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what's the difference between tempered glass and heat strength glass

  • Author:kim
  • Source:www.sggglassmanufacturer.com
  • Release on :2016-11-21
Toughened glass: by heating to the soften point and with cooling down treatment, the glass surface shows a uniform compressive stress, the internal uniform tensile stress, which is the flexibility of the glass better, the strength increased several times.

The upper and lower surfaces of the toughened glass, like the middle contraction of the spring mesh, stretch out when the glass is bent, so that it can withstand high strength  without breaking, which is why  toughened glass has higjly strength . If, for some reason, the sheet is broken,the strength balance was broken,the glass sheet will broken into small fragments.


Tempered glass has the following characteristics:


Security: tempered glass is the strength of ordinary glass 3 - 4 times, broken after a small granular, can be broken glass or splash damage caused by the smallest, and therefore belong to safety glass. 

Thermal stability: Tempered glass has good thermal stability, in the same piece of glass can exist on the temperature difference of 200 ℃ without thermal cracking.
In this case,
Disadvantages: there is blew phenomenon, that is, the tempered glass in the natural state of the phenomenon of fracture, and steel processing will affect the smoothness of the glass.


heat strength glass:It's east to understand is that between ordinary glass and tempered glass , its strength is about 2 times the normal glass, broken fragments are sharp, so do not safety glass, heat strength glass cracks will not intersect , Although not part of the safety glass, but even when the four sides of the clamping installation rupture, each piece of the debris are edge fixed, and therefore still have a certain degree of security of its thermal stability is weaker than glass, resistant to 100 ℃ temperature difference Resulting in thermal cracking.
In this case, 

The biggest advantage is that there is no self explosion defects. It should be noted that, under 8mm thickness of the annealed glass can be processed into heat strength glass, Exceeding 10mm thickness of the glass is difficult to process into a semi-tempered glass, processed in time it may be nothing, or do not meet any product standards.

Source form www,sggglassmanufacturer.com