PRODUCT DESCRIPTION

Fused Silica Brick

Description

Fused silica bricks are premium-grade acid refractory materials manufactured from high-purity fused silica (SiO₂ > 98.5%) as the primary raw material. Through advanced crushing, shaping, and precise high-temperature firing processes, these bricks exhibit exceptional thermal shock resistance, minimal thermal expansion, and excellent chemical stability. They are widely utilized in glass melting furnaces, coke ovens, and other high-temperature, corrosive industrial environments.

Advantages

l  Superior Thermal Shock Resistance: Can withstand drastic temperature fluctuations without cracking or spalling. Ideal for hot-repair operations where materials are inserted directly into running furnaces.

l  Extremely Low Thermal Expansion: Maintains excellent dimensional stability at high temperatures. Minimizes structural stress and movement within the furnace lining.

l  High Chemical Purity & Corrosion Resistance: Low iron and alkali content prevent contamination of the molten glass batch. Highly resistant to acidic slags and corrosive gases.

l  Low Thermal Conductivity: Provides excellent thermal insulation compared to standard silica bricks. Reduces heat loss and improves furnace efficiency.

Applications

1. Glass Industry

• Hot Repair Materials: Used for hot-repairing of      melting crown and arches, tuckstones, and burner blocks without shutting      down the furnace.

• Feeder Expendables: Used as parts directly      contacting molten glass, such as stirrers, orifice ring, plungers, and      spout.

2. Metallurgical Industry

• Coke Oven Repairs: Used for the rapid hot      repair of coke oven walls and doors.

• Foundry and Casting: Used as lining materials      for high-purity induction furnaces and launders.

3. Other Industries

• Chemical & Ceramic: Used as kiln furniture      and saggers for firing high-purity electronic ceramics.

• Aerospace: Used in high-temperature      testing equipment and thermal protection structures.

   TECHNIQUE DATA