| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, also known as Brown Aluminum Oxide, stands as a pinnacle of synthetic mineral materials, revered for its remarkable hardness and extraordinary wear resistance. This exquisite product is meticulously crafted by melting bauxite, iron filings, and anthracite under the intense heat of a high-temperature electric arc furnace. Afterward, it undergoes a precise sequence of cooling, crushing, and screening to achieve its unique form. The result is a product with unmatched physical and chemical properties that render it essential for a myriad of industrial applications, ensuring optimal performance and reliability.
| TYPICAL CHEMICAL ANALYSIS | |
| Al2O3 | 99.54% |
| Na2O | 0.23% |
| SiO2 | 0.06% |
| Fe2O3 | 0.06% |
| PHYSICAL PROPERTIES | |
| Color | Brown |
| Shape | Angular grain shape |
| Crystal Form | Alpha alumina |
| Specific Gravity | 3.95 |
| Hardness | 2150 Knoop scale |
| Magnetic Material | 0.00% |
The creation of brown fused alumina (BFA) is a sophisticated, multi-stage journey that includes meticulous raw material preparation, fusion, cooling, crushing, and precise classification. Let's embark on an insightful exploration of this intricate process:
Raw Material Preparation:
Bauxite: Our journey begins with bauxite, the quintessential ingredient packed with high alumina content (Al2O3). This bauxite is rigorously selected to guarantee the optimal alumina percentage alongside minimal impurities, setting the foundation for excellence.
Iron filings or scrap iron: Introduced into the blend, these elements play a pivotal role in the reduction phase during the intense fusion stage.
Anthracite coal: Employed as a powerful reducing agent, anthracite coal enhances the fusion process.
Fusion:
Electric Arc Furnace (EAF): Into the electric arc furnace goes the meticulously prepared mixture, where it is subjected to staggering temperatures reaching 2000-2200°C (3632-3992°F), thanks to the electric arcs generated between carbon electrodes.
Reduction and Fusion: At these extreme temperatures, the alumina from bauxite undergoes melting and reacts with anthracite's carbon to form molten alumina. Consequently, iron and miscellaneous impurities are adeptly reduced and expelled.
Cooling:
Cooling the Molten Alumina: The vibrant molten alumina is expertly poured from the furnace into molds or onto a structured cooling floor. This controlled cooling is paramount to shape the desired crystal structure and precise size.
Formation of Ingots: As the molten masterpiece cools, it solidifies majestically into sizeable ingots or blocks of fused alumina.
Crushing and Grinding:
Primary Crushing: These robust ingots, once cooled, are initially fragmented by formidable jaw crushers or similar machinery.
Secondary Crushing and Grinding: The journey continues as the material is further refined into smaller dimensions via cone crushers, roll crushers, and ball mills, enduring until the ideal particle size is impeccably achieved.
Magnetic Separation:
Removing Metallic Impurities: The refined material is methodically processed through magnetic separators to extricate any residual iron particles and other metallic contaminants, ensuring purity.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina is then systematically sieved into various grades based on particle size, a process conducted with vibrating screens and air classifiers for precision.
Quality Control: Each crafted batch undergoes rigorous testing for chemical composition, particle size distribution, and additional quality metrics, affirming compliance with industry standards of excellence.
Renowned for its remarkable hardness, unwavering toughness, and the ability to withstand extreme temperatures, brown fused alumina finds its place in a multitude of industrial applications:
Abrasives: Essential in the crafting of grinding wheels, sandpaper, blasting media, and a variety of abrasive solutions, ensuring precision and effectiveness.
Refractories: Integral in creating high-performance refractory bricks, castables, and materials designed to endure the most challenging high-temperature environments.
Surface Preparation: The go-to choice for cleaning, deburring, and meticulously preparing surfaces across industries like metalworking and automotive for superior finishes.
