Relationship between temperature and fiber life
时间:2015-06-24
The use of refractory fiber is closely related to the use of temperature and service life and its use conditions (furnace atmosphere, the composition and content of corrosive substances, etc.).
(1), refractory fiber in allowing the use of temperature conditions, the crystal growth is slow, the nature of the fiber is relatively stable, in an oxidizing atmosphere is not affected by the impact of the external force, life of up to 5 - 10 years.
(2), reducing furnace gas should be used with high pure synthetic material for fiber raw material as an industrial furnace wall lining material, and in refractory fiber wall lining is coated on the surface of the coating, it not only improves the chemical stability of fiber lining, and improve the wind resistance performance of the fiber lining and reduce the fiber wall lining of heat shrinkage. In order to make in the reductive atmosphere of fiber wall lining heat insulation effect of the oxidizing atmosphere and work the same, must according to the reduction of the composition of the atmosphere, through calculation of cotton fiber thickening wall lining thickness.
(3) the use temperature of refractory fiber shall be determined according to the categories (gas, oil, coal), furnace temperature, furnace atmosphere and the atmosphere of the furnace.
Under the A, reducing atmosphere, the use of low temperature 100 to 150 degrees, the standard type of aluminum silicate fiber in reducing atmosphere, the use of temperature is 850~900.
B, fuel industrial furnace, refractory fiber wall lining the use of temperature should be more electric heating industrial furnace lining the use of low temperature 150~200.
C, vacuum atmosphere, the use of low temperature 200~250.