The important role of alumina hollow ball in various products

Alumina hollow ball has a low density, high porosity characteristics, its internal hollow structure can effectively reduce the thermal conductivity, significantly enhance the thermal insulation effect of alumina brick.

Advantages and Physical Properties of Alumina Hollow Sphere

Alumina hollow balls have good temperature resistance, high stability after heating, and a simple structure that can effectively reduce the weight of the furnace body. It can also achieve energy-saving effects during use and reduce losses. The wear percentage of alumina hollow balls is low. , the following introduces the advantages and physical characteristics of alumina hollow spheres.

Advantages of lightweight refractory alumina hollow spheres?

1. High operating temperature: up to 1750 degrees or more, good thermal stability. The change rate of the reburning line is small, and it can be used for a longer period of time.

How are high-quality alumina hollow spheres formed?

The formation of alumina hollow spheres is completed in a short period of time (10-30s) by blowing alumina melt under high-pressure air. The ball forming process is actually a rapid cooling and shrinking process. The melting point of alumina is 2050°C, and the temperature suitable for blowing the ball should be 200~300°C higher than the melting point, that is, it needs to be heated to 2200~2300°C.

Preparation method and preparation mechanism of alumina hollow spheres

The aluminum oxide hollow sphere material has a cavity structure inside, and the thickness of the shell layer is at the nanometer or micronano level.