A method for high-temperature large and extra thick slab with liquid core playing box

The present invention discloses a method of large and extra thick slab with liquid core for playing a high-temperature tank, characterized by comprising the steps of: a steel ladle into a large and extra thick slab mold cavity; end of the pouring from 0.5 to 3 hours later, a high temperature with a liquid core to play tank; large cooled until a thick slab Patent Laid-large thick slab is completely solidified. The method disclosed in the present invention eliminates the large and extra-thick thermal cracks inside the slab shrinkage, porosity defects and an outer surface.