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Molten glass supply device, glass formed product, and method of producing the glass formed product

A technology of molten glass and supply equipment, which is applied in glass production, glass furnace equipment, glass manufacturing equipment, etc., can solve the problems such as the inability to provide countermeasures for furnace heat radiation, and achieve the effect of improving efficiency

Active Publication Date: 2004-09-01
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Based on the above reasons, conventional molten glass supply devices for high-viscosity glass cannot provide effective countermeasures to solve the problems of heat radiation and external corrosive substances in the furnace.

Method used

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  • Molten glass supply device, glass formed product, and method of producing the glass formed product
  • Molten glass supply device, glass formed product, and method of producing the glass formed product
  • Molten glass supply device, glass formed product, and method of producing the glass formed product

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Embodiment Construction

[0097] The following is an embodiment of the present invention, together with corresponding drawings. figure 1 A schematic cross-sectional view showing a partial structure of a molten glass supply device according to an embodiment of the present invention. figure 2 A schematic diagram showing a horizontal sectional plan of a molten glass supply device. image 3 A schematic diagram showing a vertical sectional plan of a molten glass supply device. Please note that in the following description, the direction between the upstream and downstream of the molten glass supply device is defined as the front-to-back direction (back-and-forth direction), and the direction perpendicular to the front-to-back direction is defined as right-to-left Direction (right-to-left direction).

[0098] Such as figure 1 and figure 2 As shown, it depicts a molten glass supply device according to an embodiment of the present invention. The molten glass supply device 1 generally includes a rectan...

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Abstract

A molten glass supply device is provided, which can solve unavoidable problems for high viscosity characteristics in connection with the conventional molten glass supply device for high viscosity glass. Such problems include improperly high heating cost caused by excessive heat radiation in a melting furnace, reduction in the grade of products deriving from an excess amount of an erosion foreign material and reduction in the product yield. High viscosity molten glass having a property in which a temperature at which the molten glass exhibits a viscosity of 1000 poise is 1350 DEG C. or higher is supplied to a forming device through a melting furnace, a distribution portion in communication with the outlet of the melting furnace, and a plurality of branch paths branching from the distribution portion. In the branch paths, distribution resistance providing portions that provide distribution resistance to molten glass passed through the branch paths are provided. The supply pressure of the molten glass is equalized when molten glass is distributed from the distribution portion to the branch paths. The distribution portion has a shallower bottom than the melting furnace.

Description

technical field [0001] The present invention relates to a supply technology of molten glass, and in particular relates to an improved molten glass supply device for producing high-viscosity sheet glass for liquid crystal display from a melting furnace (melting furnace) to forming device (forming device), and improve the technology of producing glass products to supply molten glass for liquid crystal display. Background technique [0002] In recent years, the demand for glass substrates has increased rapidly, which can be applied to flat panel displays such as liquid crystal displays (LCDs), electroluminescent displays (electroluminescent displays, ELDs), or used in various Cover glass for image sensors such as charge-coupled devices (CCD), life-size magnification, solid-state contact image sensor (CIS), and COMS image sensors, as well as for hard disks (hard disk) and filter (filter) glass substrate. [0003] The glass used above can be called high viscosity glass, while t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/04C03B5/182C03B5/20C03B7/02C03B7/07
CPCC03B5/20C03B7/07C03B7/02C03B5/182Y02P40/57E05C3/10E05D15/0665E05Y2201/688E05Y2900/148
Inventor 笘本雅博青木重明高谷辰弥
Owner NIPPON ELECTRIC GLASS CO LTD
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