There are many manufacturers of alumina hollow balls in the market. How to choose a good one suitable for yourself among many manufacturers?
As a kind of lightweight refractory material with excellent high temperature resistance and energy saving, alumina hollow ball is usually used in high-temperature kilns and ultra-high temperature insulation fillers. For this purpose, we need to refer to its sodium oxide content. Too high sodium oxide content is easy to cause kiln collapse.
Alumina hollow ball is used to make alumina hollow ball brick. In addition to paying attention to the content of sodium oxide, products with appropriate ball wall thickness should also be selected. The ball wall is too thick, which is not conducive to the isolation of heat energy, but also increases the cost of manufacturers. However, if the ball wall is too thin, its bearing capacity will be affected. Therefore, we require both to take into account, that is, to take into account its support and save the cost of manufacturers.
Alumina hollow ball is used as ordinary castable. It is reasonably selected according to the required ambient temperature. There are two types of ceramic alumina hollow ball and ceramic regenerated alumina hollow ball. For those whose ambient temperature is lower than 1650 ℃, you can try to use ceramic regenerated alumina hollow ball, because it not only meets your environmental needs of higher temperature, but also saves you costs.
