Xintai’s Silicon Nitride Bonded Silicon Carbide Bricks are high-performance refractory bricks engineered for high-temperature and highly corrosive industrial environments. With a strong bond between silicon nitride and silicon carbide, these bricks offer exceptional thermal shock resistance, outstanding mechanical strength, and superior chemical stability. They are ideal for use in blast furnaces, kilns, incinerators, and non-ferrous metal refining units.
Technical Specifications
| Property | Typical Value |
|---|---|
| SiC + Si₃N₄ Content | ≥ 92% |
| Bulk Density | ≥ 2.65 g/cm³ |
| Apparent Porosity | ≤ 15% |
| Cold Crushing Strength | ≥ 150 MPa |
| Modulus of Rupture (1400°C) | ≥ 45 MPa |
| Thermal Conductivity (1000°C) | ≥ 10 W/m·K |
| Maximum Service Temperature | ≥ 1450°C |
| Thermal Shock Resistance (ΔT) | ≥ 25 cycles |
Key Features
Excellent resistance to oxidation and alkali corrosion
Outstanding thermal conductivity and heat load stability
Superior mechanical strength even at elevated temperatures
Low porosity ensures extended service life
Precise dimensional tolerance for easy installation
Typical Applications
Iron and steel industry (e.g., blast furnace lining, taphole area)
Waste incinerators and gasifiers
Petrochemical high-temperature reactors
Non-ferrous metal smelting furnaces
Ceramic and glass kilns
Production Details
Xintai’s Silicon Nitride Bonded Silicon Carbide Bricks are manufactured using high-purity silicon carbide raw materials combined with silicon nitride binders through an advanced nitriding and sintering process. This production method ensures strong chemical bonding and a dense microstructure, which imparts excellent thermal shock resistance, mechanical strength, and corrosion resistance. Strict quality control measures are implemented throughout the forming, drying, and firing stages to guarantee consistent performance and dimensional accuracy. The bricks are carefully inspected before packaging to ensure they meet international standards for refractory materials used in demanding industrial applications.
Packing and Shipping Details
Xintai carefully packages Silicon Nitride Bonded Silicon Carbide Bricks using sturdy wooden pallets or crates with protective cushioning to prevent damage during transit. Each package is securely wrapped and labeled for easy identification. We offer flexible shipping options including sea freight, air freight, and land transport to accommodate customer needs worldwide. Our logistics team coordinates efficient loading and timely delivery to ensure the products arrive safely and on schedule. Custom packaging solutions are also available upon request to meet specific handling requirements.
Frequently Asked Questions (FAQ)
Q1: What industries commonly use Silicon Nitride Bonded Silicon Carbide Bricks?
These bricks are widely used in the steel industry, waste incinerators, non-ferrous metal smelting, kilns, and petrochemical reactors due to their excellent thermal and chemical resistance.
Q2: What is the maximum operating temperature for these bricks?
Xintai’s Silicon Nitride Bonded Silicon Carbide Bricks can operate reliably at temperatures up to 1500ºC.
Q3. Can you provide custom sizes and shapes?
Yes, we offer customization of sizes and shapes according to customer specifications to ensure a perfect fit for your application.
Q4: How does the silicon nitride bonding improve brick performance?
Silicon nitride bonding creates strong chemical and mechanical bonds within the brick, enhancing thermal shock resistance, mechanical strength, and corrosion resistance compared to traditional bricks.
Q5: Are samples available for testing?
Yes, Xintai provides free samples upon request so you can evaluate product quality before placing bulk orders.
