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magnesium oxide
DENMAG®
Magnesium Oxide for Electrical Heater
Electro-fused magnesium oxide used for insulating filler of heating elements.
Features
Electro-fused magnesium oxide is used for insulating filler of tubular heating elements.
To produce a tubular heating element, the coiled electric wire is inserted into the metal tube and the electro-fused magnesium oxide powder is filled into the inside gap.
Tubular heating elements are widely used for such applications as household appliances (electrical rice cookers, irons, hotplates, etc) and industrial equipment (molding machines, hot sealers, etc).
Electro-fused magnesium oxide powder plays a role in insulating the electric current running through the wire and effectively conducting only the thermal energy to the tube.
Our subsidiary, Tateho Chemical Dalian Co.,Ltd produces such electro-fused magnesium oxide grades, using electro-fused raw material made in China.
Powder Properties (Typical)
| Grades | For High Temp. | For High Temp. Light silicone treatment |
For Low/Middle Temp. Silicone treatment |
||||
|---|---|---|---|---|---|---|---|
| DENMAG®️U-10 | DENMAG®️U-18 | DENMAG®️L-08 | |||||
| Tap density (×103kg/m3) | 2.340 | 2.344 | 2.315 | ||||
| Flow rate (s/0.1kg) | 181.8 | 173.0 | 205.6 | ||||
| Sieve analysis（%） | +425µm (36mesh) | 0 | 0 | 0 | |||
| +355µm (42mesh) | 0.2 | 0.2 | 0.1 | ||||
| +250µm (60mesh) | 24.4 | 24.7 | 28.9 | ||||
| +180µm (83mesh) | 26.7 | 26.8 | 27.4 | ||||
| +106µm (140mesh) | 28.6 | 28.5 | 29.2 | ||||
| +75µm (200mesh) | 12.1 | 12.1 | 10.0 | ||||
| +45µm (330mesh) | 6.9 | 6.8 | 4.3 | ||||
| -45µm (330mesh) | 1.1 | 0.9 | 0.2 | ||||
• Tap density: According to Tateho’s measurement standard.
• Flow rate: According to Tateho’s measurement standard.
• Sieve analysis: According to Tateho’s measurement standard.
*The properties are the typical values and not the guaranteed values.
Chemical Composition (Typical)
| Grades | For High Temp. | For High Temp. Light silicone treatment |
For Low/Middle Temp. Silicone treatment |
||||
|---|---|---|---|---|---|---|---|
| DENMAG®️U-10 | DENMAG®️U-18 | DENMAG®️L-08 | |||||
| MgO (%) | 97.5 | 97.5 | 97.2 | ||||
| CaO (%) | 0.75 | 0.77 | 0.76 | ||||
| SiO2(%) | 0.98 | 0.98 | 1.33 | ||||
| Al2O3(%) | 0.34 | 0.33 | 0.15 | ||||
| Fe2O3(%) | 0.36 | 0.36 | 0.44 |
• Chemical properties: X-ray fluorescence method
*The properties are the typical values and not the guaranteed values.
Electrical Properties (Typical)
| Grades | For High Temp. | For High Temp. Light silicone treatment |
|||||
|---|---|---|---|---|---|---|---|
| DENMAG®️U-10 | DENMAG®️U-18 | ||||||
| Leakage current (mA) | 10×104W/m2 | 0.73 | 0.68 | ||||
| 8×104W/m2 | 0.18 | 0.17 | |||||
| 6×104W/m2 | 0.07 | 0.07 | |||||
• According to Tateho’s measurement standard.
*The properties are the typical values and not the guaranteed values.
Specification
Purity
98% or more but less than 99.9
Purpose
100 μm or more but less than 1 mm
Shape
powder
Price
200 yen or more but less than 1,000 yen
Related Products
PRODUCT LIST
Magnesium Oxide
- TATECERA® EMG（Magnesium Oxide Insulator）
- Made by TOTC（Dense Magnesium Oxide Ceramics）
- TATECERA® CMGH（High Purity Magnesium Oxide Ceramics）
- TATECERA® CMG（Magnesium Oxide Ceramics（Crucible・Sagger））
- TATECERA® SMG（Magnesium Oxide Ceramics（Setter））
- DENMAG®（Magnesium Oxide for Electrical Heater）
- DENMAG® SSP（Electro-Fused Magnesium Oxide）
- PUREMAG® FNM-G（High Purity Magnesium Oxide）
- DISPERMAG®（Highly Dispersible Magnesium Oxide）
- TATEHOMAG®（Magnesium Oxide for Electromagnetic Steel Sheets）
- DENMAG®（Electro-Fused Magnesium Oxide）
- MIRACRYSTAR®（Single Crystal Magnesium Oxide Substrates）
- TATEHOMAG® #700（Light Burned Magnesium Oxide）
- TATEHOMAG®（Light Burned Magnesium Oxide）
Magnesium Hydroxide
Magnesium Aluminate
Calcium Oxide
Zirconium Dioxide
Aluminum Oxide
Calcium Sulfite
Silicon Carbide
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