Product Description:
Brown corundum is a type of abrasive that is made from bauxite,
coke (anthracite) and iron filings. These raw materials are put
into an arc furnace and smelted at high temperatures to produce the
final product. This abrasive blasting material has many advantages,
including short grinding time, high efficiency, good benefit, and
low price. The product has moderate hardness, high toughness, and
good self-sharpening properties, making it a popular choice for
abrasive blasting processes.
The chemical composition of brown corundum is stable, which gives
it excellent wear-resistance and resistance to both acid and alkali
substances. Its unique conchoidal structure and sharp edges allow
it to form new edges and corners during continuous grinding. This
means that it has a better grinding ability than other abrasives.
Brown corundum is also known for its high hardness, big specific
gravity, stable chemical properties and unique self-sharpening,
making it ideal for achieving a matte effect and removing rust,
oxidation and welding slag from workpieces.
Brown corundum has many desirable properties, including high
purity, good crystallization, strong fluidity, low coefficient of
linear expansion and corrosion resistance. Dozens of fire-resistant
production companies have verified that this product has the
characteristics of no explosion, no chalking, and no cracking in
the application process. Its cost-effectiveness is also higher than
that of traditional brown corundum, making it the best aggregate
and filler for fused alumina refractories.
Features:
Less Dust
Brown corundum is a popular choice for sandblasting surface
treatment due to its relatively high density, which results in less
dust during the sandblasting process. This ensures operator health
and safety while improving operator visibility. In comparison, slag
has a glass phase structure that makes it quite brittle and easy to
be crushed into small particles during the grinding and
sandblasting processes. Additionally, its small density results in
small slag particles suspended in the air which causes
environmental pollution. Quartz sand is also a fragile abrasive and
not a good choice for manufacturing.
High Efficiency
Brown corundum particles can quickly impact the surface of the
object with a large number of sharp edges under high pressure,
which leads to a high cleaning rate, usually twice as fast as
conventional abrasives. Acceleration and velocity of particles in
the air flow are functions of inertance and particle size, so the
smaller the particle size, the higher the impact force on the
object surface. Hence brown corundum is considered a very fast
spray grinding method.
Low Depletion
The unique particle size of brown corundum ensures that more
effective particles can hit the surface of the object, reducing the
loss of abrasive. This leads to a more efficient sandblasting
process with less waste.
Recyclable
Brown corundum can be reused several times, and if it has not lost
its cutting ability, it can be recycled and reused again. When
brown corundum loses its cutting ability, it can also be applied to
the construction industry as cement additive.
Technical Parameters:
Chemical Constitution:
| Al2O3 | ≥96.3% |
| SiO2 | ≤1.4% |
| Fe2O3 | ≤0.21% |
| TiO2 | ≤1.5% |
Physical Properties:
| Colour | brown |
| Mohs hardness | 9 |
| True density | 3.9 g/cm3 |
| Bulk density | 1.60~1.95g/cm3 |
| Ig-Loss | ≤0.09% |
Applications:
Sandblasting is a widely used technology in various fields
including environmental protection materials, aluminum profile,
copper profile, glass, washed jeans, precision molds, and more. It
is an effective way to clean and modify the surface of a material
using high-speed abrasive particles.
Grinding is another popular technology used for various
applications such as picture tubes, optical glass, monocrystalline
silicon, lenses, watch glass, crystal glass, and jade. It is a
process of creating smooth surfaces or edges on a material using an
abrasive wheel or stone.
Resin abrasives are highly suitable for grinding and polishing
applications. They are available in different colors, possess good
hardness and toughness, and offer suitable particle cross-section
type and edge retention.
Coating abrasives are raw materials used by manufacturers to create
products such as sandpaper and gauze. They are used for various
applications such as polishing, grinding, and cleaning.
Functional fillers are an essential component in the production of
materials such as automobile brakes, highway pavements, airstrips,
parking lots, industrial floors, and sports venues. They improve
the properties of the materials and enhance their performance.
Support and Services:
Our Brown Aluminum Oxide product is backed by our technical support
and services team. We offer assistance with product selection,
application recommendations, and troubleshooting. Our team is
dedicated to providing you with the highest level of customer
service and expertise to ensure the success of your project.
Additionally, we offer customized solutions to meet your specific
needs and requirements. Contact us today to learn more about our
technical support and services for Brown Aluminum Oxide.
Packing and Shipping:
Product Packaging:
- 25 kg bags
- 50 kg bags
- 1000 kg big bags
Shipping:
- Shipment by sea or land
- Transported in 20ft or 40ft containers
- Delivery time varies depending on location
