Hot Sell Spherical Roller Bearing 6212
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 constantly bring forth new zircar ceramics alumina boats, ceramic heating pad size, Alumina Ceramic Rod every year, not only from the product technology, design improvement and innovation, and product packaging design style, to meet the needs of consumers in all aspects. As a team with various people, we aspire to have different and unique qualities, but there is only one thing we share, and that is our passion for product quality. Quality is the key to determine the quality of products and also the most fundamental needs of customers.
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 focus on the management and risk control of each link in the industry chain to achieve full product traceability and ensure the quality of Hot Sell Spherical Roller Bearing 6212. We require our employees to have hard professional quality and strong comprehensive ability, and to be able to do extraordinary things in ordinary positions. While focusing on investment in science and technology, the company also focuses on people-oriented modern management concepts to manage talents reasonably.
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