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Multi-phase ceramic side sealing plate for twin-roll thin-strip continuous casting and preparation method of multi-phase ceramic side sealing plate
The invention belongs to the technical field of high-temperature structural ceramics, and particularly relates to a multiphase ceramic side sealing plate for twin-roll thin-strip continuous casting and a preparation method of the multiphase ceramic side sealing plate. The invention discloses a multiphase ceramic side sealing plate for twin-roll thin-strip continuous casting. The multiphase ceramic side sealing plate is characterized by being prepared from the following raw materials in percentage by weight: 50-60% of boron nitride, 30-35% of aluminum oxide, 3-5% of calcium carbonate and 5-10% of boron carbide, wherein boron nitride has two sizes, the large particle size d50 is greater than 10 [mu] m, the addition amount is 40-50%, the small particle size BN scale d50 is greater than 1 [mu] m, and the addition amount is 10-15%; the aluminum oxide is nano aluminum oxide, and d50 is less than 1 [mu] m; the d50 of the nano calcium carbonate is less than 1 [mu] m, and the boron carbide is 1000 meshes. The side sealing plate has the advantages of being low in firing temperature, excellent in high-temperature mechanical property and good in oxidation resistance, particularly can solve the problem that the side sealing plate is poor in initial blank shell oxidation wear resistance, and meanwhile meets the service requirements of thin-strip continuous casting on molten steel erosion resistance, molten steel thermal shock resistance, self-lubrication and the like of the side sealing plate.
本发明属于高温结构陶瓷技术领域，具体涉及一种双辊薄带连铸用复相陶瓷侧封板及制备方法。一种双辊薄带连铸用复相陶瓷侧封板，其特征在于：复相陶瓷侧板封板的制备原料及重量百分比为：氮化硼50～60%，氧化铝30～35%，碳酸钙3～5%，碳化硼5～10%；其中氮化硼的尺寸为两种，其中大粒径d50＞10μm，加入量40%～50%，小粒径BN鳞片d50＞1μm，加入量10%～15%；所述的氧化铝为纳米氧化铝，d50＜1μm；纳米碳酸钙，d50＜1μm，碳化硼为1000目。本发明使其具有烧成温度低、高温力学性能优、抗氧化性能好的特点，特别是能够解决困扰侧封板抗初生坯壳氧化磨损性能不足的问题，同时满足薄带连铸对侧封板抗钢液侵蚀、抗钢液热冲击、自润滑等服役要求。
Multi-phase ceramic side sealing plate for twin-roll thin-strip continuous casting and preparation method of multi-phase ceramic side sealing plate
The invention belongs to the technical field of high-temperature structural ceramics, and particularly relates to a multiphase ceramic side sealing plate for twin-roll thin-strip continuous casting and a preparation method of the multiphase ceramic side sealing plate. The invention discloses a multiphase ceramic side sealing plate for twin-roll thin-strip continuous casting. The multiphase ceramic side sealing plate is characterized by being prepared from the following raw materials in percentage by weight: 50-60% of boron nitride, 30-35% of aluminum oxide, 3-5% of calcium carbonate and 5-10% of boron carbide, wherein boron nitride has two sizes, the large particle size d50 is greater than 10 [mu] m, the addition amount is 40-50%, the small particle size BN scale d50 is greater than 1 [mu] m, and the addition amount is 10-15%; the aluminum oxide is nano aluminum oxide, and d50 is less than 1 [mu] m; the d50 of the nano calcium carbonate is less than 1 [mu] m, and the boron carbide is 1000 meshes. The side sealing plate has the advantages of being low in firing temperature, excellent in high-temperature mechanical property and good in oxidation resistance, particularly can solve the problem that the side sealing plate is poor in initial blank shell oxidation wear resistance, and meanwhile meets the service requirements of thin-strip continuous casting on molten steel erosion resistance, molten steel thermal shock resistance, self-lubrication and the like of the side sealing plate.
本发明属于高温结构陶瓷技术领域，具体涉及一种双辊薄带连铸用复相陶瓷侧封板及制备方法。一种双辊薄带连铸用复相陶瓷侧封板，其特征在于：复相陶瓷侧板封板的制备原料及重量百分比为：氮化硼50～60%，氧化铝30～35%，碳酸钙3～5%，碳化硼5～10%；其中氮化硼的尺寸为两种，其中大粒径d50＞10μm，加入量40%～50%，小粒径BN鳞片d50＞1μm，加入量10%～15%；所述的氧化铝为纳米氧化铝，d50＜1μm；纳米碳酸钙，d50＜1μm，碳化硼为1000目。本发明使其具有烧成温度低、高温力学性能优、抗氧化性能好的特点，特别是能够解决困扰侧封板抗初生坯壳氧化磨损性能不足的问题，同时满足薄带连铸对侧封板抗钢液侵蚀、抗钢液热冲击、自润滑等服役要求。
Multi-phase ceramic side sealing plate for twin-roll thin-strip continuous casting and preparation method of multi-phase ceramic side sealing plate
一种双辊薄带连铸用复相陶瓷侧封板及制备方法
QIAN FAN (author) / LI HONGXIA (author) / LI ZHAORAN (author) / MA WEIKUI (author) / YU JIANBIN (author) / GU QIANG (author) / YANG WENGANG (author) / TANG YUFEI (author) / CHEN YONGQIANG (author)
2025-01-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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