Xintai Refractory’s Alumina Bubble Bricks are high-performance insulation materials made from alumina hollow balls. These advanced bricks are formed by combining high-purity alumina powder with other binders, and they undergo high-temperature firing at 1750°C. The result is a lightweight and energy-efficient brick with superior thermal insulation properties.
These Alumina Bubble Bricks are ideal for high-temperature applications that require excellent thermal resistance, lightweight structures, and energy savings. With maximum service temperatures reaching up to 1800°C, these bricks are the perfect solution for industries that operate in extreme conditions.
Physicochemical Parameters
| Item/Grade | 85% Al₂O₃ | 90% Al₂O₃ | 99% Al₂O₃ |
|---|---|---|---|
| Max Service Temperature | 1680°C | 1700°C | 1800°C |
| Al₂O₃ Content | ≥85% | ≥90% | ≥99% |
| SiO₂ Content | ≤13% | ≤8% | ≤0.2% |
| Fe₂O₃ Content | ≤0.2% | ≤0.2% | ≤0.2% |
| Bulk Density | 1.4-1.7 g/cm³ | 1.5-1.7 g/cm³ | 1.7-1.9 g/cm³ |
| Cold Crushing Strength | ≥12 MPa | ≥10 MPa | ≥9 MPa |
| Thermal Conductivity (1800°C) | ≤0.8 W/(m·K) | ≤1.3 W/(m·K) | ≤1.5 W/(m·K) |
| Reheating Linear Change (1600°C x 3h) | ±0.3% | ±0.3% | ±0.3% |
Product Features
- High Service Temperature: Capable of withstanding temperatures up to 1800°C, making them suitable for the most demanding industrial applications.
- Low Bulk Density: With a density range of 1.4-1.7 g/cm³, these bricks are lightweight, helping reduce the overall weight of kilns and furnaces, and making them easier to handle and install.
- Superior Thermal Insulation: The alumina hollow balls inside the bricks provide exceptional insulation, which significantly reduces heat transfer, minimizing energy loss and improving energy efficiency by up to 30%.
- Thermal Shock Resistance: These bricks are resistant to rapid temperature fluctuations, making them perfect for high-temperature environments prone to thermal shock.
- Low Thermal Conductivity: With a thermal conductivity ranging from 0.9-1.2 W/(m·K), these bricks help to reduce heat dissipation and maintain consistent internal temperatures, saving on energy costs.
- Corrosion Resistance: Alumina Bubble Bricks offer excellent stability and durability in harsh chemical environments, such as acidic and alkaline conditions.
Applications
Xintai Alumina Bubble Bricks are widely used in a variety of high-temperature industrial applications, including:
- Steel & Metallurgical Industries:
- Ladles, tundishes, blast furnaces, steelmaking furnaces, and molten iron transport equipment.
- Refractory furnaces, coke ovens, reheating furnaces, and induction kilns.
- Petrochemical Industry:
- Gasifiers, cracking units, reactors, carbon black reaction furnaces, and catalyst carriers.
- Ceramics & Cement Industries:
- Ceramic kilns, ceramic storage chambers, and cement kilns.
- Glass Industry:
- Glass melting furnaces, glass storage chambers.
- Environmental Industry:
Customization Services
At Xintai Refractory, we understand that each industrial application has unique requirements. Therefore, we offer customization options to ensure that our Alumina Bubble Bricks meet your specific needs.
- Custom Sizes: We provide alumina bubble bricks in a variety of sizes. If the standard dimensions do not meet your requirements, our team can create custom sizes to fit your furnace or kiln perfectly.
- Special Shapes: Whether you need arch bricks, anchor bricks, or complex geometries, we can manufacture custom shapes based on your specifications.
- Performance Adjustments: If you require specific physical properties like thermal conductivity, strength, or density adjustments, we can modify the material to meet your exact operational needs.
Packing and Shipping Details
At Xintai Refractory, we prioritize safe and timely delivery of our Alumina Bubble Bricks to ensure they arrive in perfect condition.
- Packaging Material: We use durable, eco-friendly packaging materials to protect the bricks during transit. For bulk orders, we palletize the products to make them easier to handle.
- Bulk Orders: Larger orders are securely packed and shipped using robust packaging solutions to ensure the bricks are well-protected.
- Shipping Logistics: Xintai Refractory works with reliable international logistics companies to ensure that your order reaches you on time. We offer synchronized shipping information so you can track your order throughout the delivery process.
- Delivery Time: Orders are typically shipped within 15-30 working days, depending on the size of the order and the customization requirements.
About Xintai Refractory
Xintai Refractory is a leading manufacturer of high-performance refractory products, specializing in Alumina Bubble Bricks, mullite bricks, castables, and other high-temperature materials. With over 20 years of industry experience, we are a trusted supplier to steel, cement, glass, petrochemical, and ceramics industries globally.
Ready to explore the benefits of Xintai Refractory’s Alumina Bubble Bricks? Reach out to us today for a free consultation, customized quote, or to order samples for your high-temperature projects.
Our team is eager to assist you with tailored solutions that meet your needs and help you optimize energy efficiency and reduce operational costs.
