Brown Aluminium Oxide

Brown Aluminium Oxides belongs to the group of brown electro-corundum. They are produced by melting with high temperature in electric arc as as reduced melt from calcareous bauxite. It does not contain normal corund iron. This product has brown colour and high resistance. Its structure is high hardness and at the same time can be able to resist high pressure. They are resistant against abrasion. As used Brown Aluminium oxide in wet and dry blasting applications, also are common used in abrasive stone and abrasive production for grinding.

Brown Fused Aluminium Oxide Application Fields

  • Used as multi-purpose blasting material
  • Used as emery cloth and polishing materials
  • Used in manufacturing of ceramic sandpaper discs and materials
  • Used in protection against erosion and fire- resistant products
  • Cleaning of cylinder covers, valves, pistons in the automotive industry and turbine blades in the aircraft industry
  • Preparing and cleaning of surface before metallization, coating, welding and painting
  • Removing paint, dust and rust
  • Dulling of metal and non-metal materials
  • In pipe and pipe lines
  • In glass and glass decoration works
  • Surface roughening processes before Teflon and coating
  • Paint removal and mould cleaning application of all metal and non-metal surfaces
  • In manufacturing of stone marble, granite cutting, cutter abrasive stone
  • Used commonly in various areas such as emery and refractory

Blasting System

  • Pressure blasting systems
  • Suction (vacuum) blasting systems

Al2O3

Fe2O3

SiO2

TiO2

CaO

MgO

› 95,0 %

‹ 0,30 %

‹ 1,20 %

2,0-3,0 %

‹ 0,50 %

‹ 0,50 %

Chemical Structure of Aluminium Oxide for Blasting

Al2O3

Fe2O3

SiO2

TiO2

CaO

MgO

› 90,0 %

‹ 2,5 %

‹ 4,0 %

2,5 – 5,0 %

‹ 1,0 %

‹ 1,0 %

Chemical Structure of Aluminium Oxide for abrasives for grinding and abrasive stone
Hardness: 9 Mohs
Particle Structure: Angular
Melting Point: 19500 C
Specific Weight (Density): 3,90 – 4,10 gr / cm3 = 3,90 – 4,10 kg / dm3
Specific Density: 1,50 – 2,10 gr / cm3 = 1,50 – 2,10 kg / dm3

GENERAL PARTICLES

FEPA

 

Size Intervals

F12

=

1400

2000

µm

F14

=

1180

1700

µm

F16

=

1000

1400

µm

F20

=

850

1180

µm

F24

=

600

850

µm

F30

=

500

710

µm

F36

=

425

600

µm

F40

=

355

500

µm

F46

=

300

425

µm

F54

=

250

355

µm

F60

=

212

300

µm

F70

=

180

250

µm

F80

=

150

212

µm

F90

=

125

180

µm

F100

=

106

150

µm

F120

=

90

125

µm

F150

=

63

106

µm

F180

=

63

90

µm

F220

=

53

75

µm