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目前,以煤为能源的高炉—转炉—连铸的传统产钢工艺仍占据着重要的地位。高炉的年产量一般为100～200万吨铁。但是,并不是所有炼钢厂都需要这么多的铁水,例如小型-微型钢厂,特别是特殊钢厂。因此对于开发经济的、规模较小的新炼铁法就十分感兴趣了。它要求能耗低、高效能、不污染环境和可以灵活地应用各种能源。一些公司,例如瑞典轴承钢公司(SKF)自1972年起即执行了开发这种新冶金方法的长期计划,该计划倾向采用等离子体作为新炼铁法的能源。
At present, the traditional steelmaking process using blast furnace-converter-continuous casting of coal still occupies an important position. The annual output of blast furnace is generally 100 ~ 2 million tons of iron. However, not all steel mills need so much hot metal, such as small-micro mills, especially special mills. So very interested in the development of the economy, the smaller the new ironmaking law is very interested. It requires low energy consumption, high efficiency, does not pollute the environment and can flexibly use a variety of energy sources. Some companies, such as SKF, have implemented a long-term plan to develop such a new metallurgical method since 1972, which favors the use of plasma as an energy source for the new ironmaking law.