Silicon Nitride Riser Tube with Extended Service Life, High-Temperature Stability, and Thermal Shock Resistance for Aluminum Casting
Price:
200-500 yuan/kg
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
KEGU
Product Description
Silicon Nitride (Si3N4) Riser Tubes for Aluminum Casting
Product Overview
Our premium silicon nitride riser tubes are engineered for superior performance in aluminum casting applications. Manufactured through advanced isostatic pressing and gas pressure sintering technology, these tubes deliver exceptional density, unmatched high-temperature mechanical strength, and extended operational lifespan—outperforming conventional alternatives by over 10 times.
Key Advantages in Aluminum Casting Operations
- Extended Service Life: 10x longer lifespan than traditional riser tubes
- Enhanced Casting Quality: Significantly reduces air leakage and slag formation
- Reduced Operational Costs: Minimizes downtime and replacement frequency
- Consistent Performance: Maintains dimensional stability under extreme thermal cycling
Technical Specifications
| Property | Unit | Value Range |
|---|---|---|
| Density | g/cm³ | 3.20-3.26 |
| Apparent Porosity | % | 0-0.1 |
| Elastic Modulus | GPa | 300-320 |
| Compressive Strength | MPa | >1500 |
| Vickers Hardness (HV0.5) | GPa | 15-16 |
| Fracture Toughness | MPa*m¹/² | >0.8 |
| Flexural Strength | MPa | >700 |
| Poisson's Ratio | - | 0.25 |
| Thermal Expansion Coefficient | *10⁻⁶/°C | 3.1-3.3 |
| Weibull Modulus | - | 11-13 |
| Thermal Conductivity | W/(m*K) | 20-25 |
| Electrical Resistivity | Ω*cm | 10¹⁴ |
Product Dimensions
| Size Parameter | Specification |
|---|---|
| Maximum Outer Diameter | 430 mm |
| Wall Thickness | 10-15 mm |
| Maximum Length | 1350 mm |
Custom dimensions available upon request for specialized applications
Primary Applications
Low-Pressure & Gravity Casting
- Aluminum automotive wheels
- Engine blocks and cylinder heads
- Structural automotive components
Precision Casting
- Aerospace turbine components
- High-performance heat sinks
- Defense and aviation parts
Continuous Casting
- Aluminum slabs and billets
- Rods and bar stock
- Specialty alloy profiles
Material Properties & Benefits
Exceptional Thermal Shock Resistance
Withstands rapid temperature fluctuations without cracking or degradation, ensuring reliable performance through multiple casting cycles.
Withstands rapid temperature fluctuations without cracking or degradation, ensuring reliable performance through multiple casting cycles.
High-Temperature Stability & Low Thermal Expansion
Maintains structural integrity at elevated temperatures with minimal dimensional change (CTE: 3.1-3.3 *10⁻⁶/°C).
Maintains structural integrity at elevated temperatures with minimal dimensional change (CTE: 3.1-3.3 *10⁻⁶/°C).
Superior Corrosion Resistance & Non-Wetting Surface
Inert to molten aluminum with excellent non-wetting properties, preventing metal adhesion and ensuring clean separation.
Inert to molten aluminum with excellent non-wetting properties, preventing metal adhesion and ensuring clean separation.
Extended Service Life & Reduced Maintenance
Durable construction minimizes wear and tear, reducing replacement frequency and associated operational downtime.
Durable construction minimizes wear and tear, reducing replacement frequency and associated operational downtime.
Performance Comparison
Compared to traditional ceramic and metallic riser tubes, our silicon nitride solutions offer:
- 10* longer operational lifespan
- 50% reduction in maintenance requirements
- 30% improvement in casting quality
- 25% decrease in energy consumption through improved thermal efficiency
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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