日本的汽车、家屯、建筑、造船等产业,都要求稳定供给具有良好加工性能的高质量板材。为了满足这种要求,日本的钢铁公司作了很大的努力,开发、引进了多种用于板坯连铸设备的电磁装置。过去,为了净化板坯表层,主要采取了以下措施:(1)防止钢水污染;(2)利用水口控制结晶器内钢水流动。对纵向裂纹采取的措施是:从凝固壳外侧控制粉末特性。 Japan’s automobile, home improvement, construction, shipbuilding and other industries, require stable supply of high-quality sheet with good processing performance. In order to meet this demand, Japanese steel companies have made great efforts to develop and introduce a variety of electromagnetic devices for slab continuous casting equipment. In the past, in order to purify the slab surface, the following measures were taken: (1) to prevent molten steel pollution; (2) to use the nozzle to control the flow of molten steel in the mold. The measure taken for longitudinal cracks is to control the powder properties from the outside of the solidification shell.