Bulk Density: 3.1-3.3 g/cm³.
Flexural Strength: 600-800 MPa.
Appearance Color: Blackish gray.
Product Purity: 99.9%.
Common Specifications: φ55×20×15MM, 150×20×10MM, etc.
Silicon Nitride Ceramic Roller Ring Product Introduction
Silicon nitride ceramic roller rings are high-performance ceramic components made from silicon nitride (Si₃N₄) material, possessing excellent high-temperature resistance, corrosion resistance, and wear resistance. They are primarily used in metallurgy, machinery, chemical engineering, and other fields as key components such as guide rollers, rolling rollers, and mill rolls. Main features and technical advantages:
1. High-temperature resistance: Can be used up to 1400℃ in an oxidizing atmosphere, and up to 1850℃ in a neutral or reducing atmosphere.
2. Superior mechanical properties: Mohs hardness of 9 or higher; bending strength of 600-800 MPa; fracture toughness of 6-8 MPa·m¹/².
3. Chemical stability: Resistant to most inorganic acids and sodium hydroxide solutions below 30%; excellent chemical corrosion resistance.
4. Friction characteristics: Low coefficient of friction (0.02-0.1); possesses self-lubricating properties.
Application Fields
1. Metallurgical Industry: Guide rollers, rolling mill rolls, aluminum liquid conduits, etc.
2. Mechanical Manufacturing: Bearings, seals, pump plungers, etc.
3. Chemical Industry: Corrosion-resistant components.
4. Other Fields: Aerospace, automotive engines, precision instruments, etc.
Supports custom specifications.
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