
Precision Full 7X16X5si3n4 Si3n4 PTFE 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 market competitiveness of the thermocouple alumina ceramic tube, ceramic fiber drop warp tape, electric furnace heating element replacemen is directly related to whether we can improve the economic benefits of the enterprise. The company actively responds to the challenges brought about by the changes in the international market, continuously strengthens technological innovation and management innovation, and has achieved excellent results in difficult environments. We will always implement the concept of "people-oriented, customer first, mutual benefit and win-win". The company has always believed that the construction of institutional culture is an important part of the construction of corporate culture and is an inherent guarantee for practicing the core values and improving the level of corporate management.
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.
We insist on customer-oriented and are committed to providing credible Precision Full 7X16X5si3n4 Si3n4 PTFE Bearing and valuable services to each customer. We first ensure the health of corporate culture and team vitality, and then actively promote the healthy cooperation of our partner circle. In addition to the commitment to continue to strengthen the product of the performance, we also provide our clients with the most comprehensive technology services! We hope to have the opportunity to cooperate with you sincerely!
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