Hamedan Azarin Pouder Almas Mineral Industries is a famous company and brand in the field of production, supply, and export of refractory siliceous clay, in a wide range of high quality activities. This company is ready to deliver the product in different packaging and tonnages and facilitate the transportation of goods by land and sea to the destination of its valued customers. The ability to buy through the site and send and deliver goods at the customer’s place with accurate laboratory specifications according to the samples sent to foreign customers and according to the catalog and specifications included in the product identification card is possible for the purchase of Iranian compatriots. Contact the experts of this company to buy silica refractory mass or silica refractory soil. You can also receive your product from the factory door.
Refractory oxides include a wide range of ionic, binary and ternary ceramic compounds that can be used in structural applications, insulation, etc. An important point of view about the preparation and use of refractory silica, review of the applications of refractory oxides, description of the usual processing routes, overview of the basic structure and thermal properties, what is refractory clay, and a summary of the properties of these materials are provided.
Conditions for obtaining refractory silica
Using refractory clays, sillimite, kaolin, bauxite minerals, a mixture of sand, alumina sand and silica are produced. These materials are melted at a temperature of 1470 °C to obtain refractory silica.
Use of siliceous refractory soil in industries
Due to the ease of manufacturing, its high resistance to melting and its low cost, refractory silica is widely used in industries such as:
Casting (casting mold)
Insulation in steel and iron furnaces
Exploitation of refractory silica
Refractory silica can be used from sillimanite minerals (AL2SiO5).
For the exploitation of refractory silica, there are three anhydrous aluminosilicates, which are: andalusite, kyanite and sillimanite, whose ideal composition is 62.92% by weight of alumina and 37.08% by weight of silica. In the natural state, stones have impurities, which is a very good amount, the amount of alumina is usually less than 60% by weight.
Endulocytes are in the form of strips and their length can reach up to 7 cm. Since sillimanite minerals are geologically formed at high pressures (metamorphic minerals), they decompose when heated at high temperature in air at a pressure of 1 atm, the decomposition reaction can be written as follows:
3Al2O3·SiO2 = 3Al2O3·2SiO2 (Mullite) + SiO2
Qualities of refractory silicas
The quality of silica refractories is usually higher than fire and corrosion resistant refractories. Silica refractories contain at least 60% by weight of SiO2, this type of refractories can be produced from fire clays used in combination with silica-rich minerals such as quartz or flint. The reduction in free silica leads to an increase in the temperature of use for high silica refractories compared to clay refractories, up to 1740°C for some materials. Refractory silica is relatively inexpensive, and ceramic components may be produced with high efficiency using a variety of methods, for example without the use of expensive equipment such as special controlled-atmosphere furnaces, by slip casting, pressing, molding, etc. Injection molding and… high refractory silica materials can be successfully used in wear and erosion environments.
In this article, we tried to talk about the quality of refractory silicas, as well as its use, what is refractory soil and its use in industries, we hope that we have been able to provide you with the material that you like. You can purchase refractory silica through the website of Azarin Almas Diamond Company in Hamedan.