Method of determining grade for continuous casting slab

• Main Authors: JANG PILL YONG, JEONG YEONG CHAN
• Format: Patent
• Language: English; Korean
• Published: 02.06.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention provides a method for determining the grade of continuous casting slab by temperature prediction. According to an embodiment of the present invention, the method for determining the grade of continuous casting slab by temperature prediction includes the steps of: cooling a setting target continuous casting slab; measuring the temperature of the continuous casting slab to be set multiple times with respect to the cooling time of the setting target continuous casting slab; establishing a correlation between the cooling time of the continuous casting slab to be set and the temperature drop of the continuous casting slab to be set; measuring the cooling time of a determination target continuous casting slab; and predicting the temperature drop of the determination target continuous casting slab using the correlation. According to the present invention, the temperature drop of a determination target continuous casting slab can be easily predicted by measuring the storage time or cooling time without directly measuring the temperature of the determination target continuous casting slab, and the grade of the determination target continuous casting slab according to the temperature drop. 본 발명은, 온도 예측을 통한 연주 슬라브 등급 판정방법을 제공한다. 본 발명의 일 실시예에 의하면, 상기 온도 예측을 통한 연주 슬라브 등급 판정방법은, 설정대상 연주 슬라브를 냉각하는 단계; 상기 설정대상 연주 슬라브의 온도를 상기 설정대상 연주 슬라브의 냉각시간에 대하여 복수회 측정하는 단계; 상기 설정대상 연주 슬라브의 상기 냉각시간과 상기 설정대상 연주 슬라브의 온도 강하량의 상관관계를 수립하는 단계; 판정대상 연주 슬라브의 냉각시간을 측정하는 단계; 및 상기 상관관계를 이용하여 상기 판정대상 연주 슬라브의 온도 강하량을 예측하는 단계;를 포함한다.