Magnesium Oxide Insulator Description
Magnesium Oxide Insulator is used to electrically isolate and mechanically support the thermoelements of a thermocouple. Its melting point (3098K) is the highest in the oxide. Magnesium oxide is superior in corrosion resistance in molten metal. Magnesium oxide can be used for a lot of metals compared with aluminum oxide.
Magnesium Oxide Insulator Specifications
Chemical composition (%)
|
MgO
|
99.8
|
99.1
|
CaO
|
0.05
|
0.39
|
SiO2
|
0.02
|
0.29
|
Al2O3
|
0.04
|
0.13
|
Fe2O3
|
0.02
|
0.06
|
B2O3
|
<0.001
|
0.01
|
Physical properties
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Bulk density (g/cm3)
|
2.3~2.5
|
Bending strength (MPa)
|
20~40
|
Magnesium Oxide Insulator Application
Magnesium Oxide Insulator is used for the cartridge heater, the sheathed heater, and the glow plug. It is also used as an insulated core that wraps an exothermic wire and as a guide insulator that guides a metal wire.
Magnesium Oxide Insulator Packaging
Our Magnesium Oxide insulators are carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Magnesium Oxide Insulator FAQs
Q1: What are the key properties of MgO insulators?
- Thermal Conductivity: High, suitable for heat dissipation
- Electrical Resistivity: Excellent insulation at high temperatures
- Melting Point: ~2800°C
- Chemical Stability: Resistant to chemical reactions and moisture absorption.
Q2: What industries commonly use MgO insulators?
- Power generation
- Heating elements
- Aerospace and defense
- Electronics and semiconductors.
Q3: Why is MgO preferred for high-temperature applications?
MgO's high melting point, thermal stability, and resistance to thermal shock make it ideal for extreme heat environments.