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提高初轧机的开坯能力,对当前钢铁企业炼钢、铸锭、开坯与成材能力的综合平衡是一项技术关键。本文根据国外采用切分轧制新工艺,提高初轧机开坯能力,推动轧制技术进步的情况,论证了切分轧制新工艺的可行性。介绍了轧辊孔型设计、轧制制度、切分方法和轧机负荷等情况,同时分析介绍了切分轧制轧件的几何精度、力学性能、金相组织、低倍检验和表面质量,以及切分轧制工艺在不同的初轧机、不同的钢种和不同的钢坯上采用的灵活性。
Improve the capacity of the initial rolling mill billet, the current iron and steel enterprises steelmaking, ingot, billet and the ability to become a comprehensive and balanced capacity is a key technology. In this paper, according to the foreign use of cutting new technology, improve the capacity of the initial rolling mill billet, promote the progress of rolling technology, demonstrate the feasibility of cutting new technology. Introduced the roll pass design, rolling system, cutting method and rolling mill load, etc., At the same time introduced and analyzed the geometric accuracy, mechanics property, the microstructure, the low magnification inspection and the surface quality of the split rolling, The flexibility of the sub-rolling process in different initial mill, different steel grades and different billet.