After carrying out the technological readjustment and technical improvement, the crack defect is controlled efficiently.Now the crack defect is reduced from 5.3% to 1.4%.

• 经过对板坯连铸工艺调整和技术攻关；使裂纹缺陷得到有效控制；板坯裂纹缺陷比例由5.；3%25降到1