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Can tempered glass be cut?

  • Author:DONGGUAN KUNXING GLASS CO LTD
  • Source:Original
  • Release on:2021-03-05

Tempered glass is very popular in our life and has a very wide range of use. Tempered glass is particularly popular in today's life and has a very wide range of uses. Because people don't know much about the properties of glass, many problems often arise. We will introduce to you why tempered glass cannot be cut, and help you to understand it further.


1. Can't tempered glass be cut?


toughened glass

(1). Once tempered glass is finished, it cannot be cut, drilled or shaped.

(2). Tempered glass (Reinforced glass, toughened glass) belongs to safety glass. Tempered glass is actually a kind of prestressed glass. In order to improve the strength of glass, chemical or physical methods are usually used to form compressive stress on the glass surface. When the glass is subjected to external force First, the surface stress is offset, thereby improving the load-bearing capacity and enhancing the wind pressure resistance, cold and heat resistance, and impact resistance of the glass itself.

(3). Glass tempered grade:

Tempered glass: Tempering degree=2~4N/cm, surface stress of tempered glass of glass curtain wall α≥95Mpa;

Heat strenghened glass: Tempering degree=2N/cm, surface stress of semi-tempered glass of glass curtain wall 24Mpa≤α≤69Mpa;

Tempered glass: toughness> 4N/cm.

2. Why can't tempered glass be cut?

The manufacturing method of tempered glass is different from ordinary glass. It is processed by ordinary glass at a high temperature of 600 to 700 degrees, and then rapidly and uniformly cooled like steel. The surface of the glass forms a uniform and dense compressive force, just like putting on the glass. An invisible steel armor was added, which greatly increased the strength of the glass. But the glass after tempering can no longer be cut.

Because the internal stress of the tempered glass has reached a balance, the molecules are in a tight state, as long as one place breaks the entire equilibrium state, it will break and the whole piece of glass will collapse. Therefore, when manufacturing toughened glass, the size and shape must be determined first and then processed.