在炼钢时氧含量是最重要的变数之一。要使钢得到预定的化学成分和凝固组织,就需要严密控制钢液内的氧含量。例如,炼制细晶粒铝镇静钢时,就铝用量来说必须避免过份的铝耗量。沸腾钢和机械封顶钢,必须是合适的碳氧平衡。在良好的沸腾区和压盖 Oxygen content is one of the most important variables in steelmaking. For the steel to get a predetermined chemical composition and solidification structure, it is necessary to strictly control the oxygen content in the molten steel. For example, when refining fine-grained aluminum-killed steel, excessive amounts of aluminum must be avoided in terms of the amount of aluminum used. Boiling steel and mechanical capping steel must be properly carbon-oxygen balanced. In good boiling area and gland