Glass ceramic with unique optical property and preparation method thereof
A technology of optical properties and glass-ceramics, which is applied in glass manufacturing equipment, glass furnace equipment, glass molding, etc., can solve the problems of lower thermal efficiency, lack of combination of applications, and failure to meet the entire area through transmission.
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Embodiment 1
[0036] A black glass-ceramic with unique optical properties, the composition of which is by weight percentage:
[0037] Li 2 O4.2%, Al 2 o 3 23%, SiO 2 62.2%, Na 2 O0.6%, K 2 O0.6%, MgO1.4%, ZnO2%, P 2 o 5 1.47%, TiO 2 3.25%, ZrO 2 0.8%, SnO 2 0.25%, MnO 2 0.05%, V 2 o 5 0.06%, Fe 2 o 3 0.12%.
[0038] A kind of preparation method of described black glass-ceramic with unique optical performance, comprises the steps:
[0039] a) mixing all the materials in proportion to form a mixture;
[0040] b) Add the mixture to an oxy-combustion kiln for calcining and melting. The temperature of the kiln is between 1650°C and 1680°C to form molten glass; calcining through an oxy-fuel combustion kiln can make the material more heated Uniformity, fast heating, and the formed glass liquid is uniform and stable.
[0041] c) The molten glass is cooled and homogenized in the working pool, and pressed into a glass plate with a thickness of 2mm-15mm by a calender at 1400°C-1450°C...
Embodiment 2
[0047] A black glass-ceramic with unique optical properties, the composition of which is by weight percentage:
[0048] Li 2 O3.95%, Al 2 o 3 21.4%, SiO 2 65.04%, Na 2 O0.1%, K 2 O0.1%, MgO0.43%, CaO0.5%, SrO0.4%, BaO1.05%, P 2 o 5 0.8%, TiO 2 4%, ZrO 2 1.5%, SnO 2 0.5%, V 2 o 5 0.08%, Fe 2 o 3 0.15%.
[0049] A kind of preparation method of described black glass-ceramic with unique optical performance, comprises the steps:
[0050] a) mixing all the materials in proportion to form a mixture;
[0051] b) Adding the mixture to an oxy-fuel furnace for calcining and melting, the temperature of the furnace is between 1650°C and 1680°C to form molten glass;
[0052] c) cooling and homogenizing the molten glass through a working pool, and pressing it into a glass plate with a thickness of 2mm-15mm at 1400°C-1450°C with a calender;
[0053] d) subjecting the glass plate to annealing, cooling, and cutting procedures to make a glass original sheet;
[0054] e) Put the...
Embodiment 3
[0058] A black glass-ceramic with unique optical properties, the composition of which is by weight percentage:
[0059] Li 2 O3.2%, Al 2 o 3 19%, SiO 2 68%, Na 2 O0.6%, K 2 O0.25%, MgO0.3%, CaO0.35%, BaO1.35%, ZnO1%, P 2 o 5 1.5%, TiO 2 2.8%, ZrO 2 1.45%, SnO 2 0.1%, CoO0.02%, V 2 o 5 0.01%, Fe 2 o 3 0.07%.
[0060] A kind of preparation method of described black glass-ceramic with unique optical performance, comprises the steps:
[0061] a) mixing all the materials in proportion to form a mixture;
[0062] b) Adding the mixture to an oxy-fuel furnace for calcining and melting, the temperature of the furnace is between 1650°C and 1680°C to form molten glass;
[0063] c) cooling and homogenizing the molten glass through a working pool, and pressing it into a glass plate with a thickness of 2mm-15mm at 1400°C-1450°C with a calender;
[0064] d) subjecting the glass plate to annealing, cooling, and cutting procedures to make a glass original sheet;
[0065] e) P...
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