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Method for tempering glass sheets

A glass plate and glass technology, applied in the tempering of glass, glass manufacturing equipment, manufacturing tools, etc., can solve the problems that the rear edge of the glass has not been initially cooled, and the kink problem of the rear end edge has not been disclosed.

Active Publication Date: 2022-04-19
GLASTON FINLAND
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0021] The rear edge of the glass does not get the initial cooling at all and the rear end edge kink issue is not disclosed

Method used

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  • Method for tempering glass sheets
  • Method for tempering glass sheets
  • Method for tempering glass sheets

Examples

Experimental program
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Effect test

Embodiment Construction

[0038] The apparatus consists of furnace 1 and quenching unit 2, which are in accordance with Figure 4 The order of the glass plate is continuous in the direction of travel. Furnace 1 is usually provided with a horizontal roller 5 or an air support table and its conveying element. These make up the conveyor tracks for the glass panels. During the heating cycle, the glass plate G to be heated is continuously driven in one direction or back and forth in the furnace at a constant speed. After heating to the tempering temperature, the glass plate enters the quenching unit 2 from furnace 1 at a transfer rate typically higher than the velocity of the glass in furnace 1. Typically, the transfer speed is 200-800mm / s.

[0039] as Figure 2 As shown, the quenching unit 2 is typically provided with a horizontal roller 5 and a cooling air seal 3 located above and below the roller. When furnace 1 is an air support surface, the roller 5 or air support table and its delivery element in the quench...

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PUM

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Abstract

Method for thermal strengthening or tempering glass sheets of a glass load comprising several glass sheets, wherein the glass sheets are heated to the tempering temperature in a furnace and the glass load is transferred from the furnace to the tempering unit at a conveying speed (W) , where the actual quenching takes place by spraying cooling air on both surfaces of the glass sheet. Through the initial spraying unit located between the furnace and the quenching unit and divided into several initial spraying areas transverse to the direction of glass movement, the compressed air jets are aimed at the front and rear edge surfaces of the glass sheet and aimed at their desired Straighten the normal direction of the ends to reduce kinks at the end edges.

Description

Technical field [0001] The present invention relates to a method for tempering a glass plate, wherein the glass plate is heated to a tempering temperature, and quenched by spraying cooling air into the glass plate. Background [0002] Tempering furnaces for glass plates are generally known and have been put into use, where the glass plates move in a single direction or on top of a rotating ceramic roller rotating back and forth, and the glass plates enter the quenching unit downstream of the tempering furnace along the roller table at the tempering temperature, where air jet is used for quenching. For example, a furnace equipped with a roller table is called a roller bottom furnace in the field of technology. Usually the furnace temperature is about 700 °C, and the temperature of the air used for cooling is usually about the same as the temperature outside or inside the plant. Cooling air is supplied by a fan or compressor. In furnaces and quenching units based on air support te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B27/04C03B27/044
CPCC03B27/0404C03B27/0413C03B27/0417C03B27/044C03B27/012
Inventor P·吕蒂凯宁J·韦赫马斯
Owner GLASTON FINLAND
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