本文着重研究缓慢冷却条件下硼铸铁硬化相特征及硼对石墨和基体组织的影响;通过系统试验,论证硼铸铁耐磨性、机械性能、铸造性能;探讨硼铸铁的尺寸稳定性和时效工艺;介绍硼砂熔液加硼法。证明硼铸铁获得适当组织的生成条件宽,可以扩大使用,机床导轨采用硼铸铁,具有优异的耐磨性,其尺寸稳定性也明显提高。 This article focuses on the characteristics of boron cast iron hardened phase with slow cooling and the effect of boron on graphite and matrix structure. Through systematic experiments, the wear resistance, mechanical properties and castability of boron cast iron are demonstrated. The dimensional stability and aging process of boron cast iron are discussed. Borax solution introduced boron method. Boron cast iron to prove that the appropriate conditions for the formation of a wide organization, you can expand the use of boron cast iron rail, with excellent wear resistance, its dimensional stability has also significantly improved.