Phosphate-bonded High Alumina Brick

Phosphate Bonded High Alumina Brick for Sale

Fireramo’s phosphate-bonded high alumina bricks are high-performance refractory bricks with 65% to 70% alumina (Al2O3), 20% to 25% silicon dioxide (SiO2), and 2% to 4% phosphorus pentoxide (P2O5), which are made from high-quality high alumina clinker by means of an advanced phosphate chemical bonding process. Fireramo’s phosphate-bonded bricks are made from high-quality high alumina clinker through an advanced chemical bonding process, which gives the bricks a unique structure and superior properties.

Characteristics of Fireramo phosphate bonded high alumina bricks

Strong chemical stability: High alumina content of phosphate bonded high alumina bricks ensures that the bricks have good chemical stability at high temperatures and strong resistance to acidic and alkaline media.

Good thermal shock stability: Phosphate binding system makes the brick body show good thermal shock resistance during thermal expansion and contraction, effectively reducing the risk of cracking.

Moderate strength: Phosphate bonded high alumina bricks have a cold compression strength of ≥70%, with high mechanical strength, able to withstand large stresses in operation and use.

Excellent refractory performance: under 0.2 MPa load, the refractoriness of phosphate-bonded high alumina bricks is ≥1470℃, which is sufficient to cope with the needs of a variety of high-temperature industrial kiln applications.

Outstanding structural characteristics: phosphate-bonded high alumina bricks have a porosity of 22% and a bulk density of ≥2.75 g/cm³, which ensures that the bricks have good thermal insulation properties and at the same time sufficient mechanical strength and refractoriness.

Application of Fireramo phosphate-bonded high alumina bricks

Phosphate-bonded high alumina bricks are widely used in the lining of high-temperature industrial furnaces, such as cement kilns, electric roofs, steel ladles, glass melting kilns, etc. They are particularly suitable for critical areas requiring resistance to high temperatures, thermal shocks, chemical attack and spalling.

Fireramo phosphate bonded high alumina bricks production process

Fireramo adopts selected raw materials of high alumina bauxite, which are crushed, screened and proportionally mixed with phosphate binding agent, and then moulded by semi-dry press, and heat-treated at a temperature of 400℃ to 600℃ to form a stable chemical bond, so as to produce phosphate-bonded high alumina bricks with excellent performance.

Phosphate bonded high alumina bricks Specifications