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Sgj High Speed Ceramic Insert Bearing Zro2/ Si3n4/ Sic Full/ Hybrid with SUS P Housing

Sgj High Speed Ceramic Insert Bearing Zro2/ Si3n4/ Sic Full/ Hybrid with SUS P Housing

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 ℃.

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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


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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 Sgj High Speed Ceramic Insert Bearing Zro2/ Si3n4/ Sic Full/ Hybrid with SUS P Housing manufacturer with the world's leading cutting-edge technology, and our Sgj High Speed Ceramic Insert Bearing Zro2/ Si3n4/ Sic Full/ Hybrid with SUS P Housing are deeply loved by consumers. Our company always leads high-quality development by scientific and technological innovation, and constantly carries out technical transformation and product upgrade, realizing numerical control, automation and intelligence. Our company will provide you with a complete set of direct supply services from the purchase of products to the application, so that you can buy and use at ease.

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