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Silicon carbide and mullite combined multiphase refractory material and preparation method thereof
The invention discloses a silicon carbide and mullite combined multiphase refractory material and a preparation method thereof. The silicon carbide and mullite combined multiphase refractory material comprises the following components in parts by mass: 45-70 parts of coal gangue I, 10-50 parts of coal gangue II, 0-25 parts of coal gangue III, 5-15 parts of pulverized coal, 5-10 parts of a mineralizing agent and 2-8 parts of a forming additive, wherein the coal gangue I comprises 40 to 46 percent of Al2O3, 51 to 56 percent of SiO2 and 2 to 5 percent of C; the coal gangue II comprises 36 to 52 percent of Al2O3, 40 to 45 percent of SiO2 and 12 to 18 percent of C; and the coal gangue III comprises 46 to 52 percent of Al2O3, 41 to 45 percent of SiO2 and 5 to 8 percent of C. The silicon carbide and mullite combined multiphase refractory material has the characteristics of high refractoriness which can reach 1800 DEG C, good high-temperature stability, low thermal expansion coefficient, small thermal conductivity, corrosion resistance, high strength, good fracture toughness and the like, and is widely applied to the fields of production of high-temperature structural member raw materials, special refractory bricks, saggers and the like in the field of refractory materials.
本发明公开了一种碳化硅结合莫来石复相耐火材料及其制备方法，包括以质量份数：煤矸石一为45～70份、煤矸石二为10～50份、煤矸石三为0～25份、煤粉为5～15份、矿化剂为5～10份、成型添加剂为2～8份；煤矸石一包括Al2O3为40～46％、SiO2为51～56％、C为2～5％；煤矸石二包括Al2O3为36～52％、SiO2为40～45％、C为12～18％；煤矸石三包括Al2O3为46～52％、SiO2为41～45％、C为5～8％。本发明的碳化硅结合莫来石复相耐火材料，具有耐火度高，可达到1800℃，高温稳定性好，热膨胀系数低，热导率小，耐腐蚀，强度高，断裂韧性好等特点，广泛应用于耐火材料领域的高温结构件原料、特种耐火砖、匣钵生产等领域。
Silicon carbide and mullite combined multiphase refractory material and preparation method thereof
The invention discloses a silicon carbide and mullite combined multiphase refractory material and a preparation method thereof. The silicon carbide and mullite combined multiphase refractory material comprises the following components in parts by mass: 45-70 parts of coal gangue I, 10-50 parts of coal gangue II, 0-25 parts of coal gangue III, 5-15 parts of pulverized coal, 5-10 parts of a mineralizing agent and 2-8 parts of a forming additive, wherein the coal gangue I comprises 40 to 46 percent of Al2O3, 51 to 56 percent of SiO2 and 2 to 5 percent of C; the coal gangue II comprises 36 to 52 percent of Al2O3, 40 to 45 percent of SiO2 and 12 to 18 percent of C; and the coal gangue III comprises 46 to 52 percent of Al2O3, 41 to 45 percent of SiO2 and 5 to 8 percent of C. The silicon carbide and mullite combined multiphase refractory material has the characteristics of high refractoriness which can reach 1800 DEG C, good high-temperature stability, low thermal expansion coefficient, small thermal conductivity, corrosion resistance, high strength, good fracture toughness and the like, and is widely applied to the fields of production of high-temperature structural member raw materials, special refractory bricks, saggers and the like in the field of refractory materials.
本发明公开了一种碳化硅结合莫来石复相耐火材料及其制备方法，包括以质量份数：煤矸石一为45～70份、煤矸石二为10～50份、煤矸石三为0～25份、煤粉为5～15份、矿化剂为5～10份、成型添加剂为2～8份；煤矸石一包括Al2O3为40～46％、SiO2为51～56％、C为2～5％；煤矸石二包括Al2O3为36～52％、SiO2为40～45％、C为12～18％；煤矸石三包括Al2O3为46～52％、SiO2为41～45％、C为5～8％。本发明的碳化硅结合莫来石复相耐火材料，具有耐火度高，可达到1800℃，高温稳定性好，热膨胀系数低，热导率小，耐腐蚀，强度高，断裂韧性好等特点，广泛应用于耐火材料领域的高温结构件原料、特种耐火砖、匣钵生产等领域。
Silicon carbide and mullite combined multiphase refractory material and preparation method thereof
碳化硅结合莫来石复相耐火材料及其制备方法
GAO YONGTAO (author) / ZHOU LI (author) / LIN LIAN (author) / ZHAO KAIYAN (author)
2021-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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