Refractory is an indispensable part in modern industrial production, and Molaisha, as a high-quality refractory, has attracted much attention because of its unique properties and wide application fields. This paper will introduce the characteristics, application, advantages and market prospect of Molaisha in detail.
Chamotte Sand is a kind of refractory material which has been sintered at high temperature. Mullite is the main component, and its chemical components include alumina (Al₂O₃) and silica (SiO₂). Molai sand has a variety of granularity specifications, such as 8-16 mesh, 16-30 mesh and 30-60 mesh, which can meet the needs of different industrial scenes.
High fire resistance: Molaisha has a very high fire resistance temperature, can remain stable in extremely high temperature environment without melting or deformation, and is suitable for lining materials of various high temperature furnaces.
Low expansion coefficient: At high temperature, the thermal expansion coefficient of Molaisha is small, which means that it can keep its size stable when the temperature changes and reduce the structural damage caused by thermal expansion and cold contraction.
High bulk density: Molaisha has a high bulk density, which makes it have good erosion resistance and wear resistance, and can effectively resist the erosion of high-temperature slag and chemicals.
Low impurity content: Molaisha has undergone strict quality control in the production process, and its iron content and other impurities are extremely low, thus ensuring its purity and stability at high temperature.
Good permeability: Molaisha has certain permeability, which can allow gas to pass through at high temperature, avoiding the explosion risk caused by gas accumulation, and also contributing to the uniform distribution of atmosphere in the furnace.
Molaisha is widely used in many industrial fields, especially in foundry industry. The following are its main applications:
Precision casting: Molaisha is an indispensable material in precision casting process. It is used to make the outer layer of casting mold, which can withstand the impact and erosion of high-temperature molten metal and ensure the accuracy and surface quality of castings. For example, in the precision casting of stainless steel, alloy steel, carbon steel and other metals, Molaisha can ensure the dimensional accuracy and surface smoothness of castings.
Ceramic production: In the ceramic industry, Molaisha can be used to make ceramic bodies and glazes. Its high fire resistance and low expansion coefficient are helpful to improve the quality and performance of ceramic products.
Glass melting: Molybdenum sand can be used as lining material of glass melting furnace, which can withstand the erosion of high-temperature glass melt and prolong the service life of furnace lining.
High-temperature furnaces: Molaisha can also be used to make linings of various high-temperature furnaces, such as ceramic firing furnaces, glass melting furnaces, metal smelting furnaces, etc., which can effectively protect the furnace structure and improve the service life of furnaces.
Easy demoulding: In the casting process, the mold made of Molaisha is easy to demould, which will not damage the casting surface and improve the production efficiency.
High yield: Due to the high fire resistance and low impurity content of Molai sand, the castings produced by Molai sand have high quality and high yield, which reduces the production cost.
Environmental performance: Molaisha will not release harmful substances in the process of production and use, which meets the requirements of environmental protection and is a green refractory.
With the continuous development of industrial technology, the performance requirements of refractories are getting higher and higher. With its excellent performance, Molaisha has a growing demand in the fields of precision casting, ceramic production and glass melting. Especially in the field of high-end precision casting, Molaisha has a broad application prospect. In addition, with the increasingly strict environmental protection policy, Molaisha, as an environmentally friendly refractory, will also receive more attention.
As a high-performance refractory, Molaisha has an irreplaceable position in industrial production because of its high fire resistance, low expansion coefficient and high bulk density. Its wide application in precision casting, ceramic production, glass melting and other fields not only improves the product quality, but also reduces the production cost. With the progress of industrial technology and the improvement of environmental protection requirements, Molaisha has a broad market prospect and will play a greater role in the future.
