The middle temperature Magnesium Oxide Powder adopts more than 97% 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 middle temperature, it has low leakage of current, high security, is widely used for Heaters of middle temperature. 2.High performance of filling: good flow property, can be more denser, good thermal effects. 3.TEZ-1 without Silicon Oil, is suitable for heater which is fabricated by hight temperature treatment. TEZ-2 and TEZ-3 with silicon oil, good moisture resistance, heater can be used directly without sealing. Production process is more simple and low cost.
Electrical properties comparison of Magnesium oxide-middle temperature
Model
TEZ-1
TEZ-2
TEZ-3
Temperature of operation °C
≤700
≤700
≤600
Electrical Properties
Normal condition
Insulation resistance MΩ
≥1000
Breakdown voltage V
2500
Heating condition
Surface load w/cm2
8
7
7
Current Leakage mA
≤0.2
≤0.2
≤0.15
Insulation resistance MΩ
≥3
≥3
≥4
Breakdown voltage V
≥1800
Humid conditions
Insulation resistance MΩ
0
≥1000
≥1000
Breakdown voltage V
0
2500
2500
Chemical and physical properties comparison of Magnesium oxide-middle temperature
Model
TEZ-1
TEZ-2
TEZ-3
Silicone oil treatment
without
with
with
Chemical analysis(%)
MgO
≥95
CaO
≤1.5
SiO2
≤2.5
Fe2O3
≤0.6
Al2O3
≤0.5
Physical Properties
distribution of grain
40-325
40-325
40-325
flow speed s/%
180±15
180±15
180±15
Density of vibration g/cm3
2.30-2.40
2.30-2.40
2.30-2.40
Application of Magnesium oxide-middle temperature
Heater for industrial boiler
Heater for Electric kettle
Aluminium fin heater
Oil heater
Heater for soybean milk maker
Model
Remarks
TEZ-1
TEZ-1 is a medium temperature powder.
This kind of powder is without silicone oil or treated with pretty light silicone oil.
Electrical Grade Magnesium Oxide is non- toxic, but with some dust. Anti-dust respirator and gloves are proposed to use during operation.
Mainly used in liquid heating elements with wattage loading less than 8W/cm 2 .
The elements can stand 1050℃±50℃ annealing for 15-30 minutes or high frequency machine annealing but requires immediate sealing.
Electrical Grade Magnesium Oxide should be stored in dry places, and suggested to be used out within 6 months after delivery.
TEZ-2
TEZ-2 is a medium temperature powder.
This kind of powder is treated with heavy silicone oil.
Electrical Grade Magnesium Oxide is non-toxic, but with some dust. Anti-dust respirator and gloves are proposed to use during operation.
Mainly used in the elements of Copper Tube with wattage loading less than 8W/cm 2 .
Elements stuffed with this material are proposed to be annealed at 420℃ for 15minutes, and don’t require sealing.
Electrical Grade Magnesium Oxide should stored in dry places， and are suggested to be used out within 6 months after delivery.
TEZ-TM1
TEZ-TM1 a medium-high temperature powder.
This kind of powder is treated with heavy silicone oil.
Electrical Grade Magnesium Oxide is non-toxic, but with some dust. Anti-dust respirator and gloves are proposed to use during operation.
Mainly used in the elements of copper tube with wattage loading less than 8W/cm 2 .
Elements stuffed with this material are proposed to be annealed at 420℃ for 15minutes, and don’t require sealing.
Electrical Grade Magnesium Oxide should stored in dry places， and are suggested to be used out within 6 months after delivery.
TEZ-TM2
TEZ-TM2 is medium temperature powder.
This kind of powder is treated with heavy silicone oil.
Electrical Grade Magnesium Oxide is non-toxic, but with some dust.
Mainly used in oven heating elements.
Elements stuffed with this material are proposed to be annealed at 250℃，and don’t require sealing.
Electrical Grade Magnesium Oxide should stored in dry places， and are suggested to be used out within 6 months after delivery.
MEZ-TMJ
MEZ-TMJ is a medium-high temperature powder.
This kind of powder is treated with heavy silicone oil.
Electrical Grade Magnesium Oxide is non-toxic, but with some dust. Anti-dust respirator and gloves are proposed to use during operation.
Mainly used of oven heating elements.
Elements stuffed with this material are proposed to be annealed at 250℃，and don’t require sealing.
Electriacl Grade Magnesium Oxide should be stored in dry places, and are suggested to be used out within 6 months after delivery.
Photos
Standard
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