Chemically strengthened glass and method for producing chemically strengthened glass
A technology for strengthening glass and manufacturing method, applied in the field of chemical strengthening glass, can solve problems such as difficult strengthening treatment, and achieve the effect of realizing cost
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Embodiment 1
[0184] 2,568 g of potassium nitrate, 321 g of potassium carbonate, and 111 g of sodium nitrate were added to a cup made of stainless steel (SUS), and heated to 450° C. with a hooded heater to prepare a molten salt with 8 mol % of potassium carbonate and a Na concentration of 10,000 ppm by weight. . Use a stirring motor and 4 propeller blades to stir the prepared molten salt for 2 hours, so that the whole is uniformly mixed.
[0185] The aluminosilicate glass of 50 mm x 50 mm x 0.7 mm was preheated to 200° C. to 400° C., and then immersed in molten salt at 450° C. for 2 hours to perform chemical strengthening treatment. After strengthening treatment, the glass was washed twice with ion-exchanged water at 50°C to 90°C, washed with running water at room temperature, and dried at 60°C for 2 hours.
[0186] Various physical properties of the obtained glass were measured, and D1 / D3 and C1 were calculated. Table 2 shows the measurement results and calculation results.
Embodiment 2、12
[0188]402 g of potassium nitrate and 47.9 g of potassium carbonate were added to a cup made of SUS, and heated to 450° C. with a mantle heater to prepare a molten salt of 8 mol % of potassium carbonate. Use a stirring motor and 4 propeller blades to stir the prepared molten salt for 2 hours, so that the whole is evenly mixed.
[0189] Aluminosilicate glass (Example 2) or soda lime glass (Example 12) was strengthened, washed and dried in the same manner as in Example 1, and then acid-treated in the following procedure.
[0190] 1 mol / L (1M) hydrochloric acid was prepared in a beaker, and the temperature was adjusted to 40° C. using a water bath. The chemically strengthened glass was acid-treated by immersing it in prepared hydrochloric acid for 5 minutes, washed three times with ion-exchanged water, and then dried at 60° C. for 2 hours.
[0191] Various physical properties of the obtained glass were measured, and D1 / D3 was calculated. Table 2 shows the measurement results and...
Embodiment 3
[0193] The aluminosilicate glass was tempered, washed, and dried in the same manner as in Example 1, and then acid-treated in the same manner as in Example 2.
[0194] Various physical properties of the obtained glass were measured, and D1 / D3 and C1 were calculated. Table 2 shows the measurement results and calculation results.
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