Abstract:After optimizing the using method of mould copper-plate in casting, the surface cracks of slab caused by copper plate can be completely eliminated and the steel weight through copper plate coating can be increased from 2×104 ton to 6×104 ton. To remove big-particle inclusions in the slab, the tundish flow field design has been innovated: keep the turbulent inhibitor and without weir and dam. The trajectories and the stop times of steel in tundish have been changed. The results shows that the inclusions quantity that the dimension is greater than 10 μm has obviously decreased and the maximum dimension inclusion is under 20 μm. After above process modified, the slab quality of austenite stainless steel has been improved drastically.
马登德,丁以林,严良峰,吴国忠. 提高奥氏体不锈钢板坯质量连铸工艺实践[J]. 中国钢铁期刊网, 2017, 36(04): 17-20.
MA Deng-de,DING Yi-lin,YAN Liang-feng,WU Guo-zhong. Practice of casting process on improving austenite stainless steel slab quality. Chinese Journal of Iron and Steel, 2017, 36(04): 17-20.