Production process for blue glass

By employing a precise proportioning and phased control process for blue glass production, the problems of uneven coloring and insufficient mechanical properties in blue glass have been solved, resulting in improved optical purity and superior mechanical properties to meet the needs of high-end applications.

CN121850363AInactive Publication Date: 2026-04-14ANHUI JINGCHUANG ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511986130.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-04-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing blue glass production processes suffer from uneven coloring, insufficient mechanical properties, and poor optical performance, making it difficult to meet the needs of high-end applications.

Method used

Using precisely proportioned basic raw materials, colorants, and functional additives, combined with controlled steps such as staged mixing, melting in a reducing atmosphere, multi-stage clarification and homogenization, and float forming, including melting in an alumina furnace, stirring and clarification under a nitrogen-oxygen mixed protective atmosphere, four-stage annealing treatment, and chemical strengthening, we ensure the uniformity of composition and product consistency.

Benefits of technology

It achieves a synergistic improvement in high optical purity and excellent mechanical properties. The product has high UV cutoff capability, good thermal shock stability and high strength, meeting the needs of high-end applications.

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Abstract

The invention discloses a production process for blue glass, and relates to the technical field of blue glass production. The process comprises the following steps: S1, raw material pretreatment: respectively grinding and drying a basic glass raw material, a coloring agent and a functional additive, and then mixing in sequence; s2, melting the mixture in a primary melting furnace in a reducing atmosphere, and adding a reducing agent; s3, transferring the primarily molten glass liquid into a main furnace, and stirring and clarifying in a nitrogen-oxygen mixed protective gas environment; s4, cooling the clarified glass liquid, and continuously stirring and homogenizing; according to the preparation method, the basic raw materials, the coloring agent and the functional additive are accurately proportioned, and control steps of staged mixing, reducing atmosphere melting, multi-stage clarification and homogenization, float forming and the like are combined, so that synergistic improvement of high optical purity and excellent mechanical performance is realized. In the process, the purity, the granularity, the charging sequence and the thermal regulation of the raw materials are strictly controlled, so that the component uniformity and the product consistency are guaranteed.
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