[China Glass Network] Gas medium tempering method, namely air-cooling tempering method. Including horizontal air cushion tempering, horizontal roller tempering, vertical tempering and other methods. The so-called air-cooling tempering method is a production method in which the glass is heated to a softening temperature (650 to 700 ° C) close to the glass, and then air is simultaneously blown on both sides to rapidly cool the glass to increase the mechanical strength and thermal stability of the glass. . Quenching of heated glass is an important part of the production of tempered glass by physical tempering. The basic requirement for quenching glass is to quickly and uniformly cool, so as to obtain uniform distributed stress. In order to obtain uniform cooling glass, cooling must be required. The device effectively dissipates the heat, facilitates the removal of accidental broken glass and minimizes its noise. Advantages and Disadvantages: The advantages of air-cooled tempering are lower cost, higher output, higher mechanical strength, thermal shock resistance (large safe working temperature up to 287.78.c) and high heat resistance gradient ( Can withstand 204.44. C), and air-cooled tempered glass can not only enhance the mechanical strength, but also form small fragments when broken, which can reduce the damage to the human body. However, there are certain requirements for the thickness and shape of the glass (the thickness of the glass tempered by the domestic equipment is generally about 3 mm), and the cooling rate is slow and the energy consumption is high. For the thin glass, there is still a problem of glass deformation during the tempering process. Can not be applied in areas where optical quality requirements are high. Scope of application: At present, air tempering technology is widely used, and air tempered glass is mostly used in automobiles, ships, and buildings.
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