LANCE NOZZLE METHOD FOR MANUFACTURING LANCE NOZZLE AND APPARATUS FOR MANUFACTURING LANCE NOZZLE

摘要

According to one embodiment of the present invention a method for manufacturing a lance nozzle comprising: a plurality of discharge pipes discharging to outlet sides gas supplied through inlet sides; and a front wall which has a plurality of discharge holes to which the outlet sides of the discharge pipes are respectively connected includes a forging step of forming a forged structure by forging the peripheries of the discharge holes on the front surface of the front wall positioned on the opposite side of the discharge pipe.