这个阶段的产品是横断面较小的半成品，如板坯、大钢坯、小方坯等。这些半成品适合于进一步轧制。
In this stage semifinished products with smaller cross sections are produced, such as slab, bloom or billet, which are suitable for further rolling.
在工业生产条件下，通过添加不同的稀土元素和合金元素进行正交试验及板坯轧制对比试验。
In the condition of industrial production, orthogonal test and slab rolling comparison test were had by adding different rare earth element and alloying element.
连续铸造中板坯宽度和轧制过程中带钢宽度及平坦度的在线测量非常重要。
ON-line measurements of slab width during continuous casting and strip width as well as flatness during rolling are important.
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