Zro2 Si3n4 Full or Hybrid Ceramic Bearing 608 Hand Spinner
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 ℃.
On the basis of insisting on independent research and development, we carry out open cooperation. The company is committed to the field of ceramic fiber gasket tape, Molybdenum Disilicide Heating Elements, fiberfrax ceramic fiber paper and provides professional products and services to customers at home and abroad. The company provides employees with career development space to help them create performance and self-achievement. We have introduced a series of imported professional manufacturing equipment, closely combined with the needs of users, and followed the 'professional, efficient, and thoughtful' service concept, so as to continuously improve and upgrade our products. We always pay high attention to putting the advanced managerial knowledge and manufacturing technique into practice.
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.
To broaden the future, Zro2 Si3n4 Full or Hybrid Ceramic Bearing 608 Hand Spinner will never forget our original aspiration, and we will strive unremittingly, and move towards new stage! Our vision is to build a fair and open platform to attract a group of employees who are diligent and pragmatic, pursue success, discipline and have a sense of responsibility. Our company always aims at quality, reputation and service, and provides timely products and services required by customers.
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