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Blue ceramic alumina granule abrasive material BCA F36 F46 F54

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Product Details

Product Description

Product Description
Blue ceramic alumina granule abrasive material BCA F36 F46 F54
Introduction of Blue ceramic alumina granule abrasive material BCA F36 F46 F54
Sol-Gel Alumina abrasive is a new type abrasive grain totally different from traditional fused alumina. Sol-Gel is also called ceramic alumina grain,it is made by sol-gel process.
α-Al2O3 micro-crystal always added as seed into the raw mixed materials of Al2O3 H2O micropowder and water. By doing so,crystal will get more compact when calcined to get solid sol-gel grains. The calcining and sintering process are very important to make sol-gel crystal get small α-Al2O3 crystal size.
The features of Sol-Gel Alumina Ceramic Alumina grain F120 F150 F180:
1. Small crystal size about 100-150nm, which is even much smaller than zirconia alumina. And it’s hundredths of the size of normal fused alumina grains.So it will make abrasive wheels increase lifetime by several times than ordinary wheels.
2. Excellent self-sharpening performance. The sol-gel grain will get new grinding edges after grinding. The edges are get from the single grain crystal instead of off a whole crystal. That makes the grain much sharper than normal fused alumina.
3. The microscopic hardness of sol-gel alumina is about 1900-2400 kgs/cm2,which is higher than zirconia alumina. Thus,sol-gel alumina can make grinding and cutting easier for special hard metal such as Nickel chromium alloy and nickel titanium alloy.
4. The roughness is double of normal fused alumina,and even higher than zirconia alumina.
5. Low temperature grinding is another significant property of Sol-gel alumina abrasive grain. That will avoid much heat during grinding and cutting, so it won’t get hurt of workpiece surface.
6. Small size grinding edges and sharp grinding can avoid tiny crackle on workpiece.
Physical propertiesof Blue ceramic alumina granule abrasive material BCA F36 F46 F54:
Product Name
SG Blue Ceramic Alumina Abrasive
Method
Sol-Gel
True Density
≥3.90 g/cm³
Hv Hardness
2100-2200(khf/mm³)
Color
Blue
Crystal size
50-150nm
Roughness
65%

Chemical composition ofSol-gel alumina abrasive grain
AL2O3
94-96%
Y2O3
1-2%
La2O3+NdO2
2-3%

Applications of Sol-gel alumina abrasive grain:
Sol-gel alumina abrasive grain always mixed with other abrasive grains to make abrasive tools.
1. Diamondcuttingwheel.
2. Diamondvitrified gear grinding wheel.
3. High level resin boned grinding wheel.
4. High level vitrified bonded grinding wheel.
5. Centerless grinding wheel.
6. High level cutting disc.
7. High level coated abrasives.
Thebulkdensityof Sol-gelaluminaabrasivegrain:
Grit designation
Mean diameter in um
Bulk Density(g/cm3)
F16
1230
1.76-2.00
F20
1040
1.78-2.02
F22
885
1.78-2.02
F24
745
1.78-2.00
F30
625
1.77-2.00
F36
525
1.79-1.99
F40
438
1.75-1.96
F46
370
1.73-1.93
F54
310
1.76-1.95
F60
260
1.72-1.94
F70
218
1.70-1.92
F80
185
1.67-1.87
F90
154
1.65-1.86
F100
129
1.64-1.84
F120
109
1.63-1.82
F150
82
1.62-1.82
F180
69
1.60-1.80
F220
58
1.58-1.78

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