| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, renowned in the industry as Brown Aluminum Oxide, is a synthetic mineral masterpiece prized for its remarkable hardness and extraordinary wear resistance. This exceptional material is meticulously crafted by expertly melting bauxite, iron filings, and anthracite in a high-temperature electric arc furnace. The process is followed by precise cooling, crushing, and screening, resulting in a product with unmatched physical and chemical properties. Its superior characteristics render it essential for a vast array of industrial applications, where performance and durability 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 creation of brown fused alumina (BFA) unfolds through a meticulous, multi-stage journey, beginning with raw material preparation and progressing through fusion, cooling, crushing, and classification. Let's delve into each key stage of this sophisticated process:
Raw Material Preparation:
Bauxite: At the heart of this process is bauxite, the chief raw material, celebrated for its high alumina (Al2O3) content. This bauxite is painstakingly chosen to ensure superior alumina levels and negligible impurities, setting the foundation for quality.
Iron filings or scrap iron: These are strategically added to the mixture, playing a vital role in enhancing the reduction process during the fusion phase.
Anthracite coal: This acts as a powerful reducing agent, contributing significantly to the chemical transformation process.
Fusion:
Electric Arc Furnace (EAF): The meticulously prepared blend is introduced into an electric arc furnace, where it is engulfed by intense heat (approximately 2000-2200°C or 3632-3992°F) generated by electric arcs between carbon electrodes.
Reduction and Fusion: Within this fiery environment, the alumina within the bauxite melts and reacts with the carbon from the anthracite, resulting in the formation of molten alumina. Concurrently, iron and other impurities are efficiently reduced and separated.
Cooling:
Cooling the Molten Alumina: The molten alumina is carefully extracted from the furnace and poured into molds or onto a cooling floor. This controlled cooling is vital to obtaining the desired crystal structure and size, which are essential for high-quality end products.
Formation of Ingots: Upon cooling, the material solidifies into substantial ingots or blocks of fused alumina, ready for subsequent processing.
Crushing and Grinding:
Primary Crushing: These solidified ingots are initially broken down using robust jaw crushers or comparable heavy machinery, setting the stage for further refinement.
Secondary Crushing and Grinding: The material undergoes further size reduction and refinement through cone crushers, roll crushers, and ball mills. This phase continues until the material reaches the precise particle size required.
Magnetic Separation:
Removing Metallic Impurities: The finely ground material is subjected to magnetic separators, which effectively eliminate any residual iron particles and other metallic impurities, ensuring purity.
Sieving and Classification:
Particle Size Distribution: The refined alumina undergoes sieving, dividing it into various grades based on particle size. This is accomplished through the use of advanced vibrating screens and air classifiers, ensuring precision and consistency.
Quality Control: Rigorous quality checks are performed on each batch to verify chemical composition, particle size distribution, and other quality parameters, ensuring that every batch meets or surpasses industry standards.
Brown fused alumina, a robust and versatile material, finds its place in a multitude of industrial sectors thanks to its exceptional hardness, remarkable toughness, and impressive high melting point:
Abrasives: This material is a key component in the crafting of grinding wheels, sandpaper, blasting media, and an array of other high-performance abrasive products.
Refractories: Brown fused alumina is integral to the manufacture of refractory bricks, castables, and various specialized materials designed to endure extreme temperatures with ease.
Surface Preparation: It excels in cleaning, deburring, and surface preparation across industries such as metalworking and automotive, ensuring pristine surfaces ready for further processing.
Ceramics: As a crucial ingredient in ceramic formulations, it imparts high durability and unparalleled resistance to thermal shock, enhancing the longevity and performance of ceramic products.
| 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 200 L (53 gallons) drums, providing substantial storage capacity.
Material: Made from either strong metal or high-density polyethylene, ensuring product safety and integrity.
Features: Designed with tamper-evident seals, these drums are moisture-resistant and stackable, ensuring efficient storage and security.
Applications: Ideal for situations where additional protection from environmental factors is necessary, or for ease of handling in automated processes.
Custom Packaging:
Options: Offering tailored packaging solutions that cater to specific customer needs and requirements.
Features: Options for custom weights, materials, and labeling, enabling you to meet unique industry standards and preferences.
Applications: Suited for specialized industries or unique applications that demand specific packaging standards and innovation.
Labeling and Documentation:
Identification: Every package is clearly labeled with comprehensive product information, including grade, grit size, weight, and batch number for easy identification.
Safety Information: Each label is meticulously crafted to include all necessary safety and handling instructions, ensuring user safety at all times.
Compliance: Our packaging is fully compliant with international shipping regulations and industry standards, ensuring peace of mind during transport and delivery.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a recognized leader in the trading sector, dedicated to providing top-notch refractory materials and abrasive media. By seamlessly integrating industry expertise with trade know-how, we are equipped with advanced testing facilities and fortified by strong technical proficiency. Our strategic presence, with two state-of-the-art factories in Luoyang city, Henan province, underlies our 24 years of excellence in crafting Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Harnessing our robust factory alliances, we deliver exceptional Cutting Wheels, Grinding Wheels, and Flap Discs, ensuring they are available at highly competitive prices. Our product suite is highly acclaimed and trusted, skillfully catering to the ever-evolving economic and social needs of the market. Upholding an unwavering commitment to quality and customer satisfaction, we guarantee that our products consistently adhere to the highest industry standards.
At Luoyang Frere, we are dedicated to fostering enduring partnerships and are enthusiastic about the prospect of collaborating with your esteemed organization. Our dedicated team is ready to meet your requirements and contribute substantially to your success in the foreseeable future.
At Frere company, our commitment to our customers transcends the initial sale. With our all-encompassing after-sales service, we ensure your satisfaction and success are sustained with our exceptional products. Here's the unparalleled service you can expect as our valued client for abrasives and refractories:
1. Technical Support:
Our cadre of seasoned engineers and technical experts is at your disposal, offering invaluable guidance and support. Whether seeking assistance with product selection, mastering application techniques, or troubleshooting, we stand ready to empower you for optimal outcomes.
2. Product Training:
Our comprehensive training programs are meticulously crafted to ensure your team is adept in utilizing our products with utmost efficacy and safety. From foundational handling to advanced applications, our training is customized to meet your precise requirements.
3. Warranty and Repairs:
Our products are fortified with a robust warranty. If challenges arise, our committed service team delivers prompt repairs or replacements, minimizing operational disruptions and maintaining seamless business continuity.
4. Regular Follow-ups:
Proactive customer service is our ethos. We execute regular follow-ups to assess product performance and solicit feedback, driving perpetual enhancement and customization of our solutions to align flawlessly with your expectations.
5. Maintenance Services:
To ensure maximum reliability and efficiency, we provide comprehensive maintenance services. Our specialists assist in crafting an ideal maintenance schedule and offer on-site support to sustain your equipment in peak condition.
6. Rapid Response:
Should an urgent situation arise, our rapid response team is poised to deliver immediate support. Recognizing the critical nature of time in your operations, we are committed to resolving issues with unparalleled swiftness.
7. Spare Parts Availability:
We boast an extensive inventory of spare parts to ensure swift availability of essential components. Coupled with our efficient logistics, we guarantee expedited delivery, minimizing downtime and ensuring operational continuity.
8. Customer Feedback Loop:
Your feedback is our guiding light. We actively solicit your insights on our products and services to fuel relentless improvement. Our ambition is to surpass your expectations at every touchpoint.
9. 24/7 Customer Service:
Our dedicated customer service team, available round-the-clock, addresses every concern or inquiry you may have. Be it a straightforward question or an urgent need, our unwavering support is always just a call away.
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