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由于全国生产大跃进,目前很多工厂都遇到铸造生铁供应不足的问题。为了解决原料供应问题,我们利用土铁在中性炉村化铁炉中熔化已经获得成功,即使采用100%的土铁配料也可以铸出灰口铸件。铸件含硫量一般在0.15%上下,最低达到0.08%,最高为0.23%。实际上铁中的硫大部分是以硫化锰(MnS)的状态存在,对于铸铁的机械性能和切创性能没有多少妨碍。化铁炉的炉衬材料是采用焦炭粉和白泥的混合物:焦炭粉60%,白泥40%,另
Due to the great leap forward in the country, many factories now have the problem of insufficient supply of foundry pig iron. In order to solve the problem of raw material supply, we have succeeded in melting the iron in the neutral furnace village using the iron, and the gray castings can be cast even with 100% soil iron. Casting sulfur content is generally 0.15% up and down, the lowest 0.08%, the highest 0.23%. In fact, the majority of sulfur in iron is present in the form of manganese sulphide (MnS), which is not a hindrance to the mechanical properties and incision performance of cast iron. Furnace lining material is the use of coke powder and lime mixture: 60% coke powder, lime 40%, and the other