Brown aluminum oxide abrasive is widely used in components of reaction vessels, pipelines and chemical pumps due to its high hardness, high strength and good wear resistance; it is used as mechanical parts and various grinding tools in the mechanical industry. Wire drawing dies, pencil core mold extrusion nozzles, etc.; making tools, bulletproof materials, mold abrasives, human joints and sealing mold rings.
Brown fused alumina abrasives as thermal insulation materials, such as corundum hollow balls, fiber products and corundum lightweight bricks, have been widely used in the top and wall of high-temperature furnaces, which are not only resistant to high temperatures, but also heat-insulating.
Brown aluminum oxide abrasives due to its high temperature resistance, corrosion resistance, high strength and other properties, sliding nozzles are used to process precious metals, special alloys, ceramics and iron blast furnace linings (walls and tubes), physical and chemical containers, spark plugs, heat-resistant and anti-oxidation coatings, etc.
In terms of color, it is best to distinguish the color of brown molten alumina. It is usually dark purple and purple. Under sunlight, the transparency is high.
It is translucent and shiny, and this brown fused alumina usually has a slightly higher hardness and better wear resistance. High in iron and high in content.
The larger the brown fused alumina particles, the darker the color. Generally, brown aluminum oxide abrasives have good self-sharpening and good toughness. The less material that is strongly magnetically absorbed, the better the quality. The grade and quality of brown corundum abrasives can be identified from the color.
To distinguish the shape and size, good brown aluminum oxide depends on its original mineral quality. Generally, good main minerals are mainly spherical small particles with small particle size, strong impact resistance and smooth and shiny surface.
There are three grades of brown aluminum oxide to distinguish from the content of alumina, and the quality of the first to third grades gradually weakens. The quality of brown corundum mainly depends on the content of AL2O3. The grade of brown fused alumina is AL2O3 content greater than 95%, so it is often called 95th brown fused alumina. The AL2O3 content of the second and third grade brown fused alumina gradually decreases, and the quality also decreases. The larger the brown fused alumina particles, the darker the color. Generally, brown corundum abrasives have good self-sharpening and good toughness. The less material that is strongly magnetically absorbed, the better the quality. The grade and quality of brown corundum abrasives can be identified from the color.
To distinguish the shape and size, good brown aluminum oxide depends on its original mineral quality. Generally, good primary minerals are mainly spherical small particles with small particle size, strong impact resistance and smooth and shiny surface.
There are three grades of brown fused alumina to distinguish from the content of alumina, and the quality of the first to third grades gradually weakens. The quality of brown corundum mainly depends on the content of AL2O3. The grade of brown molten alumina is AL2O3 content greater than 95%, so it is often called 95th brown molten alumina. The AL2O3 content of the second and third grade brown fused alumina gradually decreases, and the quality also decreases.
