Skateboard Hybrid Ceramic Ball Bearing 608
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 company always adhere to the spirit of seeking truth, ensure heating element for hot water heater, ceramic pipe mold, Furnace Heating Element Sic quality, reasonable price and integrity as the fundamental business purpose, facing the market. Therefore, employees must have a sense of loyalty to the company, a sense of mission, a strong sense of responsibility for their work, the courage to assume responsibility and perform their duties. We strive to achieve our development goals and make every effort to transform to high-quality development.
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 firmly take the new road of green development and march towards the goal of being a global first-class supplier of high-quality Skateboard Hybrid Ceramic Ball Bearing 608! We participate in high competition through the innovation and accumulation of technology, and now we are more pursuing the perfection of organizational system, excellence and perfection of corporate culture. Business philosophy is the standard for evaluating the meaning of our existence and the standard for selecting the value of our behavior.
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