Brown Aluminium Oxide
Short Description:
FEATURES Brown aluminium oxide is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials. Grit size :12#-220#; Micropowder: 240#-1200#. Character 1...
FEATURES
Brown aluminium oxide is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials.
Grit size :12#-220#;
Micropowder: 240#-1200#.
Character
1. AL2O3 95% SIO2 1.5% ;
2. Fe2O3 0.3% TIO2 3.0% ;
3. Hardness(mohs) 9 ;
4. Ture density 3.9 ;
5. Magnetic material content 0.050%.
TECHNICAL DATA
|
Purpose |
Specification |
Chemical Composition(%) |
Magnetic material content(%)max |
||||
|
Abrasives grade |
Al2O3min |
Fe2O3max |
SiO2max |
TiO2max |
|||
|
grain |
12-80 |
95 |
0.3 |
1.5 |
3.0 |
0.05 |
|
|
90-150 |
94 |
0.3 |
1.5 |
3.0 |
0.03 |
||
|
180-220 |
93 |
0.3 |
1.5 |
3.5 |
0.02 |
||
|
micropowder |
240-4000 |
92.5 |
0.5 |
1.8 |
4.0 |
— |
|
|
Refractory grade |
Group Size |
0-1mm 1-3mm 3-5mm 5-8mm |
94.5 |
0.3 |
1.5 |
3.0 |
— |
|
Fine Powder |
-180mesh -200mesh -240mesh -320mesh |
93.5 |
0.5 |
1.5 |
3.5 |
— |
|
|
color |
Dark brown |
||||||
|
Hardness(mohs) |
9.0 |
||||||
|
Melting point(°C) |
2250 |
||||||
|
Maximum service temperature(°C) |
1900 |
||||||
|
Ture density(g/cm3) |
3.9 |
||||||
|
Crystal form |
Trigonal crystal system |
||||||
Product usage
1) Abrasive: Produce ceramic gring wheel, resinoid gringding wheel, Grinding stone, Gringing block, sand paper, sand cloth, sand belt, polish wax, abrasive paste, coating etc..
2) Refractory material: Mainly used for abrasion and high temperature resiatant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc..
3) Sandblasting abrasive: Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin etc..
4) Abrasion resistance ground: Mainly used for non-slip of airport and road, chenmical factory
board paving.
5) Precision casting: Investment casting technics of stainless steel and aluminium casting in coating.
Application
1. it is suitable for grinding high-speed,high carbon steel
2.high-grade refractory materials
3.abrasives tool
4.grinding and polishing
5.ceramics
6.LED
7.sandblasting
8.aviation
