A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HIGH BASICITY MOLD FLUX FOR MEDIUM CARBON STEEL
According to one embodiment of the present invention, a mold flux may be a mold flux that contains, in wt%, 40.0 to 55.0% of CaO, 20.0 to 35.0% of SiO_2, 8.0 to 12.0% of F, 4.0 to 8.0% of Na_2O, 1.0 to 2.0% of Al_2O_3, 2.0% or less of MgO, and 4.0 to 8.0% of C, and further includes B_2O_3 and Li_2O and includes the remaining inevitable impurities, wherein a value expressed by the following formula (1) is 0.25 to 3.00. The formula (1) is B_2O_3/Li_2O (in the formula (1) above, B_2O_3 and Li_2O represent wt% of each oxide). A purpose is to provide the high basicity mold flux for medium carbon steel that not only obtains a high crystallinity to suppress heat transfer within the mold, but also secures lubrication for uniform heat transfer within the mold and has a low rate of crack occurrence in a cast slab.
본 발명의 일 실시예에 따른 몰드 플럭스는, 중량%로, CaO: 40.0 ~ 55.0%, SiO2: 20.0 ~ 35.0%, F: 8.0 ~ 12.0%, Na2O: 4.0 ~ 8.0%, Al2O3: 1.0 ~ 2.0%, MgO: 2.0%이하 및 C: 4.0 ~ 8.0%를 포함하고, B2O3 및 Li2O를 더 포함하고 나머지 불가피한 불순물을 포함하면서, 아래 식(1)로 표현되는 값이 0.25 ~ 3.00인, 몰드 플럭스 일 수 있다. 식(1): B2O3 / Li2O (상기 식 (1)에서, B2O3, Li2O는 각 산화물의 중량%를 의미한다). 몰드 내 열전달을 억제하기 위한 고염기도의 높은 결정률을 얻을 뿐만 아니라, 몰드 내 균일한 열전달을 위해 윤활능을 확보하여 주편 크랙 발생률이 적은 중탄소강용 고염기도 몰드 플럭스를 제공하는 것을 목적으로 한다.
HIGH BASICITY MOLD FLUX FOR MEDIUM CARBON STEEL
According to one embodiment of the present invention, a mold flux may be a mold flux that contains, in wt%, 40.0 to 55.0% of CaO, 20.0 to 35.0% of SiO_2, 8.0 to 12.0% of F, 4.0 to 8.0% of Na_2O, 1.0 to 2.0% of Al_2O_3, 2.0% or less of MgO, and 4.0 to 8.0% of C, and further includes B_2O_3 and Li_2O and includes the remaining inevitable impurities, wherein a value expressed by the following formula (1) is 0.25 to 3.00. The formula (1) is B_2O_3/Li_2O (in the formula (1) above, B_2O_3 and Li_2O represent wt% of each oxide). A purpose is to provide the high basicity mold flux for medium carbon steel that not only obtains a high crystallinity to suppress heat transfer within the mold, but also secures lubrication for uniform heat transfer within the mold and has a low rate of crack occurrence in a cast slab.
본 발명의 일 실시예에 따른 몰드 플럭스는, 중량%로, CaO: 40.0 ~ 55.0%, SiO2: 20.0 ~ 35.0%, F: 8.0 ~ 12.0%, Na2O: 4.0 ~ 8.0%, Al2O3: 1.0 ~ 2.0%, MgO: 2.0%이하 및 C: 4.0 ~ 8.0%를 포함하고, B2O3 및 Li2O를 더 포함하고 나머지 불가피한 불순물을 포함하면서, 아래 식(1)로 표현되는 값이 0.25 ~ 3.00인, 몰드 플럭스 일 수 있다. 식(1): B2O3 / Li2O (상기 식 (1)에서, B2O3, Li2O는 각 산화물의 중량%를 의미한다). 몰드 내 열전달을 억제하기 위한 고염기도의 높은 결정률을 얻을 뿐만 아니라, 몰드 내 균일한 열전달을 위해 윤활능을 확보하여 주편 크랙 발생률이 적은 중탄소강용 고염기도 몰드 플럭스를 제공하는 것을 목적으로 한다.
HIGH BASICITY MOLD FLUX FOR MEDIUM CARBON STEEL
중탄소강용 고염기도 몰드 플럭스
PARK JUNYONG (author) / CHUNG TAE IN (author)
2024-01-16
Patent
Electronic Resource
Korean
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