Phosphate Bonded High Alumina Bricks are a high-performance refractory material manufactured using calcined bauxite as the primary aggregate. These bricks are chemically bonded with phosphate, making them ideal for use in high-temperature environments. These non-burnt bricks undergo a drying process and are heat-treated between 400°C to 600°C, ensuring optimal performance and long service life.
These bricks are widely used in rotary kilns, cement kilns, and other high-temperature furnaces due to their excellent thermal shock resistance, high mechanical strength, and superior resistance to chemical erosion.
Physicochemical Parameters
| Item | P | PA | PHR-80 |
|---|---|---|---|
| Al₂O₃ (%) | ≥75 | ≥77 | ≥80 |
| Fe₂O₃ (%) | ≤3.2 | ≤3.2 | ≤2.0 |
| Bulk Density (g/cm³) | 2.65 | 2.7 | 2.8 |
| Cold Crushing Strength (MPa) | ≥60 | ≥65 | ≥60 |
| Refractoriness (°C) | ≥1780 | ≥1780 | ≥1790 |
| Refractoriness under Load (T0.6) (°C) | ≥1300 | ≥1350 | ≥1460 |
| Thermal Conductivity (1000°C) (W/m·K) | ≤1.5 | ≤1.6 | ≤1.6 |
Product Features
- High Alumina Content: With Al₂O₃ content ranging from ≥75% to ≥80%, these bricks offer high strength and thermal stability under extreme conditions.
- Superior Thermal Shock Resistance: Designed to endure rapid temperature fluctuations, these bricks maintain structural integrity even under harsh conditions.
- High Refractoriness: Capable of withstanding temperatures of up to 1790°C, making them ideal for use in high-temperature industrial applications.
- Mechanical Strength: These bricks provide excellent resistance to physical stress, ensuring reliability and durability in demanding environments.
- Corrosion Resistance: The phosphate binder enhances resistance to chemical corrosion, especially in the presence of acidic or basic substances.
Applications
Phosphate Bonded High Alumina Bricks are used in various high-temperature environments, including but not limited to:
- Cement Kilns: Ideal for linings in rotary kilns, providing excellent resistance to heat and wear in all zones, including the pre-heating, transition, and cooling zones.
- Rotary Kilns: Suitable for the harsh conditions of rotary kilns in cement, steel, and other industrial applications requiring durable refractory linings.
- Other High-Temperature Furnaces: Can be used in a variety of high-temperature applications, such as in steel reheating furnaces, soaking pits, and combustion chambers.
Customization Services
We offer a wide range of customization options for our Phosphate Bonded High Alumina Bricks to meet your specific requirements:
- Sizes: Available in standard sizes or custom dimensions based on your furnace or kiln needs.
- Shapes: Custom shapes such as arch bricks, checker bricks, and anchor bricks can be tailored to fit different furnace designs.
- Colors: Custom colors can be provided to match your specific aesthetic or functional needs.
Packing and Shipping Details
- Packing: Our Phosphate Bonded High Alumina Bricks are securely packed using durable and eco-friendly materials. Custom packaging options are available upon request.
- Shipping Methods: Sea, air, or road shipping based on the order size and destination.
- Delivery Time: Domestic orders typically ship within 5-7 business days; international orders may take 7-21 business days.
- Tracking: Tracking information will be provided upon dispatch.
- Customs Fees: Customs duties, taxes, and import fees for international orders are the customer’s responsibility.
- Returns: Defective items can be returned within 7 days of receipt.
About Xintai Refractory
Xintai Refractory is a leading manufacturer specializing in the production of high-quality refractory materials. With over 20 years of experience in the industry, we offer a comprehensive range of products including refractory bricks, insulating bricks, and monolithic refractories. Our products are widely used in industries such as cement, steel, glass, and non-ferrous metals. Known for our commitment to quality and customer satisfaction, we provide reliable, cost-effective solutions for the most demanding high-temperature applications.
