High-strength thick glass substrate and preparation method thereof
A thick glass and high-strength technology, applied in the field of glass manufacturing, can solve problems such as increased processing difficulty, increased number of bubbles, and faster hardening speed, so as to improve bending strength, mechanical properties, and good bending strength Effect
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Embodiment 1
[0030] A kind of high-strength thick glass substrate of the present invention, this high-strength thick glass substrate is made up of the raw material of following percentage by weight: SiO 2 : 63%; Al 2 o 3 : 6%; B 2 o 3 : 2%; CaO: 8%; MgO: 4%; Na 2 O: 14%; K 2 O: 2%; Sb 2 o 3 :1%.
[0031] The preparation method of this high-strength thick glass substrate is as follows:
[0032] (1) First heat the empty crucible, when the crucible is heated to 1350°C-1450°C, add the mixture of the above-mentioned raw materials into the crucible in 5 batches, control the feeding temperature at 1350°C-1450°C, and feed in batches before and after The interval time is 30 minutes, and the total feeding time is 2 hours. After the feeding is completed, the temperature is raised to 1590 ° C ~ 1600 ° C to melt the materials to obtain glass liquid;
[0033](2) Carry out the first heat preservation of the molten glass obtained in step (1), the temperature of the first heat preservation is 1590...
Embodiment 2
[0036] A kind of high-strength thick glass substrate of the present invention, this high-strength thick glass substrate is made up of the raw material of following percentage by weight: SiO 2 : 60%; Al 2 o 3 : 7%; B 2 o 3 : 4%; CaO: 8%; MgO: 4%; Na 2 O: 14%; K 2 O: 2%; Sb 2 o 3 :1%.
[0037] The preparation method of this high-strength thick glass substrate is as follows:
[0038] (1) First heat the empty crucible, when the crucible is heated to 1350°C-1450°C, add the mixture of the above-mentioned raw materials into the crucible in 5 batches, control the feeding temperature at 1350°C-1450°C, and feed in batches before and after The interval time is 35 minutes, and the total feeding time is 2.3 hours. After the feeding is completed, the temperature is raised to 1590 ° C ~ 1600 ° C to melt the materials to obtain molten glass;
[0039] (2) Carry out the first heat preservation of the molten glass obtained in step (1), the temperature of the first heat preservation is 1...
Embodiment 3
[0042] A kind of high-strength thick glass substrate of the present invention, this high-strength thick glass substrate is made up of the raw material of following percentage by weight: SiO 2 : 57%; Al 2 o 3 : 8%; B 2 o 3 : 6%; CaO: 8%; MgO: 4%; Na 2 O: 14%; K 2 O: 2%; Sb 2 o 3 :1%.
[0043] The preparation method of this high-strength thick glass substrate is as follows:
[0044] (1) First heat the empty crucible, when the crucible is heated to 1350°C-1450°C, add the mixture of the above-mentioned raw materials into the crucible in 5 batches, control the feeding temperature at 1350°C-1450°C, and feed in batches before and after The interval time is 30 minutes, and the total feeding time is 2 hours. After the feeding is completed, the temperature is raised to 1590 ° C ~ 1600 ° C to melt the materials to obtain glass liquid;
[0045] (2) Carry out the first heat preservation of the molten glass obtained in step (1), the temperature of the first heat preservation is 159...
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