Product Name: Industrial Alumina (Al_2O_3) Ceramic Rod
Product Material: 95% - 99.8% High-Purity Alumina ($Al_2O_3$), optional Ceramic-to-Metal transition components.
Material Characteristics: Extreme hardness (Mohs 9), High temperature resistance (up to 1750°C), Exceptional wear and corrosion resistance, Superior electrical insulation at all temperatures, High compressive strength, Excellent chemical stability, Low thermal expansion.
Application Fields: Electrical insulation pins, Ceramic standoffs and supports, High-temperature furnace components, Pump plungers and pistons, Laboratory stirring rods, Laser gain medium supports, Precision wear-resistant pins.
Application Industries: Biomedical (Surgical tools), Advanced Machinery (Heavy-duty wear parts), New Energy (Lithium battery equipment), Fluid Control (Micro-metering pumps), Electronic Engineering (Insulating hardware), Aerospace (Sensor housings), Petrochemical (Corrosive fluid injection), Broad Semiconductor (Wafer handling components).
Processing Difficulties: Achieving micron-level dimensional and geometric tolerances (circularity, straightness), Minimizing surface micro-cracks during high-speed grinding, Controlling sintering shrinkage to ensure uniform density, Maintaining consistent surface finish across large batches.
Processing Flow: Raw material preparation → Cold Isostatic Pressing (CIP) or Extrusion → Pre-sintering machining (Green machining) → High-temperature sintering (1600°C - 1800°C) → Precision diamond cylindrical grinding → Step-by-step mirror polishing (if required) → Dimensional and roughness inspection → Secure packaging.
Delivery Period: Standard rod sizes: 7-15 days, Customized high-precision or extra-long rods: 25-40 days.
The Alumina Ceramic Rod is the workhorse of structural ceramics, offering a balanced combination of mechanical strength, thermal stability, and cost-effectiveness. Our alumina rods provide an inert, non-conductive, and wear-resistant solution for environments where metals and polymers fail. With purity levels up to 99.8%, they are ideal for high-purity applications such as semiconductor processing and laboratory equipment. Whether used as an insulating pin in a high-voltage assembly or a durable plunger in a chemical pump, our alumina rods ensure consistent performance under harsh industrial conditions.
Key Features
Exceptional Hardness: Second only to diamond, providing unrivaled resistance to abrasion and scratching.
Thermal Endurance: Operates continuously at high temperatures without losing mechanical integrity.
Superior Insulation: High dielectric strength makes it a reliable choice for high-voltage and RF applications.
Chemically Inert: Withstands most industrial acids, alkalis, and organic solvents.
Precision Surface Finish: Available with ground or mirror-polished surfaces (Ra < 0.1μm) to minimize friction.
