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Pink/Ruby Fused Alumina is obtained by adding chromium oxide to high purity aluminum oxide during the fusion process.
Chemical Composition
Pink Fused Alumina(Low Chromium)
Size |
Al2O3（%） |
Cr2O3（%） |
Na2O（%） |
Fe2O3（%） |
|
F012 F014 F016 F020 F022 F024 F030 F036 F040 F046 F054 F060 F070 F080 |
≥98.5 |
0.2-0.45 |
≤0.3 |
0.01-0.05 |
F090 F100 F120 F150 |
≥98.5 |
0.2-0.45 |
≤0.35 |
0.01-0.05 |
F180 F220 |
≥98.0 |
0.2-0.45 |
≤0.40 |
0.01-0.05 |
Pink Fused Alumina(Medium Chromium)
Size |
Al2O3（%） |
Cr2O3（%） |
Na2O（%） |
Fe2O3（%） |
|
F012 F014 F016 F020 F022 F024 F030 F036 F040 F046 F054 F060 F070 F080 |
≥98.2 |
0.45-1.00 |
≤0.30 |
0.01-0.05 |
F090 F100 F120 F150 |
≥98.2 |
0.45-1.00 |
≤0.35 |
0.01-0.05 |
F180 F220 |
≥97.8 |
0.45-1.00 |
≤0.40 |
0.01-0.05 |
Ruby Fused Alumina
Size |
Al2O3（%） |
Cr2O3（%） |
Na2O（%） |
Fe2O3（%） |
|
F012 F014 F016 F020 F022 F024 F030 F036 F040 F046 F054 F060 F070 F080 |
≥97.4 |
1.00-2.00 |
≤0.30 |
0.01-0.05 |
F090 F100 F120 F150 |
≥97.0 |
1.00-2.00 |
≤0.35 |
0.01-0.05 |
F180 F220 |
≥96.5 |
1.00-2.00 |
≤0.40 |
0.01-0.05 |
Physical Properties
Basic minerals |
α-Al2O3 |
Crystal size μm |
600-2000 |
True density g/cm3 |
≥3.90 |
Bulk density g/ cm3 |
1.40-1.91 |
Knoop hardness kg/mm2 |
2200-2300 |
Main Applications:
---For the surface treatment of pink molten alumina: metal oxide, carbide black skin, metal or non-metal surface rust removal, such as gravity die casting mold, rubber mold oxidation or free agent removal, ceramic surface black spot, in addition to uranium, paint rebirth.
---Beautification treatment: all kinds of gold, gold ornaments, precious metal products of extinction or fog surface treatment, crystal, glass, corrugated, acrylic and other non-metallic fog surface treatment, can make the surface of processing into metallic luster. ---Used for etching and processing: jade, crystal, agate, semi-precious stones, seals, elegant stone, antiques, marble tombstones, ceramics, wood, bamboo, etc.
---Precision bond grinding tools, such as ultra-thin cutting disc, cutting wheel, grinding wheel.
---Ceramic grinding wheels such as crankshaft grinding wheel, bowl grinding wheel, cup grinding wheel, installation point, ceramic grinding tools, etc.
---Coat grinding tools, such as sandpaper and polishing wheels.
---High quality firebricks.
Available sizes
Fepa |
F012 F014 F016 F020 F022 F024 F030 F036 F040 F046 F054 F060 F070 F080 F090 F100 F120 F150 F180 F220 |
JIS |
#12 #14 #16 #20 #24 #30 #36 #40 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 |
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