Tap Hole Brick

Tap hole brick is made by adopting high purity fused magnesite and graphite as principal raw material, use unique antioxidant and resin as binding agent, formed by isostatic compaction. Tap hole brick has good oxidation resistance, high strength, good erosion resistance and integrity, easy to be changed, low service life, is an ideal material for tap hole of large and middle sized converter.

Electric furnace taphole bricks are specialized refractory components designed specifically for use in electric arc furnaces (EAFs). These bricks are positioned at the taphole of the EAF, which is a small opening through which molten metal is tapped or released from the furnace. The taphole bricks play a critical role in maintaining the integrity of the furnace lining and ensuring the safe and efficient tapping of molten metal.

Key characteristics of electric furnace taphole bricks include:

1.Heat Resistance: Electric furnace taphole bricks are exposed to high temperatures generated inside the EAF, typically exceeding 1600°C (2912°F). Therefore, they are made of refractory materials with high heat resistance to withstand these extreme temperatures without softening, melting, or deteriorating.
2.Refractoriness: Taphole bricks for electric furnaces have high refractoriness, allowing them to maintain their structural integrity and performance at elevated temperatures.
3.Chemical Stability: These bricks are chemically stable and resistant to the corrosive effects of molten metal, slag, and other furnace materials. This ensures that the bricks maintain their integrity and sealing properties even when in contact with aggressive furnace environments.
4.Mechanical Strength: Electric furnace taphole bricks must have sufficient mechanical strength to withstand the forces and pressures exerted on them during tapping operations. They must be able to resist cracking, spalling, and deformation under these conditions.
5.Thermal Insulation: Taphole bricks provide thermal insulation to help minimize heat loss from the furnace through the taphole. This helps maintain the temperature inside the furnace and improve energy efficiency.
6.Sealing Properties: Taphole bricks for electric furnaces are designed to form a tight seal when inserted into the taphole, preventing the escape of molten metal from the furnace. The bricks must be able to maintain this seal throughout the tapping process to ensure safe and efficient operation.
Electric furnace taphole bricks are typically made of high-quality refractory materials such as high alumina, magnesia, or magnesia-carbon compositions, depending on the specific requirements of the furnace and the operating conditions. They are carefully designed and manufactured to ensure reliable performance and longevity in demanding EAF applications. Proper selection and installation of taphole bricks are essential for the safe and efficient operation of electric arc furnaces.