Brown Fused Alumina / Alumina Oxide

Brown corundum micro powder takes the high-quality bauxite ore in deep underground as the raw material, produced by 24 hours uninterrupted high-current high-temperature smelting, cooling and crystallization. The conversion rate of the �±-Al2O3 is over 99%, can be produced according to JIS, European Standard, National Standard, or according to customers special requirements.

White Fused Alumina Introduction
White Fused Alumina (white corundum) is produced by the grinding & classification of selected Macro grain feed stock in an advanced milling and classifying facility. This ensures an iron free product of narrow particle size distribution and high whiteness.
White Fused Alumina Physics Properties
Color
White
Crystal form
Triangal crystal system
Mohs hardness
9.0-9.5
Micro hardness
2000-2200 kg/mm�²
Melting point
2250
Maximum operating temperature
1900
True density
3.90 g/cm�³
Bulk density
1.5-1.99 g/cm�³

White Fused Alumina Chemical Position Standards
Code and Size Range

Chemical Composition%
AI2O3
SiO2
Fe2O3
Na2O
F90-F150
99.50
0.10
0.05
0.30
F180-F220
99.50
0.10
0.05
0.30
#240-#3000
99.50
0.10
0.05
0.30
#4000-#12500
99.50
0.10
0.05
0.30

Brown Fused Alumina Oxide is fused in the electric-arc furnace under the high temperature of above 2250°C with high quality bauxite as raw material and matched by the carbon material and scrap iron .The degree of refractory is more than 1850°C.

Brown corundum for Abrasive Sandblasting Precision casting advantages:

1) Very low amount of iron oxide, suitable for non-ferrous blasting operations.

2) Sandblasting in the non-iron process.

3) High speed processing.

4) Not affecting the color of the processing cases.

5) Easy to shell

6) The high grinding ability

Brown fused alumina for refractory material advantages:

1) High quality bauxite as raw material

2) Refractory temperature is more than 1900°C

3) High hardness, good toughness

4) Very low amount of iron oxide

Packing:1 MT big bag or 25kg paper bag *40 bags on one pallet ;

As per customers requirement


FAQ :

Q1. Will the FREE SAMPLES be provided for buyers?
- YES. We will provided FREE SAMPLE about 1kg
Q2. How about the express fee?
- Our companys policy is the buyer pay for express fee.
Q3. Is there QUALITY REPORT for the products?
- YES. We provide quality report of our company or CIQ,SGS according to clients requirement

Function characteristics of white fused alumina sand: It will not affect the color of the workpiece; It can be used for sand blasting in the process of prohibiting iron powder residue; micro powder grade is very suitable for wet sand blasting and polishing; high processing speed and good quality; the content of iron oxide is very low, which is suitable for sand blasting operation in which iron slag is strictly prohibited; Remove impurities by pickling. White corundum abrasive treatment Many advantages of white fused alumina abrasive contribute to its important application in industry, but the waste of white corundum abrasive used in workpiece processing has become the main problem faced by enterprises. When white fused alumina abrasive is used, abrasive precipitation will occur. Of course, there will be other sundries on the workpiece. If the two are combined, the difficulty of cleaning will be further increased.

Product Application
1. Sandblasting and grinding of metal and non-metal products.
2. Architectural ceramics, special ceramics and process ceramics.
3. Coarse grinding and high-pressure cutting, wear-resistant products, as additives.
4. Resin abrasives, coated with abrasives in sandpaper, gauze and other manufacturers of raw materials.
5. Filtration media - using granular abrasive as the bottom medium of filter bed to purify drinking water or wastewater is a new type of water filtration material at home and abroad, especially suitable for non-ferrous metal mineral processing and oil drilling mud weighting agent.

This kind of Brown Fused Alumina is mainly used for various material workpieces to decontaminate, Derusting, prevent corrosion, remove oxide skin, light-decorate, process pattern effect and so on. About Brown Fused Alumina for sandblasting: There are three factors the decide the effect of Brown Fused Alumina for sandblasting.

1. The grinding ability, the better for sandblasting.
2. The bulk density: the higher bulk density, the better for sandblasting.
3. The dust: the lower dust, the better for sandblasting.
Brown Fused Alumina with high bulk density and air cleaned, the quality of this kind of Brown Fused Alumina is very excellent for sandblasting.

We will provided FREE SAMPLE about 1kg

Packing:1 MT big bag or 25kg paper bag *40 bags on one pallet ;
As per customers requiremen

BFA Brown corundum oxide Brown Fused Alumina
Brown aluminum oxide crystals is made of bauxite/anthracite coal, and smelted in electric-arc furnace of high temperature more than 2000degrees.Abrasives tools made by brown fused alumina are suitable for metal with high tensile (like:steel, malleable iron, bronze etc).and suitable for grinding, polishing, blasting, precision casting etc.Brown aluminum oxide crystal is also used for refractory material. Brown aluminum oxide crystals with characteristics like: high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion resistance, high temperature, high strength.

Chemical analysis:
Al2O3(min) 92%
SiO2(max) 2%
Fe2O3(max) 2%
TiO2(max) 4%

Physical characteristics:
color Brown
Mohs Hardness 9.0
Melting point 2250â??
Maximum service temperature 1850â??
Bulk density 1.53-1.99g/cm3
Specific gravity 3.6-3.9g/cm3

Purpose:
1.grinding for konescope/glass/monocryst alline silicon/lens/jadeware
2.abrasion-proof material for expressway/airstrip/dock/ parking lot/stadium
3.bonded abrasives and coated abrasives
4.surface preparation and finishing
5.Thermal Spraying(Plasma Spraying)
6.Super Refractories, Ceramics and Tiles
7.Lapping & Micro-blasting applications

Other models:
Grain 0-1mm 1-3mm 3-5mm 5-8mm
Fine powder
0-100mesh 0-200mesh 0-320mesh
Grit
8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#
Micro powder
(FEPA)F230 F240 F280 F320 F360 F400 F500 F600 F800
(JIS) #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000

Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality bauxite, carbon and iron as raw material.

Our product characterized by high purity, good crystal, strong fluidity, low coefficient of linear expansion, good corrosion-resistance and so on. Could not burst, no pulverization and crack in using course of refractory.