Compared with brown fused alumina, black fused alumina does not appear much, but this does not mean that black fused alumina is useless. There is a disconnected relationship between brown fused alumina and black fused alumina. Many people are a little confused about this. So what is the relationship between the two?

 

We know that due to the relationship between raw materials and smelting process, the content of alumina is different in brown fused alumina. According to the different content, brown fused alumina is divided into three grades: one, two and three. Among them, the content of alumina in the third-grade brown fused alumina is low, so the impurities in it are also drunk. The color is different from the brown of the general brown fused alumina, but a black color, so the third-grade brown fused alumina is also called Black corundum, of course, its essence is still brown corundum.

 

Although the essence is brown fused alumina, there is still a big difference between black fused alumina and brown fused alumina:

1. The hardness of brown corundum is greater than that of black corundum, so the grinding force is also stronger than that of black corundum;

2. The high temperature resistance of brown corundum is stronger than that of black corundum, so brown corundum can be used as a refractory material, but black corundum cannot;

3. In the smelting process, the two methods are the same, but the black corundum consumes a third less electricity.

 

4. In terms of use, brown fused alumina has a wide range of uses, which is determined by its performance. Black fused alumina is obviously inferior to brown fused alumina in many aspects. Therefore, there are many new features in its uses, and it only affects some specific applications. user.

Now, there are probably so many connections and differences between brown fused alumina and black fused alumina!