Just What Are Alumina Bubble Bricks?

With the advancements in technology and science, new forms of hollow materials that were crafted from carbon, ceramic and glass are now used widely in different science industries. The refractory products that were constructed out of a hollow sphere represent better high-temperature resistance, high strength, great thermal-shock resistance, and outstanding insulation properties.

Since these material types have lower thermal capacities and a lower bulk density they can increase thermal efficiencies in the high-temperature furnaces, drastically lessen the overall weight of your furnace and also decrease production cycles. This product is used within the lining of the high-temperature furnaces.

The Alumina bubble bricks for sale from Rsrefractoryfirebrick.com are usable at the temperature of 1800℃ for long periods of time. At these higher temperatures they maintain good corrosion resistance and chemical stability. Also, they are able to remain stable in hydrogen atmospheres.

The Alumina raw materials will first be melted inside a power-arc furnace at the temperature of 2200℃. When the melted material is poured out they may be blown using high-pressure air that causes the melted substance to disperse into tiny droplets. During the cooling stages, these droplets form into hollow alumina balls brought on by negative effects of surface tension.

These hollow balls undergo a screening so that you can remove particles, big fragments and fine powder. Any iron will be removed utilizing a magnetic iron. Any broken balls may also be removed by using a “ball selecting” machine. These hollow alumina spheres are then packed in the form of a completed product.

RSrefractoryfirebrick.com/alumina-bubble-bricks are created using a mixture of 30% sintered Alumina powder, 70% Alumina hollow spheres that happen to be bonded using aluminium sulphate. The bricks are molded by using vibration molding inside wooden molds with the use of pressure. Once dried, the green-body is then either light burned or sintered using a high temperature into bricks.