
China Factory Industrial Technical Si3n Ceramic Insert
Silicon nitride ceramic protection tube is used in conjunction with the thermocouple to protect the thermocouple, so that the thermocouple can work normally in a special environment, and it can resist high pressure and high flow rate.
Sticking for the perception of 'Creating products of top quality and producing friends with people today from all around the world', we constantly place the desire of shoppers to start with for Silicon Carbide Sic Heating Element, Ceramic Fiber Board, Si3N4 Tube. We will embody our solemn commitment to every customer with standardized and professional management, high-quality and efficient service. We hope to strive to achieve development goals through innovation-driven, structural optimization, industrial upgrading, product and service quality improvement. We continue to explore the market, but also with full enthusiasm to increase the update of production equipment and technology and constantly improve the performance indicators of various products, and strive to make you feel at ease with cheap products and complete after-sales service. We encourage every employee to compete on the basis of sincere cooperation and commitment of responsibility.
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 adhere to the market-oriented, technology-centric, service-oriented policy, and the concept of achieving customers and creating value models to meet customer needs with various China Factory Industrial Technical Si3n Ceramic Insert. We advocate the execution ability of "100% implementation of principles and fundamental issues, and creative implementation of practical and detailed issues". We warmly welcome you to visit our company and wish we will have chance to establish good and long time business relationship with all the customers from all over the world!
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