| Customization: | Available |
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| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
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White fused alumina stands out as an extraordinary abrasive material characterized by its remarkable hardness and purity. This high-performing media is the perfect choice for grinding high carbon steel, high-speed steel, and chilled steel, delivering unmatched performance and efficiency. Moreover, its extensive use as a polishing material guarantees a flawless finish, elevating results in various applications.
| TYPICAL CHEMICAL ANALYSIS | |
| Al2O3 | 99.54% |
| Na2O | 0.23% |
| SiO2 | 0.06% |
| Fe2O3 | 0.06% |
| PHYSICAL PROPERTIES | |
| Color | White |
| Shape | Angular grain shape |
| Crystal Form | Alpha alumina |
| Specific Gravity | 3.95 |
| Hardness | 2150 Knoop scale |
| Magnetic Material | 0.00% |
| 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 | ||
Raw Material Preparation:
Bauxite: Meticulously chosen bauxite serves as the primary raw material, boasting a high concentration of alumina (Al2O3). The selection process is executed with precision to ensure optimal alumina content while minimizing impurities.
Iron filings or scrap iron: To enhance the efficiency of the reduction process during fusion, iron filings or scrap iron are incorporated into the mixture.
Anthracite coal: Anthracite coal is employed as a pivotal reducing agent, playing a crucial role in the process.
Fusion:
Electric Arc Furnace (EAF): The meticulously prepared mixture is introduced into an electric arc furnace where electric arcs between carbon electrodes generate extraordinarily high temperatures (approximately 2000-2200°C or 3632-3992°F).
Reduction and Fusion: At these elevated temperatures, the alumina within the bauxite melts, interacting with carbon from the anthracite to form molten alumina. Concurrently, iron and other impurities undergo reduction and separation.
Cooling:
Cooling the Molten Alumina: The molten alumina is strategically poured from the furnace into molds or onto a cooling floor. This controlled cooling process is vital to achieve the desired crystalline structure and size.
Formation of Ingots: As the cooling process advances, the material solidifies into substantial ingots or blocks of fused alumina.
Crushing and Grinding:
Primary Crushing: Initially, the cooled ingots are dismantled using jaw crushers or other robust machinery, marking the commencement of the crushing phase.
Secondary Crushing and Grinding: Subsequently, the material undergoes further size reduction through cone crushers, roll crushers, and ball mills. This crucial step continues until the desired particle size specification is met.
Magnetic Separation:
Removing Metallic Impurities: To ensure purity, the ground material is subjected to magnetic separators which effectively eliminate residual iron particles and other metallic impurities.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina is meticulously sieved to segregate it into various grades based on particle size. This precise process employs vibrating screens and air classifiers.
Quality Control: Every batch is rigorously tested for its chemical composition, particle size distribution, and other quality metrics to ensure it aligns with stringent industry standards.
Unleash the Power of Versatility with White Fused Alumina (WFA)! Available in an extensive array of sizes, WFA is meticulously crafted to cater to the multifaceted demands of diverse industrial applications. Understanding the critical role particle size plays in performance, it's essential to select the optimal size tailored to your specific process needs. Explore the comprehensive range of typical white fused alumina sizes below:
Macro Grit Sizes:
Coarse Grit: Spanning from F8 to F220 (in alignment with FEPA standards)
Popular sizes encompass F12, F24, F36, F46, F60, F80, F100, F120, F150, F180, and F220, ensuring a perfect fit for every requirement.
Applications: Expertly engineered for heavy-duty grinding, cutting, and robust surface preparation tasks.
Micro Grit Sizes:
Fine Grit: Extending from F230 to F1200 (compliant with FEPA standards)
Favored sizes include F240, F280, F320, F360, F400, F500, F600, F800, and F1000, making precision work a breeze.
Applications: Perfect for precision grinding, expert lapping, and immaculate polishing.
Powder Form:
Ultra-fine powders boasting particle sizes from mere microns to sub-micron levels, crafted for the highest standards of accuracy.
