Hot pressed sintering silicon nitride,

can be used in Water or Oil heating.

Nominal voltage:110V-250V,50/60Hz

Rated power:1500W-2700W

Insulation dielectric strength:2500V,50Hz, No breakdown in 60seconds in room temperature.

Leakage Current: In normal operation condition≤0.025mA,

After the break in the water≤10 mA

Acid corrosion resistance:

6 hours boiling in 5% sulfuric acid solution, corrosion rate<10g/m2.h

Alkali corrosion resistance:

6 hours boiling in 30% sodium hydroxide solution ,corrosion rate<0.6g/m2.h

Thermal properties of hot pressed sintering silicon nitride materials:

Flexural strength at room temperature:≥900Mpa.m1/2

Fracture toughness at room temperature:6.0~8.0Mpa

Volume density:3.20~3.40g/cm3

Volume resistivity at room temperature:1014Ω.cm

Relative dielectric constant at room temperature:6~7

Thermal conductivity:23~25W/(m-K)

Coefficient of thermal expanding:3.1×10-6/°C

Hardness:HRA 92~94