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Foshan crystal glass manufacturer customization, why is the high transparency and refractive index of K9 crystal stronger than ordinary glass

Release time:

Mar 14,2025

　　Component Differences

　　Advantages of K9 Crystal Composition: The main component of K9 crystal is silicon dioxide (SiO₂), which has relatively high purity and very low impurity content. The pure silicon dioxide crystal structure is regular, and the scattering and absorption of light are weak. At the same time, a small amount of boron oxide (B₂O₃) and other components are added to K9 crystal. These additives can optimize the structure of the glass and enhance the ordered arrangement of its molecules. For example, boron oxide can form stable boron-oxygen triangles or boron-oxygen tetrahedra in the glass network structure, making the microstructure of the glass more uniform and reducing the obstacles during light propagation, thereby greatly improving the light transmittance.

　　Limitations of Ordinary Glass Composition: Ordinary glass is generally made from a variety of raw materials. In addition to silicon dioxide, it also contains a large amount of sodium carbonate (Na₂CO₃), calcium carbonate (CaCO₃), etc. These components will introduce some metal ions, such as sodium ions and calcium ions, during the high-temperature melting process. The presence of metal ions will destroy the regularity of the glass network structure, leading to an uneven microstructure inside the glass. When light passes through ordinary glass, these uneven structures will cause light scattering, reducing the light transmittance of the glass. Moreover, ordinary glass contains relatively more impurities, such as iron ions, which absorb light of specific wavelengths, further affecting the light transmission performance of the glass.

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　　Manufacturing Process Influence

Fine Manufacturing of K9 Crystal: The manufacturing process of K9 crystal is usually more refined. In the melting stage, high-temperature and long-time melting is used to ensure that various components are fully and uniformly mixed to form a stable glass structure. Moreover, the temperature and atmosphere are strictly controlled during the melting process to reduce the mixing of impurities and ensure the purity of the glass.

For example, by using high-purity raw materials and advanced melting equipment, the content of bubbles and impurities in the glass can be effectively reduced. In the forming process, precise forming techniques, such as optical cold processing, are often used to ensure that the glass surface is smooth and flat, reducing light scattering caused by surface defects. These processes enable K9 crystal to maintain high transparency while precisely controlling its refractive index.

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Extensive Manufacturing of Ordinary Glass: The manufacturing process of ordinary glass is relatively simple, the production speed is fast, and the control of raw material purity and the melting process is not as strict as that of K9 crystal. In the rapid melting and forming process, it is easy to produce more bubbles and uneven internal stress. Bubbles will become the center of light scattering, greatly reducing the light transmittance of the glass. Uneven internal stress will cause the refractive index of the glass to be inconsistent in different regions, affecting the propagation path of light.

In addition, the forming process of ordinary glass generally pays more attention to production efficiency, and the requirements for surface flatness are relatively low. Minor surface defects will also cause light scattering, resulting in its light transmittance and refractive index precision control being inferior to K9 crystal.

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