| Customization: | Available |
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| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
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White fused alumina is a remarkable abrasive material lauded for its exceptional hardness and unparalleled purity. It is the perfect choice for grinding high carbon steel, high-speed steel, and chilled steel, delivering outstanding performance and efficiency. Furthermore, it is widely favored as a polishing material, ensuring an impeccable finish across 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: Our journey begins with bauxite, a vital raw material renowned for its remarkable alumina (Al2O3) concentration. We meticulously select premium bauxite to guarantee optimal alumina levels and minimal impurities, setting the stage for superior product quality.
Iron filings or scrap iron: These are ingeniously incorporated into the mixture, playing a pivotal role in the reduction process during the fusion stage.
Anthracite coal: This essential component serves as a robust reducing agent, facilitating the necessary chemical transformations.
Fusion:
Electric Arc Furnace (EAF): In this phase, the expertly prepared mixture is introduced into an electric arc furnace. Here, intense temperatures of approximately 2000-2200°C (3632-3992°F) are achieved via electric arcs generated between carbon electrodes.
Reduction and Fusion: Within this extreme heat, alumina from bauxite melts, interacting with anthracite's carbon to form molten alumina. Concurrently, iron and other impurities are effectively reduced and separated.
Cooling:
Cooling the Molten Alumina: The transition from molten alumina to solid form is a critical step. The molten substance is methodically poured into molds or onto a cooling floor, where controlled cooling is paramount to securing the perfect crystal structure and size.
Formation of Ingots: As cooling progresses, the material solidifies into substantial ingots or blocks, culminating in the formation of fused alumina.
Crushing and Grinding:
Primary Crushing: Once cooled, the robust ingots undergo an initial breakdown process using powerful jaw crushers or similarly effective machinery.
Secondary Crushing and Grinding: The journey continues as the material is subjected to additional crushing and grinding, employing cone crushers, roll crushers, and ball mills until the precisely desired particle size is obtained.
Magnetic Separation:
Removing Metallic Impurities: To ensure purity, the ground material is meticulously passed through magnetic separators, which adeptly extract any lingering iron particles and other metallic impurities.
Sieving and Classification:
Particle Size Distribution: In this step, the crushed and purified alumina is expertly sieved to categorize it into various grades based on particle size. This precise classification is achieved using state-of-the-art vibrating screens and air classifiers.
Quality Control: Every batch undergoes rigorous testing for chemical composition, particle size distribution, and other critical quality parameters, ensuring it aligns with and exceeds industry standards.
White Fused Alumina (WFA) is available in an extensive range of sizes, perfectly crafted to fulfill the diverse needs across various industrial domains. The size of WFA particles is a critical factor that greatly influences their effectiveness, making it essential to select the ideal size tailored for specific applications. Below, you'll find the typical sizes in which our premium white fused alumina is offered:
Macro Grit Sizes:
Coarse Grit: Spanning from F8 to F220, adhering to FEPA standards
Our most sought-after sizes include F12, F24, F36, F46, F60, F80, F100, F120, F150, F180, and F220.
Ideal Applications: Perfect for heavy-duty grinding, cutting, and robust surface preparation tasks.
Micro Grit Sizes:
Fine Grit: Ranges from F230 to F1200, conforming to FEPA standards
Popular sizes include F240, F280, F320, F360, F400, F500, F600, F800, and F1000.
Key Applications: Precision grinding, intricate lapping, and high-quality polishing.
Powder Form:
Ultra-fine powders with minute particle sizes, ranging from a few microns down to sub-micron levels.
Core Applications: High-precision polishing, specialty ceramics, advanced coatings, and as a filler in various composite materials.
Choosing the Right Size:
Coarse Grit (F8 - F220): Ideally suited for tasks requiring high material removal rates and rigorous surface preparation, such as grinding high carbon steel and heavy-duty polishing.
Medium to Fine Grit (F230 - F1200): Perfect for applications needing a harmonious balance between material removal and superior surface finish quality, ideal for fine grinding, meticulous lapping, and precision polishing.
Ultra-Fine Powder: The ultimate choice for scenarios demanding an impeccably smooth and precise finish, such as in the creation of advanced ceramics, elite coatings, and catalyst carriers.
Selecting the appropriate size of white fused alumina is vital for achieving unparalleled performance in your unique applications. Whether it's for coarse grit in hefty grinding or ultra-fine powders for intricate precision work, white fused alumina is available in a spectrum of sizes to cater to your exact needs. Ensure supreme results by choosing the perfect size for your abrasive, polishing, casting, coating, catalytic, ceramic, or refractory project.
Drums and Barrels:
Luoyang Frere Import and Export Trading Co., Ltd. stands as a beacon of excellence in the trading sector, dedicated to the specialized fields of refractory materials and abrasive media. Seamlessly blending industrial prowess with commercial acumen, we are equipped with state-of-the-art testing facilities and fortified by substantial technical know-how. Our duo of factories, strategically located in the heart of Luoyang city, Henan province, leverage over 24 years of meticulous experience in producing the finest Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Capitalizing on our robust and dynamic factory alliances, Luoyang Frere offers an exclusive range of illustrious Cutting Wheels, Grinding Wheels, and Flap Discs at exceptionally competitive prices. Our products have earned widespread acclaim and trust, adeptly catering to the swiftly evolving economic and societal needs of the marketplace. We are unwavering in our commitment to superior quality and customer satisfaction, ensuring that our offerings consistently set the benchmark for excellence in the industry.
At Luoyang Frere, we deeply value the essence of long-term collaborations and are enthusiastic about the possibility of partnering with your esteemed company. Our dedicated team is poised to support your unique needs and is committed to contributing to your successful endeavors in the near future.
1. High-Quality Products Paired with Competitive Pricing: We pride ourselves on sourcing and supplying top-tier abrasive and refractory materials that adhere to stringent international standards. Our products ensure outstanding performance and reliability across a variety of industrial applications. By leveraging our robust partnerships with manufacturers and harnessing our efficient supply chain management, we offer highly competitive pricing without ever compromising on quality.
2. Custom Solutions: We excel in delivering bespoke solutions tailored to meet the specific requirements of our clients. This includes personalized packaging, precise product specifications, and flexible delivery schedules, all designed to ensure maximum satisfaction and convenience for our customers.
3. Expertise and Experience: Our team is composed of industry veterans who possess extensive knowledge and experience. This enables us to provide invaluable technical support and expert guidance to our customers, ensuring their needs are met with precision and expertise.
4. Quality Assurance: Our commitment to quality assurance is unwavering. We implement rigorous quality control measures at every phase of the procurement and delivery process, ensuring that our products consistently meet the highest quality standards.
5. Sustainability and Environmental Responsibility: We are deeply committed to sustainability and environmental responsibility. Our offerings include eco-friendly products and solutions designed to help our customers effectively reduce their environmental impact.
6. Customer-Centric Approach: Our approach is inherently customer-centric. We prioritize the needs and preferences of our clients, delivering exceptional customer service. Our goal is to build enduring partnerships founded on trust and mutual benefit.
At Frere company, we are committed to maintaining a strong relationship with our customers, long after the initial purchase. Our exemplary after-sales service is meticulously crafted to ensure your ongoing satisfaction and optimal success with our products. By selecting us as your trusted supplier for abrasives and refractories, you can expect unparalleled support and assistance:
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