Float process for producing a float glass pane and a float glass pane

A float process and glass plate technology, applied in the field of float glass plates, can solve the problems of different chemistry and so on

Inactive Publication Date: 2015-09-30
SCHOTT AG
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the two surfaces of the glass plate are chemically significantly different fro

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Float process for producing a float glass pane and a float glass pane
  • Float process for producing a float glass pane and a float glass pane
  • Float process for producing a float glass pane and a float glass pane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0085] exist figure 1A cross-section of the relevant part of a float glass plant suitable for carrying out the method according to the invention is schematically shown in . The stretching zone (9) comprises in the stretching direction (8) the end of the float kiln (10) with the molten metal (13), the tin bath box (11) and the annealing kiln (12), in which the tin bath The glass ribbon (14) in the box (11) having the tin bath side (15) and the upper side (16) after leaving the molten metal (13) runs on a first transport roll (17) in which the lehr (12 ) the glass ribbon (14) is cooled to a low stress state. The lehr (12) has sections (12a, 12b) arranged in tandem in which the glass ribbon (14) has been subjected to a heat output P from above by means of upper electric heating elements (31a, 31b) n,above , and is subjected to heat output P from below by the lower electric heating elements (32a, 32b) n,below . The electric heating elements ( 31 , 32 ) are in this case of con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a float glass pane, and a float process for producing a float glass pane in a drawing section with a float bath and a cooling furnace, whereby a molten glass continuously onto a molten metal, and in a pulling direction to form a glass ribbon having a thickness D with one of the metal melt facing tin side and one of the metal melt facing away from the upper side is pulled out, wherein the glass ribbon along the float bath is transported further cooled from the molten metal is lifted and through the cooling furnace, wherein the glass ribbon has two edge portions along its longitudinal edges which, starting from the longitudinal edges in the direction of the mid-band extending and between which a payload is placed wherein the glass ribbon at the top; a temperature Ttop and on the tin side has a temperature Tbottom, wherein the bottom temperature in the lehr Tboden and the ceiling temperature in the lehr is TDecke, characterized in that in a portion A of the pull line, in which the temperature of the upper side Ttop of Tg + 20 K to Tg - 20 K falls, at any point x within the useful range of the glass ribbon the temperature of the upper side Ttop is greater than the temperature of the tin bath Tbottom.

Description

technical field [0001] The present invention relates to a float process for the manufacture of float glass sheets, and to a float glass sheet. Background technique [0002] On the basis of their high mechanical strength and low sheet thickness of less than 1 mm, chemically hardened aluminosilicate glass sheets have been used in recent years as glass cover sheets for displays of mobile terminal devices such as in particular notebook computers and smartphones. In addition to other stretching processes, the float process known to the person skilled in the art comes into consideration in particular for the production of aluminosilicate glass panes. But when using the float process, after chemical tempering, aluminosilicate glass sheets can be observed to bow or bow, also known to those skilled in the art as warping. This warping is attributable to the fact that the float process is an asymmetric stretching process and that the side of the float glass sheet known as the tin bath...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C03B18/02
CPCC03B18/22C03B25/08C03C3/085C03C3/093
Inventor 安德烈斯·兰格斯多弗阿明·沃格格哈德·劳特恩施拉格约亨·奥克珀鲁迪格·迪特里希沃尔夫冈·瓦拉特彼得·托马斯
Owner SCHOTT AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap