低碳铝脱氧钢连铸开浇阶段钢中非金属夹杂物的变化

钢铁, 2011, 46(6): 37-44.

1.北京科技大学冶金与生态工程学院,北京100083

2.北京科技大学冶金与生态工程学院,北京100083

3.北京科技大学冶金与生态工程学院,北京100083

4.北京科技大学冶金与生态工程学院,北京100083

5.首钢京唐钢铁有限责任公司,河北唐山063200

Changes of Non-Metallic Inclusions for Low-Carbon Aluminium-Killed Steel Sheet at the Start of Continuous Casting

较系统地研究了开浇阶段钢中非金属夹杂物的变化.对板坯连铸生产SPHC钢开浇阶段钢水连续取样,并对试样全氧和氮以及非金属夹杂物进行分析.结果表明:开浇初期中间包钢水二次氧化较严重;开浇大约21min后中间包内达到较为稳定状态;钙处理可使夹杂物变性,防止水口粘结、堆积.

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