China Black Fused Alumina Black Aluminum Oxide Black Corundum

Black Fused Alumina
Black Fused Alumina is bauxite, carbon materials, iron filings in the three kinds of raw material through the melting furnace to restore the system obtained brown artificial corundum, and are thus brown corundum. Brown Fused Alumina is the main chemical ingredient AL2O3, its content is 94.5% 1 97%, and the other containing a small amount of Fe, Si, Ti and so on. Corundum because of its high hardnOptical Fiber, Cable & Wire ess, toughness is good, more used as a grinding material, which is one of the most basic abrasive. Applicable to carbon steel, malleable iron and hard bronze etc. Grinding. In addition, in refractory materials, chemical additives, precision casting and anti-slip material also has wider application.
Black Fused Alumina featuresHigh hardness
Strong tenacity
Better bonding abilityEncoder and hydrophiElectronic Instrument licity
Giving less heat
Good self-sharpening
Smooth surface and high finish
Application Area:Bicycles
Sewing-machine
Hard metal tools
Medical apparatus
Timepieces
Glass products
Stone grinding
The material for making abrasive tools: Fiber- reinforced
Cutting wheels, grinding wheeElectronic Tube & Transistor ls, sand cloth, paper and paste.
Item
Indicators
Color
Black
Crystal
Trigonalsystem
Hardness(Mohs)
Auto Repair Equipment & Tools ≥9.0
Meltingpoint(°C)
2050
Themaximumtemperature(°C)
1850
TrueDensity(g/cm3)
≥3.50
Linearexpansioncoefficient(0-1600°C)
7-9