
Customized Heat Cooling Sintered Si3n4 Ceramic Sleeve Disc Ring
Si3N4 Ceramics is a new type of non-metallic ceramic material. It is characterized by high strength at room temperature and high temperature, and the strength of Si3N4 can be maintained at 1200 ℃.
Our company adopts a new concept of service operation, based on the elite professional team and keen scientific analysis as the means to provide all kinds of customers with value-added molybdenum disilicide heating elements price, SIC Heating Elements, alumina ceramic lining tile and tracking services. We focus on promoting "talent, research and development, manufacturing, marketing, brand, cooperation" six internationalization development strategy. We hope that our company will always be active, constantly adapting to strategic and environmental changes to create first opportunities.
Product Description
Si3N4 Ceramics is a new type of non-metallic ceramic material. One of the popular product of Si3N4 ceramics is Si3N4 tube. The tubes are mainly used in conjunction with thermocouples to protect them. It allows the thermocouple to operate properly in special environments and to resist high pressures and high flow rates.
Process Method
It uses silicon powder as raw material and is first made into the desired shape using the usual molding method. Initial nitriding is done in nitrogen at 1200°C, so that part of the silicon powder reacts with nitrogen to form silicon nitride. This way the whole body already has some strength. It is then nitrided a second time in a high-temperature furnace at 1350°C to 1450°C to react with the silicon nitride.
Specifications
Thermocouple protection tube: diameter Φ12-80mm, length 600-1800m

Data Sheet
Items | Data |
Sintering method | gas pressure sinter |
Density | >3.2g/cm3 |
Si3N4 content | >92% |
Flexural strength | >750Mpa |
Compressive strength | >1500Mpa |
Thermal conductivity (W/mk) | >22 |
Porosity | 0 |
Thermal expansion coeff. (RT-1000℃) | 3.2 |
Max temperature in air | 1400℃ |
Hardness (HRA) | >92 |
Q&A
1. How long is the service time of Si3N4 ceramics?
It will be different as per your application. The general period is 25-30days.
2. What is the payment terms?
Our payment terms are T/T, L/C or as per your request.
Our company has excellent production equipment, mature technology, stable Customized Heat Cooling Sintered Si3n4 Ceramic Sleeve Disc Ring quality and reasonable price. Our company introduces international advanced equipment and uses the latest technology and processing and testing equipment to make products meticulously. We insist to the road of independent innovation, and strive to develop in the direction of high-precision quality and performance based on a high starting point.
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