Ultra-white and ultra-thick float glass and preparation method thereof
Through specific raw material combination and process optimization, the shortcomings of ultra-white and ultra-thick float glass in terms of light transmittance and mechanical properties are solved, and the production of high-performance ultra-white and ultra-thick float glass is realized.
Patent Information
- Application Number
- CN202510874197.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2045-06-27
AI Technical Summary
It is difficult for the prior art to produce ultra-white ultra-thick float glass with the same performance as the balanced thickness, especially when producing thicknesses of 19 mm or above, there are problems of insufficient light transmittance and mechanical properties.
The dense glass network structure is constructed using quartz sand, dodecanoic acid heptaalaluminate, titanium oxide whiskers, lanthanum hexaboride, barite, and lithium hydroxide as the main raw materials. A mixture of Ca3(SbO4)2, Mg2SnO4, zinc selenite and neodymium oxide is used as the clarification decolorizer. Through four-stage gradient melting, four-stage reduction and seven-stage ladder annealing processes, the network structure is optimized and internal stress is eliminated.
The high light transmittance and good bending strength of ultra-white and ultra-thick float glass are achieved, ensuring the stability of the mechanical properties and optical properties of the glass.