The low temperature magnesium oxide powder adopts more than 93% 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 low temperature, it has low leakage of current, high security, is widely used for heaters of home appliance.
2 High performance of filling: good flow property, can be more denser, good thermal effects.
3 MED-1 without silicon oil, is suitable for heater which is fabricated by hight temperature treatment. MED-2 and MED-3 with silicon oil, good moisture resistance, heater can be used directly without sealing. Production process is more simple and low cost.
|Temperature of operation °C||≤550||≤500||≤400|
|Electrical Properties||Normal condition||Insulation resistance MΩ||≥1000|
|Breakdown voltage V||2500|
|Heating condition||Surface load w/cm2||6||6||5|
|Current Leakage mA||≤0.2||≤0.15||≤0.1|
|Insulation resistance MΩ||≥3||≥4||≥5|
|Breakdown voltage V||≥1800|
|Humid conditions||Insulation resistance MΩ||0||≥1000||≥1000|
|Breakdown voltage V||0||2500||2500|
|Silicone oil treatment||without||with||with|
|Physical Properties||distribution of grain||40-325||40-325||40-325|
|flow speed s/%||190±15||190±15||190±15|
|Density of vibration g/cm3||2.30-2.40||2.30-2.40||2.30-2.40|
|Heater for Electric kettle||Steel heater for electric iron||Steel heater||Copper plated steel heater for water heater|
|Heater for dishwasher||Heating plate for electric kettle||Double aluminium heater for coffee pot||Heating plate for rice cooker|