The high temperature magnesium oxide powder adopts more than 98% fusing MgO powder as raw material. After crushing and grinding, adding proper additive, then fabricate it through high-temperature calcination.
1.Hight temperature resistance: excellent electrical performance, under high temperature, it has low leakage of current, high security, is widely used for heaters which used for dry heating.
2.High performance of filling: good flow property, can be more denser, good thermal effects.
3.Without silicon oil, greatly extend the life of heater under high temperature environment.
|Temperature of operation °C||≤1050||≤800||≤800|
|Electrical Properties||Normal condition||Insulation resistance MΩ||≥1000|
|Breakdown voltage V||2500|
|Heating condition||Surface load w/cm2||10||9||9|
|Current Leakage mA||≤0.2|
|Insulation resistance MΩ||≥3|
|Breakdown voltage V||≥1800|
|Humid conditions||Insulation resistance MΩ||0|
|Breakdown voltage V||0|
|Silicone oil treatment||without|
|Physical Properties||distribution of grain||40-325||80-325||40-325|
|Flow speed s/%||150±15||160-180||150±15|
|Density of vibration g/cm3||2.28-2.50||2.24-2.34||2.28-2.50|
|Heater for bread toaster||Industrial cartridge heater||Heater for industrial furnace||Heater for electric oven|