Factory Manufacture Insulating High Alumina Hollow Sphere Brick for Glass Furnace Kiln

Factory Manufacture Insulating High Alumina Hollow Sphere Brick for Glass Furnace Kiln

Hollow Alumina Sphere Bricks  for applications up to 1800°C/ 3270°F, these brick have excellent insulating properties and high hot strengths. Bubble alumina bricks are made with tiny hollow insulating spheres made from high-purity alumina (also called bubble alumina). Alumina does not exhibit high thermal conductivity, and when in the form of hollow spheres, its thermal conductivity is additionally reduced. Both properties made Bubble Alumina brick an excellent insulating material that can withstand exceptionally high temperatures. Typical applications for Bubble alumina bricks include gas or electrically heated kilns and furnaces as well as glass making industries.

Hollow Alumina Sphere Bricks  Features:

1. Low thermal conductivity.
2. High strength and resistance to corrosion.
3. Low heat capacity.
4. Low shrinkage after heavy firing.
5. High insulation.
6. High refractoriness.
7. Low density.
8. Good thermal shock resistance under high temperature.
9. Thermal insulation energy-saving effect is good.

Hollow Alumina Sphere Bricks  Application: 
Alumina hollow ball brick are widely used in metallurgy, refractories, light industry, chemical industry, ceramic, glass, electronic industries. Can be used in cracking furnace, Hot Blast Stove, Shuttle kiln, heating furnace, tunnel kiln, push board kiln, pot furnace, and kinds of electric furnace and electrical kiln lining and so on.

Hollow Alumina Sphere Bricks  Technical Data:

What is the details of our alumina hollow sphere brick?

1.Made by alumina bubble and alumina powder,add other binder,

2.Mixing, drying, forming, firing at the temperature of 1700 °C shuttle kiln.

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