| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, also known as Brown Aluminum Oxide, stands as a synthetic mineral marvel, renowned for its remarkable hardness and exceptional wear resistance. This extraordinary material is born from the intricate process of melting bauxite, iron filings, and anthracite in a high-temperature electric arc furnace, followed by a meticulous cooling, crushing, and screening process. The result is a product with unparalleled physical and chemical properties that render it indispensable across a multitude 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 meticulous production journey of brown fused alumina (BFA) unfolds through several pivotal stages. This comprehensive process begins with the careful preparation of raw materials, transitions through fusion, cooling, and continues with crushing before culminating in precise classification. Below is a detailed exposition of each phase:
Raw Material Preparation:
Bauxite: This primary ingredient is rich in alumina (Al2O3) and is scrupulously chosen to maintain optimal alumina levels while minimizing impurities. This selection is essential for achieving the desired quality.
Iron filings or scrap iron: These components are strategically incorporated to facilitate the reduction process during the high-temperature fusion phase.
Anthracite coal: Utilized as a potent reducing agent, it plays a crucial role in the fusion process, ensuring the transformation of bauxite into alumina.
Fusion:
Electric Arc Furnace (EAF): This stage involves introducing the expertly prepared mixture into a state-of-the-art electric arc furnace. The furnace reaches exceptional temperatures of approximately 2000-2200°C (3632-3992°F) by harnessing electric arcs generated between carbon electrodes.
Reduction and Fusion: Within this intense heat environment, the alumina from bauxite liquefies and interacts with carbon from anthracite, forming molten alumina. Concurrently, iron and other impurities are effectively reduced and eliminated.
Cooling:
Cooling the Molten Alumina: The molten alumina is deftly decanted from the furnace into molds or spread on a cooling floor. This controlled cooling is pivotal for achieving the optimal crystal structure and particle size.
Formation of Ingots: As the alumina cools, it transitions into substantial ingots or blocks, forming the foundational structure of fused alumina.
Crushing and Grinding:
Primary Crushing: The robust, cooled ingots undergo initial breakdown with the assistance of jaw crushers or other industrial-grade machinery.
Secondary Crushing and Grinding: The material then undergoes further refinement, being systematically crushed and ground into finer sizes through the use of cone crushers, roll crushers, and ball mills, continually progressing until the perfect particle size is attained.
Magnetic Separation:
Removing Metallic Impurities: Utilizing magnetic separators, any persistent iron particles and metallic impurities are meticulously extracted from the ground material.
Sieving and Classification:
Particle Size Distribution: The purified and crushed alumina is sorted into diverse grades, differentiated by particle size. This classification is performed using advanced vibrating screens and air classifiers.
Quality Control: Rigorous quality assessments are conducted on each batch, scrutinizing chemical composition, particle size distribution, and other vital parameters to ensure adherence to stringent industry standards and excellence.
Brown fused alumina is a versatile powerhouse in the industrial sector, cherished for its exceptional hardness, toughness, and impressive high melting point. These attributes make it indispensable across a wide array of applications:
Abrasives: Serving as a vital component in crafting superior grinding wheels, precision sandpaper, efficient blasting media, and a variety of other high-performance abrasive products.
Refractories: Essential in the creation of robust refractory bricks, reliable castables, and other resilient materials designed to withstand extreme temperatures.
Surface Preparation: Employed for the meticulous cleaning, precise deburring, and thorough preparation of surfaces, especially in demanding industries like metalworking and automotive sectors.
Ceramics: Integral to the formulation of ceramic products, ensuring they possess remarkable durability and an exceptional resistance to thermal shock.
| 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: Excellence in secure storage and transport.
Weight: Typically available in 200 L (53 gallons) drums, offering reliable capacity.
Material: Crafted from robust metal or high-density polyethylene, ensuring long-lasting durability.
Features: Equipped with tamper-evident seals and moisture resistance, these drums are stackable, optimizing storage efficiency.
Applications: Ideal for situations requiring additional environmental protection or streamlined handling in automated processes.
