Silicon Nitride Si3n4-Silicon Carbide Sic-Zirconia Zro2-Alumina Al2O3 Ceramic Balls for Solid Lubricating Ceramic Ball Bearing
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 has developed a series of high quality and high strength porous ceramic pipe, ceramic flanged bushings, ceramic fiber tape data sheet with excellent stability and reliability, which is the best of their kind. We strive to create a talent team with moderate total quantity, reasonable structure and excellent quality. Our factory always adheres to the tenet of 'survive by quality and development by science and technology', and is trusted by customers with considerate service. It is the key to the success of an enterprise to make a suitable marketing strategy.
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.
The main materials of our Silicon Nitride Si3n4-Silicon Carbide Sic-Zirconia Zro2-Alumina Al2O3 Ceramic Balls for Solid Lubricating Ceramic Ball Bearing are all from well-known brands, focusing on product quality, paying attention to efficiency, and providing users with the most competitive products. Our company has advanced manufacturing production lines and complete testing equipment. After years of trials and hardships, the product manufacturing process is more scientific and reasonable, the testing methods are more complete, and the product quality is reliable and stable. Our values include integrity, innovation, discipline, positivity, customer achievement, employee achievement, enhancing shareholder value, and serving national needs.
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