
25X37X7mm Zro2 /Si3n4 Full Ceramic Ball Bearing 6805 Ce
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 ℃.
We focus on product innovation, focus on improving product quality, and produce quality alumina ceramic tile manufacturers, nano ceramic beads heat limit, ceramic bubbler pipe by optimizing the allocation of resources, with specialized division of labor and specialized teams. Our company constantly strive to make marketing become a tool to help us realize our own value multiplication. Our purpose is '100% client fulfillment by our product high-quality, price tag &, our staff service' and enjoy a superb reputation amongst clientele.
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.
In the production process of 25X37X7mm Zro2 /Si3n4 Full Ceramic Ball Bearing 6805 Ce, strict process control and quality inspection system are implemented. The mission of our company is to innovate without forgetting environmental protection, to benefit the enterprise without forgetting to benefit customers. Together, our team strives to achieve sustainable growth in our business.
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