| Customization: | Available |
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| Shape: | Angular |
| Al2O3: | 95% |
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Brown Fused Alumina, also known fondly as Brown Aluminum Oxide, stands as a testament to excellence in synthetic mineral materials. Revered for its extraordinary hardness and unmatched wear resistance, this premium product is expertly crafted through the intricate process of melting bauxite, iron filings, and anthracite in a state-of-the-art high-temperature electric arc furnace. Following this, a meticulous cooling, crushing, and precise screening process ensures the highest quality. These meticulous processes bestow upon it exceptional physical and chemical properties, making it a critical component in a myriad of industrial applications that demand nothing but the best.
| 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 our premium brown fused alumina (BFA) unfolds through a meticulously orchestrated sequence of stages. This sophisticated process encompasses the preparation of raw materials, fusion, cooling, crushing, and classification, ensuring unparalleled quality and performance. Allow us to guide you through this intricate journey:
Raw Material Preparation:
Bauxite: The heart of our process starts with the selection of bauxite, a raw material enriched with a high percentage of alumina (Al2O3). We diligently choose bauxite that guarantees optimal alumina content while minimizing impurities, setting the foundation for excellence.
Iron filings or scrap iron: These are strategically incorporated into the mix to enhance the reduction process during the fusion stage.
Anthracite coal: Serving as a potent reducing agent, anthracite coal plays a crucial role in the process.
Fusion:
Electric Arc Furnace (EAF): Our carefully prepared mixture is introduced into an electric arc furnace. This furnace operates at elevated temperatures (circa 2000-2200°C or 3632-3992°F) generated by electric arcs between carbon electrodes, a testament to cutting-edge technology.
Reduction and Fusion: Under these searing conditions, alumina from bauxite transforms, reacting with the carbon from anthracite, yielding molten alumina while reducing and segregating iron and other impurities.
Cooling:
Cooling the Molten Alumina: The molten alumina is expertly poured from the furnace into molds or onto a cooling floor, where controlled cooling is paramount. This precision ensures the formation of the desired crystal structure and size.
Formation of Ingots: As cooling progresses, the material solidifies into substantial ingots or blocks, showcasing the fusion of precision and quality.
Crushing and Grinding:
Primary Crushing: The solidified ingots undergo an initial breakdown using robust jaw crushers or other heavy-duty machinery, emphasizing power and efficiency.
Secondary Crushing and Grinding: The material is subjected to further crushing and refining through cone crushers, roll crushers, and ball mills, meticulously achieving the targeted particle size with precision.
Magnetic Separation:
Removing Metallic Impurities: A thorough passage through magnetic separators ensures the elimination of any lingering iron particles and other metallic impurities, enhancing purity.
Sieving and Classification:
Particle Size Distribution: The refined alumina is methodically sieved into diverse grades based on particle size, utilizing state-of-the-art vibrating screens and air classifiers to ensure accuracy and consistency.
Quality Control: Every batch undergoes rigorous testing for chemical composition, particle size distribution, and essential quality parameters, guaranteeing adherence to the highest industry standards and delivering unmatched reliability.
Brown fused alumina stands out as a remarkable material in diverse industrial applications, celebrated for its exceptional hardness, impressive toughness, and soaring high melting point:
Abrasives: It is a key component in grinding wheels, sandpaper, blasting media, and a variety of other abrasive products, ensuring superior performance.
Refractories: Integral in the creation of refractory bricks, castables, and more, this material excels in enduring extremely high temperatures, proving indispensable.
Surface Preparation: Perfect for cleaning, deburring, and skillfully preparing surfaces, particularly in dynamic sectors like metalworking and automotive industries.
Ceramics: Essential as an ingredient in ceramic products, it imparts high durability and remarkable resistance to thermal shock, meeting rigorous demands.
| 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: Generally available in standard 200 L (53 gallons) drums.
Material: Constructed from metal or high-density polyethylene for sturdy and reliable storage.
Features: Equipped with tamper-evident seals, designed to be moisture-resistant, and stackable for maximized storage efficiency.
