Fábrica de tijolos de alumina

Alumina bubble brick has high service temperatures and good thermal insulation performance at high temperatures. They will achieve obvious results in reducing the weight of the furnace body, transformando a estrutura, economizando materiais, e economizando energia.

Technical parameter of alumina bubble brick

Item	Índice
Item	LQZ99-1.4	LQZ99-1.6	LQZ99-1.8
Al₂Ó₃ %	≥99
SiO₂ %	≤0,3
Fé₂Ó₃ %	≤0,2
Densidade aparente g/cm³	1.3~1.5	1.5~1.7	1.7~1.9
Cold Crush Strength MPa	≥6	≥10	≥12
Thermal conductivity W/(m·K) Hot surface 1000℃	≤0.9	≤1.1	≤1,2
Taxa de mudança linear permanente % 1600℃×3h	±0.3

Item	Índice
Item	LQZ95-1.4	LQZ95-1.6	LQZ95-1.8
Al₂Ó₃ %	≥95
Fé₂Ó₃ %	≤0,2
Densidade aparente g/cm³	1.3~1.5	1.5~1.7	1.7~1.9
Normal temperature compressive strength MPa	≥8	≥12	≥16
Condutividade térmica com(m·K) hot face 1000℃	≤0.9	≤1.1	≤1,2
Permanent Linear Change Rate % 1600℃×3h	±0.3

Item	Índice
Item	LQZ90-1.4	LQZ90-1.6	LQZ90-1.8
Al₂Ó₃ %	≥90
Fé₂Ó₃ %	≤0,2
Densidade aparente g/cm³	1.3~1.5	1.5~1.7	1.7~1.9
Normal temperature compressive strength MPa	≥10	≥14	≥18
Condutividade térmica com(m·K) Hot face 1000℃	≤0.9	≤1.1	≤1,2
Permanent Linear Change Rate % 1600℃×3h	±0.3

Alumina hollow ball brick application

The refractoriness of alumina hollow ball bricks can reach over 1750°C, with good thermal stability, a small change rate of the burning line, and durability. It has strong thermal insulation properties and low thermal conductivity. Alumina hollow ball bricks can be used in high-temperature energy-saving inverted flame kilns, fornos de transporte, fornos de fio de molibdênio, fornos de haste de tungstênio, fornos de indução, nitriding furnaces, etc..

Characteristics of alumina hollow ball bricks

High-temperature use: boa estabilidade térmica, até 1750 degrees or above. The change rate of the reburning line is small and the use time is long.
Otimize a estrutura e reduza o peso do forno: Atualmente, high-temperature resistant materials are heavy bricks with a volume density of 2.6-3.0g/cm. Alumina hollow ball bricks only have 1.1~1.5g/cm, and the same one cubic meter m volume, using alumina hollow ball bricks can reduce the weight by 1.1-1.9 tons.
Salvar materiais: In order to achieve the same operating temperature, se tijolos pesados forem usados, the price is equivalent to the price of alumina hollow ball bricks, but a large amount of insulating refractory materials is also required. If you use alumina hollow ball bricks, you can save 1.1-1 per cubic meter. If you use 9 tons of heavy bricks, you can save 80% of refractory insulation materials.
Economia de energia: As esferas ocas de alumina têm propriedades óbvias de isolamento térmico e baixa condutividade térmica. They can play a good thermal insulation role, reduzir a dissipação de calor, e melhorar a eficiência térmica, thereby achieving the purpose of energy saving.