Pressureless Sintered SSiC Mechanical Seal Rings with 1650°C Max Service Temp Zero Free Silicon and High Purity
Price:
200-500 yuan/kg
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
KeGu
Product Description
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.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shaanxi KeGu New Material Technology Co., Ltd
Location
5# Chaoyang Road,Weicheng Sub-district，Qinhan New City, Xixian New Area, Xi'an Shaanxi Province,China,712039
Contact Person
Yuki