低碳铝镇静钢要求钢中残留一定量的酸溶铝,以改善钢板的冲压性能、防止时效。我国规定这类钢酸溶铝含量的最佳值为0.02～0.07％。本文叙述在转炉吹炼技术操作实践中,将工厂低碳铝镇静钢的酸溶铝符合规定者达到95.8％,平均铝回收率为25％的水平。对控制酸溶铝的有关因素作了技术分析。提出加铝量的计算式:Al_(T)=Al_(s)+(0.0032/％[C])×1.125+0.0006(T_终-1600)+(0.08±0.01)。并提出了改进操作的意见。 Low-carbon aluminum killed steel requires a certain amount of residual acid-soluble aluminum in steel to improve the punching performance of steel to prevent aging. Our country provides the best value of such steel acid aluminum content of 0.02 to 0.07%. This paper describes the converter blowing technology operation practice, the factory low-carbon aluminum killed steel meet the requirements of acid-soluble aluminum reached 95.8%, the average aluminum recovery rate of 25% level. On the control of acid-soluble aluminum made a technical analysis of the factors. Al (T) = Al s (+ 0.0032 /% [C]) × 1.125 + 0.0006 (T final-1600) + (0.08 ± 0.01) is proposed. And put forward the opinion of improving the operation.