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To reduce the slag sticking onto the snorkel of the ladle during the ladle alloying treatment station (LATS) process, CaO-CaF_2 (the mass ratio of CaO/CaF_2 is 1:1) was employed as the modifier of the LATS refining ladle slag. The effect of CaO-CaF_2 on the melting point, viscosity, and desulfurizing capability of the ladle slag was investigated. The melting point of the unmodified ladle slag is 1439°C. When adding 20wt% CaO-CaF_2, the melting point is decreased to 1327°C. At 1500°C, the viscosity of the unmodified ladle slag is 6.5 Pa·s, which can be decreased lower than 2 Pa·s by adding more than 10wt% CaO-CaF_2. The experimental results of desulfurization of the melts show that the desulfurizing power of the ladle slag can be enhanced by adding CaO-CaF_2.
To reduce the slag sticking onto the snorkel of the ladle during the ladle alloying treatment station (LATS) process, CaO-CaF_2 (the mass ratio of CaO / CaF 2 is 1: 1) was employed as the modifier of the LATS refining ladle slag. The effect of CaO-CaF 2 on the melting point, viscosity, and desulfurizing capability of the ladle slag was investigated. The melting point of the unmodified ladle slag is 1439 ° C. When adding 20 wt% CaO-CaF 2, the melting point is decreased to 1327 ° C. At 1500 ° C, the viscosity of the unmodified ladle slag is 6.5 Pa · s, which can be decreased lower than 2 Pa · s by adding more than 10wt% CaO-CaF_2. The experimental results of desulfurization of the melts show that the desulfurizing power of the ladle slag can be enhanced by adding CaO-CaF_2.