Bubble alumina brick is a type of lightweight refractory brick that is made from high-purity alumina aggregates in combination with a small amount of additives. It is characterized by its unique structure, which consists of numerous sealed spherical pores or bubbles within the brick matrix. These bubbles are formed during the manufacturing process, giving the brick its distinctive lightweight and insulating properties.
High alumina insulation brick is a type of refractory brick that is made primarily from high-purity alumina, typically with an alumina content of 48% to 95%. These bricks are known for their excellent insulating properties, high-temperature resistance, and low thermal conductivity. They are widely used in various industrial applications where thermal insulation is critical.
Lightweight silica insulation brick is a type of refractory brick used for high-temperature insulation applications. It is made from high-purity silica combined with a lightweight aggregate and a binder to create a lightweight and thermally efficient material.
The lightweight aggregate used in the production of silica insulation bricks helps to reduce the density of the material, making it lighter and easier to handle. The aggregate can vary but commonly includes materials such as expanded perlite, vermiculite, or lightweight clay. The choice of aggregate depends on factors such as desired insulation properties and application requirements.