在毛主席革命路线指引下,我国球铁的生产得到了迅速的发展:产量激增,产品扩大,质量提高,已越来越广泛地应用于机械制造、化工、矿山、冶金等各个工业部门,以制造高强度、耐磨、耐热、耐蚀等重要零件,代替了大量优质钢材和有色金属,使产品成本大大降低,有力地支援了工农业生产。过去,我省生产球铁都是采用低硫、磷的本溪生铁。随着国民经济的飞跃发展,本溪生铁的供应远远不能满足需要,这是当前球铁推广应用中一个比较突出的矛盾。七六 Under the guidance of Chairman Mao’s revolutionary route, the production of ductile iron in China has developed rapidly: the surge in output, product expansion, and quality improvement have become more and more widely used in various industrial sectors such as machinery manufacturing, chemical engineering, mining, and metallurgy. The production of high-strength, wear-resistant, heat-resistant, corrosion-resistant and other important parts replaced a large number of high-quality steels and non-ferrous metals, greatly reducing the cost of products, and effectively supporting industrial and agricultural production. In the past, Benxi pig iron with low sulfur and phosphorus was used to produce ductile iron in our province. With the rapid development of the national economy, the supply of pig iron in Benxi is far from meeting the needs. This is a prominent contradiction in the promotion and application of ductile iron. Seven Six