一种高钛微合金钢冶炼过程中钛元素的添加方法

Addition method of Ti element in smelting process of high-Ti microalloyed steel

Abstract

The invention discloses an addition method of Ti element in a smelting process of high-Ti microalloyed steel. The addition method comprises the following steps: 1, according to the content of Ti element by mass percent in the high-Ti microalloyed steel, calculating the required addition of Ti element; 2, adding 90-95% of the required addition of Ti element in a form of ferrotitanium in a converter tapping process and carrying out LF refining after converter tapping; 3, after deoxygenation and slagging in an LF refining furnace, adding the rest 5-10% of Ti element in a Ti wire feeding manner and finely regulating the content of Ti element. The addition method can improve the yield of Ti element and the yield of Ti element has a relatively good stability; the quality and stability of the steel can be improved and the manufacturing cost is reduced.
本发明公开了一种高钛微合金钢冶炼过程中钛元素的添加方法,所述方法包括以下步骤:1)根据高钛微合金钢中的钛元素的质量百分比含量,计算得到所需要添加的钛元素量;2)在转炉出钢过程以钛铁的形式添加所需元素量的90~95%,转炉出钢后进行LF精炼;3)在LF精炼炉经过脱氧、造渣后,以喂入钛线的方式添加剩余的5~10%的钛元素量,进行钛元素含量的精调。本发明能提高钛元素收得率,且收得率具有良好的稳定性,提高钢的质量且稳定性好,节约制造成本。

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