Disadvantages of tempered glass:
1. The toughened glass can no longer be cut and processed. The glass can only be processed to the required shape before toughening, and then toughened.
2. Although the strength of tempered glass is stronger than that of ordinary glass, tempered glass has the possibility of self-explosion (breaking by itself) when the temperature difference changes greatly, while ordinary glass has no possibility of self-explosion.
Specific reasons for the spontaneous explosion of tempered glass:
Because the glass raw material contains nickel sulfide crystals, it is impossible to completely avoid the existing manufacturing technology in the world. This kind of nickel sulfide crystal has two forms, A form and B form. Under certain time and temperature conditions, the A form will change to the B form, and the volume of the B form is 3-5 times the volume of the A form.
Although the volume of this kind of crystal is very small, if this kind of crystal becomes B-shape inside the tempered glass, the increase in volume will affect the internal compressive stress balance of the whole piece of glass and cause the glass to break. It can be understood as volume expansion to break the glass. There is no compressive stress inside ordinary glass, and the deformation of nickel sulfide crystals will not cause these problems. It is understood that there is enough space to allow the nickel sulfide crystal to deform.
HHG is a professional glass manufacturer and glass solution provider include range of tempered glass, laminated glass, textured glass and etched glass. With more 20 years development, there are two produce lines of pattern glass,two lines of float glass and one line of restoration glass. our products 80% ship to overseas, All our glass.products are strict quality control and carefully packed in strong wooden case, ensure you receive the finest quality glass safety in time.
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