wanhaorefractory

  Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. 1. For a long time to be poured, the top slag of molten steel cools and crusts, causing slagging on the ladle slag line. (1) The cold heading steel process of Shaoguan Steel Plant requires bottom blowing of argon after the calcium treatment, weak blowing for 12-20 minutes. During the weak blowing process, the edge of the slag layer on the surface of the molten steel is basically in a static state. After a long period of temperature loss, the slag temperature continues decrease, the slag layer close to the ladle wall will solidify at the position of the ladle slag line, causing slagging on the ladle wall. (2) The smelting cycle of the converter is shorter than the smelting cycle of the LF refining furnace , the pouring order is inadequate, the smelting speed of the previous...