目前各地农机厂大部分应用当地生铁和焦炭生产农机球铁件,由于我国幅员广大,各地生产的生铁、焦炭成分各异,有的杂质含量太高,所以对球铁件质量影响很大.特别是有相当一部分单位,在生产球铁过程中,常常出现球化质量不稳定现象,成为球铁生产的关键问题之一. 为什么在球铁生产过程中会出现不球化或球化不良的现象呢?这可以从两方面来分析.首先是铁水成分的影响,其中尤以硫的影响最大.硫是一种表面活性元素,它的含量一高势必引起石墨向片状生长.除了硫,还有一些所谓球化干扰元素,也一样可以破坏石墨向球 At present, most of the agricultural machinery factories around the country use local pig iron and coke to produce ductile iron pieces of agricultural machines. Due to the vastness of our country, the pig iron and coke components produced by different regions have different compositions and some impurities are too high, so the quality of ductile iron pieces is greatly affected. Is a considerable part of the unit in the production process of ductile iron, the ball is often the phenomenon of instability in quality and become ductile iron production one of the key issues in the production of ductile iron or spheroidization will appear bad phenomenon This can be analyzed from two aspects: first, the influence of the hot metal composition, of which sulfur is the most influential. Sulfur is a surface-active element whose content is bound to cause graphite to flake growth. In addition to sulfur, There are some so-called spheroidizing interference elements that can also destroy graphite to the ball