Silcon nitirde Si3N4 protect tubes/pipe by gas pressure sintering

Si3N4 Tube

Shanghai Kessen Ceramics is one of the world's largest industrial ceramics producers for silicon nitride protective tube.Silicon nitride ceramics possess excellent properties of high thermal stability,antioxidant capacity and good dimensional precision of products.This is essential to detect even tiny temperature differences and permit an effective automatic control loop.Silicon nitride is especially suitable for thermocouple protection tube measuring temperature of molten aluminum for its anti-fusion.In order to guarantee tube's quality,we used the excellent raw material and adopt strict total quality management and advanced techniques.

Applications

Silicon nitride protective tube is widely usedfor non ferrous metal casting.Especially for measuring the temperature of liquid aluminum.

1)protection tube

2)heating tube

3)vent tube 

4) riser tube

5) Radiation tube

Properties

Features

1.Don’t react with molten Al,the surface is not bonded with Al,improve the quality of Al products;

2.Good resistance to oxidation,can work for a long time below 1000°C in atmosphere,no oxidation;

3.100%compactness,molten Al can not pollute it,but the Si3N4 tubes by reaction sintering have a very short life,there are many pores,will be polluted from molten Al after long time working;

4.Good thermal shock resistance

5.the working life is more than 6 months in Al industry,and more than one year after testing.

Top 7 Reasons to Use Kessen Si3N4 Tube

1.Good thermal stability

2.Erosion resistance

3.wash resistance

4.quick thermal conductivity

5.long life

6.High temperature resistant

7.High strength