| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, also fondly referred to as Brown Aluminum Oxide, stands as a remarkable synthetic mineral, renowned for its extraordinary hardness and unmatched wear resistance. Manufactured with precision through the intricate process of melting premium bauxite, iron filings, and superior anthracite in a high-temperature electric arc furnace, it undergoes a rigorous cooling, crushing, and screening regimen. This meticulous creation process endows the product with exceptional physical and chemical attributes, making it a vital component across a vast range of industrial applications, where reliability and performance are paramount.
| 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 meticulous production of brown fused alumina (BFA) unfolds through a series of expertly coordinated stages. These stages include raw material preparation, fusion, precise cooling, methodical crushing, and meticulous classification. Allow us to guide you through this comprehensive process:
Raw Material Preparation:
Bauxite: This essential primary raw material, rich in alumina (Al2O3), is meticulously selected to ensure optimal alumina content with minimal impurities present.
Iron filings or scrap iron: Strategically added to the blend, this component aids effectively in the reduction process during the fusion stage.
Anthracite coal: An integral reducing agent utilized during the production process.
Fusion:
Electric Arc Furnace (EAF): The meticulously prepared mixture is introduced into a state-of-the-art electric arc furnace. This furnace produces soaring temperatures (approximately 2000-2200°C or 3632-3992°F) using powerful electric arcs between carbon electrodes.
Reduction and Fusion: At these elevated temperatures, the alumina within the bauxite melts and reacts with the carbon from the anthracite, culminating in the formation of molten alumina. Concurrently, iron and other impurities are reduced and effectively separated.
Cooling:
Cooling the Molten Alumina: The molten alumina is expertly transferred out of the furnace into molds or onto a cooling surface. Controlled cooling is paramount to achieving the ideal crystal structure and size.
Formation of Ingots: As the material undergoes cooling, it solidifies into substantial ingots or blocks of high-quality fused alumina.
Crushing and Grinding:
Primary Crushing: These solidified ingots are initially broken down using robust jaw crushers or other formidable heavy machinery.
Secondary Crushing and Grinding: The material undergoes further reduction, being crushed and ground into even finer sizes using cone crushers, roll crushers, and ball mills, until the precise particle size is achieved.
Magnetic Separation:
Removing Metallic Impurities: The finely ground material passes through advanced magnetic separators to eliminate any residual iron particles and other metallic impurities.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina is then methodically sieved into distinct grades based on particle size, utilizing sophisticated vibrating screens and air classifiers.
Quality Control: Every batch undergoes rigorous testing for chemical composition, particle size distribution, and other quality parameters, ensuring it consistently meets stringent industry standards.
Brown fused alumina stands as a cornerstone in industrial applications, renowned for its unparalleled hardness, remarkable toughness, and exceptional high melting point:
Abrasives: It serves as a key component in crafting superior grinding wheels, resilient sandpaper, efficient blasting media, and a multitude of other abrasive products designed for peak performance.
Refractories: Essential in the production of high-performance refractory bricks, versatile castables, and other specialized materials engineered to endure and excel under extremely high temperatures.
Surface Preparation: Perfect for meticulous cleaning, precise deburring, and thorough preparation of surfaces across diverse industries, including metalworking and automotive, ensuring excellence in every phase.
Ceramics: Plays a crucial role as a vital ingredient in ceramic products that demand unmatched durability and exceptional resistance to thermal shock, setting new standards in quality and longevity.
| 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 substantial 200 L (53 gallons) drums, ideal for significant storage needs.
Material: Fabricated from resilient metal or high-density polyethylene to withstand rigorous conditions.
Features: Secured with tamper-evident seals for safety, moisture-resistant, and stackable design ensures efficient use of storage space.
Applications: Ideal when additional protection from environmental factors is imperative or for streamlined handling in automated processes.
Custom Packaging:
Options: Offers bespoke packaging solutions, meticulously tailored to meet specific customer requirements.
Features: Provides custom weights, materials, and labeling options to fulfill unique demands and satisfy specific 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 comprehensive product information, including grade, grit size, weight, and batch number for easy identification.
Safety Information: Labels are thoughtfully equipped with necessary safety and handling instructions to ensure proper usage.
Compliance: Our packaging is in full compliance with stringent international shipping regulations and industry standards, ensuring global compatibility.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the realm of refractory materials and abrasive media. As a dynamic trading powerhouse, we integrate industry acumen with an exceptional trading strategy, fortified by cutting-edge testing facilities and unparalleled technical prowess. Nestled in the vibrant city of Luoyang, Henan province, our two factories are the epitome of innovation and experience, boasting a remarkable 24-year legacy in the production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Capitalizing on our formidable factory alliances, we supply an elite range of Cutting Wheels, Grinding Wheels, and Flap Discs, all offered at unbeatable prices. Our meticulously crafted products have garnered widespread acclaim and trust, seamlessly adapting to the ever-changing economic and social landscape. We pledge unwavering dedication to quality and customer satisfaction, ensuring every product embodies the pinnacle of excellence.
At Luoyang Frere, we cherish the foundation of enduring partnerships and eagerly anticipate the privilege of collaborating with your prestigious company. Our dedicated team stands ready to fulfill your requirements and propel your success, paving the way for a prosperous future together.
At Frere company, we firmly uphold the belief that our commitment to customers extends far beyond the initial sale. Our all-encompassing after-sales service is meticulously crafted to ensure your prolonged satisfaction and success with our superior products. Here's an overview of the premium support you receive when you select us as your trusted supplier for abrasives and refractories:
1. Unmatched Technical Support:
Our elite team of seasoned engineers and technical specialists stands ready to deliver unparalleled advice and support. Whether you're seeking guidance on product selection, application techniques, or troubleshooting, we are dedicated to helping you achieve exceptional outcomes.
2. Comprehensive Product Training:
We provide thorough, tailored training programs to ensure your team is well-equipped to utilize our products safely and effectively. Our training encompasses everything from fundamental handling to sophisticated application methods, customized to meet your precise requirements.
3. Reliable Warranty and Repairs:
All our products are backed by a robust warranty. Should any issues arise, our dedicated service team offers expedient repairs or replacements, minimizing operational disruptions.
4. Proactive Regular Follow-ups:
We are committed to proactive customer service. Our team conducts regular follow-ups to assess product performance and gather valuable feedback, aiding in the continuous enhancement of our offerings to better serve your needs.
5. Efficient Maintenance Services:
To optimize the longevity and efficiency of our products, we offer expert maintenance services. Our specialists assist in developing a maintenance schedule and provide onsite support to ensure your equipment remains in peak condition.
6. Swift Rapid Response:
In the event of urgent matters, our rapid response team is always on standby to deliver immediate assistance. We recognize the critical importance of time in your operations and are committed to resolving issues with utmost speed.
7. Extensive Spare Parts Availability:
We maintain an extensive inventory of spare parts to guarantee swift access to essential components. Our highly efficient logistics network ensures quick delivery, minimizing downtime and maintaining the seamless flow of your operations.
8. Dynamic Customer Feedback Loop:
Your feedback is invaluable to our continuous improvement process. We actively solicit your insights on our products and services, utilizing it to drive enhancements and exceed your expectations in every engagement.
9. Unwavering 24/7 Customer Service:
Our devoted customer service team is at your disposal 24/7 to address any inquiries or concerns. Whether it's a straightforward query or a critical emergency, we are unwavering in our support for you.
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