The Function of Glass Chemical Tempering Furnace

  • By:LiaoDa
  • Date:2022/07/13

LiaoDa's glass chemical tempering furnace (GCTF) is a type of industrial furnace designed to work with a variety of materials and processes. The process uses a combination of heat and chemicals to change the physical properties of glass. While the process is known as thermal tempering, there are also certain aspects of this process that are not so easily understood. If you're considering purchasing one of these furnaces, be sure to read through this article before making the decision. Besides, it can be customized to suit your production needs and your factory layout. These furnaces can provide excellent flatness and transparency to the glass. The blower and collector group are controlled by a driver that adjusts the speed and pressure of the furnace. 


The temperature, moisture, and concentration of SO₂ all affect the formation of sodium vapours. Proper ventilation and roller seals are necessary for controlling dust in the furnace. The thermal gradient and atmosphere distribution of the furnace are also essential for achieving a stable environment for the formation of Na2SO4 . The presence of SO₂ in the glass chemical tempering furnace provides the final touch of contact for the glass, forming a sodium sulphate interlayer. At high temperatures, reactivity is achieved by the formation of different sulphates. However, it is harder to obtain these reactivity levels inside glass, due to the stability of ionic species.


Continuous Glass Pot Cover Tempering Furnace    

The intensity of a land glass tempering furnace is three to five times higher than the intensity of a standard glass tempering furnace. This ensures that visual defects are not present in the finished glass. The most important difference between thermal and chemical tempering is the degree of distortion the glass undergoes. Chemically strengthened glass does not experience distortion during the process and has optical properties as good as float glass. Thermal tempered glass has poor optical properties, bows while it moves inside the tempering furnace, and is usually wavy. During this process, the temperature is too high. Besides, thermally strengthened glass is not very repeatable, requiring a lot of work.


Another important difference between liquid and gas-based tempering is the specific heat of water. Liquids have high specific heats and their vaporization is much higher. The specific heat of water is much larger than that of air, so the water mist will rapidly absorb the heat and turn to liquid. The high heat of vaporization of water also removes a large portion of heat from a glass surface. Furthermore, it increases the tensile strength of glass. Chemical glass strengthening makes the glass stronger by promoting ion exchange in its surface layers, while encouraging tension in its inner layers. The resulting tension strengthens the glass and prevents it from breaking or cracking. The process can be used on even the thinnest glass without warping the surface. As a result, it is an excellent option for windows and optical products. The benefits of this treatment go far beyond the aesthetics of a piece of glass.




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