Brown aluminum oxide(A)
It is fused with first-class raw materials and 2×3200KVA tilting
furnace, used to grind metals of high-tensile strength such as steel,
annealed malleable iron and hard bronze. It can also be used as
high-class refractory. |
| The 10000KVA tilting furnace for
fusing Brown Aluminum Oxide. |
|
Crain
Types and Grades |
|
Usage |
For vitrified wheels |
For belts |
For sheets |
For organic
wheels
|
For blasting |
| Type & Grade
|
A |
A-P1
|
A-P2
|
A-B |
A-S |
Chemical Composition |
| GB/T 2478-1996
|
CaO
typical
analysis |
|
| Type
& Grade |
Grit |
Chemical
composition
(%, by weight) |
| AI2O3 |
TiO2 |
CaO |
| A |
F4～F80 |
95.0～97.5
|
1.5～3.8
|
≤0.45 |
0.25 |
|
| F90～F150 |
94.0～97.5
|
| F180～F220 |
93.0～97.5
|
| F220 finer |
≥92.0 |
| A-P1
|
P12～P80 |
95.0～97.5
|
1.5～3.8
|
≤0.45 |
0.25 |
| P100～P150 |
94.0～97.5
|
| P180～P220 |
93.0～97.5
|
| P220 finer |
≥92.0 |
| A-B |
F4～F80 |
≥93.0 |
1.5～4.2
|
- |
0.28 |
| F90～F220 |
≥91.0 |
| F220 finer |
≥90.0 |
≤4.5 |
| A-P2
|
P8～P80 |
≥93.0 |
1.5～4.2
|
- |
- |
| P100～P220 |
≥91.0 |
| P220 finer |
≥90.0 |
≤4.5 |
| A-S |
16～220 |
≥92.0 |
≤4.2 |
- |
- |
| Note: Special requirement on
chemical composition can be satisfied through discussion. |
| Browm aluminum oxide
is electrically fused in an arc furnace from a mixture of bausite
at high temperature.It has browm color,high hardness and great toughness.The
abrasive tools made of brown aluminaum oxide are suitable for grinding
carbon steel,normal alloy steel,malleable cast iron and hard bronze.It
used for refractory aluminum oxide lining mixture,pouring materails
castalbe,etc. |
Usage |
For
Vitrified Wheels |
For
High-grade Wheels |
For
Organic |
For
Belts |
for
Sheets |
Symbol |
A |
A-A |
A-B |
A-P1 |
A-P2 |
| physical Chemical Performance Index |
Symbol |
Range
of the grain |
Chemical
properties(%) |
CaO
Typical Value |
Refractory℃ |
True
density |
Grain
Shape |
Toughness |
AI2O3 |
SiO2 |
TiO2 |
Fe2O3 |
CaO |
A |
F12-150 |
95-97.5 |
≤1.20 |
1.50-3.80 |
≤0.25 |
≤0.45 |
0.25 |
-- |
≥3.90 |
Equaled
Volume |
-- |
F180-220 |
93-97.2 |
A-A |
F12-150 |
95-97.5 |
≤1.00 |
1.50-3.80 |
≤0.25 |
≤0.45 |
0.25 |
800-1000 |
≥3.90 |
Equaled
Volume |
Great |
F180-220 |
93-97.2 |
A-B |
F12-150 |
91-93 |
≤1.20 |
1.50-4.20 |
≤2.50 |
≤0.45 |
0.20 |
-- |
≥3.90 |
Equaled
Volume |
-- |
F180-220 |
≥91 |
A-P1 |
F12-150 |
95-97.5 |
≤1.00 |
1.50-3.80 |
≤0.25 |
≤0.45 |
0.25 |
-- |
≥3.90 |
Equaled
Volume
Needle form |
Great |
F180-220 |
93-97.5 |
A-P2 |
F16-120 |
≥91 |
≤2.50 |
1.50-4.20 |
≤0.50 |
≤0.45 |
0.25 |
-- |
≥3.20 |
Needle
Form |
-- |
F150-220 |
≥90 |
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