Rapid toughening forming method of ultra-thin glass with thickness not larger than 3 mm

Abstract

The invention provides a rapid toughening forming method of ultra-thin glass with the thickness not larger than 3 mm. The method comprises the steps of heating and air blowing shaping, and a rapid toughening forming process is added between the heating step and the air blowing shaping step; in the heating step, glass is heated and moves back and forth under conveying of a heating roller way set ina toughening furnace, and a small bent section air grid roller way and a flat air grid roller way are sequentially arranged behind the heating roller way set. The rapid toughening forming process refers to that the heated flat glass quickly passes through the small bent section air grid roller way, and upper and lower air grids in the small bent section air grid roller way introduce high-pressurecooling air to conduct rapid toughening forming. In the air blowing shaping step, the glass moves on the flat air grid roller way back and forth, and upper and lower air grids in the flat air grid roller way are opened to introduce a small amount of shaping air to conduct air blowing shaping on the glass. The method is high in processing efficiency and low in production cost, the success rate ofrapid toughening forming of the glass with the thickness not larger than 3 mm is increased, and glass damage is reduced.

Description

technical field [0001] The invention relates to the technical field of glass processing, in particular to a rapid tempering forming method for ultra-thin glass with a thickness not greater than 3 mm. Background technique [0002] Tempered glass is a kind of prestressed glass. In order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass. When the glass is subjected to external forces, the surface stress is first offset, thereby improving the bearing capacity and enhancing the compressive resistance of the glass itself. properties, thermal stability, etc. Therefore, the safety of tempered glass is high. When the glass is damaged by external force, the fragments will form obtuse-angled small particles similar to honeycomb, which is not easy to cause serious harm to the human body. Therefore, tempered glass is widely used in construction and home decoration. [0003] Tempered glass is mainly...

AI Technical Summary

Problems solved by technology

However, this process is not suitable for the current ultra-thin glass with a thickness of no more than 3mm, because the ultra-thin glass with a thickness of no more than 3mm is prone to breakage and cracking during the cooling stage.