Large-size natural ice crystal effect imitating glass product and industrial casting method thereof

Through a systematic technical solution, using calcium fluoride as a nucleating agent and a four-stage thermal process, the problems of low yield and non-reproducible process of large-size imitation natural ice crystal glass products have been solved, realizing high-strength, mass-producible ice crystal glass products that meet the needs of high-end architecture and public art.

CN121735545APending Publication Date: 2026-03-27SHENZHEN LUQI DESIGN CREATIVE CO LTD
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Patent Information

Application Number
CN202610043340.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve stable mass production of large-size, high-quality, and heavy-duty imitation natural ice crystal glass products, resulting in problems such as low yield, non-repeatable processes, poor crystallization uniformity, and uncontrolled thermal stress.

Method used

A systematic technical solution is adopted, including material formulation design, special equipment development and quantifiable thermal control strategy. Calcium fluoride is used as a nucleating agent, combined with a four-stage quantitative thermal regime, to achieve uniform internal crystallization and stress management in large-size glass products. A three-layer composite refractory mold is used for precise temperature monitoring and control.

Benefits of technology

It achieves a high yield rate (≥70%) for large-size imitation natural ice crystal glass products, improves bending strength by 15%-30%, and ensures repeatability and predictability of the process, meeting the needs of high-end architecture and public art.

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Abstract

The invention relates to a large-size glass product with a natural ice crystal imitating effect and an industrial casting method of the large-size glass product. The product is a lead-free glass casting with the weight larger than or equal to 100 kg, dendritic crystal-shaped or snowflake-shaped devitrified phases which are formed by growing calcium fluoride as crystal nucleuses and are distributed randomly are arranged in the product, and the three-dimensional aesthetic effect imitating natural ice crystals is achieved. The method comprises the following steps: mixing lead-free glass particles with a calcium fluoride nucleating agent with a specific particle size, and filling a mixture into a special mold with a three-layer composite structure and a temperature monitoring function; and executing a four-stage programmed thermal regulation including melting homogenization, nucleation cooling, isothermal crystallization and super-slow multi-step annealing, wherein the melting and heat preservation time and the maximum thickness of the product meet the quantitative relation of t = k.H. Through systematic collaboration of materials, molds and processes, the technical problems that crystallization in large-size glass is not uniform and cracking is easily caused by thermal stress are solved, high yield and stable mass production of products of 500 kg or above are achieved, and the method is suitable for the fields of high-end buildings, art devices and decoration.
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