Brown corundum

Brown corundum, also known as emery, is a brown artificial corundum made from bauxite, carbon materials and iron filings by melting and reducing in an electric furnace, so it is named.
In China, brown corundum is mainly produced in Henan, Shanxi and Guizhou provinces.
Scope of use:

Brown corundum is called industrial tooth: it is mainly used in refractory, grinding wheel and sand blasting.   

1. It is used to manufacture high-grade refractory materials, castables, refractory bricks, etc.  

2. Sand blasting -- the abrasive has moderate hardness, high bulk density, no free silica, high specific gravity, and good toughness. It is an ideal "environment-friendly" sand blasting material, widely used in aluminum profiles, copper profile glass, precision molds for washing jeans and other fields;  

3. Free grinding - grinding grade abrasive, which is widely used in the field of free grinding in picture tubes, optical glass, monocrystalline silicon, lenses, clock glass, crystal glass, jade, etc;  

4. Resin abrasives - abrasives have proper color, good hardness, toughness, proper particle section type and blade retention, which are ideal for resin abrasives;      

5. Coated abrasives -- abrasives are the raw materials of sandpaper, gauze and other manufacturers;      

6. Functional filler -- mainly used for automobile brake parts, special tires, special building products, etc. It can be used as wear-resistant materials for building expressway pavement, airplane runway, wharf, parking lot, industrial floor, sports ground, etc;  

7. Filtration medium is a new application field of abrasives. Granular abrasives are used as the bottom medium of the filter bed to purify drinking water or wastewater. It is a new type of water filtration material at home and abroad, especially suitable for nonferrous metal beneficiation: petroleum drilling mud weighting agent:

8. Hydraulic cutting is a new, environment-friendly and safe cutting method, which uses abrasive as cutting medium and relies on high-pressure water jet for basic cutting. It is applied to the cutting of oil (natural gas) pipelines, steel and other parts