METHOD FOR TREATING MOLTEN STEEL AND APPARATUS THEREFOR

• Main Authors: HAN, Sang Hun, LEE, Rak Do, LEE, Sang Beom, JEONG, Eun Ju, KIM, Wan Yi, HAN, Seung Min, YOON, Sang Hyeon
• Format: Patent
• Language: English; French; Korean
• Published: 13.02.2020
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; METALLURGY; METALLURGY OF IRON; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The present invention relates to a method for processing molten steel and an apparatus therefor, the method comprising the steps of: preparing a molten steel in a container; supplying a stirring gas to the container to stir the molten steel; measuring a first vibration intensity (Bt1) generated in the container; and determining a path for supplying a stirring gas according to the measured first vibration intensity (Bt1). Therefore, the present invention can efficiently remove inclusions in molten steel to suppress the occurrence of defects such as nozzle clogging due to inclusions during casting or crack of a product. La présente invention concerne un procédé de traitement d'acier fondu et un appareil associé, le procédé comprenant les étapes de : préparation d'un acier fondu dans un récipient ; distribution d'un gaz d'agitation dans le récipient pour agiter l'acier fondu ; mesure d'une première intensité de vibration (Bt1) générée dans le récipient ; et détermination d'un trajet pour distribuer un gaz d'agitation en fonction de la première intensité de vibration mesurée (Bt1). Par conséquent, la présente invention peut éliminer efficacement des inclusions dans de l'acier fondu pour supprimer l'apparition de défauts tels qu'un bouchage de buse dû à des inclusions pendant le coulage ou la fissuration d'un produit. 본 발명은 용강 처리 방법 및 그 장치에 관한 것으로서, 용기에 용강을 마련하는 과정; 상기 용기에 교반 가스를 공급하여 용강을 교반시키는 과정; 상기 용기에서 발생하는 제1진동 세기(Bt1)를 측정하는 과정; 측정된 제1진동 세기(Bt1)에 따라 교반 가스를 공급하기 위한 경로를 결정하는 과정;을 포함하고, 용강 중 개재물을 효과적으로 제거하여 주조 중 개재물에 의한 노즐 막힘 현상이나 제품에 크랙 등과 같은 결함이 발생하는 것을 억제할 수 있다.