一、绪言要提高轧材的收得率和节约能源,简化工艺过程是最有效的办法。随着连铸技术的发展,连铸和轧制的直接连接问题已被大家所重视,特别是轧制厚、薄两种钢板用的连铸板坯,已广泛实现不经过加热炉的热装和直接轧制。但在特殊钢和高级钢的领域内,由于产品尺寸小,至今还沿用连铸大方坯、经过开坯至精制的钢材生产工序。这是因为小断面铸坯存在着生产率低和对品种、尺寸变化适应性差的问题,同时也存在产品质量较差的问题。随着对节能问题的更加重视,大家都希望有一种能省掉精轧加热的小型坯制造工艺,和掌握在保 First, the introduction To improve the yield of rolled materials and save energy, simplify the process is the most effective way. With the development of continuous casting technology, the direct connection between continuous casting and rolling has been taken seriously by everyone, especially the continuous casting slab used for rolling thick and thin steel plates has been widely realized without hot charging And direct rolling. However, in the fields of special steel and high-grade steel, as the product size is small, continuous casting of conventional steel billets has been adopted till the steel production process after billet refining. This is because the small section slab has the problems of low productivity and poor adaptability to variety and size change, and also has the problem of poor product quality. With the more emphasis on energy saving, we all hope that there is a small blank can be saved from finishing rolling manufacturing process, and grasp the insurance