Two-shank Bent Mosi2 Heater

Two-shank bent mosi2 heater

PHYSICAL PROPERTIES
volume density : 5.5~5.6kg/cm3
bend strength : 15~25kg/cm2
vickers-hadness : (HV) 570KG/MM2
POROSITY RATE : 7.4%
WATER ABSORTION : 1.2%
HOT EXTENSIBLITY : 45

CHEMICAL PROPERTIES
Oxygen -resistance under high temperature : in oxidizing atmosphere , a layer of compact quarts (sio2) protective film is formed on the surface of element owing to the high -temperature combustion , which prevent MOSI2 from continuously oxidizing .When he element temperature is higher than 1700 degree . the sio2 protective film will be fused because its fusing point is 1710 degree and the sio2 is fused nto molten dropa owing to the action of its surface extension ,whic cause losing its protective ability . In the oxidizing atmosphere, when the element is continuously used , the protective film forms again .
It should be point out that element cnnot be used for rather longtime in 400-700 degree . otherwise it will be powdered owing to the strong oxidizing action in low temperature .

USAGE :
MoSi2 heating element can usually make use of furnace temperature from 1300a to 1800a . It is extensively used in the industries of metallurgy, glass, ceramic refractory, crystal electronic device, industrial furnace manufacture, etc.. It is an essential ideal element when the products are sintering in the high temperature