Key Applications of Brown Fused Alumina Micropowder in Mold Manufacturing
Many people may not be familiar with brown fused alumina micropowder. To put it simply, you can think of it as "fine sandpaper" for steel surfaces, except this "sandpaper" exists in powder form. It is made from high-quality bauxite, smelted at high temperatures in an electric arc furnace, and then undergoes a series of processes including fine crushing, sieving, and magnetic separation. It is brownish-red in color and has extremely high hardness—reaching 9 on the Mohs hardness scale, second only to diamond.
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