What happened to the sudden explosion of the glass table?

There are many reasons for the self-explosion of tempered glass. One reason is the volume expansion of nickel sulfide particles contained therein.

Nickel sulfide particles in glass are randomly distributed. If they are located at the maximum stress of tempered glass (that is, when the object is deformed due to external factors, such as force, humidity, temperature field changes, etc.). Particles may become the initiation point of self-explosion of tempered glass because of the internal forces that interact with each other to resist external factors and try to restore the object from its deformed position to its pre-deformed position.

Another reason is the quality problem of glass surface and edge. In the process of processing, transportation, storage and construction, glass is prone to scratches, cracks and edges and corners. There are a large number of microcracks on the glass surface, and the propagation of microcracks may be accelerated under the conditions of water vapor and placing heavy objects on the glass table. When the crack size approaches or reaches the critical value, the crack expands rapidly, which eventually leads to glass fracture.

In addition, the larger the size of tempered glass, the thicker the glass plate, and the greater the probability of self-explosion.

Extended data

preventive

First, choose tempered glass products produced by regular manufacturers, because the material selection process is strictly controlled and the probability of mixing impurities is low.

Second, do a good job of protecting the glass to prevent the edge from falling off. In addition, when consumers buy tempered glass products, they should first check whether there are factory addresses, factory names, implementation standards, 3C marks, etc.

Thirdly, sticking an explosion-proof film on tempered glass can reduce the harm of glass fragments to people.

People's Daily Online-The tempered glass dining table suddenly exploded into pieces and became an untimely bomb at home.