公开(公告)号：US4529442A

公开(公告)日：1985-07-16

申请号：US604097

申请日：1984-04-26

申请人： Joseph W. Tommaney ,  David R. Shidemantle ,  Harry L. Bishop, Jr.

发明人： Joseph W. Tommaney ,  David R. Shidemantle ,  Harry L. Bishop, Jr.

IPC分类号： C21C7/10 ,  C21C5/28 ,  C21C5/32 ,  C21C5/34 ,  C21C5/35 ,  C21C7/068 ,  C21C7/072 ,  C21C7/00

CPC分类号： C21C5/35

摘要： A method for producing steel in a top-blown molten metal vessel having a hot metal charge to form a bath. The method comprises top blowing from a lance oxygen gas onto or beneath the surface of the bath while introducing an inert gas to the bath from beneath the surface thereof during said top blowing. The rate of inert gas is increased progressively during top blowing of oxygen and the rate of oxygen is decreased progressively during said top blowing.

摘要翻译： 一种用于在具有热金属电荷的顶吹熔融金属容器中生产钢的方法以形成浴。 该方法包括将喷枪氧气顶吹到浴的表面上或下面，同时在所述顶吹期间从其表面下方向浴中引入惰性气体。 在顶吹吹氧期间，惰性气体的比例逐渐增加，并且在上吹期间氧气的比例逐渐降低。