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苏联铸造生产杂志1959年2期报导了苏联斯大林农业机械厂改进冲天炉的经验。在冲天炉的炉缸增加了两个补充风口,在前炉增加了一个回气管效果很好,铁水温度由1350℃提高到1500～1520℃,熔化率从3～3.5吨/时,提高到4.5吨/时,焦炭消耗量从每吨金属炉料16％,降低到11％,并谈到废品率从3.1％降低到1,9％,同时铸件的机械性能也有所提高,铁水的化学成分也很稳定。因此从5月分开始,北京机电局就在几个工厂中进行了生产
Soviet Union Casting Magazine 2, 1959 2 reported on the experience of the Stalin Agricultural Machinery Factory in the United States to improve the cupola. The addition of two additional tuyeres in the cupola of the cupola and the addition of a gas return pipe in the forehearth worked well. The temperature of the hot metal increased from 1350 ° C to 1500-1520 ° C and the melting rate increased from 4.5 to 4.5 t / h Tonne / tonne, coke consumption is reduced from 16% per tonne of metal charge to 11%, and the reject rate is reduced from 3.1% to 1,9%. At the same time, the mechanical properties of castings are also improved. The chemical composition of hot metal is also very high stable. So from the beginning of May, Beijing Electromechanical Bureau in a few factories in the production