Online surface enhancing method of flotation-process aluminum silicate flat glass

Abstract

The invention relates to an online surface enhancing method of flotation-process aluminum silicate flat glass. According to the method, high-temperature Li<+>-containing fused salt is adopted to carry out spraying treatment onto formed aluminum silicate flat glass between a tin slot and a pre-annealing zone in a process of preparing aluminum silicate flat glass by the flotation process. The enhancing method disclosed by the invention is adopted, so that enhanced aluminum silicate flat glass which is 3mm thick replaces common soda-lime-silica glass which is 5mm thick to satisfy glass strength requirements in fields of building and traffic; moreover, cost can be lowered and working hours can be saved.

Description

technical field

[0001] The invention belongs to the field of silicate glass surface enhancement, in particular to an online surface enhancement method for float aluminosilicate flat glass. Background technique

[0002] Ordinary soda-lime-silica flat glass is used more and more in construction, transportation and other fields, but its strength is low. In order to make up for its strength shortcomings, the thickness of flat glass is basically more than 5mm. In special fields, laminated glass is also required. The thickness of flat glass Will further increase, resulting in an increase in its own weight, and the cost will increase accordingly.

[0003] As another option in the market, aluminosilicate flat glass is slightly stronger than ordinary soda-lime-silicate flat glass, so it is welcomed by the market to a certain extent, but it still fails to meet the market's demand for reducing the thickness and weight of flat glass .

[0004] There are also some methods to increase t...