| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, or Brown Aluminum Oxide, is a premium synthetic mineral renowned for its extraordinary hardness and unmatched wear resistance. This exceptional material is produced by the intricate process of melting bauxite, iron filings, and anthracite in a high-temperature electric arc furnace, then undergoing a precise cooling, crushing, and screening sequence. Such meticulous production results in a product with remarkable physical and chemical attributes, making it essential for a wide spectrum of industrial applications.
| 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) is a sophisticated multi-stage operation. This meticulous process ensures a product of unsurpassed quality and efficiency, encompassing key stages like raw material preparation, fusion, cooling, crushing, and classification. Let's delve into the intricacies of this exceptional process:
Raw Material Preparation:
Bauxite: We begin with bauxite, the cornerstone of our process, chosen for its elevated alumina (Al2O3) levels and minimal impurities. This careful selection is pivotal for achieving optimal product quality.
Iron filings or scrap iron: Integrated into the mixture to facilitate the reduction process during the intense fusion stage.
Anthracite coal: Utilized as a potent reducing agent, crucial for the transformation process.
Fusion:
Electric Arc Furnace (EAF): The expertly blended mixture is introduced into our state-of-the-art electric arc furnace. Here, extreme temperatures (approximately 2000-2200°C or 3632-3992°F) are achieved through robust electric arcs produced between carbon electrodes.
Reduction and Fusion: At these searing temperatures, the alumina from the bauxite melts and undergoes a transformative reaction with anthracite carbon, yielding molten alumina. Concurrently, iron and other impurities are efficiently reduced and isolated.
Cooling:
Cooling the Molten Alumina: The molten alumina is skillfully poured from the furnace into molds or upon a cooling floor. This controlled cooling phase is crucial to crystallize the alumina into the precise crystal structure and size required for superior performance.
Formation of Ingots: Upon cooling, the material hardens into massive ingots or blocks of premium fused alumina, ready for the next stage of refinement.
Crushing and Grinding:
Primary Crushing: The solidified ingots are initially shattered using robust jaw crushers or comparable heavy machinery, initiating the refinement process.
Secondary Crushing and Grinding: The material undergoes further reduction through cone crushers, roll crushers, and ball mills, meticulously ground to achieve the precise particle size that meets our exacting standards.
Magnetic Separation:
Removing Metallic Impurities: The finely ground material is subjected to magnetic separators to meticulously eliminate remaining iron particles and other unwanted metallic impurities.
Sieving and Classification:
Particle Size Distribution: The refined and purified alumina is methodically sieved into various grades based on particle size. This is performed using advanced vibrating screens and precise air classifiers to ensure consistency and quality.
Quality Control: Every batch undergoes rigorous testing for chemical composition, precise particle size distribution, and other critical quality parameters, ensuring compliance with stringent industry standards and delivering excellence in every grain.
Brown Fused Alumina is celebrated for its exceptional hardness and toughness, alongside a remarkable high melting point, making it an indispensable asset across a multitude of industrial applications:
Abrasives: Perfectly crafted for use in grinding wheels, sandpaper, and blasting media, as well as a variety of other abrasive products that demand precision and resilience.
Refractories: Integral to the production of refractory bricks, castables, and an array of materials engineered to endure and perform in high-temperature environments.
Surface Preparation: Essential for the meticulous cleaning, deburring, and preparation of surfaces, especially in metalworking and automotive industries where precision is paramount.
Ceramics: A vital component in ceramic products designed to deliver unmatched durability and withstand extreme 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 available in reliable 200 L (53 gallons) drums.
Material: Engineered from durable metal or high-density polyethylene for superior protection.
Features: Secured with tamper-evident seals, moisture-resistant, and stackable for optimal storage efficiency.
Applications: Essential when additional protection from environmental factors is crucial or for seamless handling in automated processes.
Custom Packaging:
Options: Tailored packaging solutions crafted to meet specific customer requirements.
Features: Offers custom weights, materials, and labeling options to satisfy unique needs.
Applications: Ideal for specialized industries or unique applications demanding specific packaging standards.
Labeling and Documentation:
Identification: Each package is distinctly labeled with comprehensive product information, including grade, grit size, weight, and batch number for easy identification.
Safety Information: Labels encompass vital safety and handling instructions to ensure secure use.
Compliance: Packaging adheres to international shipping regulations and industry standards for assured compliance.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a prestigious trading entity with a core focus on the specialized arenas of refractory materials and abrasive media. By seamlessly integrating industry insights with a trade-based approach, we are equipped with cutting-edge testing facilities and fortified by unparalleled technical expertise. Nestled in the heart of Luoyang city, Henan province, our two state-of-the-art factories draw from an impressive legacy of 24 years in the meticulous production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Empowered by our formidable relationships with top-tier factories, we present an exquisite range of premium Cutting Wheels, Grinding Wheels, and Flap Discs, all offered at highly competitive prices. Our products have garnered widespread acclaim and trust, skillfully addressing the dynamic economic and social requisites of today's market. We remain steadfast in our commitment to excellence and customer satisfaction, rigorously ensuring that each product we deliver adheres to the pinnacle of quality standards.
At Luoyang Frere, we cherish the establishment of enduring partnerships and eagerly anticipate the chance to collaborate with your distinguished company. Our dedicated team is poised and ready to cater to your requirements and play a pivotal role in your forthcoming triumphs.
At Frere company, we are committed to ensuring that our dedication to your success continues long after the initial purchase. Our exceptional after-sales service is crafted to guarantee your satisfaction and the ongoing excellence of our products. Here are the outstanding benefits you receive when selecting us as your trusted partner in abrasives and refractories:
1. Technical Support:
Our team of seasoned engineers and expert technical specialists is always ready to provide you with unparalleled advice and support. Whether your needs involve product selection, application techniques, or troubleshooting, we are dedicated to helping you achieve optimal results every time.
2. Product Training:
We offer comprehensive training programs to ensure your team is fully prepared to utilize our products safely and effectively. From fundamental handling to advanced application strategies, our training is customized to meet your specific requirements and empower your team.
3. Warranty and Repairs:
All our products are backed by a robust warranty. Should you experience any issues, our dedicated service team is ready to provide fast repairs or replacements, ensuring minimal disruption to your operations and maintaining your project's momentum.
4. Regular Follow-ups:
We pride ourselves on delivering proactive customer service. Our team will consistently follow up to assess product performance and collect feedback, allowing us to refine and enhance our offerings to better serve your evolving needs.
5. Maintenance Services:
To extend the life and enhance the efficiency of our products, we offer comprehensive maintenance services. Our experts assist in developing a maintenance plan and provide on-site support to ensure your equipment remains in peak condition.
6. Rapid Response:
When urgency strikes, our rapid response team is poised to deliver immediate assistance. We understand the critical importance of time in your operations and are committed to resolving any issues swiftly and effectively.
7. Spare Parts Availability:
We maintain an extensive inventory of spare parts to ensure you have prompt access to essential components. Our efficient logistics network ensures quick delivery, minimizing downtime and keeping your operations running seamlessly.
8. Customer Feedback Loop:
Your feedback is invaluable to us, and we actively seek your insights on our products and services to drive continuous improvement. Our aim is to consistently surpass your expectations with every interaction and offering.
9. 24/7 Customer Service:
Our dedicated customer service team is at your disposal 24/7 to address any inquiries or issues you may have. Whether it's a simple question or an urgent matter, we are always here to provide the support you need.
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