Take you to understand the basic knowledge of high-quality silicon bricks
[Summary description] High-quality silica brick is a kind of refractory mouth. It is made of silica as the main raw material. Human mineralizers and binders will be added in the process of processing, such as iron, phosphorus, lime milk and sulfite pulp.
High-quality silica brick is a kind of refractory mouth. It is made of silica as the main raw material. Human mineralizers and binders will be added in the process of processing, such as iron, phosphorus, lime milk and sulfite pulp. It is a common additive for the production of high-quality silica bricks. It can only be formed after mixing, molding, drying and firing. The high content of SiO2 used in the raw material during processing will make it have better fire resistance. Impurities produced during the production of ordinary silica bricks are harmful. High-quality silica bricks will process the raw materials to remove these impurities, which can ensure quality and safety.
The composition of high-quality silicon bricks is more complex. It is composed of a variety of minerals, not only phosphorite yellow and square quartz, but also a small amount of quartz and glassy formed at high temperature. The quality of high-quality silicon bricks is different, and the fluctuation of mineral composition will be relatively large. The better the quality of high-quality silicon bricks, the more stable the mineral content, which is an important basis for people to buy it.
High-quality silicon brick belongs to acidic refractory materials. It has excellent corrosion resistance to acidic slag or acidic solution, but this material has particularly poor resistance to alkaline material erosion and is easily damaged by Al2O3, K2O, Na2O and other oxidizing substances. High-quality silicon bricks have good resistance to CaO, FeO, Fe2O3 and other oxidizing substances, and it can be used normally in an environment containing these oxidizing substances.
High load softening temperature is the main characteristic of high-quality silicon bricks. Its load softening temperature is about 1600 degrees, which is very close to the melting point of phosphorus quartz. High-quality silicon bricks can maintain volume stability in an environment above 300 degrees. When heated to more than 1400 degrees in use, volume expansion will occur, which is conducive to ensuring the structural strength and air tightness of masonry. The properties of high-quality silicon bricks are stable, and its technological process is closely related to the crystal transformation of SiO2. True density is an important symbol for people to judge the degree of its crystal transformation, and it is also an important indicator for determining its quality.
High-quality silicon bricks have a wide range of ways and are used in many places, especially in masonry coke ovens, carbonization chambers, combustion chambers, and partition walls. This material is used in high-temperature and heavy parts of glass pool kilns, pool walls, and hot blast stoves. However, enterprises should also pay attention to its classification when purchasing high-quality silicon bricks. It can be divided into standard types, ordinary types, and special types according to the degree of complexity. Enterprises should make the right choice according to their own needs. After understanding the basic knowledge of high-quality silicon bricks, you will have a comprehensive understanding of it. If you need refractory materials, you will know how to do it when purchasing similar materials, and you can easily purchase the products you need.