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摘自《I & SM》,1991,vol.18,NO.9,41—44 与普通低碳铝镇静钢相比,超低碳钢更容易形成裂纹等缺陷。同时,由于碳含量很低,而易从结晶器保护渣中吸收碳,但因碳是保护渣的主要成分,如果碳含量不足会给保护渣熔化速度的控制造成困难,并导致绝热性变差而引起操作和质量上的问题。超低碳钢在连铸时增碳是因钢水直接同未熔化保护渣接触时,钢水的湍流和波动引起吸碳。
From “I & SM”, 1991, vol.18, NO.9,41-44 Compared with the ordinary low-carbon aluminum killed steel, ultra-low carbon steel is more likely to crack and other defects. In the meantime, since the carbon content is low and carbon is easily absorbed from the mold flux, since carbon is the main component of the flux, insufficient carbon content may cause difficulty in controlling the melting rate of the flux and lead to deterioration in heat insulation And cause the operation and quality problem. Ultra-low carbon steel in the continuous casting of carbon by the molten steel is not directly contact with the molten slag, the molten steel turbulence and fluctuations caused by carbon absorption.