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Home/Brown corundum

Brown corundum

Brown corundum, also known as corundum, is a brown artificial corundum made by melting and reducing three kinds of raw materials such as alumina, carbon material and iron filings in an electric arc furnace.

The main chemical composition of brown corundum is Al2O3, its content is 95.00% -97.00%, and it also contains a small amount of Fe, Si, Ti and so on.

Production Process

Raw material sorting → electrolytic smelting → crushing → ferromagnetic separation → screening → physical and chemical inspection → finished product packaging → inventory

Characteristics of brown alumina

Brown corundum is the most basic abrasive, because of its good grinding performance, wide range of application, and low price, it is widely used.

Application

  1. Sand blasting .
  2. Free grinding.
  3. Resin abrasive.
  4. Coated with abrasive.
  5. Hydraulic cutting abrasive.
  6. Refractory materials.

Features

Brown corundum has the advantages of high temperature resistance, corrosion resistance, high hardness, high strength, wear resistance, good crystallinity, and low expansion coefficient.

name

specification

main indicators

density

g / cm3

Application

Exterior

AL2O3Fe2O3SiO2

Brown alumina

First level

≥95≤0.3≤1.5

3.85

Refractory

Brown red particles

Next level

≥90≤1.3≤1.53.85Grinding, polishing

Brown particles

Secondary

≥85≤1.8≤1.5

3.8

Grinding, polishing, sandblasting

Brown gray particles

Lower secondary

≥80

≤2.3≤1.5

3.75

Polishing

Gray particles

Third level

≥70

≤4.3

≤1.5

3.5

FloorGray particles

Brown Corundum Display Video

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