Wuhan Global Metal Engineering Co., Ltd
Wuhan Global Metal Engineering Co., Ltd The pioneer manufacturer of heaters & sensors
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Non Ferrous Silicon Nitride Thermocouple Components Protection Sleeve One End Closed
Description:
1) Silicon nitride thermocouple protection tube is formed by CIP , then machined to accurate dimension, and put it into Reaction-Sintered furnace for sintering.
2) Silicon nitride thermocouple protection tube have the characteristics of high and equal density, good dimensional accuracy , etc. Silicon nitride is especially suitable for thermocouple protective cannula measuring temperature of molten aluminum for its anti-fusion.Our company can do any types as customers’ required.
Main Features:
1.Corrosion resistance
Outstanding corrosion resistance to molten aluminum alloys and flux contamination free.
2.Oxidation resistance
Oxidation rarely accurs at operating temperature(up to 800 C), which allows hi-cera to maintain stable performance for a long service life.
3.Thermal shock resistance
Superior thermal shock resistance allows hi-cera protection tubes to be inserted in molten aluminum directly with simple preheating.
4.Mechanical strength
The highest strength among ceramics allows a thin wall thickness.
5.Wear resistance
Excellent wear resistance gives degassing rotor shafts a long service life at a high speed revolution.
6.Acid ressitance
Exceptional acid resistance against acids such as hydrochloric acid and sulfuric acid permits removal of sticking matter on the surface with such acids.
Specification:
| Property of Silicon nitride products | ||
| Material | Unit | Si3N4 |
| Volume density | g/cm 3 | 2.77 |
| Young's modulus | Gpa | 240 |
| Flexural strength | MPa | 186.4 |
| Porosity | % | 12 |
| Thermal expansion coefficient | a×10-6 | 2.51 |
| Fracture toughness | (Mpa*m -1 ) | 2.8 |
| Thermal Conductivity | W/mk | 15 |
Application
Used to protect the temperature-measuring components,
make the components isolate from the outside substance,
reduce and prevent the corrosion, oxidation and mechanical damage to the components during measuring.
Shipping:
1, by air
2, by express
3, by sea