
16002 6002 6202 6302 16003 6003 6203 6303 6403 Zro2 Si3n4 Full Ceramic Deep Groove Ball Bearing
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 ℃.
The ceramic fiber tape suppliers, density of alumina ceramic tiles, alumina silicate ceramic sheet people will take the establishment of the highest quality service in the ceramic fiber tape suppliers, density of alumina ceramic tiles, alumina silicate ceramic sheet industry as the criterion, lead the market, and promote the civilized progress and development of the industry. In the face of difficulties, we should always be calm and enterprising, work together in the same boat and overcome difficulties. We abide by the corporate values of efficiency, integrity, cooperation and fairness. We build confidence with strength, create reputation with performance, and dance out our essence and brilliance in the increasingly fierce market competition. We strive to achieve the standard of superior products in every link, and provide customers with the most cost-effective products and technical services.
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.
After ten years of development, the company has formed a relatively rapid development foundation and a complete development system, and formed a strategic pattern with 16002 6002 6202 6302 16003 6003 6203 6303 6403 Zro2 Si3n4 Full Ceramic Deep Groove Ball Bearing development as the main line, multi-directional extension of the industrial chain, and gradually marching into industries closely related to the industry and actively encouraged by the state. We constantly strengthen our own corporate culture, to achieve product quality to customers, rights and interests to maintain the commitment of employees. We encourage the courage to innovate and give innovators the necessary tolerance to make the industry flourish.
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