抑制回硅是低硅品种钢冶炼的重点和难点,南钢中厚板卷厂通过转炉出钢弱脱氧操作,精炼炉弱脱氧升温,脱氧、脱硫造渣,连铸严格的保护浇注及吹氩塞棒、吹氩浸入式上水口的应用等一系列工艺优化和操作的改进,使整个冶炼过程钢水回硅量稳定控制在200×10-6以内,钢水终点成分完全满足低硅钢要求。 Inhibition of back to silicon is a low-silicon varieties of steel smelting focus and difficulty, Nangang plate coil mill through the converter weak deoxidation operation, refining furnace weak deoxygenation heating, deoxidation, desulfurization slag, continuous casting strict protection pouring and argon A series of process optimization and operation improvement, so that the amount of silicon in the whole smelting process can be controlled within 200 × 10-6, and the finish of the molten steel can fully meet the requirements of low-silicon steel.