| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, often recognized in the industry as Brown Aluminum Oxide, stands as a testament to advanced synthetic mineral engineering. Renowned for its unmatched hardness and extraordinary wear resistance, this material is expertly crafted. The process begins with the precision melting of select bauxite, iron filings, and anthracite in a high-temperature electric arc furnace. It is then subjected to a meticulous cooling, crushing, and screening regimen, resulting in a product with exceptional physical and chemical attributes. Its unique and remarkable properties make it an essential component in a wide array of industrial applications, ensuring precision and performance in every use.
| 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 an intricate process composed of multiple stages, which meticulously include raw material preparation, fusion, cooling, crushing, and classification. Below is a comprehensive breakdown of this sophisticated process:
Raw Material Preparation:
Bauxite: The cornerstone of our production is high-quality bauxite, rich in alumina (Al2O3). We meticulously select bauxite with optimal alumina content and minimal impurities to ensure superior product quality.
Iron filings or scrap iron: Incorporated into the blend to facilitate the reduction process during the fusion stage, enhancing the overall efficiency.
Anthracite coal: Employed as a potent reducing agent to aid in the fusion process.
Fusion:
Electric Arc Furnace (EAF): The meticulously prepared mixture is introduced into an electric arc furnace. Within this furnace, electric arcs between carbon electrodes generate intense temperatures (approximately 2000-2200°C or 3632-3992°F), essential for the fusion process.
Reduction and Fusion: Under these extreme conditions, the alumina in the bauxite liquefies and reacts with carbon from the anthracite, forming molten alumina. Concurrently, iron and other impurities are effectively reduced and separated.
Cooling:
Cooling the Molten Alumina: The intense heat of the molten alumina is tempered by pouring it into molds or onto a cooling floor. This controlled cooling is crucial to cultivate the ideal crystal structure and size.
Formation of Ingots: As cooling progresses, the material solidifies into substantial ingots or blocks of fused alumina, ready for the next phase.
Crushing and Grinding:
Primary Crushing: The solidified ingots are initially reduced in size using jaw crushers or other robust machinery, preparing them for further processing.
Secondary Crushing and Grinding: Further size reduction occurs through cone crushers, roll crushers, and ball mills, refining the material into smaller particles until the precise size specifications are met.
Magnetic Separation:
Removing Metallic Impurities: The refined material is passed through magnetic separators to meticulously eliminate any residual iron particles and other metallic impurities, ensuring purity.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina is systematically sieved into various grades based on particle size, facilitated by vibrating screens and air classifiers, catering to diverse market needs.
Quality Control: Each production batch undergoes rigorous testing for chemical composition, particle size distribution, and other key quality metrics, guaranteeing compliance with stringent industry standards.
Brown fused alumina is a versatile powerhouse in the industrial sector, celebrated for its exceptional hardness, robustness, and impressive high melting point. This makes it indispensable across a variety of demanding applications:
Abrasives: Its formidable strength is harnessed in the manufacturing of grinding wheels, sandpaper, blasting media, and numerous other abrasive products that demand reliability and precision.
Refractories: This material is crucial in the creation of refractory bricks, castables, and other specialized materials, all designed to endure extreme temperatures without compromise.
Surface Preparation: It excels in the cleaning, deburring, and meticulous preparation of surfaces, finding its place in industries like metalworking and automotive, where perfection is non-negotiable.
Ceramics: Brown fused alumina is a key ingredient in ceramic products that require remarkable durability and the ability to withstand 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: Secure and stable options for extra protection.
Weight: Typically available in practical 200 L (53 gallons) sizes for various industry needs.
Material: Constructed from robust metal or high-density polyethylene, ensuring durability.
Features: Features include tamper-evident seals, moisture resistance, and stackable design for optimal storage efficiency.
Applications: Ideal for scenarios requiring added protection against environmental factors or streamlined handling in automated workflows.
Custom Packaging: Tailored solutions to meet distinct requirements.
Options: Custom packaging solutions cater to unique customer specifications, offering flexibility and precision.
Features: Customizable weights, materials, and labels available to match specific customer demands.
Applications: Ideally suited for specialized industries or applications necessitating bespoke packaging standards.
Labeling and Documentation: Clear and compliant for international standards.
Identification: Every package is meticulously labeled with product details, including grade, grit size, weight, and batch number for easy traceability.
Safety Information: Labels provide essential safety and handling instructions, promoting safe usage.
Compliance: Our packaging meets international shipping regulations and industry standards, ensuring hassle-free transit and delivery.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the realm of refractory materials and abrasive media, offering unparalleled expertise and innovation. Our company seamlessly integrates the best of both industry and trade, supported by cutting-edge testing facilities and unmatched technical proficiency. Situated in the heart of Luoyang city, Henan province, our two state-of-the-art factories bring the wisdom of 24 years of experience in the meticulous production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA), setting a benchmark of quality and reliability.
Through our robust alliances with premier factories, we deliver exceptional Cutting Wheels, Grinding Wheels, and Flap Discs that combine superior quality with competitive pricing. Our distinguished products have garnered acclaim and trust from a diverse clientele, seamlessly aligning with the dynamic economic and social landscapes of today's market. With unwavering dedication to quality and customer satisfaction, we ensure our products consistently exceed the highest industry standards, reinforcing our pledge to excellence.
At Luoyang Frere, we cherish the power of enduring partnerships and are enthusiastic about the prospect of collaborating with your esteemed company. Our dedicated team is not just committed to meeting your needs but is passionate about driving your success as well. We eagerly anticipate the opportunity to support your endeavors and contribute to your achievements in the near future.
At Frere company, we understand that our commitment to our customers goes far beyond the initial purchase. Our exceptional after-sales service ensures that you continue to enjoy success and satisfaction with our products. When you choose us as your premier abrasive and refractory supplier, you can look forward to a service experience that is second to none:
1. Technical Support:
Our distinguished team of seasoned engineers and technical specialists is always ready to deliver expert guidance and support. Whether you need help with choosing the right product, mastering application techniques, or resolving issues, we are dedicated to helping you achieve optimal outcomes.
2. Product Training:
We provide comprehensive training programs designed to empower your team with the knowledge and skills to use our products safely and efficiently. From basic handling instructions to advanced application strategies, our training is customized to meet your unique requirements.
3. Warranty and Repairs:
Our products come equipped with a robust warranty. Should any issues arise, our devoted service team will ensure quick repairs or replacements, minimizing any impact on your operations and keeping you on track.
4. Regular Follow-ups:
We champion proactive customer service. Our team engages in regular follow-ups to assess product performance and gather valuable feedback. This ongoing dialogue allows us to refine and enhance our offerings to better serve your evolving needs.
5. Maintenance Services:
To enhance the longevity and performance of our products, we provide maintenance services. Our specialists will assist you in creating a maintenance schedule and offer on-site support to ensure your equipment remains in peak condition.
6. Rapid Response:
In the face of urgent challenges, our rapid response team is ready to offer immediate assistance. We recognize the critical nature of your operations and are committed to resolving any issues swiftly and efficiently.
7. Spare Parts Availability:
We maintain an expansive inventory of spare parts to guarantee swift access to essential components. Our dynamic logistics network ensures rapid delivery, minimizing downtime and maintaining seamless operations.
8. Customer Feedback Loop:
We highly value your feedback and actively seek your insights on our products and services, using them to fuel ongoing improvements. Our ambition is to surpass your expectations in every interaction you have with us.
9. 24/7 Customer Service:
Our dedicated customer service team is available around the clock to address any concerns or inquiries you may have. Whether it's a routine question or an urgent matter, we are here to offer unwavering support.
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