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Powder of electro-fused magnesium oxide for electrical heater, DENMAG® produced by Tateho Chemical

DENMAG®️

Electro-Fused Magnesium Oxide for Electrical Heater

Electro-fused magnesium oxide used for insulating filler of heating elements.

summary

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: ASTM D-3347
• Flow rate: ASTM D-3347
• Sieve analysis: ASTM D-2772
*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

• ASTM D-2900
*The properties are the typical values and not the guaranteed values.

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