High Thermal Shock Resistance Silicon Nitride Sealing Pipe and Si3N4 Sealing Valve with High Density for Low-Pressure Die Casting
Basic Properties
Place of Origin:
China
Brand Name:
KEGU
Model Number:
Customizable
Trading Properties
Price:
200-500 yuan/kg
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2,000 pcs/month
Product Summary
Silicon Nitride (Si3N4) Sealing Pipes & Valves for Low-Pressure Die Casting Engineered for extreme industrial environments, our high-performance silicon nitride ceramic sealing components deliver unmatched durability and reliability in aluminum processing applications. These materials offer superior ...
Product Details
Highlight:
Si3N4 Sealing Pipe
,Silicon Nitride Sealing Pipe
,Si3N4 Sealing Valve
Material:
Silicon Nitride
Composition:SiC:
＞85%
Color:
Black
Density:
3.20-3.26g/cm3
Max. Service Temp:
1450℃
Flexural Strength:
250MPa
Sample:
Customizable
Chemical Stability:
High
Apparent Porosity:
0-0.1%
Elastic Modulus:
300-320GPa
Compression Strength:
>1500MPa
Vickers Hardness(hv0.5):
15-16GPa
Thermal Conductivity:
20-25W/(m.k)
Specific Resistivity:
10^14Ω·cm
Product Description
Silicon Nitride (Si3N4) Sealing Pipes & Valves for Low-Pressure Die Casting
Engineered for extreme industrial environments, our high-performance silicon nitride ceramic sealing components deliver unmatched durability and reliability in aluminum processing applications. These materials offer superior thermal and mechanical properties, forming the foundation for innovative equipment like the L-shaped high thermal conductivity submerged heating appliance.
Why Silicon Nitride for Sealing Applications?
Unmatched Performance:
- Optimal for Low-Pressure Die Casting: High density, strength, and exceptional thermal shock resistance (ΔT 400-500°C) make Si3N4 the premier choice for sealing tubes and valves.
- Superior Wear Resistance: Outperforms aluminum titanate and alumina ceramics, ensuring long-term airtightness and reducing maintenance frequency.
- Excellent High-Temperature Strength: Maintains structural integrity under frequent thermal cycling, ensuring prolonged service life.
Design & Installation Note: While silicon nitride offers exceptional strength, its ceramic nature requires careful handling. Avoid large mechanical shocks by ensuring proper design and installation of lifting and transmission equipment.
Technical Property Comparison: Silicon Nitride vs. Alternative Materials
| Category | Property | Unit | 99% Al₂O₃ | S-SiC | ZrO₂ | Si₃N₄ |
|---|---|---|---|---|---|---|
| Physical | Density | g/cm³ | 3.9 | 3.1 | 6.0 | 3.2 |
| Water Absorption | % | 0 | 0.1 | 0 | 0.1 | |
| Physical | Sintering Temperature | °C | 1700 | 2200 | 1500 | 1800 |
| Mechanical | Hardness (HV) | HV | 1700 | 2200 | 1300 | 1400 |
| Flexural Strength | MPa | ~343 | ~392 | ~882 | ~686 | |
| Compressive Strength | MPa | ~2942 | ~1961 | ~1961 | ~2255 | |
| Thermal | Max Working Temperature | °C | 1500 | 1600 | 1300 | 1400 |
| Thermal Expansion Coefficient (0-1000°C) | 10⁻⁶/°C | 8.0 | 4.1 (0-500°C) | 9.5 | 2.0 (0-500 °C) | |
| 5.2 (500-1000°C) | 4.0 (500-1000 °C) | |||||
| Thermal Shock Resistance | ΔT (°C) | 200 | 250 | 300 | 400-500 | |
| Thermal Conductivity (25°C) | W/m*K | 31 | 100 | 3 | 25 | |
| Thermal | Thermal Conductivity (300°C) | W/m*K | 16 | 100 | 3 | 25 |
| Electrical | Volume Resistivity (20°C) | Ω*cm | >10¹² | 10⁶-10⁸ | >10¹⁰ | >10¹¹ |
| Dielectric Strength | kV/mm | 18 | Semiconductor | 9 | 17.7 |
Key Benefits for Your Operation:
- Extended Component Lifespan: Reduced downtime and replacement costs.
- Consistent Sealing Performance: Maintains airtight integrity under thermal stress.
- Enhanced Process Reliability: Minimizes leaks and process interruptions in die casting.
Applications: Sealing pipes, valves, and bespoke components for low-pressure die casting machines, aluminum transfer systems, and high-temperature industrial fluid handling.
Miss. Scarlett.S
Deputy Head of Foreign Trade Department
- Email: scarlett.s@kegugroup.com
- Tel: 8616602956098
- WhatsApp: 8613390790728
-
WeChat:
Scarlettseren533
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