| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for producing chemically strengthened glass which, even when a large number of glasses for chemical strengthening are immersed in a chemical strengthening solution at the same time, can reduce a fluctuation range of strengthened properties between chemically strengthened glasses as much as possible.SOLUTION: In a chemically strengthened glass production method of the present invention, after strengthening treatment is performed by immersing glasses for chemical strengthening in a strengthening solution, cooling treatment to chemically strengthened glasses taken out from the strengthening solution is started from a temperature not more than the melting point of the strengthening solution plus 30°C.SELECTED DRAWING: Figure 4 |
