High Alumina Refractory Brick Good Use
Alumina has a high hardness and density, High Alumina Refractory Brick the British hardness of 9, slightly lower than the diamond, the bulk density is generally greater than 3.5g / cm? 3, some up to 4.0g / cm? Alumina ceramic is divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain and other varieties, including 99 alumina ceramic materials for the production of high temperature crucible, High Alumina Refractory Brick refractory tube and special wear-resistant materials, such as ceramic bearings, ceramic seals Pieces, etc .; 95 alumina ceramic is mainly used for corrosion-resistant, wear-resistant parts.
Widely used in coal-fired power plants, steel, smelting, machinery, coal, mining, chemical, High Alumina Refractory Brick cement, port and other enterprises of coal, feeding system, milling system, ash, dust removal system, all wear large mechanical equipment , High Alumina Refractory Brick Can be based on different needs to provide different types of products.
High alumina brick in China is generally used for steel, steel, High Alumina Refractory Brick hot stove, electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining and other industrial furnaces, the main composition into a high bauxite; Kaolinite, High Alumina Refractory Brick red stone, silliman stone, etc.); artificial composition of materials, such as industrial alumina, composed of mullite, fused corundum and so on.
High alumina brick has a good use of quality, high refractoriness, long service life and other characteristics, is the primary use of industrial furnace refractory products. The general use of units in the acquisition of the time can not correctly distinguish the quality and grade of high alumina bricks, High Alumina Refractory Brick resulting in a high price to buy low-grade goods, High Alumina Refractory Brick and then reduce the life of the furnace, so find a brief introduction here in the acquisition of high How to identify the quality of brick when the aluminum brick.
Color: In the acquisition of high alumina brick, High Alumina Refractory Brick the first depends on the color, excellent high-alumina brick surface lubrication, yellow color white, four flat, no broken angle, High Alumina Refractory Brick no cracks.
Component: to say the weight of a single brick, according to the weight of a standard high-aluminum brick component of 4.5 kg. Two high-alumina brick component of 4.2 kg, High Alumina Refractory Brick three high-alumina brick component of 3.9 kg, equal grade, equal parameter type can reach this specification can be regarded as excellent high alumina brick, on the contrary does not reach this component to clarify the good quality, If you find a crack, four corners, broken angle and other scenes, it is substandard goods. High Alumina Refractory Brick More than a few hope to help the major refractory buyers.
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, High Alumina Refractory Brick can resist the acid slag and alkaline slag erosion, High Alumina Refractory Brick because it contains SiO2, so the ability of alkali-resistant slag than the ability of acid-resistant slag weak.
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, High Alumina Refractory Brick hot stove, electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining. In addition, High Alumina Refractory Brick high alumina bricks are also widely used to do flat furnace regenerative lattice brick, pouring system with the plug head, High Alumina Refractory Brick water tank and so on. But the price of high alumina brick than clay brick, so clay bricks can meet the requirements of the place do not have to use high alumina brick.