Applications: Employed when additional protection from environmental factors is paramount or for ease of handling in automated processes.
Custom Packaging:
Options: Tailored packaging solutions meticulously crafted to align with specific customer requirements.
Features: Customizable weights, materials, and labeling options are available to meet particular demands.
Applications: Ideal for specialized industries or unique applications necessitating specific packaging standards.
Labeling and Documentation:
Identification: Each package is distinctively labeled with vital product information, including grade, grit size, weight, and batch number.
Safety Information: Labels are inclusive of essential safety and handling instructions, ensuring maximum protection.
Compliance: Packaging adheres strictly to international shipping regulations and industry standards, ensuring hassle-free global distribution.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the trading world, with a keen focus on the niche segments of refractory materials and abrasive media. We seamlessly integrate industry and trade, supported by state-of-the-art testing facilities and a wealth of technical prowess. Nestled in the heart of Luoyang city, Henan province, our two factories proudly boast 24 years of unparalleled experience in the production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Harnessing unmatched relationships with our factories, we are poised to bring forth an exquisite selection of Cutting Wheels, Grinding Wheels, and Flap Discs, all offered at highly competitive prices. Our products have garnered widespread acclaim and trust, expertly navigating the intricate currents of shifting economic and social landscapes. Our unwavering dedication to quality and customer satisfaction ensures our offerings consistently exceed the most rigorous standards of excellence.
Here at Luoyang Frere, our commitment to fostering enduring partnerships is unwavering, and we eagerly anticipate the prospect of collaborating with your prestigious company. Our dedicated team stands ready to cater to your needs and to bolster your success, paving the way for a prosperous future together.
At Frere company, we hold a steadfast belief that our duty to our valued customers transcends the mere transaction. Our all-encompassing after-sales service is meticulously crafted to guarantee your ongoing satisfaction and triumph with our unrivaled products. Here's the unparalleled support you can anticipate when you choose us as your trusted partner for refractory and abrasive solutions:
1. Technical Support:
Our team of seasoned engineers and technical specialists stands ready to offer unparalleled guidance and support. Whether you require expert advice on product selection, mastery of application techniques, or troubleshooting solutions, we are committed to helping you attain exemplary results.
2. Product Training:
We provide comprehensive training programs designed to ensure your team is proficient in utilizing our products with utmost effectiveness and safety. Our training spans from fundamental handling to sophisticated application methods, meticulously customized to align with your unique requirements.
3. Warranty and Repairs:
Each of our superior products is backed by a robust warranty. Should you face any challenges, our dedicated service team is poised to deliver swift repairs or replacements, thereby ensuring minimal disruption to your operations and maintaining seamless productivity.
4. Regular Follow-ups:
We are staunch advocates of proactive customer service. Our team diligently conducts regular follow-ups to assess the performance of our products and gather vital feedback. This commitment empowers us to continuously refine and adapt our offerings to better align with your evolving needs.
5. Maintenance Services:
To enhance the longevity and performance of our products, we offer meticulous maintenance services. Our experts can assist you in developing a strategic maintenance schedule and provide on-site support to ensure your equipment operates in peak condition.
6. Rapid Response:
In the event of a critical situation, our rapid response team is at your disposal, ready to deliver immediate assistance. We fully comprehend the importance of time in your operations and strive to resolve any issues with utmost speed and efficiency.
7. Spare Parts Availability:
We sustain an extensive inventory of spare parts to guarantee your swift access to essential components. Our streamlined logistics network ensures expedited delivery, minimizing downtime and seamlessly sustaining your operations.
8. Customer Feedback Loop:
Your feedback holds immense significance for us. We actively solicit your insights on our products and services, utilizing them to fuel continuous innovation and enhancement. Our aim is to surpass your expectations at every touchpoint.
9. 24/7 Customer Service:
Our committed customer service team is accessible around the clock to address any inquiries or concerns you may have. Whether it's a straightforward question or an urgent situation, we are unwavering in our dedication to provide unwavering support.
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