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提高钢水的纯净度是消除连铸坯内裂纹的重要措施·如某特钢厂引进的连铸机长期受到连铸坯低倍的内裂纹困扰·该厂发现成品钢坯中的S含量多为0.026%~0.033%.通过调整工艺,充分发挥LF炉的脱硫功能,将S含量控制在0.012%以下,从而消除了内裂纹·由此可以推出,当钢的纯净度提高到一?
Increasing the purity of the molten steel is an important measure to eliminate cracks in the slab. For example, the continuous caster introduced by a special steel plant has long been plagued by low internal cracks in the slab. The plant found that the S content in the finished billet was mostly 0.026 % ~ 0.033%. By adjusting the process, give full play to the desulfurization function of the LF furnace, the S content is controlled below 0.012%, thus eliminating the internal cracks, which can be introduced, when the steel purity increased to one?