Superthin float glass

Abstract

Super-thin float glass consists of SiO2 71.5-72.5wt%, Al2O3 1.3-2.5wt%, Fe2O3 0.04-0.9wt%, CaO 6.0-8.20wt%, MgO 4.3-5.0wt%, K2O 0.5-1.5wt%, and Na2O 11.0-13.4wt%. Its advantages include higher transmittance and elastic modulus, better hardness and quality, and no production defect.

Description

Technical field [0001] The invention belongs to an ultra-thin float glass, and is particularly suitable for a medium-aluminum, high-magnesium, and low-calcium soda-lime-silicate glass formed by the float method. Background technique [0002] The basic structure of glass is mainly composed of glass network formers, network exosome oxides and intermediate oxides. 1. Glass network formers, such as SiO 2 , B 2 o 3 ,P 2 o 5 etc. can form glass alone. 2. Network exosome oxides (network denatured body), such as K 2 O, Na 2 O, CaO, MgO, etc. cannot form glass, but can change the network structure, thereby changing the performance of the glass. 3. Intermediate oxides, such as Al 2 o 3 、TiO 2 etc., its role is between the network former and the network denaturer, according to the characteristics of the overall components, it either participates in the formation of the network, or is outside the network, thereby affecting the properties of the glass. [0003] The glass comp...

AI Technical Summary

Problems solved by technology

2. Network exosome oxides (network denatured body), such as K 2 O, Na 2 O, CaO, MgO, etc. cannot form glass, but can change the network structure, thereby changing the performance of the glass

Therefore, on the one hand, it is not easy to draw ultra-thin float glass products below 1.5 mm with common float glass components, and on the other hand, it cannot meet the high-quality requirements of ultra-thin glass products.