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High-Density Sintered Aluminum Channel Blocks from China Suppliers - Premium Factory Quality Alumina Solutions
Manufacturing Process
1
Raw Material Preparation:High-purity alumina powder and various particle grains size are prepared.
2
Forming:The raw material is formed into the desired shape using techniques such as casting or extrusion.
3
Sintering:The formed blocks are sintered at high temperatures to achieve the required density and mechanical properties.
The Advantages
99 dense alumina channel blocks are no glass pollution, eliminate glass impurity, bubble, ‘Cat-Scratch’ and reducing defects of glass production. The production yield-rate can be highly improved, especially for crystal glass, cosmetic glass, perfume glass, high-grade container glass etc.
1. High Density
Dense alumina has a high density, contributing to its mechanical strength and durability.
2. Thermal Stability
It can withstand high temperatures, making it suitable for high-temperature applications.
3. Wear Resistance
Alumina is highly resistant to wear and abrasion, which is beneficial in harsh environments.
4. Corrosion Resistance
It resists chemical attacks from acids and alkalis, enhancing its longevity in corrosive settings.
5. Electrical Insulation
Alumina is an excellent electrical insulator, making it useful in electrical and electronic applications.
Application
This product is mainly used in the hot end of furnaces such as tableware glass and bottle glass, container glass furnace etc.
| Items | 99 Dense Alumina(Casting) |
| Al2O3% | ≥97.5 |
| SiO2% | ≤0.18 |
| Fe2O3% | ≤0.1 |
| Bulk Density g/cm³ | ≥3.15 |
| Apparent Porosity % | ≤16 |
| Cold Crushing Strength (Mpa) | ≥110 |
| Refractoriness Under Load T0.6/℃ | ≥1700 |
| NOTE:All data above are average test results under standard procedure and are subjected to variation. Result should not be used for specification purpose or creating any contractual obligation. For more information on the safety application or materials, please contact with our sales engineer. | |
Frequently Asked Questions
What are the main manufacturing steps for 99 dense alumina channel blocks?
The manufacturing process consists of three key steps: 1. Raw Material Preparation (preparing high-purity alumina powder and various particle grain sizes); 2. Forming (shaping the material using casting or extrusion); and 3. Sintering (heating at high temperatures to achieve optimal density and strength).
How do these channel blocks help improve glass production yield-rates?
By providing a clean and stable contact surface, 99 dense alumina channel blocks cause no glass pollution. They eliminate glass impurities, bubbles, and "Cat-Scratch" defects, significantly increasing the yield-rate, particularly for crystal, cosmetic, perfume, and high-grade container glass.
What are the primary advantages of 99 dense alumina material?
The material offers high density, excellent thermal stability (withstanding high temperatures), superior wear and abrasion resistance, high chemical corrosion resistance against acids and alkalis, and outstanding electrical insulation.
Where are these casting channel blocks typically applied?
They are primarily used in the hot end of industrial furnaces, including tableware glass furnaces, bottle glass furnaces, and container glass furnaces.
What are the key chemical specifications of the 99 Dense Alumina block?
According to the standard specifications, the block contains a minimum of 97.5% Al2O3, a maximum of 0.18% SiO2, and a maximum of 0.1% Fe2O3, ensuring high purity and robust thermal performance.




