Ladle is the necessary equipment to carry out the molten steel, continuous casting. Due to the many kinds of steel in the ladle refining process, including argon blowing temperature, alloy composition adjustment, injection refining and vacuum processing, working conditions of ladle 
lining is more and more severe.
lining is more and more severe.
One, the ladle refractories have what requirements?
(1) High temperature resistance. Can withstand high temperature steel for a long time without melting and softening.
(2) Heat shock, can withstand repeated loading of steel, and not cracking off.
(3) The slag erosion resistance can withstand erosion slag and slag basicity change of lining.
(4) Having sufficient high temperature mechanical strength to withstand the stirring and erosion of the molten steel.
(5) The liner has a certain expansion, in the role of high temperature steel, close contact 
between the linings and become a whole.
between the linings and become a whole.
Two. What are the requirements for the working environment of the ladle refractory?
(1) The bearing of the steel temperature is higher than the die cast steel.
(2) The residence time of molten steel in ladle is prolonged.
(3) The effect of the ladle lining in the high temperature vacuum of the self – evaporation and the stirring of the molten steel.
(4) The impact of the lining of the steel is subjected to the impact.
(5) Slag of lining.
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