A glass-ceramic float preparation process applied to 5g communication mobile terminals
A technology of glass-ceramics and mobile terminals, which is applied in the field of glass-ceramics float preparation process applied to 5G communication mobile terminals, can solve the problems of limited forming thickness, low glass viscosity, and shortened life, and achieve improved mechanical properties and mechanical properties. Excellent performance and strong devitrification resistance
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Embodiment 1
[0038] A float method for preparing glass-ceramics for 5G communication mobile terminals, the preparation process is as follows:
[0039] A. First, the raw materials are accurately weighed according to the material recipe, and the batches that are forced to mix evenly are put into the feeding pool at regular intervals and quantitatively. The ingredients are as follows: 50 parts of quartz sand, 10.5 parts of alumina, 15 parts of sodium carbonate, 2.5 parts of potassium nitrate, 2 parts of lithium carbonate, 9.5 parts of magnesium oxide, 3 parts of titanium oxide, 2.5 parts of zirconia, 4 parts of zinc oxide, 0.5 parts of rubidium, 0.25 parts of gallium oxide, 0.25 parts of europium oxide;
[0040] B. The batch material in the melting pool is heated to 1525°C for melting, clarified, stirred and homogenized to obtain a defect-free molten glass of good quality;
[0041] C. Float forming: Cool the above molten glass to 1200°C and flow it into a tin bath for forming, flatten and po...
Embodiment 2
[0046] A. First, the raw materials are accurately weighed according to the material recipe, and the batches that are forced to mix evenly are put into the feeding pool at regular intervals and quantitatively. The ingredients are as follows: 52 parts of quartz sand, 15.5 parts of alumina, 26.3 parts of sodium carbonate, 4.6 parts of potassium nitrate, 13.3 parts of magnesium oxide, and 4.45 parts of ammonium dihydrogen phosphate.
[0047] B. The batch material in the melting pool is heated to 1500°C for melting, clarified, stirred and homogenized to obtain a high-quality defect-free molten glass.
[0048] C. Float forming: Cool the above molten glass to 1200°C and flow it into a tin bath for forming, flatten and polish at 1130°C, and pull down to thin at 950°C.
[0049] D. When the glass ribbon is cooled to 650°C, enter the annealing kiln for annealing, nucleate at 680°C for 2 hours, and crystallize at 800°C for 2 hours to obtain the original glass ceramics.
[0050] E. Soak t...
Embodiment 3
[0053] A. First, the raw materials are accurately weighed according to the material recipe, and the batches that are forced to mix evenly are put into the feeding pool at regular intervals and quantitatively. The ingredients are as follows: 48.2 parts of quartz sand, 20.6 parts of alumina, 24.5 parts of sodium carbonate, 2.3 parts of potassium nitrate, 10.6 parts of lithium carbonate, 7.5 parts of magnesium oxide, 2 parts of zirconia, 1.55 parts of ammonium dihydrogen phosphate, and 1 part of antimony oxide , rubidium oxide 1 part
[0054] B. The batch materials in the melting pool are heated to 1550°C for melting, clarified, stirred and homogenized to obtain a high-quality defect-free molten glass.
[0055] C. Float forming: Cool the above molten glass to 1225°C and flow it into a tin bath for forming, flatten and polish at 1193°C, and pull down to thin at 1010°C.
[0056] D. When the glass ribbon is cooled to 600°C, enter the annealing kiln for annealing, nucleate at 650°C ...
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