High Alumina Refractory Brick Excellent Effect
High-alumina refractory bricks are more common refractory materials, but many users in the use of the process will be worried about their fear of fear of water, High Alumina Refractory Brick especially worried that it will be blisters possible. High Alumina Refractory Brick Now the experts from the professional point of view for us to solve this question.
Precisely, high-alumina refractory bricks are not afraid of water, high alumina refractory bricks of great density, usually not soaked in water, High Alumina Refractory Brick the furnace is also the time to use wet mud puzzle up, puzzle with a small fire gradually Drying in the future and then put into use no problem. Insulation brick and high alumina refractory brick is not the same: insulation brick is not see the fire, low thermal conductivity, High Alumina Refractory Brick used to heat the effect is excellent. High aluminum refractory bricks are the opposite.
High aluminum refractory bricks with high quality tectonic strength and resistance to slag erosion, high refractoriness. With natural high bauxite (85%), silicon wire stone minerals, High Alumina Refractory Brick corundum sand and industrial alumina as the main raw material, adding a small amount of binding clay, the amount of chemical contact agent, mixed evenly, by high pressure molding, boring, High Alumina Refractory Brick according to different The grade is fired at high temperature. So he was not afraid of water.
Alumina content of more than 48% of a neutral refractory. Made of bauxite or other high alumina content of raw materials formed by molding and calcination. High thermal stability, refractoriness above 1770 ℃. Good slag resistance. Used for masonry steelmaking furnace, High Alumina Refractory Brick glass melting furnace, High Alumina Refractory Brick cement rotary kiln and other lining.
High charge soft. Low creep high alumina bricks are special bauxite. Fused corundum, fused mullite as the main raw materials made of high refractories. The product has a small creep at high temperature. Strong resistance to erosion. Thermal shock stability and other advantages, High Alumina Refractory Brick suitable for large and medium-sized hot air stove, which is China's new hot stove required high-quality, high-grade imports of refractory materials to open up a successful road, has been included in the national "Spark Program "project.
High alumina brick refractoriness than clay brick and semi-silica brick refractorance should be high, up to 1750 ~ 1790 ℃, are high refractories. High alumina brick Al2O3, close to the neutral refractory material, can resist the acid slag and alkaline slag erosion, because it contains SiO2, High Alumina Refractory Brick so the ability of alkali-resistant slag than the ability of acid-resistant slag weak.
The use of high alumina bricks
Because high-alumina products in the high Al2O3, High Alumina Refractory Brick less impurities, the formation of fusible glass less, so the load softening temperature than the clay brick, but the mullite crystallization does not form a network of organizations, so the load softening temperature is still no silicone bricks.
High alumina refractory in the Al2O3 more, High Alumina Refractory Brick close to the neutral refractory material, can resist the acid slag and alkaline slag erosion, because it contains SiO2, so the ability to resist alkaline slag resistance than acid slag weak.
Mainly used for masonry blast furnace, hot stove, High Alumina Refractory Brick electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining. In addition, high alumina bricks are also widely used to do flat furnace regenerative lattice brick, High Alumina Refractory Brick pouring system with the plug head, water tank and so on. But the price of high alumina brick than clay brick, High Alumina Refractory Brick so clay bricks can meet the requirements of the place do not have to use high alumina brick.