Corundum composite silicon carbide brick, corundum silicon carbide brick is a high-performance ceramic material. It has the advantages of good thermal stability, corrosion resistance, high thermal conductivity, and energy-saving materials. Why do composite corundum silicon carbide bricks have excellent acid and alkali corrosion resistance?
Composite Corundum Silicon Carbide Brick with Excellent Acid and Alkali Corrosion Resistance
Silicon carbide bricks have high thermal conductivity and good wear resistance, thermal shock resistance, and corrosion resistance. It can be used for aluminum electrolytic cell linings, molten aluminum conduits and kiln furniture for ceramic kilns, lower parts of large and medium-sized blast furnaces, waists and belly, aluminum refining furnace linings, zinc distillation tank linings, etc. Corundum silicon carbide bricks are widely used in the chemical industry, metallurgy, and other fields because of their good acid and alkali corrosion resistance. The main reasons are as follows.
Corundum and silicon carbide are ceramic materials with high stability good corrosion resistance and chemical resistance. Corundum has high hardness and high wear resistance, while silicon carbide has high heat resistance and high thermal conductivity. The combination of these two materials gives corundum silicon carbide bricks better corrosion resistance.
The microstructure of corundum silicon carbide bricks is stable, with fine and uniform grains. This makes its surface smoother, without obvious defects and pores, and less susceptible to acid and alkali erosion.
The chemical composition of corundum silicon carbide bricks is stable and does not easily react with acids and alkalis. Therefore it has high chemical stability.
In the preparation process of corundum silicon carbide bricks, high-temperature sintering, and other preparation processes can be used to make the crystal structure dense and not easily eroded by acids and alkalis. At the same time, certain additives, such as alumina, can be added during the preparation process to improve its corrosion resistance and chemical stability.
Based on the above properties of corundum silicon carbide bricks, in actual use, the superior performance characteristics of corundum silicon carbide bricks are highlighted. The main characteristics of corundum silicon carbide bricks will be explained in detail below.
Good wear resistance. Corundum silicon carbide bricks have extremely high hardness and wear resistance and can be used for a long time without wear in harsh working environments such as high temperatures and high pressure.
Corrosion resistance. Corundum silicon carbide bricks are resistant to corrosive media such as acids and alkalis and are not easily corroded and worn. They can be used in highly corrosive situations such as the chemical industry.
Thermal shock resistance. Corundum silicon carbide bricks have good thermal stability and thermal shock resistance at high temperatures, can withstand large temperature differences and thermal shocks, and are not prone to cracking and breakage.
High thermal conductivity. Corundum silicon carbide bricks have excellent thermal conductivity properties and can transfer heat quickly, making the heating and cooling process more efficient.
Energy-saving materials. Because corundum silicon carbide bricks have excellent thermal conductivity, they can reduce heating and cooling time and energy consumption, so they are an energy-saving material.
How to Judge the Quality of Silicon Carbide Bricks?
Silicon carbide bricks are refractory materials made of SiC as the main raw material. Containing SiC72%~99%. It is divided into clay-bonded, Si3N4 bonded, Sialon bonded, β-SiC bonded, Si2ON2 bonded and recrystallized silicon carbide bricks. Silicon carbide bricks have high thermal conductivity and good wear resistance, thermal shock resistance, and corrosion resistance. It can be used for aluminum electrolytic cell linings, molten aluminum conduits and kiln furniture for ceramic kilns, lower parts of large and medium-sized blast furnaces, waists and belly, aluminum refining furnace linings, zinc distillation tank linings, etc.
When purchasing silicon carbide bricks, many users are unable to distinguish the quality of silicon carbide products due to a lack of experience when purchasing silicon carbide bricks and silicon carbide products. As a result, substandard silicon carbide products are often purchased, which greatly affects the service life of the kiln. Increased investment in refractory materials will bring unnecessary losses to enterprises. So how to identify the pros and cons of silicon carbide bricks?
The size specifications of silicon carbide bricks should be precise, and the specific gravity of silicon carbide bricks is generally between 2.45–2.6. If the specific gravity is too small or too large, it means that the material itself is impure and other refractory materials must have been added. This greatly affects the silicon carbide content and the heat transfer performance of silicon carbide. In addition, when purchasing silicon carbide bricks, you should check whether there are chipped corners and cracks on the surface of the bricks. The chipped corners and cracks should be acceptable within the national standard. If it seriously exceeds the national standard, the quality of the product will be unqualified.
RS Cheap Refractory Brick Manufacturer
Silicon carbide bricks are widely used due to their excellent properties. Rongsheng manufacturer supplies refractory bricks, wear-resistant, fire-resistant, corrosion-resistant, and thermal shock-resistant silicon carbide bricks. Wear-resistant silicon carbide bricks have good corrosion resistance, stable volume at high temperatures without deformation, high-temperature resistance, wear resistance, good thermal conductivity, and are not easily deformed or oxidized.
Application of RS Silicon Carbide Bricks
The blast furnace tuyere water cooling pipe is covered with bricks. Silicon nitride combined with silicon carbide bricks has strong corrosion resistance.
Refractory bricks, wear-resistant bricks, and corrosion-resistant special-shaped aluminum silicon carbide bricks are used in the metallurgical industry.
To purchase high-quality silicon carbide bricks, please choose a competent refractory brick manufacturer. Just like RS cheap refractory brick for sale manufacturers, they can not only provide high-quality refractory brick products but also provide comprehensive customer service. Our service purpose is to ensure the long-term and efficient operation of high-temperature industrial furnaces and save production costs for enterprises to the greatest extent.
