Product Name:
Alumina Ceramic Stator Structural Component
Product Material:
High-Purity Alumina Ceramic (Al₂O₃ 99.6%-99.9%). For critical areas subjected to high impact or cyclic loading, Zirconia Toughened Alumina (ZTA) can be applied for localized reinforcement.
Material Characteristics:
Ultra-high hardness (Mohs hardness 9) and exceptional wear resistance, Excellent chemical corrosion resistance (resists strong acids, alkalis, organic solvents, and salts), High rigidity and dimensional stability, Good electrical insulation and dielectric strength, Low friction coefficient and low media adhesion, Surfaces can achieve ultra-high smoothness (Ra < 0.05 µm), Material is pure, non-magnetic, with no risk of metal ion leaching, Excellent thermal shock resistance.
Application Fields:
Ceramic stators/housings for rotary positive displacement pumps (e.g., gear pumps, screw pumps, peristaltic pumps), Precision stator cavities for metering pumps, Stationary end covers and port plates for fluid machinery, Corrosion-resistant pump body structural components in semiconductor wet process equipment, Pumping units for conveying highly abrasive and corrosive media in chemical processes.
Application Industries:
Fluid Control, Semiconductor Manufacturing, Petrochemical, Biomedical (Pharmaceutical equipment, dialysis machines), Advanced Mechanical Equipment, New Energy (Electrolyte transfer).
Processing Difficulties:
Machining stator structures with complex curved surfaces (e.g., helical surfaces, involute profiles), high-precision internal cavities, and precision porting holes; Ensuring extremely high form accuracy, positional accuracy, and ultra-low surface roughness of the rotor-stator mating surfaces to achieve efficient sealing and low wear; Controlling uniform shrinkage and deformation during sintering of complex structural parts with thin walls and multiple features; Achieving efficient, high-precision machining of deep holes and irregular flow channels while ensuring inner wall smoothness; Ensuring cumulative tolerance control during multi-component assembly to guarantee the fit and performance of the entire pumping unit.
Processing Flow:
Fine classification and granulation of high-purity alumina powder → Cold Isostatic Pressing (CIP) for green body forming → Precision CNC turning/milling of green body (pre-forming complex cavities) → High-temperature sintering → Rough grinding to establish datum surfaces → High-rigidity CNC machine for precision contour grinding of internal cavities → Ultrasonic-assisted precision drilling/polishing of fine flow channels → Ultra-precision grinding of key mating surfaces → Full dimensional and geometric tolerance inspection via Coordinate Measuring Machine (CMM) → Surface roughness and profilometer inspection → Performance pairing test (with rotor) → Ultrasonic cleaning and dust-proof packaging
Delivery Period:
Standard stator components with conventional internal cavities: 45-70 days
Custom components with complex curved surfaces (e.g., screw stators), high-precision pairing requirements, or integrated multi-channel designs: 75-130 days
The Alumina Ceramic Stator Structural Component is a core static part for building high-reliability, long-life fluid transfer equipment designed for extreme operating conditions. As the key component that directly mates with the moving part (rotor) in pumps or fluid motors, the stator must withstand continuous friction, pressure impact, and chemical media erosion. Stators manufactured from high-performance alumina ceramic provide solutions for various demanding pumping applications that are unattainable with traditional metals or polymers, thanks to their unparalleled hardness, wear resistance, and chemical inertness. This achieves fundamental breakthroughs in equipment longevity, precision, and maintenance costs.
Key Features:
Ultimate Wear Life and Operational Stability – The extremely high hardness of alumina ceramic ensures that the inner cavity surface of the stator experiences almost no wear under long-term, high-speed rotational friction from the rotor, maintaining the precise initial mating clearance over time. This fundamentally solves issues like increased internal leakage, decreased volumetric efficiency, and output pressure fluctuations caused by wear, ensuring equipment performance remains stable throughout its entire lifecycle and significantly reducing downtime for maintenance.
Superior Chemical Compatibility and Media Purity Assurance – The material exhibits outstanding resistance to a wide range of industrial chemicals, acids, alkalis, and solvents, making it particularly suitable for conveying corrosive, high-purity, or metal-ion-sensitive media. Its dense, non-porous structure and extremely low ion leaching characteristics eliminate the risk of media contamination and prevent adverse reactions between the material and the fluid, perfectly meeting the requirements of semiconductor, pharmaceutical, and food-grade applications.
Precision Fluid Dynamic Profile and Efficient Sealing – Thanks to the excellent machinability of ceramics, complex stator inner cavity profiles (e.g., the helical surface of a screw pump) can be manufactured with high precision to achieve optimized fluid propulsion and pressure build-up. Combined with nano-level surface smoothness, this minimizes fluid flow resistance, internal turbulence, and shear, enabling highly efficient, low-pulsation smooth transfer, and ensuring reliable, low-friction dynamic sealing with the rotor.
