Ultra-high-refractivity environment-friendly cameo glass and preparation method thereof
An environment-friendly, high-refractive technology, applied in the field of environment-friendly gem glass compositions, can solve environmental problems, high cost, imitation gem glass quality is not high enough, quality gap is large, etc., and achieves good chemical stability, pure color and luster. , The effect of easy grinding and polishing
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Embodiment 1
[0029] The composition of the ultra-high refraction environment-friendly sapphire glass of the present embodiment is (percentage by weight): SiO 2 10%, BaO 32%, TiO 2 45%, ZnO 1%, ZrO 2 8%, B2 o 3 1%, CaO2%, La 2 o 3 0.5%, Y 2 o 3 0.5%, Nd 2 o 3 0.05%, Er 2 o 3 0.02%, NiO 0.02%.
[0030] The preparation method of the ultra-high refraction environment-friendly sapphire glass in this embodiment is as follows:
[0031] (1) Accurately weigh each component and mix them uniformly;
[0032] (2) Add the mixed components into the platinum crucible furnace at 1000°C, and heat up to 1240°C at a heating rate of 5°C / min for 2 hours for melting;
[0033] (3) Pour the melted glass into clean water at about 10°C-20°C and quench it into glass particles, then move it to an oven at 150°C for drying for secondary melting;
[0034] (4) Melt the dried glass in a platinum crucible at 1200°C for 0.5h for a second time, and stir evenly, lower the furnace temperature to 1180°C and ...
Embodiment 2-7
[0038] .
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