[China Glass Network] Chemically strengthened glass generally refers to aluminosilicate glass treated by chemical strengthening. Although soda lime glass used for windows and the like can be chemically strengthened, the chemically strengthened aluminosilicate glass is superior in strength.
Aluminosilicate glass with high strength and chemical strengthening
It is widely known for being used as a glass cover for the iPhone. It has strong tortuosity and strong impact resistance.
Aluminosilicate glass is rich in sodium ions. By soaking the glass in a high-temperature potassium nitrate (KNO3) solution, the sodium ions on the surface of the glass are replaced by potassium ions (ion exchange). The potassium ion has a larger diameter than the sodium ion, and thus the area of ​​the glass surface layer is added by ion exchange. But in reality, the volume does not change, so "compressive stress" occurs. This is the principle of working to enhance the strength through chemical strengthening.
Recently, "OGS (oneglasssolution)" has received much attention as a method of reducing the number of glass substrates used. OGS details refer to the integration of the contact panel on the glass cover. However, chemically strengthened glass is less compatible with OGS.
Chemically tempered glass is not easy to cut, so it was originally cut by the glass cover manufacturer to shape the shape in the future, and then chemically strengthened.
In summary, if you want to use OGS to reduce costs, the better way is to combine the pictures of multiple contact panels to improve and then cut. Therefore, in order to be able to use the OGS method, glass manufacturers supply large-scale glass that is easier to cut and chemically strengthened.
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