding effect of ultra fine-grained grinding wheel,as well as the dispersion state of the ultra-fine abrasive grains are introduced.The advantages and disadvantages of various manufacturing methods are compared.