Study on the Inner Defects in Fused Cast Refractories for Glass Tank Furnace by Non destructive Test

In this paper, an ultrasonic wave method is tried to carry out the non destructive test of the inner defects such as shrinkage cavaties, cracks and pores in fused cast refractoies. The results show that the home made ultrasonic wave equipment is suitable for detecting the size, configuration and location of the common defects in fused cast refractories under the given experimental conditions, some practicable ultrasonic wave testing parameters are provided too.