FH-8A
Features and uses:
This type of powder belongs to heavy silicon modified medium and high temperature moisture-proof magnesium oxide powder, which can be used to make air-fired electric heating elements with medium to medium and high power loads, and can be easily sealed.
Applies to:
Various medium power and medium to high power load medium heaters such as water heater tubes, oven tubes, mosquito coil tubes, etc.
Type: heavy silicon modified moisture-proof electrical grade magnesium oxide high temperature powder
Product model: FH-8A
Features and uses:
This type of powder belongs to heavy silicon modified medium-high temperature moisture-proof magnesium oxide powder, which can be used to make air-fired electric heating elements with medium and medium-high power loads, and can be easily sealed.
Applicable to: water heater tubes, oven tubes, mosquito coil tubes and other medium power and medium to high power load medium heaters.
Chemical index
| Main chemical composition % | |||||
| MgO | SiO2 | CaO | Fe2O3 | Al2O3 | LOI |
| ≥95 | ≤2.0 | ≤1.5 | ≤0.6 | ≤0.9 | ≤0.15 |
Physical index
| Tap density T.D. （g/cm3） | Flow rate (F.R s/100g) | ||||||
| 2.25--2.38 | 175±20 | ||||||
| Mesh | +40 | +60 | +80 | +150 | +200 | +325 | -325 |
| Particle size (㎛) | +425 | +250 | +180 | +110 | +75 | +45 | -45 |
| Content(%) | ≤0.5 | 25±8 | 25±8 | 15±5 | 10±5 | 8±3 | 5±3 |
Electrical performance
Test Conditions:
Pipe…………SUS 304
Shrink tube…………φ8.0mm → 6.6mm
Wire…………Ni80Cr20, φ0.3mm
Coil…………φ2.3mm
Heating length…………43.0cm-45.0cm
Power-on time...15 minutes
Packing: 25KG carton or woven bag, or according to customer requirements.
Security and storage:
Electrical grade magnesium oxide powder is non-toxic and has a small amount of dust. It is recommended to wear masks and gloves during use. The product should be stored in a dry place, and it is recommended to use it within 12 months after leaving the factory.
1) Strong moisture resistance:
This type of product has a moisture-proof capacity of 1x106MΩ. After being exposed to moisture test (humidity 92% and temperature 50°C) for a long time for more than 72 hours without sealing, the insulation capacity has not decreased; strong moisture-proof ability can greatly improve the production cycle. To reduce the requirements of the sealing material, simply seal with ordinary silica gel.
2) Strong insulation capacity:
Even if it is used in electric heating components with low working temperature and very high insulation performance requirements; products of different specifications and grades can be selected according to the technical indicators of electric heating components.
3) This product has uniform color, beautiful appearance and low dust, which is beneficial to improve the environment of adding powder.
Note: The above shows the typical performance value of this specification electrical grade magnesium oxide powder, for the user's reference when choosing.
