Black Corundum is a new type abrasives material which features lower Al2O3 and certain grade of Fe2O3.And it has characteristics of moderate hardness,high toughness,high temperature resistance,and stable thermal stability.
Suitable for polishing metals, sandblasting and making abrasives tools.
It’s also the right material for making abrasive tools: Fiber-reinforced cutting wheels, grinding wheels, sand cloth, paper and paste and so on.
Specifications of the sandblasting black corundum:
|Commonly used specification||Period of sand: 0-1, 1-3, 3-5, 5-8 (mm)Particle size of sand: FEPA Standard16,20,24,30,36,46,60,80,100,120,150,180,200,320. (mesh)|
|proportion of appearance||3.5g/cm3 Black granular.|
|raw materials||The bauxite in electric arc furnace smelting and become a kind of is given priority to with alpha AL2O3 and spinel mineral phase – colored crystals.|
|production process||Raw material sorting-electrolytic refining – crushing – in addition to the iron magnetic separation-screening-physical and chemical inspection-finished product packaging-warehousing|
|performance feature||Basic particle concentration, low linear expansion coefficient, good toughness, high grinding ratio.|
|Use||Stainless steel, metal, glass, wood products sand blasting, polishing, grinding wheel, cutting slices, sandpaper.|
|indicators||AL2O3 content is 85%, SiO2 content 5-8%, Fe2O3 content of 6-9%, content of TiO2 2-4%, true density of 3.5 g/cm after, the highest melting point temperature 1850 , 2050 1600 when the linear expansion coefficient of 7-9.|
● For free grinding, such as glass industry
● For non-slip of airport and road, chemical factory board paving
● For produce ceramic grinding wheel, resinoid grinding wheel, grinding stone,
● For free grinding, such as coarse grinding before electroplating products.
● For polishing and sandblasting of stainless steel, fabricated metal products.
● For investment casting technics of stainless steel and aluminum casting in coating.
● For sand paper, sand cloth, sand belt, Polish wax, abrasive paste, coating etc…
● For abrasion and high temperature resistant in steel metallurgy, various industrial stoves
● For various material workpieces to decontaminate, prevent corrosion, remove oxide skin
|pvc bags||paper bags||jumbo bags||jumbo bags||pvc bag+pallet||paper bag+pallet|
|25kg net||25kg net||1000kg||1500kg||1000kg||1000kg|
Other package also could be supplied as required.
Good quality black corundum with competitive price [USD350~500/Ton FOB Tianjin] from China manufacturer.Black Fused Alumina Tags:Black Corundum