Zys 4mm Diameter Ceramic Bearing Ball Silicon Nitride Ceramic Ball with Grade 5
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 have a complete monitoring system to ensure that every small ceramic tubes, electric water heater element replacement, alumina ceramic tubes thick wall manufactured is excellent in terms of performance, appearance and quality. In the future, our company will do our best to make the performance grow continuously to meet the needs of sustainable development of the enterprise and growth of the staff. We always adhere to the core concept of 'integrity, pragmatism, and excellence', always adhere to the policy of 'quality is the life of the company', and constantly improve innovation capabilities, and strive to create products that customers need.
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.
Our Zys 4mm Diameter Ceramic Bearing Ball Silicon Nitride Ceramic Ball with Grade 5 enjoys a high reputation because it is constantly improved with our continuous technological innovation. In the past few years, we have further strengthened cooperation and exchanges with companies in the industry, which has created conditions for the growth of the company's strength. We start from innovation, aim to achieve the best user experience and maximize value creation to achieve industry development.
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