RING NOZZLE OF OXYGEN LANCE (VERSIONS)

摘要

FIELD: metallurgy, blowing of oxygen into molten metal. SUBSTANCE: ring nozzle of oxygen lance includes aid supplying gas into formed ring stream to counteract creation of decreased pressure there thanks to prevention of emergence of it. Wide ring hot spot is obtained on melt which enhances efficiency of blow-through of metal. EFFECT: enhanced efficiency of blow-through of molten metal. 5 cl, 6 dwgo