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ABRASIVE GRAINS OF CORUNDUM BROWN SIZING F12 – F220
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| A block of Corundum Brown is smelted from calcinated bauxites, cokes and Fe cuts in arc electrical furnace. From that block, lump of I. grade is sorted out, milled on roll crusher, magnetized, annealed at temperature of 1050 oC and sieved according to a required granulometrical composition.
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guaranteed analysis |
| Al2O3 |
95,0 % min. |
| Fe2O3 |
0,3 % max. |
| TiO2 |
3,0 % max. |
| SiO2 |
1,0 % max. |
| granulation | g/dm3 min. | granulation | g/dm3 min. |
| F12 | 2010 | F60 | 1750 |
| F14 | 1980 | F70 | 1730 |
| F16 | 1970 | F80 | 1720 |
| F20 | 1950 | F90 | 1700 |
| F24 | 1900 | F100 | 1680 |
| F30 | 1870 | F120 | 1650 |
| F36 | 1850 | F150 | 1600 |
| F40 | 1830 | F180 | 1580 |
| F46 | 1800 | F220 | 1500 |
| F54 | 1780 | | |
Granulation compound of grains 99 A I b F12 to F 220 has to meet requirements FEPA standard 42-D-1984. After agreement there is also a possibility to supply grainmixtures in framework of technological possibilities.
Mehr auf:
KORUND Benátky s.r.o. |
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| WHAT TO GRIND? |
| Mohs | Material |
| 1 |
talc |
| 2 |
rock-salt |
| 3 |
calcite |
| 4 |
fluorite |
| 5 |
apatite |
| 6 |
feldspar |
| 7 |
flint |
| 8 |
topaz |
| 9 |
corundum |
| 9,5-10 |
silicon carbide |
| 10 |
diamond |
| HARDNESS (MOHS) |
| Material | Hardness |
| Tin |
1,8 |
| Graphite |
1,2 |
| Aluminium |
2,9 |
| Chromium |
9 |
| Cobalt |
5,5 |
| Silicon |
7 |
| Copper |
3 |
| Brass |
3,5-4 |
| Marble |
3-4 |
| Nickel |
3,8 |
| Steel |
5-8,5 |
| Lead |
1,5 |
| Wax 0°C |
0,2 |
| Zinc |
2,5 |
| Gold |
2,5 |
| Iron |
4,5 |
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