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为了研究马钢转炉冶炼与电炉冶炼在非金属夹杂物控制水平方面的差异,利用ASPEX夹杂物分析仪分别对转炉钢与电炉钢轧制环件进行了夹杂物定量检测分析。结果表明:电炉钢轧制环件中单位面积内的夹杂物数量约为8.0个/mm2,而转炉钢轧制环件中单位面积内的夹杂物数量为17.6个/mm2;电炉钢中超过10μm的大尺寸夹杂物约占夹杂物总数的2.84%,而转炉钢试样中10μm以上的夹杂物约占夹杂物总数的4.85%。虽然电炉钢的洁净度优于转炉钢,但电炉钢10μm以上大尺寸夹杂物中脆性夹杂物的比例明显高于转炉钢,提高电炉钢中脆性夹杂物的控制水平仍是今后电炉钢冶炼控制的重点。
In order to study the difference between the control of non-metallic inclusions in the smelting and EAF smelting in Masteel, the quantitative analysis of inclusions in the rolling ring of BOF and EAF was carried out by ASPEX inclusion analyzer. The results show that the number of inclusions in the unit area of the electric furnace steel rolling ring is about 8.0 / mm2, while the number of inclusions per unit area in the rolling ring of the converter steel is 17.6 / mm2. When the electric furnace steel exceeds 10μm Of the large inclusions accounted for 2.84% of the total number of inclusions, while the converter steel samples inclusions of more than 10μm accounted for 4.85% of the total number of inclusions. Although the cleanliness of EAF steel is better than that of converter steel, the proportion of brittle inclusions in large size inclusions above 10μm in EAF steel is obviously higher than that of converter steel, and the control level of brittle inclusions in EAF steel is still controlled by EAF steelmaking in the future Focus.