Monocrystalline Aluminum Oxide Abrasive Grain F36 F46 F54
Monocrystalline Aluminum Oxide is the product of first-class Al2O3 and various assistant materials after fusing in 3000KVA tilting furnace. During fusing, the single crystal aluminum oxide (SSA) of 1-2μm crystal structure comes into being directly. Unique fine chipped microcrystals overlap and form the well-developed single crystals. SSA has good toughness, excellent self-sharpening, high grinding rate.
Features:
1.Number of single crystals is around 95%, which is 50% higher than the original one(the original one's is about 65%).
2.The compressive strength exceeds 26N, toughness is as much as 90.5%, which is 25% higher than original one's.
3.Al2O3 is above 99.4% and its impurity is lower than original one's.
4.With multi-layer grain, SSA can create lots of cutting sides continually. So the surface of grinded workpiece can reach the same cleanliness and the service life of workpiece is improved.
5.SSA can be combined with all kinds of bonding agent. It can be used in vitrified, resin-bonded, rubber-bonded wheels and abrasive belts for weight grinding and polishing stainless steel.
6.SSA is equivalent to 25% zirconia alumina and very similar with ceramic (SG) abrasive materials.
7.Products match the FEPA standard, we can offer F grade sands for making grinding wheels and P grade sands for making coated abrasives.
Mono-crystalline Aluminum Oxide chemical & physical properties
|
Physical Properties |
|
|
Hardness: micro |
21600-22600kg/mm3 |
Hardness: Mohs |
9.0 min |
Specific Gravity |
3.99 g/cm3 |
Bulk Density |
1.75-2.05g/cm3 |
Particle Shape |
Blocky, Sharp |
Color |
Blue |
|
Chemical compositions[%] |
|
Al2O3 |
99.40 |
SiO2 |
0.10 |
Na2O |
0.03 |
Fe2O3 |
0.04 |
TiO2 |
0.28 |
CaO |
0.08 |
MgO |
0.03 |
Applications
Bonded abrasive tool
Coated abrasive tool
Reusable abrasive
Grinding,lapping & polishing medium
Resin/Ceramic grinding wheels & grinding media
Typical Size
|
Grit designation |
Mean diameter in um |
|
F16 |
1230 |
|
F20 |
1040 |
|
F22 |
885 |
|
F24 |
745 |
|
F30 |
625 |
|
F36 |
525 |
|
F40 |
438 |
|
F46 |
370 |
|
F54 |
310 |
|
F60 |
260 |
|
F70 |
218 |
|
F80 |
185 |
|
F90 |
154 |
|
F100 |
129 |
|
F120 |
109 |
|
F150 |
82 |
|
F180 |
69 |
|
F220 |
58 |
