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{"title":"14*11 Pressureless Sintered SiC Roller Long Service Life","imgUrl":"https:\/\/img.chinax.com\/nimg\/4a\/4f\/3a1b020de27f6492ed960ccdb4f9-200x200-1\/14_2a11_pressureless_sintered_sic_roller_long_service_life.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Price":"Negotiable","Place of Origin":"China","Packaging Details":"Strong wooden box for Global shipping"}}
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{"title":"Black Silicon Carbide Refractory Bricks with High-Temp Abrasion and Thermal","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/0f\/ffaec3f17d4bc47603a77361b043-200x200-1\/black_silicon_carbide_refractory_bricks_with_high_temp_abrasion_and_thermal_shock_resistance_for_extreme_industrial_use.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
{"title":"High-Performance Silicon Carbide Rollers with 1650\u00b0C Service Temperature, 196 W","imgUrl":"https:\/\/img.chinax.com\/nimg\/0a\/3c\/31e233b3a869adadec6c4d58d5fb-200x200-1\/high_performance_silicon_carbide_rollers_with_1650_c2_b0c_service_temperature_2c_196_w_2fm_2ak_thermal_conductivity_2c_and_380mpa_.jpg","attrs":{"Delivery Time":"Negotiable","Usage":"Industry Usage","Chemical Composition":"Al2O3, SiO2","Sic Content":"85%"}}
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Pressureless Sintered Silicon Carbide (SSiC) Mechanical Seal Rings | For Extreme Service
Our Pressureless Sintered Silicon Carbide (SSiC) Mechanical Seal Rings represent the pinnacle of advanced ceramic engineering for severe-duty applications. Manufactured without applied pressure at ultra-high temperatures, they achieve a fully dense, pore-free microstructure with zero free silicon. This results in unparalleled chemical purity, exceptional thermal stability, and superior mechanical strength, making them the definitive choice for sealing in aggressive chemical, high-purity, and high-temperature environments where other materials fail.
Key Features & Superior Advantages
Zero Free Silicon & High Purity: The pressureless sintering process ensures a binder-free, contaminant-free composition, which is critical for semiconductor and high-purity processes where metallic or silicon contamination is unacceptable.
Exceptional Wear & Abrasion Resistance: With an ultra-high Vickers hardness of 2350 kg/mm², these rings offer outstanding resistance to abrasive slurries and mechanical erosion, significantly extending service life.
Outstanding Chemical Inertness: They exhibit superb resistance to a wide range of corrosive media, including strong acids, alkalis, and oxidizers, ensuring long-term reliability in chemical processing.
Superior Thermal Shock Resistance: A low coefficient of thermal expansion (4.0 * 10⁻⁶/K) and high thermal conductivity enable them to withstand rapid temperature changes exceeding Δ T 350°C without cracking.
Excellent High-Temperature Capability: Maintain structural integrity and mechanical strength at temperatures up to 1650°C in air, making them ideal for furnace applications and high-temperature processes.
Technical Specifications at a Glance
Property
Unit
SSiC Value
Composition: SiC
Vol%
≥ 98
Density
g/cm³
≥ 3.06
Open Porosity
Vol%
≈ 0
Vickers Hardness (HV1)
kg/mm²
2350
Flexural Strength @ 20°C
MPa
320 - 400
Thermal Conductivity @ 20°C
W/(m*K)
196
Modulus of Elasticity
GPa
410
Max. Service Temp (in air)
°C
1650
Thermal Shock Resistance (ΔT)
°C
> 350
Critical Applications Across Industries
Chemical Processing: Seals for pumps and valves handling concentrated acids, alkalis, and aggressive solvents.
Semiconductor & High-Purity: Manufacturing equipment where eliminating contamination from free silicon is paramount.
Thermal Processing: Components for furnaces, radiant tubes, and high-temperature fan seals.
Abrasive & Slurry Services: Pumps and mixers handling particulate-laden fluids, such as in mining or wastewater treatment.
Manufacturing Excellence
These rings are produced by pressing α-SiC powder with specialized additives, which then undergoes a high-temperature reaction sintering process. This creates a fully densified β-SiC structure, delivering the superior properties that define our SSiC material.
The Ultimate Value Proposition
Upgrade to our SSiC mechanical seal rings for unmatched performance and cost savings in extreme conditions. They deliver:
Maximum Uptime: Reduced unplanned maintenance and longer seal life.
Total Reliability: Consistent performance in corrosive, abrasive, and high-temperature scenarios.
Process Integrity: Guaranteed purity for sensitive applications.
Customization Services
We offer fully customizable dimensions to meet the precise requirements of your specific application and equipment.
