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Fused Cast re-sintered corundum mullite brick
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Product Introduction
Product Details
The difference between fused mullite and sintered mullite:
The main difference between fused mullite and sintered mullite lies in the preparation process, physical properties, chemical properties and application fields.
1. Preparation process: Melting mullite is prepared by melting mullite raw materials through an electric furnace under high temperature conditions such as electric arc. The sintered mullite is made by using mullite powder as the main raw material, through molding, sintering and other processes.
2. Physical Properties: The density of fused mullite is relatively high, and the true density can reach more than 3.15g/cm³, while the density of sintered mullite is generally between 2.8 and 3.0g/cm³. The grain size of fused mullite is relatively smaller and uniform, and the structural stability and thermal shock stability are better.
3. Chemical properties: The oxide content of fused mullite is low, and the content of aluminum silicate potassium calcium and other elements is relatively high, while sintered mullite is the opposite. This is because the chemical reaction of the mullite material is more complete during the electrofusion process, and the resulting product has a lower oxide content.
4. Application areas: fused mullite is mainly used for high temperature, high pressure and other harsh conditions of application, such as molten metal, high temperature furnace wall, glass kiln furnace channel, pool wall and other external insulation, auxiliary bottom, etc. In summary, there are obvious differences between fused mullite and sintered mullite in terms of preparation process, physical properties, chemical properties and application fields.
Electromelting and re-sintering corundum mullite physical and chemical indicators:
Product Index | Corundum Mullite Brick DM-80 | Corundum Mullite Brick DM-85 | High Purity Corundum Brick A- 95 | High Purity Low Silica Corundum Brick TA-99 |
Al203(%) | ≥ 80 | ≥85 | ≥95 | ≥99 |
SiO2(%) | ≤ 19 | ≤14 | / | ≤ 0.29 |
Fe203(%) | ≤0.3 | ≤0.3 | ≤0.2 | ≤ 0.15 |
Percent Porosity (%) | ≤18 | ≤18 | ≤ 17 | ≤ 17 |
Bulk Density (g/cm3) | ≥ 2.80 | ≥ 2.95 | ≥ 3.15 | ≥ 3.15 |
Cold Pressing Strength (Mpa) | >100 | ≥ 100 | ≥ 110 | ≥120 |
0.2Mpa Load Softening Temperature 0.6 (℃) | ≥ 1700 | ≥ 1700 | ≥ 1700 | ≥ 1700 |
Thermal Shock Stability (1100 ° C Water Cooling) | Excellent | |||
Creep 1400 ℃ X50h | Excellent | |||
Fused Cast re-sintered corundum mullite brick is an outstanding refractory material with remarkable properties. These bricks are crafted through a specific manufacturing process that combines fusion casting and re-sintering techniques.
The fused cast re-sintered corundum mullite brick offers excellent high-temperature resistance, enabling it to withstand extremely harsh conditions. It has superior mechanical strength, ensuring durability and stability in various industrial applications.
The brick's composition provides good thermal shock resistance, allowing it to handle rapid temperature changes without cracking or deforming. This makes it suitable for use in furnaces, kilns, and other high-temperature equipment where reliability is crucial.
It also exhibits good chemical resistance, protecting against the corrosive effects of many substances. The surface of the brick is smooth and dense, minimizing the penetration of harmful elements.
The manufacturing process results in a product with consistent quality and performance. The bricks are precision-engineered to meet the specific requirements of different industries, ensuring optimal functionality.
Whether in the metallurgical, cement, or glass industries, fused cast re-sintered corundum mullite brick plays a vital role in providing efficient insulation and protection. It helps to maintain the integrity of industrial processes and contributes to enhanced productivity and safety. With its outstanding characteristics and reliable performance, it is a preferred choice for many demanding applications in the refractory field.
Keywords:
china Fused Cast re-sintered corundum mullite brick
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