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
F4ï½F80
95.0ï½97.5
1.5ï½3.8
≤0.45
0.25
F90ï½F150
94.0ï½97.5
F180ï½F220
93.0ï½97.5
F220 finer
≥92.0
A-P1
P12ï½P80
95.0ï½97.5
1.5ï½3.8
≤0.45
0.25
P100ï½P150
94.0ï½97.5
P180ï½P220
93.0ï½97.5
P220 finer
≥92.0
A-B
F4ï½F80
≥93.0
1.5ï½4.2
-
0.28
F90ï½F220
≥91.0
F220 finer
≥90.0
≤4.5
A-P2
P8ï½P80
≥93.0
1.5ï½4.2
-
-
P100ï½P220
≥91.0
P220 finer
≥90.0
≤4.5
A-S
16ï½220
≥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.
Grain Types And symbol
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°C 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
