Bata Gelembung Alumina

• Al2O3≥ / %: 90-99
• Kepadatan Curah (g/cm³): 1.3-1.9
• Kekuatan Penghancuran Dingin ≥ / MPa: 6-18
• Koefisien Konduktivitas Termal (1000 ℃) / [W/(m-K)]: 0.9-1.2
• Ukuran Standar: 230 * 114 * 65mm
• Sertifikasi: ISO9001/ISO14001/ISO45001/ISO50001
• Sampel: pengujian sampel tersedia

Deskripsi Bata Gelembung Alumina

Alumina hollow brick is a light-weight insulation material, which is made of alumina hollow balls and corundum powder fired at a high temperature of 1700℃. Alumina hollow bricks are composed of numerous interconnected hollow air cells, which leads to their lightweight characteristics. All the air bubbles are evenly distributed in the brick, forming a porous structure, which not only reduces the density of the brick but also maintains a high strength.

Kerui Alumina Hollow Bricks Technical Data Sheet

Item / Kelas	LQZ-99-1.4	LQZ-99-1.6	LQZ-99-1.8	LQZ-95-1.4	LQZ-95-1.6	LQZ-95-1.8	LQZ-90-1.4	LQZ-90-1.6	LQZ-90-1.8
ω (Al2O3) ≥ / %	99			95			90
ω (SiO2) ≤ / %	0.3			/			/
ω (Fe2O3) ≤ / %	0.2			0.2			0.2
Kepadatan Massal (g/cm³)	1.3-1.5	1.5-1.7	1.7-1.9	1.3~1.5	1.5-1.7	1.7-1.9	1.3-1.5	1.5-1.7	1.7-1.9
Kekuatan Penghancuran Dingin ≥ / MPa	6	10	12	8	12	16	10	14	18
Koefisien Konduktivitas Termal (1000 ℃) / [W / (m-K)]	0.9	1.1	1.2	0.9	1.1	1.2	0.9	1.1	1.2
Perubahan Linear Permanen (1600 ℃ * 3 jam) / %	-0.3~+0.3			-0.3~+0.3			-0.3~+0.3

Advantages of Alumina Hollow Brick

1.Excellent Heat Insulation Performance
2.Extremely High Heat Resistance
3.Saving Energy Consumption
4.Environmental Friendliness

Application Fields of Alumina Hollow Brick

1.Metallurgical industry: refractory lining and insulation layer of smelting furnaces; insulation layer and furnace wall of high-temperature heat treatment furnaces; insulation layer of casting molds;

2.Chemical industry: refractory lining of reactors; insulation of petrochemical plants; insulation of high-temperature pipelines and containers; insulation layer of high-temperature gas separation equipment;

3.Electric power industry: refractory lining and insulation layer of thermal power boilers; insulation and furnace wall of gas turbines; refractory structure and insulation of nuclear power plants;