Title:
A manufacturing method of a tempered glass board
Document Type and Number:
Japanese Patent JP6032468
Kind Code:
B2
Abstract:
A method of manufacturing a tempered glass substrate includes: melting glass raw materials blended so as to have a glass composition including, in terms of mass %, 40 to 71% of SiO2, 3 to 23% of Al2O3, 0 to 3.5% of Li2O, 7 to 20% of Na2O, and 0 to 15% of K2O; forming the resultant molten glass into a sheet shape; and performing ion exchange treatment in a KNO3 molten salt, the KNO3 molten salt having a controlled concentration of Na ions, to form a compressive stress layer in a surface of the glass.
Inventors:
Takashi Murata
Keiko Tojo
Keiko Tojo
Application Number:
JP2012153317A
Publication Date:
November 30, 2016
Filing Date:
July 09, 2012
Export Citation:
Assignee:
Nippon Electric Glass Co., Ltd.
International Classes:
C03C21/00; C03C3/083; G09F9/00
Foreign References:
| US20120171497 | ||||
| WO2011145661A1 |