Abrasives black fused aluminium oxide
Black fused alumina, also called black fused aluminium oxide, black aluminum oxide, is a black color artificial corundum for abrasives. It's made of fusion of bauxite and reducing agent in electric arc furnace. Black fused aluminium oxide has certain content of ferro oxide and silicon oxide, which make it looks black. Black fused aluminium oxde has moderate hardness, less heat during abrasives, good strength and can be used for sand blasting, polishing, grinding of stainless steel and other non-metal surfaces. It can also be used for production of grinding wheel and cutting wheels.

Physical and chemical properties

Size#
Al2o3
Sio2
Fe2o3
Tio2
F24-f100
77.00min
11.0min
5.0min
1.5-3.5
F120-f220
75-81
9-12
4-6
2-3


True gravity: ?3.5 g /cm3

Bulk density: 1.65-1.95 kg / m3

Mosh hardness: 8

Color: black

Melting point: 2050 celcius degree

Sizes: f8-f220

Applications of black fused aluminium oxide

Production of grinding wheel, cutting wheel and other abrasive tools
Sand blasting and polishing on aluminium, stainless steel and other metal surfaces
Grinding and polishing on non-metal surfaces like ceramic, plastic, glass, wood, laminate, bamboo etc.
Rust removal, clean and polishing of mold, foundry parts, metal parts, semi-conductors etc.
Surface treatment of electric devices, telecommunication equipments, ship and vessel parts, machinery etc.
Eching, die cut of stone, ceramic, marble, glass, jewery
Pre-coating process of electroplate, coating, teflon, welding materials etc.