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日本川崎钢铁公司水岛厂通过增大连铸异形坯的断面尺寸,实现用一种连铸异形坯生产H300×300～H900×300的H型钢。该厂原来用连铸异形坯生产H型钢的最大规格为H800×300mm。大于此规格的H型钢,需用连铸板坯作为原料,经两火轧制而得到成品。最近,该厂增大了连铸异形坯的断面尺寸,即异形坯的腹板高度增大100mm,腹板厚度增大20mm,连铸异形坯尺寸为560×400×140×75mm。使用这种大断面连铸异
Japan’s Kawasaki Iron & Steel Co., Ltd. Mizushima plant by increasing the cross-sectional size of continuous casting blank, with a continuous casting blank to achieve the production of H300 × 300 ~ H900 × 300 H-beam. The original factory with a continuous casting blank H beam production specifications for the largest H800 × 300mm. H-beam larger than this size, the need to use continuous casting slab as raw material, the two fire rolling finished. Recently, the plant increased the cross-sectional size of the continuous casting billet, that is shaped billet web height increased by 100mm, web thickness increased by 20mm, continuous casting billet size 560 × 400 × 140 × 75mm. Use this large section continuous casting different