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美国钢厂选用连铸机/直接轧制设备近年来,从粗钢到轧钢的生产作业线上涌现出大量的新工艺。板坯、大方坯和小方坯的连铸也有显著改进。作为热轧带钢生产原料的板坯,一般浇铸成宽800～2200mm,厚150～350mm。这类板坯在热带钢轧机上轧成1.5～25mm厚的带钢。但是,为了满足当前对热轧带钢的显微结构和尺寸公差要求,必须为轧机提供40～60mm厚度的坯料。
US mills choose continuous casting machine / direct rolling equipment In recent years, from crude steel to rolling production line emerged a large number of new technology. Slab, bloom and billet continuous casting has also been significantly improved. The slab, which is a raw material for hot strip production, is generally cast into a width of 800 to 2,200 mm and a thickness of 150 to 350 mm. These slabs are rolled into 1.5 to 25 mm thick strip on a hot strip mill. However, in order to meet the current microstructure and dimensional tolerance requirements for hot-rolled strip, it is necessary to provide a blank having a thickness of 40 to 60 mm for the rolling mill.