Applications: Mastering high-precision polishing, fulfilling roles in specialty ceramics, enhancing coatings, and serving as an integral filler in various composite materials.
Choosing the Right Size:
Coarse Grit (F8 - F220): Designed for tasks demanding high material removal rates and intensive surface preparation, such as grinding high carbon steel and heavy-duty polishing.
Medium to Fine Grit (F230 - F1200): Tailored for applications where a perfect balance between material removal and surface finish quality is paramount, ideal for fine grinding, lapping, and precise polishing.
Ultra-Fine Powder: The ultimate choice for achieving an unparalleled smooth and precise finish, essential in the production of advanced ceramics, top-tier coatings, and catalyst carriers.
Selecting the right size of white fused alumina is pivotal to achieving exceptional performance in your specific application. Whether coarse grit is needed for heavy-duty grinding or ultra-fine powders for exacting precision applications, our range accommodates your every necessity. Achieve optimal outcomes by choosing the precise size for your abrasive, polishing, casting, coating, catalytic, ceramic, or refractory application.
Drums and Barrels:
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the trading sector, specializing in top-tier refractory materials and abrasive media. Our company seamlessly integrates industry and trade, supported by cutting-edge testing facilities and profound technical acumen. Nestled in Luoyang city, Henan province, our two factories boast an impressive 24-year legacy in the production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Harnessing the strength of our factory alliances, we proudly present a superior range of Cutting Wheels, Grinding Wheels, and Flap Discs, all offered at highly competitive prices. Our products have garnered widespread acclaim and trust, adeptly catering to the dynamic economic and social needs of the global market. Our unwavering dedication to quality and customer satisfaction ensures that our products consistently uphold the highest standards of excellence.
At Luoyang Frere, we cherish enduring partnerships and eagerly anticipate the opportunity to collaborate with your prestigious company. Our dedicated team stands ready to fulfill your needs and contribute meaningfully to your future triumphs, fostering mutual success in the evolving landscape of industry.
1. High-Quality Products & Competitive Pricing: At LUOYANG FRERE IMPORT AND EXPORT TRADING CO., LTD., we are dedicated to sourcing and supplying premium-grade abrasive and refractory materials that align with stringent international standards. We ensure superior performance, unmatched reliability, and diverse industrial applicability. By leveraging our robust relationships with leading manufacturers and our efficient supply chain management, we deliver products at highly competitive prices while maintaining impeccable quality.
2. Custom Solutions: We excel in offering bespoke solutions meticulously crafted to meet the unique requirements of our esteemed clients. This includes personalized packaging, precise product specifications, and adaptable delivery schedules, all curated to guarantee optimal satisfaction and unmatched convenience.
3. Expertise and Experience: Our team is composed of seasoned industry specialists, endowed with profound knowledge and extensive experience. This enables us to provide invaluable technical support and insightful guidance, empowering our customers to attain the best outcomes.
4. Quality Assurance: We uphold rigorous quality control protocols at every phase of our procurement and delivery operations. This commitment ensures that our products consistently meet and even exceed the highest quality standards, providing peace of mind to our clients.
5. Sustainability and Environmental Responsibility: Our commitment to sustainability and environmental stewardship is unwavering. We offer eco-friendly products and solutions that not only fulfill our customers' needs but also help them diminish their environmental footprint, supporting a greener future.
6. Customer-Centric Approach: At the heart of our operations is a steadfast customer-centric approach. We prioritize our clients' needs and preferences, delivering exceptional customer service and fostering long-term partnerships grounded in trust and mutual advantage.
At Frere company, we uphold a steadfast commitment to our customers, extending our responsibilities far beyond the initial purchase. Our all-encompassing after-sales service is meticulously crafted to guarantee your enduring satisfaction and triumph with our offerings. Discover the exceptional support you can anticipate when you select us as your premier abrasive and refractory solution partner:
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