Heater support structure and furnace for forming sheet glass

A support structure and heater technology, applied in electric furnace heating, heating elements, glass production, etc., can solve problems such as difficult temperature distribution and heat flow

Inactive Publication Date: 2002-03-13
ASAHI GLASS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the conventional upper heater, which is composed of a plurality of cylindrical heating elements arranged side by side, has the problem that the heat does not circulate, heat is easily transferred between each heating element, and it is difficult to form a clear temperature distribution.

Method used

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  • Heater support structure and furnace for forming sheet glass
  • Heater support structure and furnace for forming sheet glass
  • Heater support structure and furnace for forming sheet glass

Examples

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Embodiment Construction

[0014] Hereinafter, preferred embodiments of the heater support structure and the heating furnace for glass sheet bending molding according to the present invention will be described in detail with reference to the accompanying drawings.

[0015] figure 1 It is an overall configuration diagram showing an example of a blank glass bending apparatus for laminated glass to which the heater of the present invention is applied. In the example of the present invention, the blank glass bending and forming device 10 for laminated glass is a double-layer structure device, and the bottom part and the top part are connected by elevators 22 and 24 at both ends thereof. The bottom portion of the blank glass bending apparatus 10 for laminated glass constitutes a return path 10A of the bending die 20, and the upper portion constitutes a heating furnace 10B.

[0016] The heating furnace 10B is divided into five zones along the conveying direction of the glass plate, that is, heating zones No....

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Abstract

A heater support structure comprises a heater including a resistance-heating element and means for energizing the resistance-heating element; an object to which the resistance-heating element is applied; and first and second insulating holders arranged at a predetermined interval on the surface of the object to hold the edges of the resistance-heating element. The resistance-heating element, having a shape curved toward the object, is separated from the object.

Description

technical field [0001] The present invention relates to a heater supporting structure and a heating furnace for bending and forming a glass plate, and in particular to a heater supporting structure and a heating furnace for bending and forming a glass plate which are applicable to the bending and forming of blank glass for laminated glass used as an automobile windshield . Background technique [0002] Automobile windshields are made by placing glass cut to a specified size on a curved model, heating it to a temperature close to the softening point (550-650°C) in a heating furnace, and bending it by its own weight to form a specified shape. [0003] Here, the inside of the heating furnace for heating a glass plate is divided into a plurality of regions, and a heat generating body divided into a plurality of parts is installed in each region. Each part of each heating element is individually temperature-controlled to achieve a prescribed temperature distribution. The glass ...

Claims

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Application Information

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IPC IPC(8): C03B29/08H05B3/66
CPCC03B29/08H05B3/66Y02P40/57F27B19/00
Inventor 前田健治北村公男
Owner ASAHI GLASS CO LTD
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