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国内线材轧机采用的坯料多为50～65mm方坯,少数采用90mm方坯,坯料单重小,且由钢锭经初轧开坯再经小型轧机轧制的两火成材,能源和金属消耗高。当前轧钢发展的趋势是逐步减少初轧开坯工序,直接使用连铸坯,实现一火成材,降低能耗,提高收得率。一般连铸坯断面为90～150mm方坯,120mm的方坯较多。但是,目前国内的线材轧机多数不能与之相适应。现结合我厂的情况,就我们的想法和实践谈一点意见。
Domestic wire rod mill used mostly billet 50 ~ 65mm, a small number of 90mm billet, a single billet small, and by the ingot after the initial bloom Billet and then by the small mill rolling two firewood, energy and metal consumption. The current trend of rolling development is to gradually reduce the initial bloom billet process, the direct use of billets, to achieve a fire into a timber, reduce energy consumption and increase yield. General continuous casting billet cross section of 90 ~ 150mm billet, 120mm billet more. However, at present, most wire rod rolling mills can not adapt to it. Now with my factory’s situation, to talk about our ideas and practices.