随着我国国民经济的蓬勃发展,对中小型钢材的需求也与日俱增。而目前一些中小型轧钢厂由于坯料不足而未充分发挥作用。除了因钢产量不够外,往往也由于受原料规格限制不能直接使用,而需增加开坯次数,从而也增加了金属消耗和生产成本。中小型轧机理想的原料是连铸坯,但目前还难以得到边长约小于90毫米的方、扁 With the vigorous development of our national economy, the demand for small and medium sized steel products is also growing. At present, some small and medium sized rolling mills do not fully play their role due to the lack of billets. In addition to the lack of steel production, often due to raw material specifications can not be directly used, but the need to increase the number of billets, which also increased the metal consumption and production costs. The ideal raw material for small and medium-sized rolling mill is slab, but it is still difficult to get the side about less than 90 mm square, flat