Float glass product quality optimization method and system, medium and product

By combining closed-loop control of temperature control and mechanical stretching in float glass production, thickness deviations are corrected in real time, solving the response lag problem caused by the thermal inertia of the tin bath, and achieving high-precision thickness control and steady-state repair.

CN121974548APending Publication Date: 2026-05-05HEILONG JIANG JIAXING GLASS SHAREHOLDING CO LTD
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Patent Information

Application Number
CN202512021950.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

During the float glass forming process, the large thermal inertia of the tin bath causes a lag in thickness adjustment response, making it impossible to achieve high-precision steady-state quality control.

Method used

A closed-loop control strategy based on temperature control and mechanical stretching is adopted. By combining the mechanical stretching of the edge-pulling machine component and the temperature regulation of the heating component, the thickness distribution curve of the glass strip is acquired in real time, abnormal areas are accurately located, and mechanical stretching and temperature regulation commands are generated to quickly correct thickness deviations.

Benefits of technology

It achieves a seamless connection between millisecond-level rapid correction of glass strip thickness anomalies and long-term steady-state control, significantly improving the control accuracy and robustness of molding quality, and reducing thickness parameter oscillations and scrap rate caused by temperature control lag.

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Abstract

The invention provides a float glass product quality optimization method and system, a medium and a product, and relates to the technical field of automatic control. Comprising the following steps: comparing a real-time transverse thickness distribution curve with a standard datum line to screen abnormal areas; tracing and positioning a target thermal control partition and a component according to the pulling speed; generating a mechanical stretching and temperature adjusting instruction based on the thickness out-of-tolerance quantity; when the temperature of the tin liquid does not reach the standard, mechanical stretching is executed, and temperature is increased synchronously; in the process, the difference value between the stretching speed and the glass flow speed is dynamically adjusted according to the temperature closeness degree until the temperature reaches the standard, and synchronous operation of the edge roller is recovered. According to the process, a non-response dead zone in a traditional single temperature control mode is eliminated, a long-distance waste strip generated by waiting for temperature rise is avoided, and the extremely short-term response speed and the long-term steady-state control precision in the float glass forming process are improved.
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