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Magnesia carbon brick and preparation method thereof
The invention relates to a magnesia carbon brick. The magnesia carbon brick comprises the following raw materials of: 40-50 parts of fused magnesite with the diameter of 3-5 mm; 25 to 35 parts of fused magnesite with the particle size of 1 to 3mm; 5 to 15 parts of fused magnesite with the particle size of 0 to 1mm; 15-25 parts of 200-mesh fused magnesite; 0.5-5 parts of 500-mesh carbon fiber powder; 0.5-5 parts of 800-mesh carbon fiber powder; 1-5 parts of 200-mesh graphite; 1-5 parts of 200-mesh carbon black; 1-5 parts of 200-mesh titanium carbonitride powder; 1-10 parts of 200-mesh metal aluminum powder; 0.1-1 part of glycerol; and 1-10 parts of phenolic resin. The titanium carbonitride has the advantages of TiC and TiN, and is high in melting point, high in hardness, resistant to abrasion and oxidation and good in heat conductivity, and can improve the performance of the magnesia carbon brick. In a baking process after the magnesia carbon brick is built, in the presence of glycerol,MgO reacts with water to form Mg (OH)2, and part of magnesium hydroxide whiskers are formed in the process of forming the Mg (OH)2, so that a nailing effect is achieved, and the problem of peeling ofa hot-state structure is avoided.
本发明涉及一种镁碳砖，其原料包含3‑5mm电熔镁砂40‑50份，1‑3mm电熔镁砂25‑35份，0‑1mm电熔镁砂5‑15份，200目电熔镁砂15‑25份，500目碳纤维粉0.5‑5份，800目碳纤维粉0.5‑5份，200目石墨1‑5份，200目炭黑1‑5份，200目碳氮化钛粉1‑5份，200目金属铝粉1‑10份，甘油0.1‑1份，酚醛树脂1‑10份。碳氮化钛兼具TiC和TiN的优点，熔点高、硬度大、耐磨、耐氧化，具有良好的导热性，提高镁碳砖性能。镁碳砖砌筑后的烘炉过程中，在甘油存在的环境下，MgO与水反应形成Mg(OH)2过程中形成部分氢氧化镁晶须，起到扎钉作用，避免热态结构剥落的问题。
Magnesia carbon brick and preparation method thereof
The invention relates to a magnesia carbon brick. The magnesia carbon brick comprises the following raw materials of: 40-50 parts of fused magnesite with the diameter of 3-5 mm; 25 to 35 parts of fused magnesite with the particle size of 1 to 3mm; 5 to 15 parts of fused magnesite with the particle size of 0 to 1mm; 15-25 parts of 200-mesh fused magnesite; 0.5-5 parts of 500-mesh carbon fiber powder; 0.5-5 parts of 800-mesh carbon fiber powder; 1-5 parts of 200-mesh graphite; 1-5 parts of 200-mesh carbon black; 1-5 parts of 200-mesh titanium carbonitride powder; 1-10 parts of 200-mesh metal aluminum powder; 0.1-1 part of glycerol; and 1-10 parts of phenolic resin. The titanium carbonitride has the advantages of TiC and TiN, and is high in melting point, high in hardness, resistant to abrasion and oxidation and good in heat conductivity, and can improve the performance of the magnesia carbon brick. In a baking process after the magnesia carbon brick is built, in the presence of glycerol,MgO reacts with water to form Mg (OH)2, and part of magnesium hydroxide whiskers are formed in the process of forming the Mg (OH)2, so that a nailing effect is achieved, and the problem of peeling ofa hot-state structure is avoided.
本发明涉及一种镁碳砖，其原料包含3‑5mm电熔镁砂40‑50份，1‑3mm电熔镁砂25‑35份，0‑1mm电熔镁砂5‑15份，200目电熔镁砂15‑25份，500目碳纤维粉0.5‑5份，800目碳纤维粉0.5‑5份，200目石墨1‑5份，200目炭黑1‑5份，200目碳氮化钛粉1‑5份，200目金属铝粉1‑10份，甘油0.1‑1份，酚醛树脂1‑10份。碳氮化钛兼具TiC和TiN的优点，熔点高、硬度大、耐磨、耐氧化，具有良好的导热性，提高镁碳砖性能。镁碳砖砌筑后的烘炉过程中，在甘油存在的环境下，MgO与水反应形成Mg(OH)2过程中形成部分氢氧化镁晶须，起到扎钉作用，避免热态结构剥落的问题。
Magnesia carbon brick and preparation method thereof
一种镁碳砖及其制备方法
YIN BIN (author) / ZHANG YIXIAN (author) / WANG XINJIE (author) / WANG ZHENYU (author)
2020-10-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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