Method for producing plate glass, method for producing wedge glass, and method for producing laminated glass

• Main Authors: KAWAMURA TAKUYA, ASANUMA KEISUKE, NAKAJIMA TATSURO, NODA ATSUSHI, NAKAHARA YO
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The molten metal bath is provided with an upstream wall, a downstream wall, and two side walls. Each of the two side walls includes a shoulder portion that reduces the width of the molten metal bath in the traveling direction of the glass ribbon. The ratio W/N of the distance W between the two side walls in a region upstream of the shoulder of the molten metal bath and the distance N between the two side walls in a region downstream of the shoulder of the molten metal bath is greater than 1.0 and 1.6 or less. By heating both widthwise end portions in an upstream region of the molten metal bath to be stronger than the widthwise center portion of the glass ribbon, a sheet glass having a widthwise center portion thicker than both end portions is manufactured. 熔融金属浴具备上游壁、下游壁和2个侧壁。2个侧壁分别在玻璃带的行进方向上包含使熔融金属浴宽度减小的肩部。熔融金属浴的比肩部更上游区域中的2个侧壁间的距离W与熔融金属浴的比肩部更下游区域中的2个侧壁间的距离N之比W/N大于1.0且在1.6以下。通过在熔融金属浴的上游区域中将宽度方向两端部加热得比玻璃带的宽度方向中央部更强，制造宽度方向中央部比两端部厚的板玻璃。