How to distinguish between good and bad Brown Fused Alumina
Zhongsen Editor 2025-08-13Brown Fused Alumina is a kind of artificial abrasive, commonly known as emery, which has the characteristics of good grinding performance, high purity, good crystal quality, not easy to break, wide application range and low price. It is suitable for all kinds of common steels, general steels and smeltable irons. It does not explode, pulverize or crack during use. So how do we distinguish between good and bad when buy?
In fact, when we buy brown fused alumina, we can mainly judge the quality of what we buy by the characteristics of shape, color and size; in terms of shape and size, good quality lies in the quality of the original minerals. Generally, good original minerals are mainly Most of the small spherical particles are very small in size, with high impact resistance, and the surface looks smooth and shiny. As far as the color is concerned, it is better to use a deep purple purple, but it should also be seen that it is translucent and shiny. This kind of hardness, good self-sharpening, good toughness, and can be absorbed by strong magnetic absorption. The less material the better. So how to judge exactly?
1. The brown fused alumina particles are relatively small, and the color will be lighter. The color of the larger particles will be darker. The color depth and lightness of the same material are closely related to the size of the entire particle.
2. The color of brown fused alumina is usually brown and translucent, and the color of high aluminum content is lighter, which is shiny brown.
3. Under the sunlight, the transparency of brown fused alumina will be very high, the darker color with a little cyan will have greater hardness, high wear resistance, and high iron content. In addition, it should be noted that do not buy those that are very black and not transparent at all, and do not buy rose red or light-colored products, those are inferior products, and the loss will be great when used.
