PRODUCT DESCRIPTION

High alumina insulation brick is a kind of lightweight thermal insulation refractory brick with alumina as the core raw material. Featuring outstanding fire resistance, superior thermal insulation performance and low bulk density, it has been widely applied in various high-temperature industrial scenarios. Sunrise Refractory supplies premium high alumina insulation bricks at competitive factory prices, serving more than 1,000 business partners worldwide.

Sunrise high alumina insulation bricks are high-performance thermal insulation refractory products manufactured from high-purity alumina, refractory clay and other premium raw materials. Alumina serves as the predominant component, with a minimum content of 48%. A small amount of iron oxide, calcium oxide, magnesium oxide and other trace components are also included in the formulation, endowing the bricks with comprehensive and stable overall performance.

Advantages of Sunrise High-Alumina Insulation Bricks:

1.       Excellent Refractoriness:

The refractoriness of Sunrise high alumina insulation bricks ranges from 1580°C to 1750°C, which is significantly higher than that of conventional insulating bricks. This superior high-temperature resistance enables the bricks to operate stably in extreme high-temperature working environments.

2.       Superior Thermal Insulation Performance:

The product features a low thermal conductivity of 0.2–0.55 W/(m·K), lower than that of clay insulation bricks and silica insulation bricks. It can effectively reduce heat loss, delivering excellent energy-saving and thermal insulation effects.

3.       Lightweight & Easy Construction:

With a bulk density of 0.5–1.2 g/cm³, the high alumina insulation bricks are lightweight and easy to transport, carry and construct. They effectively improve construction efficiency and ensure neat and stable project quality.

4.       High Mechanical Strength & Long Service Life:

The bricks have a compressive strength of 1.0–2.0 MPa, offering reliable structural stability and mechanical durability. They can withstand long-term high-temperature operation and subtle mechanical stress, greatly extending the service life of furnace linings.

5.       Stable Chemical Resistance:

Benefiting from the excellent chemical inertness of alumina, the bricks possess great chemical stability. They can effectively resist corrosion from acidic and alkaline slags, flue gas and other corrosive media in industrial production.

Applications:

1.       Metallurgical Industry: Widely used as lining materials for steelmaking furnaces, reheating furnaces, annealing furnaces, sintering furnaces, blast furnaces, converters and other metallurgical thermal equipment.

2.       Chemical Industry: Applied for thermal insulation and inner lining of chemical reactors, synthesis furnaces, decomposition furnaces, coking furnaces and other high-temperature chemical equipment.

3.       Building Materials Industry: Ideal for thermal insulation and fire protection of ceramic kilns, tunnel kilns, roller kilns, shuttle kilns, wall kilns and industrial building structures.

4.       Power Industry: Suitable for thermal insulation and lining construction of power plant boilers, chimneys, turbines and other large power equipment.

   TECHNIQUE DATA