高品质不锈钢管坯的连铸技术优化

Optimization technology of continuous casting of stainless steel pipe billet

针对不锈钢管坯洁净度不足、穿孔裂纹、起皮、轧制表面裂纹等缺陷特征,研究和改进了不锈钢管坯连铸的相关工艺,通过采用复合脱氧、调整中间包结构、优化结晶器流场、增加末端电磁搅拌等工艺措施,提升了连铸钢水的洁净度和不锈钢管原料坯的低倍、表面质量,有效保证了高品质不锈钢管的品种开发和质量控制。

In order to improve the quality of stainless steel pipe, the continuous casting technology of stainless steel pipe billet was studied in this paper. Technological measures such as complex deoxidization, optimization of the tundish and mold flow field using the simulation software, improvement of the mold flux, installation of the S-EMS were inves- tigated. These technology measures effectively enhanced the cleanliness of the molten steel and the quality of the billet, which supported the production development and the quality control of the high quality stainless steel pipe.