Alumina powder is the main raw material of pink fused alumina, with suitable quantity of chromium oxide, etc. It is smelted at high temperature. Its hardness is similar to that of white fused alumina, and its toughness is higher than that of white fused alumina. The abrasive tools made by it have good durability and high finishing. It is suitable for precision grinding of measuring tools, machine spindles, instrument parts, thread workpieces and sample grinding, etc.
Alumina powder is the main raw material of pink fused alumina, with suitable quantity of chromium oxide, etc. It is smelted at high temperature. Its hardness is similar to that of white fused alumina, and its toughness is higher than that of white fused alumina. The abrasive tools made by it have good durability and high finishing. It is suitable for precision grinding of measuring tools, machine spindles, instrument parts, thread workpieces and sample grinding, etc.
|
Grit |
Low Chromium |
|||
|
Al2O3 |
Cr2O3 |
Na2O |
Fe2O3 |
|
|
F12-F80 |
≤98.50 |
0.20-0.45 |
≤0.30 |
0.01-0.05 |
|
F90-F150 |
≤98.50 |
≤0.35 |
||
|
F180-F220 |
≤98.00 |
≤0.40 |
||
|
Grit |
Medium Chromium |
|||
|
Al2O3 |
Cr2O3 |
Na2O |
Fe2O3 |
|
|
F12-F80 |
≤98.20 |
0.45-1.00 |
≤0.3 |
0.01-0.05 |
|
F90-F150 |
≤98.20 |
≤0.35 |
||
|
F180-F220 |
≤97.80 |
≤0.40 |
||
|
Grit |
High Chromium |
|||
|
Al2O3 |
Cr2O3 |
Na2O |
Fe2O3 |
|
|
F12-F80 |
≤97.40 |
1.00-2.00 |
≤0.3 |
0.01-0.05 |
|
F90-F150 |
≤97.00 |
≤0.35 |
||
|
F180-F220 |
≤96.50 |
≤0.40 |
||
|
Basic Minerals |
Crystal Size (um) |
Ture Density (g/cm3) |
Bulk Density (g/cm3) |
Hardness (kg/mm2) |
|
α-Al2O3 |
600-2000 |
≥3.9 |
1.40-1.95 |
2200-2300 |
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