Product Name: High-Performance Silicon Carbide (SiC) Ceramic Sleeve
Product Material: Sintered Silicon Carbide (SSiC), Reaction Bonded Silicon Carbide (RBSiC/SiSiC), or Nitride Bonded Silicon Carbide (NSiC).
Material Characteristics: Extreme hardness (approaching Diamond), High thermal conductivity, Excellent thermal shock resistance, Outstanding chemical resistance (pH 0-14), Superior oxidation resistance at temperatures up to 1600°C, High modulus of elasticity, Extremely low coefficient of thermal expansion.
Application Fields: Mechanical seal faces, Magnetic pump bearings and sleeves, Sand mill liners, Slurry pump bushings, Hydrocyclone liners, High-temperature radiant tube liners, Spray nozzles for desulfurization (FGD).
Application Industries: Biomedical (High-purity process equipment), Advanced Machinery (Heavy-duty abrasives), New Energy (Lithium battery powder milling), Fluid Control (Abrasive slurry handling), Electronic Engineering (Semiconductor wafer carriers), Aerospace (High-temperature propulsion components), Petrochemical (Corrosive crude processing), Broad Semiconductor (CMP slurry systems).
Processing Difficulties: Extreme hardness makes diamond-tool grinding slow and cost-intensive, Maintaining tight geometric tolerances (cylindricity and concentricity) on thin-wall sleeves, Controlling surface finish (Ra < 0.05μm) for rotating face seals, managing thermal stress during the sintering of extra-large diameter sleeves.
Processing Flow: Powder synthesis → Cold Isostatic Pressing (CIP) or Casting → Green machining → High-temperature vacuum/pressure sintering → Precision diamond grinding (ID/OD) → Mirror polishing and lapping → Ultrasonic flaw detection → CMM inspection → Secure packaging.
Delivery Period: Standard specifications: 20-35 days, Customized large-diameter or complex sleeves: 40-60 days.
Our Silicon Carbide Ceramic Sleeves are engineered for the most punishing industrial environments where alumina or metals fail prematurely. Featuring extreme hardness and a high thermal conductivity that effectively dissipates frictional heat, these sleeves are the gold standard for mechanical seals and pump bearings. Their unique ability to withstand the full range of chemical attacks (from strong acids to concentrated alkalis) makes them indispensable in chemical processing and mining. Whether handling abrasive ore slurries or high-purity semiconductor fluids, our SiC sleeves provide unmatched durability and operational safety.
Key Features:
Maximum Wear Resistance: Significantly outperforms tungsten carbide and alumina in high-abrasion applications.
Superior Thermal Dissipation: High thermal conductivity prevents localized overheating and seal failure.
Full pH Spectrum Stability: Resistant to almost all known chemical corrosive agents.
High-Temperature Strength: Maintains structural integrity and stiffness at temperatures exceeding 1300°C.
Zero Contamination: High-density, non-porous structure ensures no fluid absorption or particle shedding.
