Chemical strengthening method, chemical strengthening apparatus, and chemically strengthened glass
A technology for strengthening glass and glass, which is applied in the field of chemical strengthening method, chemical strengthening glass, and chemical strengthening device, and can solve the problems of increased production cost, limited adjustment ability, excessive polishing waste liquid, etc.
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[0050] Example 1
[0051] Strengthening process:
[0052] (1) Preheat to 360°C for 1 hour and keep for 15 minutes;
[0053] (2) Perform a salt bath at 420°C for 5h; after the salt bath is over, lift up the original glass to drop salt for 12 minutes;
[0054] (3) Annealing and cooling from 360°C to 150°C within 1.5h, no electric field is applied during the annealing process.
[0055] Test results:
[0056] Air surface: CS 850MPa DOL 43.5μm
[0057] Tin level: CS 852MPa DOL 42.7μm
[0058] Warpage: 0.22mm.
Example Embodiment
[0059] Example 2
[0060] Strengthening process:
[0061] (1) Preheat to 360°C for 1 hour and keep for 15 minutes;
[0062] (2) Perform a salt bath at 420°C for 5h; after the salt bath is over, lift up the original glass to drop salt for 12 minutes;
[0063] (3) Anneal and cool from 360°C to 150°C within 1.5h, and apply an electric field during the annealing process; the size of the electric field is 200V / cm, the action temperature is 360°C, and the action time is 30min.
[0064] Test results:
[0065] Air surface: CS 820MPa DOL 43.8μm
[0066] Tin liquid level: CS 861MPa DOL 42.1μm
[0067] Warpage: 0.05mm.
Example Embodiment
[0068] Example 3
[0069] Strengthening process:
[0070] (1) Preheat to 360°C for 1 hour and keep for 15 minutes;
[0071] (2) Perform a salt bath at 420°C for 5h; after the salt bath is over, lift up the original glass to drop salt for 12 minutes;
[0072] (3) Anneal and cool from 360°C to 150°C within 1.5h, apply an electric field during the annealing process, the size of the electric field is 200V / cm, the action temperature is 320°C, and the action time is 30min.
[0073] Test results:
[0074] Air surface: CS 838MPa DOL 43.7μm
[0075] Tin level: CS 857MPa DOL 42.4μm
[0076] Warpage: 0.14mm.
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