Brown Alumina

Introduction
Brown alumina oxide is made by melting high quality iron oxide, bauxite and anthracite with an electric arc at temperatures above 2000 degrees Celsius. It is crushed and shaped by an autogenous mill, removed from iron by magnetic separation, and screened to various particle sizes. Its texture is dense, hardness is high and particles are spherical. It is suitable for the manufacture of ceramic and resin high solid abrasives, as well as grinding, polishing, sandblasting and precision casting. It can also be used in the manufacture of high-grade refractory materials.

Applications
1, sandblasting - abrasive hardness moderate, high density, no free silica, than severe, good resistance, is the aspiration of the "environmental" type of sandblasting materials, widely used in aluminum profiles, copper profiles, glass, washed denim molds and other fields;

2,Resin abrasives - abrasives with suitable color, good hardness, resistance, suitable particle cross-section type and edge adherence, applied to resin abrasives, the effect is aspiring;

3, Functional filler - the primary use of car brake parts, special tires, special construction products and other collars can be used as the construction of highway pavement. Aircraft runway. Wharf. Parking lot. Industrial flooring. Wear-resistant materials such as sports venues;

4, Filtration media - is a new type of abrasive applications, the choice of granular abrasive as the bottom medium of the filter bed, purification of drinking water or wastewater, is a new type of water filtration materials at home and abroad, especially suitable for non-ferrous metal beneficiation: oil drilling mud exacerbating agent:

5,Hydraulic cutting--It is to use abrasive as cutting medium, relying on high-pressure hydraulic jets for bottom cutting, applied to oil (natural gas) pipeline, steel and other parts of the cutting, it is a new style, environmental protection, safe cutting methods.

Performances
1. High temperature and corrosion resistance. Used for practicing rare precious metals, special alloys, ceramics, lining of ironmaking blast furnace (wall and tube); physical and chemical vessels, spark plugs, heat-resistant and oxidation-resistant coating.
2. High hardness, good abrasion resistance, high strength. In the chemical system, used as a variety of reaction vessels and pipes, chemical pump parts; do mechanical parts, a variety of molds, such as wire drawing mold, extruded pencil core mold mouth.
3. Corundum thermal insulation materials, such as corundum lightweight bricks, corundum hollow ball and fiber products, widely used in a variety of high-temperature furnace walls and roofs, both high-temperature resistance and thermal insulation.

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