Product Details

Specifications

1.Molybdenum Disilicide Heater MoSi2 heating elements
2.type:U,W,UL,WL,Rod
3Dia(mm):3/6,4/9,6/12,9/18,12/24
4.1700,1800,19

MoSi2 heating elements:
1, Professional manufacturer
2,long working life and heat-resisting
3,Lower price

Order sample:

d=6mm, c=12mm, Le=200mm, Lu=180mm, a=30mm

Please specify as: dia6/12x200x180x30mm (dia d/cxLexLuxa mm)

d = the diameter of hot zone

c = the diameter of cold zone

Le = the length of hot zone

Lu = the length of cold zone

M1700 (heat furnace temperature 1650^.C )

1800 (heat furnace temperature 1700^.C)

Standard sizes:

M1700 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24

M1800 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24

MoSi2 heating elements physics and chemistry characters:

1. Physics Characters

Volume Density	Bending Strength	Vickers Hardness	Porosity	Water absorption	Heating Elongation Rate
5.5 g/cm3	15-25 kg/cm3	(HV)570kg/mm2	7.4%	1.2%	4%

2. Chemistry Character
MoSi2 heating element is used in the high temperature under oxidizing atmosphere.

It will form the SiO2 film which can keep the element from being melted.

During the oxidizing process, the SiO2 protecting film is formed again when

the element continues to be used. The MoSi2 heating element must not be

used in the temperature between 400C and 700C for a long time,

otherwise the element will be cremated under the strong oxidizing function in the low temperature.

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Notice to Furnace Operation:

To avoid high current surges which may cause damage to MoSi2 heating elements, the recommend starting procedure as following:

Small Furnace (Power 100KW)		Big Furnace (Power 100KW-500KW)
Furnace Temperature ^.C	Voltage	Furnace Temperature ^.C	Voltage
20-150	1/3	20-300	1/3
150-500	2/3	300-700	2/3
500-Working Temperature	Full	700-working Temperature	Full
Note: Shifting gear must be done quickly, otherwise high current surges may cause damage.