
Ceramic Stalk for Aluminum Low Pressure Casting
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.
Innovation can improve product value, so that demanding to connect our core capabilities with the value that customers cherish, thus to provide customers with unique Furnace Heating Element Sic, MoSi2 Heating Element, Si3N4 Tube to maximize satisfaction. We strive to create a good situation in which everyone does his or her best, and let the creativity and intelligence of talents in all fields burst out in competition. If an enterprise wants to survive and develop in the cruel market competition, it must have a group of excellent enterprise management talents. While providing perfect products, enterprises also provide consumers with comprehensive after-sales service, which has become the new focus of modern enterprise market competition. Our products are sold throughout the country and exported to many regions abroad.
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.
In order to best meet client's needs, all of our operations are strictly performed in line with our motto 'High Quality, Competitive Price, Fast Service' for Ceramic Stalk for Aluminum Low Pressure Casting. We comply with humanized management and produce humanized products. We adhere to the concept of safety development and comprehensively deepen safety risk management.
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