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Brown corundum, like white corundum, 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 the quality of brown fused alumina when we buy it?

In fact, when we buy brown corundum, we can mainly judge the quality of the brown corundum we buy through the characteristics of shape, color and size; in terms of shape and size, good brown corundum lies in the quality of the original minerals of brown corundum, generally Good raw minerals are mostly small spherical particles, very small in size, high in impact resistance, and look smooth and shiny on the surface. 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 transparent and shiny. Such brown corundum has high hardness, good self-sharpening, good toughness, and uses strong magnetic energy absorption. The less substance you suck up, the better. So how to judge it?

1.The brown corundum particles are relatively small, and the color will appear lighter. The brown corundum with large particles will have a darker color. The brown corundum of the same material has a darker and lighter color that is closely related to the size of the entire brown corundum particle. association.

2.The color of brown corundum is usually brown and translucent throughout, and the color of brown corundum with high aluminum content is lighter, which is shiny brown.

3.Under the sunlight, the transparency of brown corundum will be very high. The darker brown corundum 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 brown corundum that is very black and not transparent at all, and do not buy rose red or light brown corundum, those are inferior products, and the loss will be great when used.