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ER70S-G含钛焊丝钢（/%:0.07C,0.82Si,1.49Mn,0.012P,0.010S,0.19Ti,0.006 2N）生产流程为80 t顶底复吹转炉-LF-150 mm×150 mm方坯连铸-盘条轧制工艺。热力学计算和生产实践表明,当浇铸温度≥1 560℃,[N]≤78.6×10-6,[Ti/%][N/%]≤0.001 49及拉速2.02.5 m/min时,可以避免在浇铸过程TiN析出和水口结瘤。