A design optimization method for overflow brick groove bottom curve

Abstract

The invention belongs to the field of glass substrate manufacturing, and discloses a method for optimizing the curve design of the overflow brick groove bottom, which includes the following steps: S1 obtains the standard lead-out amount of the overflow brick according to the design parameters of the overflow brick; According to the standard lead-out amount, the initial overflow brick groove bottom curve is obtained; S3 corrects the initial overflow brick groove bottom curve according to the length of the overflow brick diverter block, and obtains the overflow brick groove bottom curve; S4 according to the overflow brick groove bottom curve and the design parameters of the overflow brick, the thickness range of the formed glass substrate is obtained through overflow simulation; S5 When the thickness range of the formed glass substrate ≤ the preset threshold, the overflow brick groove bottom curve and the design parameters of the overflow brick are used Perform overflow brick processing; when the thickness difference of the formed glass substrate is greater than the preset threshold, adjust the design parameters of the overflow brick and repeat S1-S4. It effectively solves the problem of fluctuations in the thickness of the glass substrate molding, and increases the production margin from the design, so that the thickness of the glass substrate molding can meet the demand.

Description

technical field [0001] The invention belongs to the field of glass substrate manufacturing and relates to a method for optimizing the curve design of overflow brick groove bottoms. Background technique [0002] The glass substrates used in the production of flat panel displays such as TFT-LCD (Thin Film Transistor Display) and PDP (Plasma Display Panel) are manufactured by overflow down-drawing. In the forming process, molten glass melted by a glass melting furnace is supplied to Melt overflow down-draw molding device to manufacture. [0003] Display manufacturing requires larger and larger glass substrates to improve production efficiency and reduce costs, but the production of larger glass substrates is more difficult, and the quality control of glass substrates is more complicated. The overflow brick is one of the core components of the glass substrate manufacturing and molding device. Among them, the control of the thickness uniformity of the glass substrate is one of t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantage that the thickness distribution of the glass substrate produced by the overflow down-draw method in the above-mentioned prior art often does not meet the requirements, and to provide a method for optimizing the design of the groove bottom curve of the overflow brick

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