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发明授权
CN106282490B 一种RH深脱碳及洁净钢冶炼方法 有权

一种RH深脱碳及洁净钢冶炼方法
摘要：
本发明公开一种RH深脱碳及洁净钢冶炼方法，精炼5min内吹氧结束；当钢水碳含量达到0.0030％以下时，对提升气体中的水分含量进行检测并对提升气体进行加湿处理，使提升气体中的水分含量在10％‑50％，钢水氢含量在0.0005％‑0.0025％，此后钢水循环15min‑30min，当钢水碳含量达到0.0010％以下时，停止对提升气体的加湿处理，加入脱氧剂对钢水进行脱氧，钢液再循环10min‑30min，测温、定氧、定氢、出钢。
摘要（英）：

The invention discloses a RH deep decarbonization and clean steel smelting method. The RH deep decarbonization and clean steel smelting method comprises following steps: oxygen blowing is finished in 5min of refining; when molten steel carbon content is 0.0030% or lower, water content of a lifting gas is detected, and the lifting gas is subjected to humidification treatment so as to control the water content of the lifting gas to be 10 to 50%, and hydrogen content of molten steel to be 0.0005 to 0.0025%, and then molten steel is subjected to circulation for 15 to 30min; when molten steel carbon content is 0.0010% or lower, humidification treatment of the lifting gas is stopped, a deoxidizing agent is added for deoxidizing of molten steel, and molten steel is subjected to circulation for another 10 to 30min; temperature measuring is carried out; oxygen determination is carried out; hydrogen determination is carried out; and steel tapping is carried out.

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