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Method for locally shaping of glass sheet and glass sheet or glass ceramic sheet having locally deformed zone

A technology of glass ceramics and partial deformation, which is applied in glass forming, glass rolling, glass reshaping, etc. It can solve the problems of costly and time-consuming operation steps, and achieve the effect of saving energy and processing steps

Inactive Publication Date: 2005-03-30
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This natively functions very efficiently and also implements cheap gravity-based methods with one drawback: only a very low degree of deformation can be achieved without additional forced deformation
The additional operational step of forced deformation is costly and time consuming

Method used

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  • Method for locally shaping of glass sheet and glass sheet or glass ceramic sheet having locally deformed zone
  • Method for locally shaping of glass sheet and glass sheet or glass ceramic sheet having locally deformed zone
  • Method for locally shaping of glass sheet and glass sheet or glass ceramic sheet having locally deformed zone

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Embodiment Construction

[0047] According to the invention, it is possible in particular to provide a glass-ceramic plate for the cooking surface, which is designed upwards or downwards in the region of the cooktop level and which can be produced cost-effectively with a high degree of flexibility by combining the starting material, prefabricated glass blanks Thinning in the area to be deformed. This purposefully placed thinning of the material facilitates the deformation process by simple gravitational sinking during the thermal ceramization process.

[0048] figure 1 An embodiment of the variant on a cooking panel is shown, where the rear end area is raised. Part A of the figure shows a prefabricated glass blank 1 with the cooking zone 2 shown. On the glass blank 1, a material thinning zone 3 is arranged in the rear end region 1b parallel to the rear edge 1a, preferably during the rolling process of the glass blank. In case the total thickness of the sheet is in the range of 4-6 mm, the remaining ...

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PUM

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Abstract

Disclosed are various deforming methods for carrying out partial deformation of glass plate which can be selectively changed to glass ceramic plate, wherein deformation caused by gravity is also provided. In order to execute deformation with high deformation ratio by the method, a thinning of the material corresponding at the contour is realized before the partial deformation in predefined zone of the glass plate (1). The thinning of the material is beneficial to the deformation in great extent. The glass plate or transformed glass ceramic plate produced by the method of the invention can be used as cooling panel or fireplace glass window.

Description

technical field [0001] The invention relates to a method for the local deformation of a glass pane, whereby the local deformation of the glass pane in the predetermined region is effected by a gravitational sinking of the at least partially reheated glass pane. [0002] The invention also relates to glass / glass-ceramic panes with locally deformed regions. Background technique [0003] Glass plates / glass-ceramic plates with local deformation areas are gaining more and more importance on the market, especially in glass-ceramic products in the household appliance sector, typically in cooking panels in hob areas or in living room fireplaces panel aspect. But there are other applications too, such as glass baking dishes. [0004] Cooking surfaces made of glass ceramic or special glass have proven themselves on the market for many years. Especially the use of glass-ceramic cooking panels for electrically heated cooking areas as well as for cooking areas with gas burners, both w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B13/01C03B13/14C03B23/025C03B32/02
CPCC03B23/0252C03B13/01C03B13/14C03B23/0258
Inventor M·塔普兰H·谢德勒I·科斯巴斯F·－G·施勒德W·施密德鲍尔T·加贝尔曼D·舍尼
Owner SCHOTT AG
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