Brown Fused Alumina For Sandblasting

Grains :F 36 46 60 80 70 100 120
Al2O3:95% min
Brown fused alumina (BFA) is a type of synthetic abrasive which is made by fusing bauxite, iron oxide and coke at high temperatures in an electric arc furnace. It has a brown color and is used for grinding, polishing, blasting and cutting applications.

BFA is known for its high hardness, toughness, and resistance to wear and corrosion. It is also chemically stable and does not react with acids or alkalis. These properties make it a popular abrasive for metalworking, surface preparation, and refractory applications.

BFA is available in a range of grit sizes and can be used for both wet and dry blasting. It is commonly used for cleaning and preparing surfaces for painting or coating, removing rust and scale, and shaping and finishing metal parts.

In addition to its abrasive properties, BFA is also used as a refractory material in the production of ceramics, glass, and cement. It is also used as a filler in plastics, rubber, and other composites.

Package:25kg/bag,1000kg/jumbo bag

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

95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina made from Calcined Bauxite, also known as Brown corundum, also called as emery,95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina main chemical composition is AL2O3, and alumina content of Brown Fused Alumina is 97% -70%.95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina also contains a small amount of brown corundum abrasive stones such as Fe, Si, Ti.
95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina is hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also widely used for shot blasting and polishing media.
BFA for Refractory materials: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200 #, 325 #
Brown fused alumina For Abrasives: F24- F60
Brown fused alumina For Sandblasting: F10 -240
Brown fused alumina For Precision Casting: F80 - F120
BFA for Ceramic, electronic polishing category: F240-F800

95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina
Product name
Main Indicators (%)
Density
(g/cm3)
Appearance
Usage
Al2O3
Fe2O3
SiO2
Brown fused alumina/BFA
â?¥95
â?¤0.3
â?¤1.5
3.85
Brown-Red particle
Grinding wheels
90
â?¤1.3
â?¤1.5
3.85
Black granular
gray powder
Polishing,grinding
85
1.8
1.5
3.85
Black granular
gray powder
Grinding, Cut pieces, sandblasting
80
2.3
1.5
3.85
Black granular
gray powder
Polishing,blasting
70
4.3
1.5
3.85
Black granular
gray powder
Floor

Brief introduction of brown fused alumina powder

Brown fused alumina uses bauxite, coke as the main raw material, smelting in the electric arc furnace at high temperature. The composition of brown corundum mainly include AL2O3, TiO2, also contains a small amount of SiO2 and Fe2O3, micro hardness is HV1800-2200. The toughness is lower than silicon carbide, higher than that of white corundum, hardness is 9.0, slightly lower than the same level of white fused alumina. Commonly used brown fused alumina can be divided into brown fused alumina powder, brown fused alumina segment of sand,brown fused alumina granular sand. Today, I mainly explain the brown fused alumina powder related knowledge for you.

Brown fused alumina powder specifications:

Commonly used brown fused alumina powder specifications: 325,400,600,800,1000. . . . (Head) Gongyi Qingyun Refractories Co., Ltd. can adjust production according to customer requirements?

brown fused alumina powder
brown fused alumina powder

Properties of brown Alumina powder

The brown fused alumina powder has moderate hardness, high toughness, good self-sharpening ability, low sand consumption and recyclable use, good abrasion and abrasion resistance, and chemical composition stability, abrasion resistance, acid and alkali resistance. Especially its high hardness, specific gravity large, chemical stability and its unique self-sharpening, etc., so used as the first choice in brown fused alumina abrasive sandblasting process , but also the best choice for cleaning up the work piece.

Abrasives made of brown fused alumina powder , suitable for processing a variety of general steel, malleable iron, hard bronze, etc., can also produce high-grade refractories. Brown fused alumina abrasive use high-quality brown fused alumina as raw materials, using modern new unique technology from refining.Brown fused alumina sandblasting has characteristics of short grinding time, high efficiency, good efficiency and low price. The abrasive shell-shaped fracture, sharp edges and corners, in the crushing classification in the formation of new edges and edges, so that the grinding ability is better than other abrasives.

Brown Fused Alumina F36 Used For Boat Sandblasting
Brown Fused Alumina 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 .Then, it was crushed by autogenous mill, removed the iron through magnetic separation, screened to variety granularity.

we product 4 grades brown fused alumina, with different al2o3 content,
grade A: Al2O3 92-96%,Fe2O3 0.2-1.0%,SiO2 1.0-3.0%,TiO2 1.5-3.8%.
grade B: Al2O3 85-90%,Fe2O3 6-10%,SiO2 1.5-4%,TiO2 2-4%.
grade C: Al2O3 70-80%,Fe2O3 8-15%,SiO2 2-5%,TiO2 3-5%.
grade D: Al2O3 55-65%,Fe2O3 12-20%,SiO2 15-25%,TiO2 4-6%.

Advantages:
1.High hardness and high purity.
2.Corrosion resistance.
3.Grinding performance is good.
4.The applicable scope is wide.
5.The price is cheap.
6. Good wear-resisting performance,resist to shock

Brown Fused Alumina:



The brown aluminum oxide is made from bauxite, carbon materials, iron filings as raw material through melting in the electric furnace. It suitable for grinding high tensile metal, such as: a variety of common steel, malleable iron and hard bronze, etc., can also create advanced refractory.



Application of brown fused alumina:



grinding media, sandblasting media; surface cleaning, grit blasting, lapping, polishing, grinding,

sandblasting, etching : wet and dry blasting : mineral skin abrasion materials

metal finishing & surface preparation : refractors, ceramics, coatings " bonded & coated abrasives.

Brown fused alumina for Abrasive Sandblasting,Precision casting advantages:

1) Not affecting the color of the processing cases.

2) Sandblasting in the non-iron process.

3) High speed processing.

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

5) The high grinding ability

Black fused alumina, also known as low-aluminum corundum, is a gray-black crystal with α-Al2O3 and iron spinel as the main ore phase, which is obtained by melting aluminum bauxite in an electric arc furnace. It is characterized by low Al2O3 content. There is a certain amount of Fe2O3 (about 10%), so it has the characteristics of moderate hardness, high toughness, high temperature resistance and stable thermal performance. It is mostly used for free grinding, such as grinding and rough grinding before electroplating of products. It is mainly used for polishing and sand blasting of stainless steel, metal products, optical glass, bamboo and wood products, and is also a novel abrasive for manufacturing resin grinding wheels, cutting sheets and abrasive cloths.

Model: White fused alumina F46

Chemical compositions
Al2O3: 99.53%min
SiO2: 0.04%max
Na2O: 0.26%max
Fe2O3: 0.04%max

Physical properties
Color: White
Bulk density: 1.75-1.95g/cm3
Grain density: 3.90g/cm3min
Morse hardness: 9
Content of magnetic substance: 0.0023%max.



25kg PVC bags + 1MT big bag.