Silicon Nitride Heater Protection Tube

Silicon Nitride Heater Protection Tube

Silicon nitride heater protection tubes are ceramic tubes manufactured from Si3N4 material designed to shield heating elements or heaters in high-temperature applications

Description

Silicon nitride heater protection tubes are ceramic tubes manufactured from Si3N4 material designed to shield heating elements or heaters in high-temperature applications, where corrosive gases or liquid metals might be present. They offer excellent corrosion- and chemical-resistance, making it the ideal choice in harsh environments where corrosion-sensitive heating elements or heaters may be exposed to such hazards.

* Thanks to its high temperature strength and thermal shock resistance, Silicon Nitride Ceramic can withstand the high-heat load from high temperature burners as well as corrosion from molten aluminum corrosion for extended periods; service life exceeds one year;

* Silicon Nitride Ceramics have proven themselves remarkably nonreactive towards aluminum liquid, thus helping maintain its purity under high temperature conditions.

*Compared with traditional upper radiation heating methods, energy savings of 30-50% can be realized; overheated aluminum oxide oxidation can be significantly reduced and overheating reduced by 90%. Precautions for Use.

* For maximum safety, Silicon Nitride Heater Protection Tube must be dried and preheated above 400 before use. When first heating the electric heater for the first time, its temperature should gradually increase following its heating curve.

*To extend the service life of any product, it is advised to clean and maintain its surface frequently (at least every 7-10 days).

ItemUnitTypical values
Physical Properties
Densityg/cm3>3.2
Mechanical Properties
Rockwell Hardness HRA90
Vickers Hardness (Hv50)HV0.5>1550
Modulus of ElasticityGpa290
Flexural StrengthMpa>600
Compressive StrengthMpa2500
Fracture toughnessMpam1/2>6.0
Thermal    Properties
Maximum use temperature1200
Thermal ConductivityW/(m.k)15-20
Thermal Expansion Coefficient10-6/℃>3.1
Thermal Shock ResistanceTC500
Specific Heat CapacityKJ/kg.K700
Electrical Properties
Dielectric StrengthKV/mm1
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