Ceramic Ball / Stainless Steel Ball Hand Toy Ball Bearing Sr188
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 emphasize advancement and introduce new products and solutions into the market each year for bush ceramic hob, electric hot water heater element replacement, ceramic fiber insulation modules. We carry out market segmentation, define our brand positioning, build our brand culture and accumulate brand connotation. Our company has a complete after-sales service network, so that customers can enjoy the whole process of comfortable service. If it's easy, you may locate out our address in our web-site and come to our business for far more information of our merchandise by yourself. We believe in being honest and responsible, and discard any hypocrisy, breach of trust and irresponsible behavior.
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 are committed to continuously exceeding customers' expectations and providing them with Ceramic Ball / Stainless Steel Ball Hand Toy Ball Bearing Sr188 that meet rapidly changing manufacturing requirements and their business objectives. In the context of economic globalization, we strive to promote the internationalization of our brand. We insist on strict management, standardized operations, high-quality products, and excellent services to make our products better.
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