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- Company Name : Shanghai Bochuan Silicon Carbon Rod Manufacturing Co., Ltd.
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Si3N4 bonded SiC thermocouple protection tube
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Si3N4 bonded SiC thermocouple protection tube
Item | Material | Component % | Temperature in common use °C | Characteristic |
Thermocouple protection tube | Recrystallized SiC | SiC 98 | 1400 | Good gas tightness,heat-resisting,strong concussion,excellent wear-resistantance.in the atmosphere of oxidation and reducing property,can be used to 1600°C. |
Si3N4 bonded SiC |
| 1500 | Fused aluminium corrosion resistance because of Si3N4 |
Si3N4 bonded SiC as a new type refractory material,is used widely.The applying temperature is 1400 °C.It has better thermal stability,thermal shock,which is better than plain refractory material and recrystallization SiC.It also has antioxidation,high corrosion resistant,wear-resistantance,high bending strength.It can resist corrosion and scouring,be no polluted in molten metal such as AL,Pb,Zn,Cu ect.
The diameter of Si3N4 bonded SiC thermocouple protection tube is Φ20-50mm,length is 1600 mm.It can be usded in high temperature kiln furnace and all kinds of atmosphere.It also can be used in all kinds of melted liquid.
The physical and chemical performance of Si3N4 bonded SiC :
Item | Index |
Compressive strength Mpa | > 120 |
Bending strength Mpa | > 40 |
Vol. density g/cm³ | 2.4 |
Porosity % | 20 |
Thermal conductivity (1200 °C) W/M °C | 15 |
Thermal shock 1000°C-20°C | > 20 times |
Resistivity | 10000 |
Moh's hardness | > 9 |
Specification of Si3N4 bonded SiC thermocouple protection tube:
Diameter mm | Inner dia.mm | Length mm |
Φ20 | 12 | 500-1000 |
Φ25 | 14 | 500-1200 |
Φ30 | 18 | 500-1300 |
Φ40 | 25 | 500-1300 |
Φ45 | 29 | 500-1300 |
Φ50 | 32 | 500-1300 |
Φ60 | 42 | 500-1400 |
Φ70 | 52 | 500-1500 |
Remarks:. | ||
1. It can be made one sealing end,or both open ends | ||
2.The diameter of all kinds of crucible can made Φ70,height 600 mm | ||