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论述了具有中国特色的φ650～550 mm三辊开坯机的发展及现况,提出了全国100余套这类轧机的改造方向。认为采用矩形断面连铸坯和钢锭,取代传统的方形断面钢锭,同时将平平一立立共轭箱型孔改造为立立—平平孔型系统,并用计算机加以优化,可以取得改进钢锭和连铸坯内部质量、提高成坯率、降低综合能耗、减少断辊等综合经济效益,是企业增产挖潜的一个良好途径。文中例举了改造的实例,可供有关厂矿参考。
The development and current situation of the φ650 ~ 550 mm three-roller blanking machine with Chinese characteristics are discussed. The transformation direction of more than 100 sets of these rolling mills is put forward. It is considered that the use of rectangular cross-section billets and ingots instead of the traditional square cross-section steel ingots, at the same time the flattened one standing upright conjugate box-shaped hole transformed into legislation - flat hole system, and optimized by computer, you can get improved ingot and continuous casting Billet internal quality, improve the billet rate, reduce overall energy consumption and reduce the roller and other comprehensive economic benefits, is a good way for enterprises to increase production and tap the potential. The article cites examples of transformation, which can be used for reference of factories and mines.