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Anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick and preparation process thereof
The invention relates to the field of refractory materials for steelmaking, in particular to an anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick and a preparation process thereof. The preparation process of an anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick comprises the following steps: 1) accurately weighing the following components in percentage by weight: 20-35% of high-purity sintered magnesia, 45-65% of fused magnesia, 10-14% of crystalline flake graphite, 0.5-1.5% of resin powder, 0.5-1.5% of antioxidant and 3-4% of binding agent; 2) stirring and mixing; 3) molding by a mold; 4) drying. According to the electric furnace steel ladle wall magnesia carbon brick capable of preventing longitudinal cracking obtained through the preparation process, the thermal expansion coefficient of the magnesia carbon brick is reduced, the thermal shock stability and the oxidation resistance of the material are improved, and thenlongitudinal cracking can be prevented.
本发明涉及炼钢用耐火材料领域，尤其涉及一种防纵裂的电炉钢包包壁镁碳砖及其制备工艺。一种防纵裂的电炉钢包包壁镁碳砖的制备工艺，包括步骤：1)按比例准确称取各组分：20～35％的高纯烧结镁砂、45～65％的电熔镁砂、10～14％的鳞片石墨，0.5～1.5％的树脂粉，0.5～1.5％的抗氧化剂，3～4％的结合剂；2)搅拌混合；3)模具成型；4)干燥。采用本发明的制备工艺得到的防纵裂的电炉钢包包壁镁碳砖减小镁碳砖的热膨胀率，提高材料的热震稳定性和抗氧化性能，进而能够防止纵裂的产生。
Anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick and preparation process thereof
The invention relates to the field of refractory materials for steelmaking, in particular to an anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick and a preparation process thereof. The preparation process of an anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick comprises the following steps: 1) accurately weighing the following components in percentage by weight: 20-35% of high-purity sintered magnesia, 45-65% of fused magnesia, 10-14% of crystalline flake graphite, 0.5-1.5% of resin powder, 0.5-1.5% of antioxidant and 3-4% of binding agent; 2) stirring and mixing; 3) molding by a mold; 4) drying. According to the electric furnace steel ladle wall magnesia carbon brick capable of preventing longitudinal cracking obtained through the preparation process, the thermal expansion coefficient of the magnesia carbon brick is reduced, the thermal shock stability and the oxidation resistance of the material are improved, and thenlongitudinal cracking can be prevented.
本发明涉及炼钢用耐火材料领域，尤其涉及一种防纵裂的电炉钢包包壁镁碳砖及其制备工艺。一种防纵裂的电炉钢包包壁镁碳砖的制备工艺，包括步骤：1)按比例准确称取各组分：20～35％的高纯烧结镁砂、45～65％的电熔镁砂、10～14％的鳞片石墨，0.5～1.5％的树脂粉，0.5～1.5％的抗氧化剂，3～4％的结合剂；2)搅拌混合；3)模具成型；4)干燥。采用本发明的制备工艺得到的防纵裂的电炉钢包包壁镁碳砖减小镁碳砖的热膨胀率，提高材料的热震稳定性和抗氧化性能，进而能够防止纵裂的产生。
Anti-longitudinal-cracking electric furnace steel ladle wall magnesia carbon brick and preparation process thereof
一种防纵裂的电炉钢包包壁镁碳砖及其制备工艺
CAI CHANGXIU (author) / LEI ZHONGXING (author) / ZHOU HUI (author) / XU ZHIHUA (author)
2021-02-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
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