Low High Temperature Magnesia Powder MED
Our low High Temperature Magnesia Powder is made of fused magnesium that contains more than 93% MgO, firstly grinned, secondly proceeded with high temperature calcinations, and lastly added additives. The product has following features:
- Temperature resistance：excellent electrical performance, low leakage current under low temperature conditions, and has been widely applied to the low temperature heating elements, mostly civil use.
- Filling effect：Good flow properties, better density when filled into heat pipe, therefore good thermal effects.
- MED-1Product MED-1 does not have Silicone oil added; hence it is suitable for high temperature treated heating pipe.
Chemical & Physical Analysis
| Item | Silicon Coating | Type | Chemical Analysis(%) | Physical Property | ||||||
| Mgo | CaO | SiO2 | Fe2O3 | Ai2O3 | Sieve Analysis Mesh | Flow Rate s/% | Tap Density g/cm3 | |||
| Low Temperature Mgo | without silicon coating | MED-1 | ≥94 | ≤1.5 | ≤3.5 | ≤0.7 | ≤0.5 | 40-325 | 190±15 | 2.30-2.40 |
| with silicon coating | MED-2 | 40-325 | 190±15 | 2.30-2.40 | ||||||
| with silicon coating | MED-3 | 40-325 | 190±15 | 2.30-2.40 | ||||||
Electrical Property
| Type | Operate Temperature°C | Electrical Property | |||||||
| Normal Condition | Heating Condition | Humidity Condition | |||||||
| Insulation Resistence MΩ | Withstand Votage V | Wattage Current w/cm2 | Leakage Current mA | Insulation Resistence MΩ | Withstand Votage V | Insulation Resistence MΩ | Withstand Votage V | ||
| MED-1 | ≤550 | ≥1000 | 2500 | 6 | ≤0.2 | ≥3 | ≥1800 | 0 | 0 |
| MED-2 | ≤500 | ≥1000 | 2500 | 6 | ≤0.15 | ≥4 | ≥1800 | ≥1000 | 2500 |
| MED-3 | ≤400 | ≥1000 | 2500 | 5 | ≤0.1 | ≥5 | ≥1800 | ≥1000 | 2500 |