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US 8,893,525 B2Granted
Apparatus and method for manufacturing tempered glass
AssigneeSamsung Corning Precision Materials Co., Ltd.
InventorsHoikwan Lee, Seo-Yeong Cho, Yoon Young Kwon, Kyungwook Park, Kyungmin Yoon, Jongsung Lee, Jaeyoung Choi, Gennady Kizevich
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Abstract
An apparatus for manufacturing tempered glass. A transportation unit transports a glass substrate that is intended to be tempered. An ionizer ionizes alkali oxides in the glass substrate by radiating energy onto the glass substrate. A dielectric heating unit increases the temperature of the inner portion of the glass substrate in which the alkali oxides are ionized by the ionizer.
Claims5
A method for manufacturing tempered glass, comprising:
- transporting a glass substrate through a tempering apparatus, and while being transported through the tempering apparatus:
- ionizing the glass substrate;
- dielectrically heating the glass substrate following ionizing;
- and
- cooling the glass substrate following heating,
- wherein the ionizing the glass substrate comprises ionizing alkali oxides in the glass substrate to produce non-bridging oxygen and free electrons such that the free electrons increase the high-frequency absorptivity inside the glass substrate, thereby maximizing the difference in temperature between the inner and outer portions of the glass substrate.
3 more elements
Dependencies are inferred from the claim text.