Half-thermal-state thermal shock resistance experimental device and method for refractory material

The invention relates to a half-thermal-state thermal shock resistance experimental device and a half-thermal-state thermal shock resistance experimental method. The device comprises a fracture resistance experiment instrument, a thermal shock furnace, a fan and a temperature measurer, wherein the fracture resistance experiment instrument is used for determining normal-temperature breaking strength and high temperature breaking strength of an experimental test sample; the thermal shock furnace is used for heating the experimental test sample; the fan is used for cooling the heated experimental test sample; the temperature measurer is used for detecting the surface temperature of the cooled experimental test sample. The method comprises the steps of preparing the experimental test sample; acquiring first normal temperature breaking strength Pc; acquiring high temperature breaking strength Pg; heating and cooling the experimental test sample; stopping cooling the experimental test sample when the surface temperature of the experimental test sample is detected by the temperature measurer to reach a set value; sequentially and alternately carrying out the heating process and the cooling process to set times; acquiring second normal temperature breaking strength Pr; calculating a strength loss rate by virtue of a strength loss formula. By adopting the experimental device and method, the application working condition of the refractory material in a chute area of a dry quenching furnace can be accurately simulated, and the half-thermal-state thermal shock resistance of the refractory material can be quantized.