Glass tempering furnace also known as glass tempering equipment,Glass toughening unit,Tempering furnace,Toughening equipment,Tempering unit, etc.The glass furnace uses physical or chemical methods,Forming compressive stress on glass surfacee79fa5e98193e4b893e5b19e31333337613839layer Tensile stress layer formed inside When the glass is acted by external force,Compressive stress layer can offset part of tensile stress,Avoid broken glass,So as to improve the strength of glass.

The glass furnace uses physical or chemical methods,Forming compressive stress layer on glass surface Tensile stress layer formed inside When the glass is acted by external force,Compressive stress layer can offset part of tensile stress,Avoid broken glass,So as to improve the strength of glass.More Than This,The microcracks on the glass surface become more fine under this pressure stress,It also improves the strength of glass to a certain extent.
At present, the commonly used physical tempering method is to heat the glass to the softening point 650℃About ,At this time, the glass can still maintain its original shape,But the particles in the glass have a certain migration ability,Carry out structural adjustment,In order to eliminate the internal stress quickly,Then the tempered glass of the glass tempering furnace is blown and quenched,When the temperature is balanced,The surface of glass produces compressive stress,The inner layer produces tensile stress,That is, the glass produces a uniform and regular distribution of internal stress,The tensile strength of glass as brittle material is improved,Thus, the bending strength and impact strength of the glass are improved.meanwhile,Due to the existence of uniform stress inside the glass,Once the local part of the glass is broken due to the impact beyond its strength,Self explosion into small particles under the action of internal stress,Improved its security.therefore,Toughened glass can also be called prestressed glass or safety glass.
Glass tempering furnace in the process of tempering,Generally, wind spots and stress spots are produced,The wind spots are in the process of cooling,It is formed by uneven stress of glass caused by uneven cold,When it is observed at a special angle, it can see the light and dark stripes on the glass surface.Stress spots are also caused by uneven stress,For example, during the heating process,Uneven stress caused by temperature difference between the side and the middle of the furnace.At present, the stress spot has not been completely avoided,However, well-designed tempering equipment can minimize the visibility of stress spots.