In float glass manufacturing, the tin bath plays a critical role in ensuring the flatness and uniformity of the glass sheet. A stable and evenly distributed temperature across the width of the tin bath is essential for controlling the viscosity of the molten glass and preventing deformation. Even a slight horizontal temperature difference can cause visible quality defects in the finished product.
ARMxy Main Controller – central control unit for data processing and control logic execution
Y-AI Board – acquires data from 40 thermocouple points across the tin bath
Y-AO Board – regulates the heating power to achieve temperature balance
High-Precision Temperature Acquisition
The Y-AI board, equipped with thermocouple amplifiers, collects real-time temperature data from K-type sensors (range: 0–800 °C) installed across the tin bath. This allows for a complete thermal profile of the horizontal cross-section.
Fuzzy Control Algorithm
The ARMxy controller runs an advanced fuzzy control algorithm to maintain horizontal temperature differences within ±1 °C. This precise balance minimizes thermal stress and ensures consistent glass thickness.
Proportional Heating Adjustment
The Y-AO board outputs 0–10 V control signals to solid-state relays, adjusting the conduction angle of each heating element according to real-time temperature feedback.
Remote Expert Analysis – Temperature field data can be securely accessed by technical experts for diagnosis and optimization.
Built-in Thermocouple Break Detection – The Y-series AI board can instantly detect sensor failures, ensuring reliability.
Rapid Logic Implementation – OpenPLC allows fast deployment and modification of the control logic to meet production changes.
By integrating the ARMxy industrial controller, Y-series I/O boards, and OpenPLC software, the tin bath temperature equalization system achieves both high precision and operational flexibility. This solution not only improves product quality but also enables remote maintenance and process optimization, making it a valuable upgrade for modern glass production lines.