Custom Packaging: Tailored to your specific needs.
Options: We offer bespoke packaging solutions tailored to meet unique customer specifications.
Features: Customizable weights, materials, and labeling options are available to perfectly align with your individualized requirements.
Applications: Perfectly suited for specialized industries or distinctive applications that demand specific packaging standards.
Labeling and Documentation: Clear, compliant, and comprehensive.
Identification: Each package is meticulously labeled with detailed product information, including grade, grit size, weight, and batch number for easy identification.
Safety Information: Labels provide crucial safety and handling instructions, ensuring product use aligns with best practices.
Compliance: Our packaging adheres strictly to international shipping regulations and industry standards, guaranteeing peace of mind during every step of transit.
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the world of trading, with a specialization in top-tier refractory materials and abrasive media. Merging state-of-the-art industry practices with trade acumen, our company is fortified with cutting-edge testing facilities and profound technical know-how. Nestled in the heart of Luoyang city, Henan province, our duo of factories harnesses 24 years of rich experience in the meticulous production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
By leveraging robust relationships with our factories, we proudly present an exquisite range of premium Cutting Wheels, Grinding Wheels, and Flap Discs, all offered at highly competitive prices. Our products are not only symbols of quality but also enjoy widespread acclaim and trust, adeptly aligning with the dynamic economic and social demands of today's market. Our unwavering commitment to excellence ensures that our offerings consistently surpass the most stringent quality standards, guaranteeing utmost customer satisfaction.
At Luoyang Frere, we cherish the essence of enduring partnerships and eagerly anticipate the opportunity to collaborate with your esteemed company. Our dedicated team is poised to cater to your requirements and is committed to bolstering your path to success in the near future.
At Frere company, we passionately believe in nurturing enduring partnerships with our cherished customers, extending our commitment well beyond the initial sale. Our exceptional after-sales service is crafted to ensure your ongoing satisfaction and triumph with our premium products. Discover the unparalleled assurance and support we offer when you select us as your trusted supplier for abrasive and refractory solutions:
1. Technical Support:
Our elite team of seasoned engineers and technical specialists stands ready to deliver unparalleled expertise and guidance. Whether you require assistance in selecting the perfect product, mastering application techniques, or resolving any technical issues, we are here to empower you to achieve optimal results.
2. Product Training:
Experience comprehensive training programs meticulously designed to empower your team to operate our products with utmost efficiency and safety. From foundational handling to advanced application methods, our training is tailored to meet your distinct requirements, ensuring unparalleled proficiency.
3. Warranty and Repairs:
Our products are backed by a robust warranty, promising peace of mind. Should any issues arise, our dedicated service team ensures rapid repairs or replacements, minimizing disruptions and maintaining smooth operations.
4. Regular Follow-ups:
Embracing a proactive approach, we conduct regular follow-ups to assess product performance and gather your invaluable feedback. This ongoing dialogue enables us to continuously enhance and adapt our offerings to better align with your needs.
5. Maintenance Services:
Optimize the lifespan and performance of our products with our expert maintenance services. Our specialists can assist in crafting a strategic maintenance schedule and provide invaluable on-site support, ensuring your equipment remains in peak condition.
6. Rapid Response:
In urgent situations, our rapid response team is dedicated to delivering immediate support. Recognizing the critical nature of time in your operations, we prioritize swift resolutions to any issues, ensuring seamless continuity.
7. Spare Parts Availability:
Our extensive inventory of spare parts guarantees swift access to essential components. Backed by an efficient logistics network, we ensure quick delivery, minimizing downtime and maintaining smooth, uninterrupted operations.
8. Customer Feedback Loop:
Your feedback is a cornerstone of our continuous improvement ethos. We actively seek your insights on our products and services to drive excellence, relentlessly striving to surpass your expectations in every interaction.
9. 24/7 Customer Service:
Our devoted customer service team is at your service around the clock, ready to address any concerns or inquiries. Be it a routine question or an urgent matter, we are unwavering in our commitment to providing unwavering support.
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