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Home > News > Product News > The difference between temper.....


The difference between tempered glass and annealed glass

  • Author:kim
  • Source:www.sggglassmanufactuer.com
  • Release on:2016-11-06
Tempered glass and annual glass differ in the way they are processed. To produce any glass, with their raw material sand, soda ash, and lime are mixed together and melted at very high temperatures. This hot liquid is shaped  glass though blowing, pressing, or drawing. Once the glass is fshaped, it goes through an annealing process where it is reheated and cooled. This keeps it from shattering and restores its strength.
The annealing, or cooling process, is what determines whether glass will be tempered or standard. Tempered glass is forced to cool very rapidly, while standard glass is allowed to cool slowly. Cooling the glass quickly makes it stronger, so it can withstand at least four times the pressure of standard glass. It also reacts to breakage differently. 

One of the most obvious differences between the two types of glass is how they shatter or break. Standard glass breaks into large, irregularly shaped, sharp shards. Tempered glass, on the other hand, shatters into small, evenly shaped pieces that pose much less risk of injury to those coming in contact with them

Tempered glass is strength and scratch-resistant than non-treated glass. Outwardly, howover you can not found any difference fron their appearance. Both type of glass can be made in different size ,thickness,or other processed. Ocen glass tempered do not make any process such as drilling holes and cutting.