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High-Density Alumina Forehearth Channel Block - China Suppliers and Factory for Industrial Applications
Manufacturing Process
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1
Raw Material PreparationHigh-purity alumina powder and various particle grains size are prepared.
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2
FormingThe raw material is formed into the desired shape using techniques such as casting or extrusion.
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3
SinteringThe 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.
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1. High Density: Dense alumina has a high density, contributing to its mechanical strength and durability.
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2. Thermal Stability: It can withstand high temperatures, making it suitable for high-temperature applications.
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3. Wear Resistance: Alumina is highly resistant to wear and abrasion, which is beneficial in harsh environments.
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4. Corrosion Resistance: It resists chemical attacks from acids and alkalis, enhancing its longevity in corrosive settings.
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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 is the manufacturing process of 99% Alumina Casting Channel Blocks?
The process consists of three main steps: Raw Material Preparation (preparing high-purity alumina powder and various particle sizes), Forming (shaping the material using casting or extrusion), and Sintering (firing at high temperatures to achieve the required density and mechanical properties).
What are the main advantages of 99 dense alumina channel blocks?
Key advantages include high density for mechanical strength, excellent thermal stability under high temperatures, high wear and abrasion resistance, superior corrosion resistance to acids/alkalis, and exceptional electrical insulation.
How do dense alumina channel blocks improve glass production quality?
By preventing glass pollution, they eliminate glass impurities, bubbles, and "Cat-Scratch" defects. This significantly improves the production yield-rate, particularly for crystal glass, cosmetic glass, perfume glass, and high-grade container glass.
What are the key technical specifications of 99 Dense Alumina (Casting)?
It contains ≥97.5% Al2O3, ≤0.18% SiO2, and ≤0.1% Fe2O3. It features a bulk density of ≥3.15 g/cm³, apparent porosity of ≤16%, cold crushing strength of ≥110 Mpa, and refractoriness under load of ≥1700℃.
Where are these casting channel blocks mainly applied?
They are primarily used in the hot end of glass furnaces, including tableware glass furnaces, bottle glass furnaces, and container glass furnaces.