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采用传统的RH装置精炼碳含量小于20ppm超低碳钢(ULC),将钢水碳含量降到要求的水平所花费的时间长,因此需要提高转炉出钢温度,以补偿在RH装置中钢水的温降从而导致转炉耐火材料腐蚀增加和成本提高。为了改善ULC钢的精炼工艺,日本川崎钢铁公司千叶广为其RH脱气装置安装了顶吹设备(KTB) RH-KTB装置,在RH-KTB
Using traditional RH units to refine ultra-low carbon steel (ULC) with carbon content less than 20 ppm takes a long time to reduce the carbon content of the molten steel to the required level. Therefore, it is necessary to increase the tapping temperature of the converter to compensate for the molten steel in the RH unit Temperature drop leads to increased corrosion of converter refractory material and increased cost. In order to improve the refining process of ULC steel, Kawasaki Steel Co., Ltd., Chiba, Japan installed a top-blowing equipment (KTB) RH-KTB unit for its RH degassing unit. In RH-KTB