The price of high alumina bricks varies, and there are different quotes in the industry. Which one is better? In fact, the price of high alumina bricks is determined by their performance, which is closely related to their quality. Today, I will take you to understand the performance of high alumina bricks:
High alumina refractory bricks, silicate refractory materials with over 48% alumina content. The formation and calcination of alumina or other high alumina raw materials. Thermal stability, high fire resistance at over 1770 ℃. Good slag resistance. High alumina bricks and refractory bricks are widely used, therefore, the price of high alumina bricks directly affects the cost of enterprises.
An important characteristic of a high alumina refractory brick is its structural strength at high temperatures, which is usually evaluated by the temperature of re softening deformation. We also measured its high-temperature creep to reflect its high-temperature structural strength. The experimental results indicate that the softening temperature increases with the increase of Al2O3 content. The factory for high alumina bricks is divided into three levels based on the content of Al2O3: Level I: Al2O3 content>75%; The content of Grade II Al2O3 is 60% to 75%; The content of Grade III Al2O3 ranges from 48% to 60%. Generally speaking, the price of Grade III high alumina bricks is divided into three tiers.
High alumina bricks with an alumina content of over 48% are raw materials for neutral refractory brick manufacturers. The formation and calcination of alumina or other high alumina raw materials. High heat resistance, refractory brick factory above 1770. It has good slag resistance and is used in furnace linings, glass kilns, cement rotary furnaces, etc. This product has advantages such as high temperature creep, strong corrosion resistance, and good thermal shock stability. Suitable for large and medium-sized blast furnaces.
*The technology of high alumina bricks and cement clinker clay bricks is more similar, but the difference is that the composition ratio of cement clinker is relatively high, which can be used as 90-95%, breaking through the previous sorting and screening of clinker grading and iron removal. The firing temperature is higher, such as 1500~1600 ℃ when firing high alumina bricks in tunnel kilns for I and II. High alumina bricks have a higher fire resistance than clay bricks and semi silica bricks, with a fire resistance of 1750-1790. They are excellent refractory materials. The higher the fire resistance, the better the performance, and the heavier the relative price.
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