What is the normal temperature of the electrolytic cell
The normal temperature range of an electrolytic cell is usually between 945-965 degrees Celsius, in order to ensure that the electrolytic reaction proceeds at a uniform and stable operating temperature. During the production process, the wall temperature of the electrolytic cell can reach 300-350 degrees Celsius, mainly dissipating heat to the workshop through radiation and natural convection. In summer, the temperature in the aisle between electrolytic aluminum cells often exceeds 60 degrees Celsius, and the working environment is extremely harsh. The optimal electrolysis temperature of the electrolytic cell depends on the current density and other factors, generally between 81-89 degrees Celsius, but the specific temperature needs to be adjusted according to the actual situation. During the start-up and operation of the electrolytic cell, temperature control and management are crucial to ensure the efficiency and safety of the electrolysis process.
Silicon carbide refractory brick is a refractory material mainly made of silicon carbide (SiC), which has a series of excellent performance characteristics, making it widely applicable in harsh working environments such as high temperature, wear resistance, and corrosion resistance. The following are the main characteristics of silicon carbide refractory bricks:
1. High hardness and wear resistance
High hardness: The Mohs hardness of silicon carbide brick reaches 9, second only to diamond and boron nitride, making it a high hardness ceramic material. This makes silicon carbide bricks have excellent wear resistance and can maintain good performance for a long time in environments with severe mechanical wear.
2. High temperature resistance and high strength
High temperature resistance: The melting point of silicon carbide brick is as high as 2700 ℃, which can work stably in high temperature environments and maintain excellent physical and chemical properties.
High temperature strength: Silicon carbide bricks can withstand pressure and bending at high temperatures without deformation or cracking, making them suitable for lining and key components of various high-temperature furnaces.
3. Excellent thermal performance
High thermal conductivity: Silicon carbide bricks have good thermal conductivity and can transfer heat more effectively, which is particularly important for industrial equipment that requires efficient heat transfer.
Small coefficient of thermal expansion: Good dimensional stability at high temperatures, less likely to deform or crack due to temperature changes, improving the service life and safety of the equipment.
Thermal shock resistance: Silicon carbide bricks can withstand rapid temperature changes without cracking or fracture, which makes them of great application value in high-temperature furnaces and other equipment.
4. Corrosion resistance
Silicon carbide bricks have high stability in corrosive media such as acid and alkali, and can effectively resist corrosion and erosion, extending their service life. This makes silicon carbide bricks widely used in industries such as chemical engineering.
5. Diversified combination methods
Silicon carbide bricks can be classified into various types based on different bonding methods, such as clay bonding, silicon nitride bonding, Sialon bonding, β - SiC bonding, Si ₂ ON ₂ bonding, and recrystallization. Each type of silicon carbide brick has slight differences in composition, process, and performance to meet the needs of different industrial fields.
6. Wide range of application areas
Due to the excellent performance characteristics mentioned above, silicon carbide bricks have been widely used in various fields such as metallurgy, chemical engineering, and kiln structures. For example, in the process of non-ferrous metal smelting, silicon carbide bricks are often used as furnace lining materials; In steel production equipment such as blast furnaces and hot blast stoves, silicon carbide bricks are used to construct the furnace body or lining; In ceramic kilns, silicon carbide bricks can be used as lining or burner components.
In summary, silicon carbide refractory bricks play an important role in the field of refractory materials due to their high hardness, high temperature resistance, high strength, excellent thermal performance, and corrosion resistance. They are widely used in various high-temperature, wear-resistant, and corrosion-resistant industrial environments.
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