High Density High Strength Silicon Nitride Sealing Pipe and Valve with High Thermal Shock Resistance
Price:
200-500 yuan/kg
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
KEGU
Product Description
Silicon Nitride (Si3N4) Sealing Pipe & Sealing Valve
High-performance silicon nitride ceramic materials developed for the aluminum industry offer significantly improved thermal and mechanical properties compared to similar products. This innovation brings revolutionary progress to aluminum industrial equipment, particularly in "L-shaped high thermal conductivity submerged heating" applications.
The exceptional high-temperature strength of silicon nitride ceramics ensures long-term durability under frequent operating conditions. Due to the material's brittleness, proper design and installation of lifting transmission devices is essential to avoid mechanical shocks.
Key Advantages
- The high density, strength, and thermal shock resistance make silicon nitride ceramics the optimal choice for sealing tubes in low pressure die casting applications.
- Superior wear resistance compared to aluminum titanate and alumina ceramics ensures long-term airtightness of the sealed tube.
Silicon Nitride Technical Specifications
| Main component | 99%Al2O3 | S-SiC | ZrO2 | Si3N4 |
|---|---|---|---|---|
| Physical Property | ||||
| Density | 3.9 g/cm3 | 3.1 g/cm3 | 6 g/cm3 | 3.2 g/cm3 |
| Water Absorption | 0% | 0.1% | 0% | 0.1% |
| Sinter Temperature | 1700°C | 2200°C | 1500°C | 1800°C |
| Mechanical Property | ||||
| Rockwell Hardness | 1700 HV | 2200 HV | 1300 HV | 1400 HV |
| Bend Strength | 3500 kgf/mm2 | 4000 kgf/mm2 | 9000 kgf/mm2 | 7000 kgf/mm2 |
| Compression Intensity | 30000 Kgf/mm2 | 20000 Kgf/mm2 | 20000 Kgf/mm2 | 23000 Kgf/mm2 |
| Thermal Property | ||||
| Maximum working temperature | 1500°C | 1600°C | 1300°C | 1400°C |
| Thermal expansion coefficient (0-1000°C) | 8.0*10-6/°C | 4.1*10-6/°C (0-500°C) 5.2*10-6/°C (500-1000°C) |
9.5*10-6/°C | 2.0*10-6/°C (0-500°C) 4.0*10-6/°C (500-1000°C) |
| Thermal Shock resistance | 200°C | 250°C | 300°C | 400-500°C |
| Thermal Conductivity | 31 W/m.k (25°C) 16 W/m.k (300°C) |
100 W/m.k | 3 W/m.k | 25 W/m.k |
| Electrical Property | ||||
| Resisting rate of Volume | >1012 ◎.cm | 106-108 ◎.cm | >1010 ◎.cm | >1011 ◎.cm |
| Insulation Breakdown Intensity | 18 KV/mm | semiconductor | 9 KV/mm | 17.7 KV/mm |
| Dielectric Constant (1 MHz) | 10 (E) | - | 29 (E) | 7 (E) |
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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