焼結アルミナ
What Is Fused Alumina?
Fused Alumina (Al₂O₃) is a synthetic aluminum oxide material produced by melting high-purity bauxite or alumina powder in an electric arc furnace at temperatures exceeding 2,000°C. This extreme thermal process creates a dense, crystalline material with a highly ordered corundum structure — delivering a unique combination of hardness, toughness, and chemical inertness that naturally occurring minerals simply cannot match.
The result is a material with an Al₂O₃ purity typically ranging from 95% to over 99%, available in two primary forms: White Fused Alumina, prized for its higher purity and sharper cutting edges, and Brown Fused Alumina, valued for its toughness and cost efficiency. Both variants can be processed into a wide range of grit sizes and powders to suit specific application requirements.
Fused Alumina is widely recognized as a cornerstone material in the abrasives and refractories industries. Its exceptional physical properties make it indispensable in applications ranging from grinding wheels and sandblasting media to high-temperature kiln furniture and precision lapping compounds — wherever hardness, heat resistance, and durability are demanded.
Why Choose Fused Alumina?
- Exceptional Hardness With a Mohs hardness of 9, Fused Alumina ranks among the hardest industrial minerals available, delivering aggressive, efficient cutting and grinding performance across metals, ceramics, and composites.
- Outstanding Thermal Stability Fused Alumina maintains structural integrity at temperatures up to 1,900°C, making it a reliable material for refractory linings, kiln furniture, and other high-heat industrial environments.
-
High Chemical ResistanceIts dense corundum crystal structure provides excellent resistance to acids, alkalis, and molten metals, ensuring long service life in chemically aggressive processing environments.
-
Versatile Grit & Particle OptionsAvailable across a broad range of grit sizes — from coarse abrasive grains to ultrafine polishing powders — Fused Alumina adapts to diverse surface finishing and material processing needs.
-
Consistent Purity & Performance Controlled electric arc furnace production ensures reproducible Al₂O₃ content and crystal quality batch after batch, giving manufacturers the material consistency required for precision industrial applications.
-
Cost-Effective PerformanceCompared to premium superabrasives, Fused Alumina delivers exceptional hardness and durability at a competitive price point, making it the practical choice for high-volume industrial grinding and blasting operations.
業界が直面する課題
High Energy Consumption
The electric arc furnace process required to melt alumina at temperatures exceeding 2,000°C demands substantial energy input, directly driving up production costs and carbon footprint.
Raw Material Quality Dependency
Final product purity and crystal quality are highly sensitive to the grade of input bauxite or alumina, making consistent raw material sourcing a critical and ongoing challenge.
Limited Toughness
Despite its exceptional hardness, Fused Alumina is inherently brittle, making it prone to fracture under heavy impact loads — limiting its performance in applications requiring both hardness and toughness.
Dust & Fine Particle Management
Crushing and grading processes generate significant fine dust, posing both environmental compliance challenges and health risks that require stringent containment and filtration measures.
Particle Size Consistency
Achieving precise, uniform grit sizing across large production volumes is technically demanding, as inconsistent particle distribution can directly impact abrasive performance and product quality.
製品概要
アルミナ
DFA-F-MET/R100
アルミナ
DFA-F-MET/R300
アルミナ
DFA-F-MET/R500
アルミナ
WCO-F-CER/G100
アルミナ
WCO-F-AER/G500
アルミナ
BCO-F-CON/G100
アルミナ
BCO-F-AUT/G300
アルミナ
CCO-F-MET/R500
アルミナ
ZCO-F-AUT/G500
Why Use Our Fused Alumina
Superior Chemical Inertness
The dense corundum crystal structure provides strong resistance to acids, alkalis, and molten metal contact, ensuring material integrity and extended service life in chemically aggressive processing and metallurgical environments.
Versatile Particle Size Range
From coarse blasting grains to ultrafine polishing powders, Fused Alumina is available across a broad grit spectrum — offering flexible solutions for surface preparation, lapping, grinding, and advanced ceramic manufacturing.
Excellent Wear Resistance
The hard, dense grain structure resists rapid breakdown during abrasive operations, extending wheel and media service life, reducing replacement frequency, and lowering overall production costs in high-volume grinding environments.
関連アプリケーション
業界別ソリューション
梱包・物流サービス
安全でカスタマイズ可能な梱包
製品は、輸送中の清潔さと完全性を確保するため、耐久性があり防湿性のあるパウチまたはバルク容器に収納されるものとします。特殊なサイズや取り扱い要件に合わせた、カスタマイズされた梱包オプションもご用意しています。.
信頼性が高く、柔軟なグローバル配送
信頼できる物流パートナーと連携し、海上、航空、陸路の各輸送手段に対応した柔軟な配送体制を提供しています。世界中の目的地へ、迅速かつ安全に貨物を配送いたします。.
注文・サポートの専任調整
弊社では、注文の確定から最終出荷に至るまでの追跡および記録について、特別なサポートを提供しています。サプライチェーンの円滑な運用を保証するため、技術面および物流面でのサポートもご用意しております。.
あなたにぴったりの産業用ソリューションを見つけませんか？
ご注文方法！
詳細なご質問をお送りいただくか、お客様の活性炭のご要件に合わせたお見積もりをご依頼ください。.
