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发明公开
CN104818361A 一种钢铁冶炼过程中钛铁的加入方法 无效 - 驳回

一种钢铁冶炼过程中钛铁的加入方法
摘要：
一种钢铁冶炼过程中钛铁的加入方法，所述的钢铁冶炼过程包括转炉冶炼、精炼、真空处理，本方法关键在于控制精炼后钢液中氧含量在0～20ppm之间，铝重量百分含量在0.015%～0.050%之间；真空处理前喂入铝线至钢液中铝重量百分含量为Al=0.050～0.080%，再加入钛铁，并保证喂入铝线与加入钛铁的时间间隔为2～8分钟，然后进行真空处理，处理过程大吹氩搅拌。采用本发明方法后，冶炼后钛的收得率达到75%以上，钢水中钛的分布均匀，提高了钢板性能的均匀性和稳定性。
摘要（英）：

The invention discloses a method for adding ferrotitanium in a steelmaking process. The steelmaking process comprises converter smelting, refining and vacuum treatment. The method disclosed by the invention is characterized in that the oxygen content of molten steel after refining is controlled to be between 0 and 20ppm, the Al content (wt%) is controlled to be between 0.015% and 0.050%; before vacuum treatment, aluminum wires are fed until the Al content in the molten steel is 0.050-0.080wt%, and then ferrotitanium is added and the time interval between the aluminum wire feeding and ferrotitanium adding must be 2-8min, and then vacuum treatment can be carried out; in the treatment process, fierce-argon-blowing stirring is performed. With adoption of the method disclosed by the invention, after smelting, the titanium yield is 75% or above; titanium distribution in molten steel is uniform, and therefore the performance uniformity and stability of a steel plate are improved.

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