
High Speed Si3n4 Fidget Spinner 608 Ceramic Bearing for Kids
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 ceramic beads for heat treatment, industrial ceramic pipes, Ceramic Heating Pads is exquisite, concise and concise in workmanship, and all of its parts are carefully selected to ensure high-quality standards. It adheres for the tenet 'Honest, industrious, enterprising, innovative' to develop new products and solutions continuously. We have established a good corporate image in the capital market by giving our shareholders a good return on our excellent performance through sound operation and standardized operation. Innovative technical personnel, perfect management, high-quality raw materials, exquisite technology cast our brand.
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're hunting forward to your check out for joint development for High Speed Si3n4 Fidget Spinner 608 Ceramic Bearing for Kids. We have won high praise and recognition from customers at home and abroad with high quality, flat price, heavy promise and trustworthiness. Over the years, our efforts have made our company have a competent science and technology team and a perfect quality system, which can meet the needs of customers and strive for common progress!
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