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镁砖Magnesite bricks 本产品经高温烧制而成，是碱性耐火材料中最主要的制品，具有耐火度高，对铁的氧化物、碱性炉渣及高钙熔剂具有良好的抗侵蚀性等特点，在冶金窑炉中应用广泛。 These products are manufactured by high temperature sintered. They have high refractoriness, good corrosion resistant to Ferrocompound, basic furnace slag and high CaO flux. They are main products of basic refractories, and have wide usage in metallurgical furnace. GB/T2275-2001 性能 properties 牌号 Brands MZ-95 MZ-89 MZ-87 化学成份Chemical composition % MgO ≥95 ≥89 ≥87 CaO 3 ≤3 ≤3 荷重软化温度 RUL,T0.6,℃ 1550 ≥1540 ≥1520 显气孔率 Apparent porosity,% 18 ≤20 ≤20 耐压强度 CCS,Mpa 58.8 ≥49 ≥39.2 重烧线变化 Linear change on reheation 1650℃×2h ,% 0.5 ≤0.6 — 镁铝尖晶石砖Magnesite Alumina spinel bricks 性能 properties 牌号 Brands MLJ-80 MLJ-75 化学成份Chemical composition,% Al2O3 ≥80 ≥75 MgO ≥15 ≥20 显气孔率Apparent porosity,% ≤18 ≤19 耐压强度 CCS,Mpa ≥40 ≥45 0.2MPa荷重软化开始温度℃（0.2Mpa,0.6%变形）,RUL,℃ ≥1700 ≥1650 热震稳定性（1100℃水冷），次Thermal shock resistance ,cycles 1000℃-water quench ≥10 ≥5 用途 Application：适用于水泥行业大型回转窑高温部位It is suitable for high temperature zone of large and middle-sized cement rotary kilns. 烧成镁铬砖 Burned magnessite chrome bricks　　烧成镁铬砖的生产工艺与镁砖大体相仿，其主要特点为：砖的气孔率低，耐压强度、荷重软化温度和抗折强度均较高，抗渣性和高温强度均比其他镁铬砖好。产品主要用于冶金行业平炉炉顶、电炉炉顶、精炼炉及各种有色金属冶炼炉，此外还用在水泥回转窑烧成带和玻璃窑的蓄热室等部位。　　The manufactured techniques of burned Magnesite chrome bricks are the same as magnesite bricks, with low porosity, high strengty and refractoriness under load, Their slag corrosion resistance and high temperature strengty are also better than other magnesite chrome brick. Their main usage are for metalurgical industry for example, ferrous smelting furnace; Besides, they are also used in thesintering zone of cement rotary kiln and regenerator of glass furnace,etc. YB/T5011-1997 性能 properties 牌号 Brands Mge-20 Mge-16 Mge-12 Mge-8 化学成份 Chemical composition,% MgO ≥50 ≥55 ≥60 ≥65 Cr2O3 ≥20 ≥16 ≥12 ≥8 荷重软化温度 RUL,T0.6,℃ ≥1700 ≥1700 ≥1650 ≥1650 显气孔率 Apparent porosity,% ≤18 ≤18 ≤19 ≤19 耐压强度 CCS,Mpa ≥35 ≥35 ≥35 ≥35 化学结合镁铬砖 Che