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.

Electro-fused magnesium oxide 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 Messi’s measurement standard.
*The properties are the typical values and not the guaranteed values.

Electrical Grade Magnesium Oxide Powder

Electrical-grade magnesium oxide powder is made from the region’s top-quality 97% or 98% fused magnesia, and adopts relatively advanced domestic modification technology to make the magnesium oxide powder an electrical insulation electrical-grade magnesium oxide that is moisture-proof and has good electrical insulation properties. The powder is mainly used for air conditioning tube powder, sauna tube powder, oil tin tube powder, electric kettle tube powder, water dispenser tube powder, mosquito coil tube powder, electric iron tube powder, oven tube powder, soy milk machine tube powder, rice cooker tube powder, etc. Industry application.

Electrical grade magnesium oxide has good insulation and fast heat transfer properties, and is an ideal insulating filling material for electric heating components. According to the operating temperature of electric heating components, the products are divided into three categories: high temperature, medium temperature and low temperature. Electrical grade magnesium oxide products are manufactured using fused magnesium oxide, which is made by electrofusion of high-quality magnesite or sintered magnesium oxide, and requires the electrical properties of fused magnesium oxide (insulation resistance, withstand voltage and leakage current), and the chemical properties meet certain requirements. Only such fused magnesium oxide can be used as an ideal filler for electric heating components and can be called special electrical grade magnesium oxide.