
Zys Full Ceramic Ball Bearing Deep Groove Ball Bearing for Skate 609CE
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 ℃.
During this time we have established our vast business, offering the highest level of service and ceramic heat pads for welding, ceramic fiber cloth for sale, electric water heater heating element at the most competitive prices. Relying on our leading international concepts, advanced technology, excellent service and strict effect control, we have produced strong market influence and brand competitiveness, and won high recognition from customers. Our company has the team and the innovation practical work spirit which upliftings, forwards furiously in the market economy flood tide! We strive for survival by integrity, stability by mutual benefit, development by cooperation, and progress by innovation. Warmly welcome customers from home and abroad to visit and negotiate business!
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.
Rely on 1st, devoting around the food stuff packaging and environmental safety for Zys Full Ceramic Ball Bearing Deep Groove Ball Bearing for Skate 609CE. Our management ideas include, customer-oriented, marketing-centered, full staff and whole process marketing. Welcome to contact us.
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