METHOD FOR IMPACT-TESTING CHEMICALLY STRENGTHENED GLASS, METHOD FOR REPRODUCING CRACKS IN CHEMICALLY STRENGHTNED GLASS, AND METHOD FOR MANUFACTURING CHEMICALLY STRENGTHENED GLASS
First Claim
1. A method for impact-testing a chemically strengthened glass having formed on a surface thereof a compressive stress layer,the method comprising disposing the chemically strengthened glass on a base, and dropping an impacting object from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of the compressive stress layer.
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Accused Products
Abstract
A chemically strengthened glass is disposed on a base, and an impacting object is dropped from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of a compressive stress layer.
34 Citations
15 Claims
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1. A method for impact-testing a chemically strengthened glass having formed on a surface thereof a compressive stress layer,
the method comprising disposing the chemically strengthened glass on a base, and dropping an impacting object from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of the compressive stress layer.
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5. A method for reproducing a crack in a chemically strengthened glass having formed on a surface thereof a compressive stress layer,
the method comprising giving an impact on the chemically strengthened glass to thereby make a flaw having a depth larger than the compressive stress layer.
Specification