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lapping burnishing brown fused alumina abrasive disc resin special purpose fine processing
Product name: grained sand of brown fused alumina
Specification: 46#
Scope of use
Brown corundum is called industrial teeth : mainly used in refractory materials, grinding wheels, sandblasting.
1 , Used for manufacturing advanced refractory materials, castables, refractory bricks, etc.
2. Sandblasting-abrasive has moderate hardness, high bulk density, no free silica, high specific gravity and good toughness. It is an ideal 'environmental protection 'sandblasting material, which is widely used in aluminum profiles, copper profiles glass, precision molds for washing jeans and other fields.
3.Free grinding-grinding grade abrasive, used in kinescope, optical glass, single crystal silicon, lens, clock glass, crystal glass, jade and other fields of free grinding, is widely used in domestic advanced grinding materials ;
4. Resin abrasive-abrasive has suitable color, good hardness, toughness, suitable particle section type and edge retention. It is applied to resin abrasive and the effect is ideal.
AVERAGE CHEMICAL COMPOSITION(TYPICAL)
| Al2O3 | Fe2O3 | Tio₂ | SiO2 |
| ≥95% | ≤0.3% | ≤0.3% | ≤1.5% |
PHYSICAL PROPERTIES(TYPICAL)
|
Mohs hardness |
Proportion |
Melting point |
Max. Working temperature |
Crystalline form |
| ≥9.0 | ≥3.90g/cm3 | 2250℃ | 1900℃ |
tripartite crystal system |
Composition standard of grit size GB/T 2479-2008
|
Particle size |
max coarse particles |
Coarse particles |
Basic particles
|
Mixed particles |
Meal grain |
|||
| 100% passed the following sieve number | no pass the sieve number | no more than weight % | No pass the sieve number |
no less than weight %
|
no pass the sieve number |
no less than weight %
|
passed the following sieve number most weight 3%
|
|
| 10# | 6 | 8 | 20 | 10 | 45 | 10 12 | 70 | 14 |
| 12# | 7 | 10 | 20 | 12 | 45 | 12 14 | 70 | 16 |
| 14# | 8 | 12 | 20 | 14 | 45 | 14 16 | 70 | 18 |
| 16# | 10 | 14 | 20 | 16 | 45 | 16 18 | 70 | 20 |
| 20# | 12 | 16 | 20 | 18 | 45 | 18 20 | 70 | 25 |
| 22# | 14 | 18 | 20 | 20 | 45 | 20 25 | 65 | 30 |
| 24# | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| 30# | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| 36# | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| 40# | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| 46# | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| 54# | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| 60# | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| 70# | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| 80# | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| 90# | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| 100# | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| 120# | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| 150# | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| 180# | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| 220# | 140 | 200 | 15 | 230 270 | 40 | 230 270 325 | 60 | |
Particle size comparison sheet of brown fused alumina
| grained sand of brown fused alumina | |||
|
Particle size number |
(μm) Particle size range (μm) |
Particle size number |
(μm) Particle size range (μm) |
| 16# | 1190 | 80# | 170 |
| 24# | 710 | 100# | 150 |
| 30# | 590 | 120# | 124 |
| 36# | 480 | 150# | 95 |
| 46# | 350 | 180# | 84 |
| 60# | 250 | ||