The heat soak test furnace is a professional testing equipment for the tempered glass. After the tempering process is completed, put the tempered glass inside the heat soak furnace, the hot-dip principle of the homogenizing furnace is used to perform the detonation test and eliminate the residual nickel sulfide. The tempered glass with uneven internal stress is detonated in advance during the test process, thereby avoiding "self-explosion" after the installation of tempered glass, it greatly improves the safety and reliability of tempered glass where fixed in the buildings, minimizes the phenomenon of tempered glass self-breaking and hurting people.