High-refractive-index watch glass for watch outer cover and production process of high-refractive-index watch glass

Abstract

The invention discloses high-refractive-index watch glass for a watch outer cover and a production process of the high-refractive-index watch glass. The high-refractive-index watch glass is prepared from silicon dioxide, aluminum oxide, borax, calcium carbonate, zinc oxide, dolomite, sodium carbonate, a clarifying agent and an initiator. The mass percentage of each component is as follows: 20-30%of silicon dioxide, 15-25% of aluminum oxide, 15-25% of borax, 10-20% of calcium carbonate, 2-4% of zinc oxide, 10-20% of dolomite, 1-3% of sodium carbonate, 5-10% of a clarifying agent and 2-5% of aninitiator. The glass is safe and reliable, silicon dioxide, aluminum oxide, borax, calcium carbonate, zinc oxide and dolomite are adopted as raw materials and subjected to dissolving processing and then compression molding, the glass crystallization phenomenon is reduced, the stability and strength of the watch glass are improved, the glass absorbs short-wavelength rays, the refractive index anddispersion of the watch glass are improved, the process is simple and rigorous, the raw materials are cheap, and the cost is low; machining is convenient, the production cost is greatly saved, and machining and production are facilitated.

Description

technical field [0001] The invention relates to the technical field of watch glass, in particular to a high-refractive-index watch glass for a watch cover and a production process thereof. Background technique [0002] Watch glass is the transparent lens on the surface of the watch, which is used to protect the dial of the watch surface; the watch mirror can be divided into three types according to the material: plastic mirror, quartz glass mirror, and synthetic sapphire glass mirror; plastic mirror is relatively not afraid of falling; traditional watch glass uses long Stone is used as a raw material, which is melted and processed into shape. The glass crystallization phenomenon is serious during processing, which reduces the stability of watch glass, resulting in a decrease in strength, and the processed glass cannot absorb short-wavelength rays, which reduces the refractive index and dispersion of watch glass. At the same time, traditional watch glass The cost of raw mater...

AI Technical Summary

Problems solved by technology

[0002] Watch glass is the transparent lens on the surface of the watch, which is used to protect the dial of the watch surface; the watch mirror can be divided into three types according to the material: plastic mirror, quartz glass mirror, and synthetic sapphire glass mirror; plastic mirror is relatively not afraid of falling; traditional watch glass uses long Stone is used as a raw material, which is melted and processed into shape. The glass crystallization phenomenon is serious during processing, which reduces the stability of watch glass, resulting in a decrease in strength, and the processed glass cannot absorb short-wavelength rays, which reduces the refractive index and dispersion of watch glass. At the same time, traditional watch glass The cost of raw materials is expensive, the processing is troublesome, and the production cost is increased, which is not conducive to processing and production; in view of these defects, it is necessary to design a watch glass with high refractive index for watch cover and its production process

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