Customized Hot Selling Super Wearing Resistance Si3n4 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 ℃.
We can find our internal control defects in time, improve the internal control system and improve the quality of our Ceramic Pad Heater, transparent alumina ceramic tube, ceramic guide bushing. We specialize and refine production to forge excellent quality, and provide first-class service with the purpose of customer satisfaction. Our company has a good reputation and abundant capital reserve. We will repay our customers with better, updated products and high-quality services. Quality, service and innovation are important factors for us to win in the fierce competition.
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 continue to take our product line to the next level by developing new products and improving existing product designs to provide our customers with the best Customized Hot Selling Super Wearing Resistance Si3n4 Ceramic Ball Bearing on the market. We strictly control the quality of our products. Our company will carry out strict quality inspection before the products are delivered to customers. Our company concentrates on staff growth and learning, and makes every effort to build a "learning enterprise organization".
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