为了适应化工生产的需要,一年多来,我厂试验并运用了Al－Si球铁(4~5%Si)。我们原先采用本溪生铁、湖南生铁,因为Mn、P较低,杂质较少,生产较稳定。但是外省生铁货源不足,怎么办?为了响应毛主席“备战、备荒、为人民”的伟大号召,立足本省货源,经过反复实践证明了部分三钢生铁不仅可以制出符合要求的球铁,而且能够制出Al－Si耐碱球铁。 In order to meet the needs of chemical production, over the past year, I tested and used Al-Si ductile iron (4 ~ 5% Si). We originally used Benxi pig iron, Hunan pig iron, because Mn, P lower, fewer impurities, the production of more stable. In response to the great call of Chairman Mao for “preparing for war, preparing for waste and for the people”, based on the sources of our province, after repeated practice, we have proved that some of the three steel pig irons can not only produce ductile iron that meets the requirements, but also can Produced Al-Si alkali-resistant ductile iron.