一、问题的提出大力发展连铸、提高连铸比是节能、提高成材率的有效措施,是举世公认的发展趋势。近年来中小型连铸技术日趋成熟,可铸70～190mm方坯,最佳断面为120～150mm方。这种小连铸机不仅造价低、建设快,且因产量相当,避免了“大坯轧小材”的缺点,与中小型材轧机连接特别适宜。如何将其与型钢轧机连接以取得更大的经济效益,已成为当前重大的技术课题。 First, the issue put forward to develop continuous casting, improve the ratio of continuous casting is energy saving, improve the rate of finished products is an effective measure, is universally recognized as the development trend. In recent years, small and medium-sized continuous casting technology matures, can cast 70 ~ 190mm billet, the best cross-section of 120 ~ 150mm square. This small continuous casting machine is not only low cost, fast construction, and due to considerable output, to avoid the shortcomings of the “big slab small material”, and small and medium-sized timber mill connection is particularly suitable. How to connect with the steel mill to get more economic benefits has become a major technical issue.