一、前言蠕墨铸铁良好的综合性能已越来越引起了人们的重视,然而狭窄的蠕化范围又给生产上带来了一定的困难。因此,如何解决在冲天炉熔化的条件下稳定生产蠕墨铸铁的问题是关系到这种材料能否在国内普遍推广应用的关键。目前,国内已在这方面进行了大量的研究工作,并取得了较大的进展。但是,冲天炉铁 I. INTRODUCTION The good comprehensive performance of vermicular cast iron has drawn more and more attention. However, the narrow range of vermiculite brings some difficulties in production. Therefore, how to solve the problem of stable production of compacted graphite iron under cupola melting conditions is the key to whether this material can be widely popularized and applied in China. At present, a great deal of research work has been carried out in this area in China, and great progress has been made. However, cupola iron