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在抚顺新钢铁公司转炉进行了底吹气体对螺纹钢性能影响的工业试验,同时也对比研究了底吹全程吹氮气、底吹氮、氩气切换和单纯顶吹3种工艺条件下螺纹钢的性能。结果表明,3种工艺条件下轧材的化学成分、综合性能、屈服强度、抗拉强度和断后伸长率等性能指标相当,钢中夹杂物的总量和金相组织级别相当。采用转炉全程底吹吹氮工艺冶炼得到的成品螺纹钢在成分及性能上符合国家标准的要求。
In the Fushun New Steel Company converter furnace bottom gas blowing on the performance of the rebar industry experiments, but also compared the bottom blowing blowing nitrogen, bottom blowing nitrogen, argon switching and simple top-blowing three kinds of conditions under the conditions of rebar performance. The results show that the chemical composition, overall performance, yield strength, tensile strength and elongation at break of the three kinds of process conditions are equivalent. The total content of inclusions in steel and the metallurgical grade are similar. The use of converter blowing nitrogen blowing process at the end of finished steel obtained in the composition and performance of the national standard requirements.