Plastic Pulley Wheels Small Plastic Pulley with 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 ℃.
In order to meet the increasingly complex and changeable processing needs of users, our company pays attention to continuously improving and improving the performance and quality of alumina ceramic furnace tube, dcs radiant tube tray with 18 ceramic tubes, non porous alumina ceramic tubes. We are committed to making our company grow in the interests of all stakeholders, including shareholders, investors, employees, customers, and suppliers. We have greatly strengthened the cohesion of the company and the sense of belonging of the employees.
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 have the competitive advantage of differentiation in line with customers' interests, further consolidating our core competitiveness in the Plastic Pulley Wheels Small Plastic Pulley with Bearing industry. We have established long-term and stable cooperative relationships with many regional wholesalers and hundreds of end customers. Please feel cost-free to speak to us for small business and we believe we'll share the best trading experience with all our merchants.
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