Ceramics: A vital component in ceramic products that demand exceptional durability and resilience against thermal shock, ensuring longevity and reliability.
| TYPICAL BULK DENSITY | |||||||
| Grit (F) | g/cm³ | Grit (F) | g/cm³ | Grit (F) | g/cm³ | Grit (F) | g/cm³ |
| 12 | 1.74 | 30 | 1.77 | 60 | 1.65 | 120 | 1.51 |
| 14 | 1.72 | 36 | 1.76 | 70 | 1.62 | 150 | 1.48 |
| 16 | 1.72 | 40 | 1.72 | 80 | 1.59 | 180 | 1.46 |
| 20 | 1.72 | 46 | 1.71 | 90 | 1.55 | 220 | 1.44 |
| 24 | 1.79 | 54 | 1.69 | 100 | 1.54 | ||
Drums and Barrels:
Weight: Typically supplied in 200 L (53 gallons) drums, designed for substantial capacity.
Material: Available in either metal or high-density polyethylene, ensuring robust protection.
Features: Secured with tamper-evident seals, these containers are moisture-resistant and stackable for optimal storage efficiency.
Applications: Essential for scenarios requiring additional protection from environmental factors or for streamlined handling in automated processes.
Custom Packaging:
Options: Offers tailored packaging solutions meticulously crafted to meet specific customer requirements.
Features: Provides custom weights, materials, and labeling options to perfectly match particular needs.
Applications: Perfectly suited for specialized industries or unique applications that demand specific packaging standards.
Labeling and Documentation:
Identification: Each package is meticulously labeled with detailed product information, including grade, grit size, weight, and batch number, for easy reference.
Safety Information: Labels encompass vital safety and handling instructions to ensure secure usage.
Compliance: Packaging strictly complies with international shipping regulations and industry standards, ensuring safe and legal transport.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the trading of refractory materials and abrasive media. We expertly blend industry insight with trade expertise, supported by our state-of-the-art testing facilities and a wealth of technical knowledge. Situated in the thriving city of Luoyang, Henan province, our two esteemed factories have been at the forefront of producing Brown Fused Alumina (BFA) and White Fused Alumina (WFA) for 24 illustrious years.
By harnessing our enduring factory partnerships, we deliver superior Cutting Wheels, Grinding Wheels, and Flap Discs at unmatched prices. Our offerings are celebrated and trusted, seamlessly catering to the dynamic economic and societal shifts of the market. We are unwavering in our dedication to quality and customer satisfaction, consistently ensuring our products uphold the highest echelons of standards and excellence.
Luoyang Frere cherishes enduring relationships and eagerly anticipates the opportunity to collaborate with your prestigious company. Our dedicated team is poised and excited to fulfill your needs, actively contributing to your triumph and growth in the promising times ahead.
At Frere company, we believe that our commitment to you begins when you choose our products. Our after-sales service is crafted to ensure your ongoing success and satisfaction. Trust us as your premier abrasive and refractory supplier, and experience the excellence of our post-sale care:
1. Technical Support:
Our seasoned engineers and technical specialists stand ready to provide unparalleled support and advice. Be it product selection, application techniques, or troubleshooting, we are here to ensure you achieve optimal results with expert guidance.
2. Product Training:
We deliver comprehensive training programs, empowering your team to use our products with confidence and safety. Our sessions range from basic handling to advanced applications, meticulously tailored to suit your precise requirements.
3. Warranty and Repairs:
Every product is backed by a solid warranty. Encounter an issue? Our dedicated service team will swiftly handle repairs or replacements, ensuring your operations continue with minimal interruption.
4. Regular Follow-ups:
Proactive service is our mantra. Our team conducts regular follow-ups to assess product performance and gather invaluable feedback, enabling us to refine our offerings and better satisfy your ever-evolving needs.
5. Maintenance Services:
To extend product lifespan and efficiency, we offer superior maintenance services. Our experts will help design a maintenance schedule and provide on-site support, keeping your equipment in peak condition.
6. Rapid Response:
Facing an urgent issue? Our rapid response team is on standby, ready to deliver immediate assistance. We recognize the importance of time in your operations and are committed to resolving problems swiftly.
7. Spare Parts Availability:
With a vast inventory of spare parts, we ensure swift access to necessary components. Our efficient logistics network promises quick delivery, reducing downtime and maintaining seamless operations.
8. Customer Feedback Loop:
Your feedback fuels our innovation. We actively solicit your insights on products and services, using your input to enhance every aspect of our operations. Our aim is to surpass your expectations at every turn.
9. 24/7 Customer Service:
Our dedicated customer service team is available around the clock to address your needs. Whether it's a simple question or an emergency, we are here to provide unwavering support, anytime you require.
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