Method for mfg.wide rhombus glass sheet/glass ceramic sheet and glass sheet/glass ceramic sheet
A technology of glass ceramics and glass plates, applied in glass manufacturing equipment, glass forming, glass rolling, etc.
Inactive Publication Date: 2007-10-24
SCHOTT AG
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- Description
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- Application Information
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Problems solved by technology
[0006] But the market desires wider facets, which in existing manufacturing methods necessitates an increase in the overall thickness of the plate, since a certain residual thickness of the glass-ceramic plate must be maintained depending on the required strength
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[0021] FIG. 1 shows a rolled glass or glass-ceramic plate 1 with rolled raised structures 2 in the rolling direction, for example in different shapes 2a, 2b, 2c or 2a', 2b', 2c', With two different distances from the edge of the plate in each of Figures A-F. Such glass or glass-ceramic panels are typically used as cooktops in the cooktop area. The plate thickness is typically 4 mm. These sheets are manufactured in a known manner and typically consist of a glass ribbon that is continuously rolled and then split into individual sheets. In principle, they can also be pressed individually. In this respect, the glass pane is either the end product or a glass gob, the so-called starting glass for the conventional way of ceramicizing the glass-ceramic pane.
[0022] The raised structure is formed in a manner known per se through stages corresponding to, for example, almost right-angled, oblique or concave-convex transitions in rolling, as described, for example, in DE 199 06 911 C...
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Abstract
The present invention relates to a method for producing glass or glass ceramic plate with wide facings, including a step of forming glass plate from glass melt liquid, and a step of selectively making the facing glass ceramic plate on the edge of the glass plate, or the step of executing the subsequent grinding on the edge of the glass ceramic plate in advance. The method is characterized in that, in the first step, material raising part (2) is formed in at least one area of the plate edge when forming the glass plate (1), in the second step, under the condition of using the material raising part (2) is formed on the relative edge, the wide facing (3) which has a width in a range of 30mm to 70mm and has a side surface (3a) raising relative to the inner edge of the facing on the plate is grinded. The invention also relates to a glass plate / glass ceramic plate which has at least one wide facing grind surface (3) on the edge of the plate, which has the width from 30mm to 70mm, and has a side surface on the upper edge inclining inward to the plate surface.
Description
technical field [0001] The invention relates to a method for producing wide-faceted glass or glass-ceramic plates, which comprises a forming step of forming a glass plate from a glass melt and performing facets on the edges of the glass plate or on the edges of a previously ceramized glass-ceramic plate subsequent grinding steps. The invention also relates to the facetted glass or glass-ceramic pane itself. Background technique [0002] Glass plates or glass-ceramic plates are now a permanent part of the cooker zone, wherein glass-ceramic plates are mostly used as cooker surfaces in the case of electrically heated cooker zones, and glass plates are often used as cooker surfaces in the case of gas-heated cooker zones. [0003] Glass cooktops / glass-ceramic cooktops as part of a kitchen installation like the kitchen furniture itself are subject to prevailing design trends for aesthetic purposes. In the meantime, the market demands glass-ceramic cooktops with special edge stru...
Claims
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IPC IPC(8): C03B32/00B24B7/24F24C15/00F24C15/10C03B23/02C03B13/01C03C17/02C03C19/00
CPCC03B13/01C03C19/00C03C17/02
Inventor M·米勒W·施密德鲍尔H·-J·维特P·格鲁尔C·博姆R·杜贝克
Owner SCHOTT AG