Device for manufacturing tempered glass using chemical strengthening and manufacturing method therefor

Abstract

The present invention relates to a device for manufacturing tempered glass using chemical strengthening and a manufacturing method therefor. The present invention manufactures tempered glass by raising the temperature of plate glass and preheating the plate glass at first and second preheating units step by step; substituting with potassium ions within a potassium nitrate solution of a chemical strengthening unit; cooling the plate glass through first and second slow cooling processes at first and second slow cooling units; and cleaning the plate glass by fine bubbles while securing stability of the glass at a cleaning unit. Due to this feature, the present invention can maximally shorten the process time for manufacturing tempered glass to considerably enhance yield and improve defect rate, and further can manufacture all types of plate glass such as thin plate glass and thick plate glass into chemically tempered glass regardless of the standard of plate glass.

Description

technical field [0001] The present invention relates to a tempered glass manufacturing device and manufacturing method utilizing chemical tempering, more specifically, to a tempered glass manufacturing device and manufacturing method utilizing chemical tempering, characterized in that the first preheating part and the second preheating part Heat up the temperature of the flat glass in stages to preheat the flat glass, replace it with potassium ions in the potassium nitrate solution in the chemical tempering part, and then go through the first slow cooling process in the first slow cooling part and the second slow cooling part Cooling with the second slow cooling process, cleaning with fine air bubbles in the state where the cleaning part ensures the stability of the glass, thereby adding compressive stress to the surface of the glass to make tempered glass, thereby shortening the manufacturing process to the maximum It takes time to greatly increase the yield, and at the same ...

AI Technical Summary

Problems solved by technology

[0020] However, according to the prior art, the temperature of the flat glass is raised from normal temperature to about 300-400°C in stages in a preheating furnace to realize preheating. The temperature range between the initial preheating temperature and the final preheating temperature is too large when the flat glass is put in, so there is a problem of preheating after the preheated flat glass is transported to the main furnace until the subsequent flat glass is supplied to the preheating furnace. The problem of extended standby time required

[0021] That is, in the preparatory steps for preheating the subsequent flat glass, it is necessary to lower the temperature inside the preheating furnace from the final preheating temperature (about 400°C) to the initial preheating temperature (normal temperature to about 100°C). Excessively large, therefore, will inevitably lead to prolonged standby time

[0022] Of course, when the tempered glass is continuously produced, the standby process time of the preheating furnace is prolonged, which naturally leads to a decrease in the turnover rate of the preheating furnace, which results in a decrease in overall production productivity.

[0023] Moreover, the disclosed existing tempered glass manufacturing device and manufacturing method have the problems of long process time, low yield, and high defect rate due to glass breakage, etc.

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