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Preparation method of nano boron carbide reinforced high-thermal-conductivity compact silica brick
The invention discloses a preparation method of a nano boron carbide reinforced high-thermal-conductivity compact silica brick. The preparation method comprises the following steps: step 1, putting a proper amount of main raw materials, a composite mineralizing agent and a binding agent into ball milling equipment, and mixing; 2, putting the mixed powder manufactured in the step 1 into forming equipment, and performing compression molding by using the forming equipment; step 3, drying the formed silica brick manufactured in the step 2 in an environment of 60-100 DEG C for 24-48 hours; step 4, pre-sintering the silica bricks dried in the step 3 in an environment of 400-800 DEG C for 3-6 hours; step five, sintering the pre-sintered silica brick in the step four in an environment of 1400-1600 DEG C for 5-8 hours; and 6, cooling the silica brick sintered in the step 5 to normal temperature. After the boric acid and the urea are added as binding agents, the adhesion between the raw materials is enhanced, extrusion forming through forming equipment is facilitated, in a high-temperature environment, the boric acid and the urea react to produce nano flaky boron carbide, the volume density of a blank product is improved, the internal structure of the blank product is further densified, and the strength of the silica brick is improved.
本发明公开了一种纳米碳化硼增强的高导热致密硅砖的制备方法，包括步骤一：将适量的主要原料、复合矿化剂、结合剂投入球磨设备中混合；步骤二：将步骤一中制造的混合粉料投入成型设备中，利用成型设备工作模压成型；步骤三：步骤二中制造的成型硅砖在60‑100℃的环境中干燥24‑48h；步骤四：步骤三中干燥的硅砖在400‑800℃的环境下预烧结3‑6h；步骤五：步骤四中预烧结的硅砖在1400‑1600℃的环境下烧结5‑8h；步骤六：步骤五中烧结后的硅砖冷却至常温即可制得；本发明添加硼酸和尿素作为结合剂后，增强了原料之间的粘附型，便于通过成型设备挤压成型，且在高温环境下，硼酸和尿素反应生产纳米片状碳化硼，提高坯制品体积密度，使其内部结构进一步密制化，提高了硅砖的强度。
Preparation method of nano boron carbide reinforced high-thermal-conductivity compact silica brick
The invention discloses a preparation method of a nano boron carbide reinforced high-thermal-conductivity compact silica brick. The preparation method comprises the following steps: step 1, putting a proper amount of main raw materials, a composite mineralizing agent and a binding agent into ball milling equipment, and mixing; 2, putting the mixed powder manufactured in the step 1 into forming equipment, and performing compression molding by using the forming equipment; step 3, drying the formed silica brick manufactured in the step 2 in an environment of 60-100 DEG C for 24-48 hours; step 4, pre-sintering the silica bricks dried in the step 3 in an environment of 400-800 DEG C for 3-6 hours; step five, sintering the pre-sintered silica brick in the step four in an environment of 1400-1600 DEG C for 5-8 hours; and 6, cooling the silica brick sintered in the step 5 to normal temperature. After the boric acid and the urea are added as binding agents, the adhesion between the raw materials is enhanced, extrusion forming through forming equipment is facilitated, in a high-temperature environment, the boric acid and the urea react to produce nano flaky boron carbide, the volume density of a blank product is improved, the internal structure of the blank product is further densified, and the strength of the silica brick is improved.
本发明公开了一种纳米碳化硼增强的高导热致密硅砖的制备方法，包括步骤一：将适量的主要原料、复合矿化剂、结合剂投入球磨设备中混合；步骤二：将步骤一中制造的混合粉料投入成型设备中，利用成型设备工作模压成型；步骤三：步骤二中制造的成型硅砖在60‑100℃的环境中干燥24‑48h；步骤四：步骤三中干燥的硅砖在400‑800℃的环境下预烧结3‑6h；步骤五：步骤四中预烧结的硅砖在1400‑1600℃的环境下烧结5‑8h；步骤六：步骤五中烧结后的硅砖冷却至常温即可制得；本发明添加硼酸和尿素作为结合剂后，增强了原料之间的粘附型，便于通过成型设备挤压成型，且在高温环境下，硼酸和尿素反应生产纳米片状碳化硼，提高坯制品体积密度，使其内部结构进一步密制化，提高了硅砖的强度。
Preparation method of nano boron carbide reinforced high-thermal-conductivity compact silica brick
一种纳米碳化硼增强的高导热致密硅砖的制备方法
XIANG LIUYI (author) / SHU ZHIQING (author) / LIU QINGQUAN (author) / WANG HAIPENG (author) / XIE WEN (author) / XU NANA (author) / ZHANG XIN (author) / TANG YUEZU (author) / WANG JINBIAO (author) / TAN SIQI (author)
2024-10-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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