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Method for forming glass panes

A glass plate and extension direction technology, applied in the field of glass plate forming, can solve the problems that the progress of the bending process cannot be precisely controlled, and the time is long.

Active Publication Date: 2021-03-16
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this method is that the progression of the bending process cannot be precisely controlled and the process takes a relatively long time

Method used

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  • Method for forming glass panes
  • Method for forming glass panes
  • Method for forming glass panes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0127] Fig. 1A) shows possible bending lines of glass plates supporting the end of the glass plate s1 And K s2 . Fig. 1B) shows related bending moment M 1 And M 2 . Bending line K s1 Corresponding to three parabolas, and curved line K s2 Corresponds to the secondary parabola. K s1 Associated bending moment M 1 Has a parabolic ranks, for example, by line load, that is, a gravity, for example, by gravity acting on the entire surface of the glass sheet. Instead, with K s2 The related bending moment has a process of increased linearity towards the center. This example is achieved by the force of the center. This means that the glass sheet supported on its edge and only gravity acts on it, under these conditions, will settle according to the three parabolas. If a different shape is required, it can be ensured by the corresponding mold as in the prior art, however, some areas of the glass plate will be set to the mold before the other area of ​​the glass sheet, and it is disadvantageous...

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Abstract

The invention relates to a method for forming a glass pane (1), in which the glass pane (1) is firstly heated and then bent until it reaches a form corresponding to a predefined target contour (ks), wherein external forces are applied to the glass pane (1) in order to bend the glass pane (1). A change over time to a local curvature of the glass pane (1) is controlled such that the surface of the glass pane (1) reaches the target contour simultaneously at all points of the surface that do not remain unmoved in that a temperature and thus a viscosity of the glass pane (1) is not adjusted constantly during the bending in a location-dependent manner and / or forces introduced by holders (6) and / or compressive forces introduced by one or more pressure strips (3) are adjusted appropriately for this purpose. The application also relates to multiple panes produced by the method.

Description

Technical field [0001] The present invention relates to a method for forming a glass plate (Glass PANe). The present invention relates to a method for producing a system including a curved glass sheet. Background technique [0002] Usually large-sized curved glass sheets need to meet high quality requirements in, such as buildings, vehicle manufacturing, or industrial applications (such as solar thermal power plants). In order to meet the aesthetics or functional requirements, the contour is curved, and the precise predefined bending curve and smooth, there is usually a surface of the corrugenation-free. [0003] Document FR 412 231 shows a mold for curved glass, wherein the contour is predetermined by tube. The glass plate is heated and the weight is consistent with the mold due to its inherent weight. [0004] The disadvantage of this method is that the progress of the bending process cannot be accurately controlled, and the process requires a relatively long time. In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/023C03B23/025
CPCC03B23/0258C03B23/0256C03B23/0235B32B17/10036B32B17/06B32B17/10128B32B2315/08B32B2419/00B32B2605/006B32B2605/08B32B17/10871B32B17/10889
Inventor 马蒂亚斯·格雷梅尔斯巴赫托比亚斯·里斯特彼得·甘布施雷纳·库伯勒阿德里安·巴布
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV