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近几年来我国工农业战线上的广大职工,在毛主席无产阶级革命路线指引下,大搞科学实验,为充分利用我国丰富的稀土资源做出了可喜的成绩,特别是稀土球墨铸铁更是突飞猛进地发展。因而对稀土合金的生产、供应和质量也提出了愈来愈高的要求。我们根据我国资源情况和生产条件,七四年初在矿热炉上用硅石、石灰、稀土渣做原料,焦炭等做还原剂试制成功了稀土硅钙合金新品种。它具有稀土回收率高、电耗小、成本低、原材料易解决,操
Under the guidance of Chairman Mao’s proletarian revolutionary line in the past few years, the vast numbers of workers and staff members in the industrial and agricultural front of the country have made great efforts in scientific experiments and made gratifying achievements in making full use of the abundant rare earth resources in our country. In particular, rare earth ductile iron Development. Therefore, rare earth alloy production, supply and quality also put forward higher and higher requirements. According to our country’s resources and production conditions, we succeeded in trial production of new rare-earth calcium-silicon alloy varieties by using silica, lime and rare earth slag as raw materials and coke as a reducing agent in early July and early 2004. It has a high rate of rare earth recovery, low power consumption, low cost, easy to solve raw materials, operation