机床导轨的使用寿命和精度保持性在很大程度上依赖于导轨耐磨性的提高。目前我国80％以上的机床导轨仍使用耐磨性较差的孕育铸铁,远不能适应国民经济发展的需要,我厂为此进行了探讨。两年多来的试验和生产实践表明,硼铸铁是一种很有前途的机床导轨材料。 The service life and precision retention of the machine’s guide rail depend to a great extent on the increased wear resistance of the guideway. At present, more than 80% of China’s machine tool rails are still used to produce less wear-resistant cast iron far can not meet the needs of the development of the national economy, I plant for this study. More than two years of trial and production practices have shown that boron cast iron is a promising machine tool guide material.