Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Not subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Used for raising & maintaining high temperature Both (b) and © Not subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Used for raising & maintaining high temperature Both (b) and © ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite bricks are Made by mixing 30% chromite and 70% periclase Neutral in nature Acidic in nature Having higher RUL than silica bricks Made by mixing 30% chromite and 70% periclase Neutral in nature Acidic in nature Having higher RUL than silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome refractories Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Are not at all resistant to the corrosive action of iron oxide Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Are not at all resistant to the corrosive action of iron oxide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology A steel member used in the furnace construction to take the thrust of the brickwork is called Baffle Breast wall Buckstay Armouring Baffle Breast wall Buckstay Armouring ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Semi-silica bricks Porous fireclay bricks Dead burnt magnesite ramming mass Silicon carbide bricks Semi-silica bricks Porous fireclay bricks Dead burnt magnesite ramming mass Silicon carbide bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Resistance to abrasion Resistance to slag peneration Resistance to corrosion by slag Stability of volume at high temperature Resistance to abrasion Resistance to slag peneration Resistance to corrosion by slag Stability of volume at high temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS