稀土-镁球墨铸铁的应用,代替了大量贵重的钢材,是一种成本低、用途广的好材料。近年来随着我国工农业生产的迅速发展,球墨铸铁的生产使用也日益广泛起来。因此,对其化学成分测定工作“快、准、省”的要求也就更加迫切。遵照毛主席“教育必须为无产阶级政治服务,必须同生产劳动相结合”的教导,我们本着以典型任务组织教学、使“分析化学”更好地为三大斗争服务的精神,到生产和使用球墨铸铁的安阳柴油机厂进行开门办学。直接参加生产实践,拜工人为师,急生产之所急,走“实践—理论—实践”的认识道路。我们参考了现有的方 Rare earth - magnesium ductile iron application, instead of a large number of expensive steel, is a low cost, wide use of good materials. In recent years, with the rapid development of industrial and agricultural production in our country, the production and use of ductile iron has also become increasingly widespread. Therefore, the determination of its chemical composition of “fast, accurate, provincial” requirement is even more urgent. In accordance with Chairman Mao’s teachings that education must serve proletarian politics and must be combined with productive labor, we should organize teaching in typical tasks so that “analytical chemistry” can better serve the three major struggles, Use ductile iron Anyang Diesel Engine Factory to open the door to run school. Directly participate in production practice, worship workers as a teacher, urgent production, take the “practice - theory - practice” understanding of the road. We refer to the existing parties