PRODUCT DESCRIPTION

Fused Magnesia Brick

Fused magnesia bricks are high-end basic refractory materials produced using premium-grade fused magnesia as the primary raw material. Formed under ultra-high pressure and fired at extreme temperatures, their microstructure features large, well-developed periclase (MgO) crystals that are directly bonded together. They typically boast an ultra-high MgO content of over 97% to 98%, with minimal impurity phases at the grain boundaries, making them exceptionally stable in the most punishing thermal environments.

Advantages

Superior Basic Slag Resistance: Large periclase crystal size and minimal impurity phases drastically slow down the penetration and chemical erosion of aggressive basic slags and iron oxides.

Ultra-High Refractoriness Under Load: The strong direct-bonding network allows the bricks to maintain excellent load-bearing capacity and structural integrity at temperatures well exceeding 1700°C.

Enhanced Thermal Shock Resistance: Compared to ordinary sintered magnesia bricks, the fused crystal structure provides better resistance to thermal cycling and minimizes cracking or spalling.

Excellent High-Temperature Volume Stability: Displays near-zero residual shrinkage or expansion during extended high-temperature operations, preventing structural shifting.

High Density and Low Porosity: Features an ultra-dense matrix that physically blocks the infiltration of molten metals, vapors, and gases.

Applications

1. Iron and Steel Industry

· EAF & Converter Linings: Used in the most critical, high-wear zones of Electric Arc Furnaces and oxygen converters, such as the slag line and taphole blocks.

· Secondary Refining Vods/Ladles: Lining material for VOD (Vacuum Oxygen Decarburization) and LF (Ladle Furnace) vessels that process high-purity steel under aggressive slag conditions.

2. Non-Ferrous Metallurgy

· High-Load Converters: Used in the tuyere zones, slag lines, and high-temperature chambers of copper, nickel, and lead smelting furnaces where ordinary refractories fail prematurely.

3. Glass Furnace

· Glass Furnace Regenerators: Ideal for the top checker-work layers and target walls of high-pulverized, heavily loaded glass furnace regenerators that face extreme alkali vapor attacks.

Detailed Storage Guidelines

1. Storage Location

· Dry & Ventilated Indoor Storage: The bricks must be stored in a dry, well-ventilated warehouse.

· Climate Control: Maintain a stable temperature and low humidity in the warehouse to prevent condensation caused by temperature drops.

2. Moisture Protection

· Elevated Storage: Keep the brick pallets on racks or raised platforms. Ensure they are at least 15-20 cm off the ground and 50cm off the wall to avoid rising dampness or flooring moisture.

· Ventilation and Moisture Dissipation: After removing the magnesia bricks from the container, place them in a well-ventilated area for a few days to dissipate any residual moisture absorbed during maritime transit

· Original Packaging Sealed: Keep the original seaworthy packaging (plastic shrink wrap and strapping) intact until the moment of installation. Do not open the wrap early.

3. Handling & Stacking

· First-In, First-Out (FIFO): Implement a FIFO inventory system to minimize the total storage time of the bricks.

   TECHNIQUE DATA