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High temperature MgO powder
The raw materials are treated by secondary high temperature calcination of rotary kiln, without adding or less silicone oil. They are mainly used for high temperature air burning electric heating components with high surface load, which can withstand 1050℃ heat treatment and need to be sealed in time.
mainly used for air conditioning heating pipes,oven pipeswashing machine pipes etcetera,it has good electrical properties,but does not have moisture proof properties,so it needs to be sealed in time when it gets wet
Chemical Analysis
| Specifications | Chemical analysls % | Magnetic ppm | Sulfur S ppm | Carbon C ppm | |||||
| MgO | Ca0 | Al₂O₃ | Fe₂O₃ | SiO₂ | L.O.I | ||||
| H9s | ≥97 | ≤1.0 | ≤0.9 | ≤0.4 | ≤1.5 | ≤0.04 | ≤30 | ≤10 | ≤10 |
| H9 | ≥96.5 | ≤1.5 | ≤0.9 | ≤0.5 | ≤2.0 | ≤0.04 | ≤40 | ≤10 | ≤10 |
| H8 | ≥95 | ≤2.0 | ≤0.9 | ≤0.6 | ≤2.5 | ≤0.08 | ≤50 | ≤10 | ≤10 |
physical property
Tap density T.D. (g/cm³) : 2.30-2.45
Flow rate F.T. (s/100g) : 38±6
Flow rate F.R. (s100g) : 165±20
| Mesh | 60 | 80 | 140 | 200 | 325 | -325 | |
| Particie size(μm) | 425 | 250 | 180 | 106 | 75 | 45 | -45 |
| Content (%) | ≤0.5 | 26±6 | 25±6 | 25±6 | 12±5 | 11±5 | 5±5 |
Electrcal Properties
| Speoficaions | Main electrical indicators refer to the data sheet | ||||||||
| Normal | Thermal leakage current (m A) | ||||||||
| Insulation MΩ | Pressure V/1mA | 5W/cm² | 6W/cm² | 7W/cm² | 8W/cm² | 9W/cm² | 10W/cm² | 11W/cm² | |
| H9s | ≥1000 | ≥2500 | 0.02 | 0.025 | 0.03 | 0.07 | 0.12 | 0.2 | 0.4 |
| H9 | ≥1000 | ≥2500 | 0.03 | 0.04 | 0.05 | 0.08 | 0.18 | 0.3 | 0.5 |
| H8 | ≥1000 | ≥2500 | 0.04 | 0.06 | 0.1 | 0.15 | 0.25 | 0.4 | - |
