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Silicon nitride riser tube is the key part of the low pressure casting. It is the ideal materials of
the metallurgy industry because of excellent characteristics. After using, it can not only improve
the quality of the casting products but also reduce the cost. The service life is 5-20 times longer
than the traditional tube, so the replacement of the riser tube is reduced and the continuous of the
production is ensured.
Types |
Gas Si3N4 |
Density |
>3.2g/cm3 |
Si3N4 content |
>92% |
Flexural strength |
>600Mpa |
Compressive strength |
>1500Mpa |
Thermal conductivity(W/mk) |
16-22 |
Porosity |
0 |
Thermal expansion coeff.(RT-1000℃) |
3.2 |
|
Max temperature In air |
1400℃ |
Hardness(HRA) |
>92 |
1. Moulding: Cold isostatic pressing(CIP)
2. Sintering: GPSN/RSSN
3. High strength and good compactness
4. Low thermal expansion coefficient
5. Excellent thermal shock resistance
6. No wetting by molten aluminum and non-ferrous metal
7. Good corrosion resistance
Common size:
Inner diameter: φ50~200mm.
Length: 500~1100mm.
We can also prodcue other sizes according to your drawing.
Relevant Recommendation
Silicon Nitride Thermocouple Protection Tube
Silicon Nitride Heater Sheath
Silicon Nitride Degassing Rotor
Relevant Website:
Logistics:
1. by air
2. by express
3. by sea
We are the most largest factory for silicon niride products, aluminum titanate products and
alumina products in China, there’s more than 100 people and 8 production lines in our company.
Our products have been sold to all over the world.
Welcome to visit our factory!
Send Inquiry to This Supplier
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