Horizontal roller way type glass continuous tempering method

Abstract

The invention relates to a horizontal roller way type glass continuous toughening method, which comprises the following steps of: bearing and transmitting glass by a conveying roller way in toughening equipment, heating the glass in a heating furnace to a target temperature, discharging the glass out of the furnace, quenching the glass in a toughening grid, continuously cooling the glass until the glass is completely hardened until the temperature is close to normal temperature, and obtaining toughened glass, wherein when the glass is in a softened state, the glass is heated in the heating furnace to be softened until the glass is cooled in the tempered grid to be hardened, and then is driven by the conveying roller way to continuously move in the same direction, then the glass is heated to a target temperature in the heating furnace, then is discharged out of the furnace, enters the toughening grid, and starts to quench from entering the toughening grid until the motion speed of quenching is finished, and the motion speed is uniform motion not lower than 400 mm/s. According to the scheme, the transmission speed in the toughening process is optimized, so that the uniformity and flatness of the surface stress of a glass product in the horizontal roller way type glass continuous toughening method are improved, the equipment cost is reduced, and the production occupied area is reduced.

Description

technical field [0001] The invention relates to the technical field of glass tempering treatment, in particular to a horizontal roller table continuous glass tempering method. Background technique [0002] At present, in the continuous glass tempering process of the horizontal roller table, the transmission speed of the glass is less than 200mm / s. The stress difference between the front and rear ends is too large. Also because the transmission speed of the glass is too small, when the glass is in the softened state, it takes a long time to cross the distance between the roller tables, the magnitude of the collapse is relatively large, and the flatness index of the tempered glass product is poor. The transmission speed of the glass is uniform. In order to maintain this constant speed, necessary heating and cooling time is required. The length of the equipment for this tempering method is relatively long, the equipment cost is high, and the space occupied is large. [0003] ...

AI Technical Summary

Problems solved by technology

The transmission speed of glass is uniform. In order to maintain this constant speed, necessary heating and cooling time is required. The length of the equipment for this tempering method is relatively long, the equipment cost is high, and the space occupied is large.

[0003] That is to say, the currently widely used horizontal roller-type glass continuous tempering method has the defects of excessive surface stress difference of glass products, low flatness, high equipment cost, and large space occupation.

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