Factors affecting the Toughness of Brown Fused Alumina
Zhongsen Editor 2025-05-27When it comes to brown fused alumina, people always think of their hardness and alumina content first, but often overlook the toughness of brown fused alumina. For abrasives, toughness is also a very important attribute. So what are the factors that affect the toughness of brown fused alumina?
The Effect of Toughness on Brown fused alumina:
If brown fused alumina has a certain degree of toughness, it will ensure its own service life. Brown fused alumina will be subjected to certain impacts and vibrations during the processing, and having toughness can allow it to absorb the huge energy brought about by impacts and vibrations, thereby ensuring that the abrasive is not damaged and can be used twice or even multiple times.
At the same time, toughness also has a significant impact on the self sharpening of brown fused alumina. The stronger the toughness, the less likely brown fused alumina is to fracture, but it is prone to passivation and a decrease in grinding force. The two functions are mutually exclusive. Of course, there is also a metric for the toughness of brown fused alumina, which cannot be infinitely extended. Due to the contradictory properties of brown fused alumina toughness and self sharpening, it is necessary to determine the balance between toughness and self sharpening based on one's own needs.
Factors related to the toughness of brown fused alumina:
1. Generally speaking, the lower the aluminum content, the poorer the toughness. But if it is understood that the higher the aluminum content, the better the toughness, then it can be considered that the higher the aluminum content of white fused alumina, why its toughness is worse, this is not true, so this point is only limited to brown fused alumina.
2. Carbon content: The lower the carbon content of brown fused alumina, the better its toughness. Generally, low-carbon brown fused alumina has better toughness.
3. Whether it has undergone high-temperature firing or not, the high-temperature fired brown fused alumina not only removes a lot of carbon, but also removes a lot of magnetic substances, so the toughness of the high-temperature fired brown fused alumins is very good.
