| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, commonly referred to as Brown Aluminum Oxide, stands as a premier synthetic mineral material renowned for its extraordinary hardness and exceptional wear resistance. Engineered through an intricate process involving the melting of bauxite, iron filings, and anthracite in a high-temperature electric arc furnace, this product undergoes a precise sequence of cooling, crushing, and screening to ensure its unmatched physical and chemical attributes. These impressive properties render it indispensable across a diverse array of industrial applications, making it a go-to choice for demanding tasks that require robustness 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 production of brown fused alumina (BFA) is an intricate journey, meticulously crafted through several pivotal stages. It begins with the precise preparation of raw materials and moves through fusion, cooling, crushing, and classification. Here's an in-depth exploration of this fascinating process:
Raw Material Preparation:
Bauxite: At the heart of the process lies bauxite, the key raw material rich in alumina (Al2O3). The bauxite is meticulously chosen to ensure it meets the stringent criteria for alumina concentration and has minimal impurities.
Iron filings or scrap iron: Included in the blend to facilitate the reduction process during the high-heat fusion stage.
Anthracite coal: Employed as a powerful reducing agent to aid in the fusion process.
Fusion:
Electric Arc Furnace (EAF): The carefully prepared mixture is introduced into the electric arc furnace. This furnace harnesses the power of electric arcs between carbon electrodes to reach extraordinary temperatures (approximately 2000-2200°C or 3632-3992°F).
Reduction and Fusion: Under these extreme conditions, the alumina in bauxite melts, engaging with the carbon from anthracite to form a potent molten alumina. Meanwhile, iron and other impurities are reduced and effectively separated.
Cooling:
Cooling the Molten Alumina: The molten alumina is strategically poured out of the furnace into molds or onto a cooling floor. Controlled cooling is vital to achieve the desired crystal structure and precise size.
Formation of Ingots: As the material gradually cools, it solidifies into substantial ingots or blocks of fused alumina.
Crushing and Grinding:
Primary Crushing: The robust cooled ingots are initially broken down with the aid of jaw crushers or other formidable machinery.
Secondary Crushing and Grinding: The material undergoes further reduction through cone crushers, roll crushers, and ball mills, continuously refining until the exact particle size is realized.
Magnetic Separation:
Removing Metallic Impurities: The finely ground material is passed through magnetic separators to ensure the removal of any residual iron particles and other metallic impurities.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina is meticulously sieved into distinct grades based on particle size, using advanced vibrating screens and air classifiers.
Quality Control: Each meticulously crafted batch undergoes rigorous testing for chemical composition, particle size distribution, and other essential quality parameters, ensuring it meets and exceeds industry standards.
Brown fused alumina is a remarkable material revered across numerous industrial fields for its exceptional properties. With its unparalleled hardness, unmatched toughness, and an impressive ability to withstand high melting points, it serves as a crucial component in a diverse range of applications:
Abrasives: In the realm of abrasives, our brown fused alumina shines as a key ingredient in grinding wheels, sandpaper, blasting media, and many other abrasive products. Its natural grit and durability make it perfect for achieving precision and excellence in abrasive tasks.
Refractories: Brown fused alumina plays a vital role in the creation of refractory bricks, castables, and a host of other materials specifically designed to endure extreme temperatures. Its resilience ensures these products perform excellently in high-heat environments.
Surface Preparation: Brown fused alumina excels in surface preparation, effectively cleaning, deburring, and preparing surfaces across various industries, including metalworking and automotive. Its use ensures surfaces are impeccably prepared for further processing or finishing.
Ceramics: As an essential ingredient in ceramic products, brown fused alumina offers indispensable high durability and resistance to thermal shock, making it ideal for creating ceramic items that demand these critical qualities.
| 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 offered in 200 L (53 gallons) drums, catering to various storage needs.
Material: Available in sturdy metal or high-density polyethylene for versatile applications.
Features: Secured with tamper-proof seals, these are moisture-resistant and stackable, optimizing storage.
Applications: Ideal for scenarios where extra protection from environmental factors is crucial, or for seamless integration in automated processes.
Custom Packaging:
Options: Bespoke packaging solutions crafted meticulously to align with your specific requirements.
Features: Customizable weights, materials, and labeling options to fulfil unique needs and preferences.
Applications: Tailored for specialized industries or unique applications demanding specific packaging standards.
Labeling and Documentation:
Identification: Each package is meticulously labeled with comprehensive product details, including grade, grit size, weight, and batch number for easy identification.
Safety Information: Labels incorporate all essential safety and handling instructions, ensuring user safety.
Compliance: Our packaging proudly meets international shipping regulations and industry standards, assuring you of global compliance.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the trading realm, specifically in refractory materials and abrasive media. We are a powerhouse that seamlessly merges industry insights with trading prowess, backed by state-of-the-art testing facilities and unparalleled technical expertise. Nestled in the heart of Luoyang city, Henan province, our two factories boast a rich legacy of 24 years in the meticulous crafting of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Thanks to our formidable factory ties, we provide top-tier Cutting Wheels, Grinding Wheels, and Flap Discs, all at highly competitive prices. Our products are not merely recognized but deeply trusted, perfectly aligned to meet the dynamic economic and social market demands. Our unwavering dedication to quality and customer satisfaction ensures that our offerings consistently surpass the highest benchmarks.
At Luoyang Frere, forging lasting partnerships is at the core of our ethos, and we are excited about the prospect of collaborating with your esteemed company. Our enthusiastic team is poised to cater to your requirements and play a pivotal role in your upcoming successes.
At Frere company, we perceive our duty to customers as extending far beyond the initial purchase. Our all-encompassing after-sales service is meticulously crafted to ensure your enduring satisfaction and the seamless success of our high-quality products. When you choose us as your trusted abrasive and refractory supplier, you can expect nothing but excellence:
1. Technical Support:
Our accomplished team of engineers and technical specialists is readily available to provide expert guidance and support. Whether you're selecting the perfect product, refining application techniques, or solving challenges, we are committed to helping you achieve the pinnacle of performance.
2. Product Training:
Our comprehensive training programs are designed to fully equip your team to use our products with maximum effectiveness and safety. From foundational handling to complex application methods, our tailored training sessions cater to your unique requirements.
3. Warranty and Repairs:
Every product is backed by a robust warranty. Should any issue arise, our dedicated service team will swiftly provide repairs or replacements, ensuring your operations face minimal disruption.
4. Regular Follow-ups:
Our proactive customer service philosophy involves regular follow-ups to monitor product performance and gather feedback. This ongoing dialogue helps us refine and adapt our offerings to perfectly align with your evolving needs.
5. Maintenance Services:
To enhance both the longevity and efficiency of our products, we offer comprehensive maintenance services. Our experts assist in developing a tailored maintenance schedule and deliver on-site support to ensure your equipment remains in peak condition.
6. Rapid Response:
In urgent situations, our rapid response team is poised to deliver immediate assistance. Understanding the critical nature of time in your operations, we prioritize resolving issues swiftly to maintain your productivity.
7. Spare Parts Availability:
We maintain an extensive inventory of spare parts to guarantee swift access to essential components. Our efficient logistics network ensures rapid delivery, minimizing downtime and keeping your operations seamlessly flowing.
8. Customer Feedback Loop:
Your feedback is of paramount importance to us. We actively solicit your input to drive continual enhancements, aiming to surpass your expectations with every interaction.
9. 24/7 Customer Service:
Our committed customer service team stands ready 24/7 to address any concerns or inquiries. Be it a simple question or an urgent situation, we are steadfastly here to provide unwavering support.
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