Product Description:
Brown Fused Alumina (BFA) is created through the fusion process of
bauxite in an electric arc furnace operating at extremely high
temperatures. The resulting product possesses a distinctive brown
color and exhibits exceptional hardness and toughness. BFA is
manufactured in a tilting electric arc furnace, ensuring a high
temperature resistance and robust erosion resistance. Its superior
machinery strength and thermal stability make it an ideal raw
material for the production of shaped refractories.
The unique properties of brown fused alumina include high purity,
excellent crystallization, excellent fluidity, low coefficient of
linear expansion, and resistance to corrosion. Numerous fire-proof
manufacturing companies have confirmed its performance,
demonstrating no explosion, chalking, or cracking during
application. Notably, BFA surpasses the traditional brown corundum
in terms of cost-effectiveness, making it the top choice for fused
alumina refractories as both an aggregate and filler.
Features:
Brown corundum has many remarkable characteristics that make it
highly sought after in various industries. Its exceptional
qualities are listed below:
High Hardness
Brown corundum boasts a MOH hardness of 9.0, just second to
diamond. This makes it an incredibly tough and durable material,
with exceptional resistance to wear and tear.
Fine Chemical Stability
One of the most impressive features of brown corundum is its high
chemical stability and corrosion resistance. This allows it to
withstand harsh environments, including acids, alkalis, and extreme
temperatures.
Small Coefficient of Thermal Expansion
Brown corundum has a very small coefficient of thermal expansion,
meaning it doesn't expand or contract significantly under extreme
temperature changes. This makes it resistant to thermal stress and
ensures its stability in various conditions.
Technical Parameters:
Brown corundum chemical composition content and physical properties table |
| Chemical content(%) | physical property |
| Al203 | 92.5-95.0% | Proportion | 3.50-3.90g/cm3 |
| Fe203 | 0.3-1.0% | Bulk density | 1.30-1.90g/cm3 |
| Si02 | 1.0-2.0% | Mohs hardness | 9 |
| Ti02 | 1.5-4.0% | Color | Brown |
Applications:
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1. Precision casting: It is used in precision casting, which is the
process of producing high accuracy components for the aerospace,
automotive, and medical industries.
2. Lining materials: It is used in lining materials for furnaces
and kilns due to its excellent resistance to high temperatures.
2. Grinding paste: Brown corundum is used in grinding pastes for
various applications such as optical lens grinding, tool
manufacturing, and polishing.
Packing and Shipping:
Our Brown Aluminum Oxide is carefully packaged and shipped to
ensure its safe delivery to our customers. The following is a
description of our packaging and shipping process:
- Packaging: The Brown Aluminum Oxide is first packed in high-quality, durable
bags or drums to prevent any damage during transportation. The bags
or drums are then sealed and labeled with the necessary product
information.
- Shipping: We offer various shipping options to meet our customers' needs.
Our products can be shipped by air, sea, or land, depending on the
destination. We work with reliable shipping companies to ensure
timely and secure delivery.
- Customs Documentation: We take care of all necessary customs documentation and procedures
for international orders to ensure a smooth delivery process.
