High Alumina Refractory Brick Be Strengthened
High Alumina Refractory Brick Alumina ceramics is the aluminum bauxite raw materials after chemical treatment, remove silicon, iron, titanium and other oxides are made, is a very high purity of alumina raw materials, $literal content in general more than 99%. The ore facies is composed of 40 Saat-Al-203 and 24 Chander Al2o3. Saat-Al-203 950 can be converted to Chander Al2o3 (corundum), High Alumina Refractory Brick and a significant volume contraction occurs at the same time.
The main components of Ruby and Sapphire are alumina, because other impurities show different color. Ruby contains chromium oxide and is red, sapphire contains iron oxide and titanium oxide and blue.
Alumina is the highest content in the main component of aluminum oxide. Industrially, the iron and aluminum oxide stone is purified from Bayerprocess to alumina, High Alumina Refractory Brick and then from Hall Herouloss to aluminum.
Alumina is the reason why metal aluminum is not easily corroded in the air. Pure metal aluminum is very easy to react with oxygen in the air, creating a thin layer of alumina film covering the surface of the aluminum exposed to the air. This layer of alumina film prevents aluminum from being oxidized. The thickness and properties of this oxide film can be enhanced through a process called anodic treatment (anode corrosion).
Aluminum is a good conductor of electricity and heat. The crystalline form of aluminum carborundum is suitable for grinding materials and cutting tools because of its high hardness.
Alumina powders are commonly used in the analysis of Sause layers.
High-temperature sintered alumina, High Alumina Refractory Brick called artificial corundum or man-made gem, can be made into mechanical bearings or diamonds in watches and clocks. Alumina is also used as high-temperature refractories, refractory bricks, crucibles, porcelain, artificial gemstones and so on, alumina is also the raw material of aluminum smelting. Calcined aluminum hydroxide can be Saat-Al-203. High Alumina Refractory Brick Saat-Al-203 has strong adsorption force and catalytic activity, and can be used as adsorbent and catalyst.
The main composition of corundum is Chander Al2o3. a barrel or cone-shaped tripartite crystal. There is glass luster or adamantine luster. The density is 3. Ambio. 1g CME, hardness 9, High Alumina Refractory Brick melting point 2000. Insoluble in water, also insoluble in acid and alkali. High temperature resistance. Colorless transparent person called white jade, containing traces of trivalent chromium red color ruby, containing two valence iron, trivalent iron or four-valence titanium blue-colored sapphire; a small amount of four iron oxide of the dark gray, dark black called corundum powder. Can be used as a precision instrument bearings, High Alumina Refractory Brick watches and clocks of diamonds, grinding wheel, polishing agent, refractory and electrical insulation. Colorful can be decorated with gems. The material of a man-made ruby single crystal can be made into lasers. In addition to natural minerals, High Alumina Refractory Brick the hydrogen oxide flame can be used to melt aluminum hydroxide.
Alumina has a very high hardness and density, the British hardness is 9, slightly lower than the diamond, the bulk density is generally greater than 3.5g Cm 3; some can reach 4. K Cm. 3;. Alumina ceramic According to $literal content is divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain and other varieties, of which 99 alumina ceramic materials used in the production of High-temperature crucible, furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals, etc. 95 alumina ceramic is mainly used as corrosion-resistant, wear-resisting
Widely used in coal-fired power plants, steel, High Alumina Refractory Brick smelting, machinery, coal, mining, chemical, cement, port terminals and other enterprises of coal transportation, feeding systems, milling systems, ash, dust removal system and other wear-resistant machinery and equipment, can be based on different needs to provide different types of products.