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Main innovations of Tianjin Tianzhong Zhongzhi Technology Engineering Co., Ltd ‘s extra-large section steel CMA universal rolling mill
DATE：3/26/2020 HIT：680 SOURCE： AUTHOR：
(1) The first semi-continuous rolling process for CMA universal rolling mills for extra large steels. It solves the difficult problem that traditional technology is difficult to achieve complex cross-section rolling and cannot be continuously deformed, significantly reduces the rolling temperature drop, and achieves energy saving, high efficiency and stable rolling.
(2) Developed the world's largest extra large steel universal rolling mill and its key structures. The operating side can move the frame and the prestressed ring structure, the middle automatic roll change and the full hydraulic servo control system to ensure the stability of rolling and improve the efficiency and product accuracy.
(3) Developed a variety of large-scale, high-precision universal rolling mills in the world that can roll 1200mm H-section steel, 600mm-900mm extra-large steel sheet piles, Z-shaped steel and asymmetrical profiled steel, filling China's production of large The blank of shaped steel and shaped steel has achieved the breakthrough in product accuracy, specifications and varieties rolled by international large-scale steel rolling mills.
(4) Developed micro tension control technology based on torque memory method and hydraulic servo roll gap control technology. It ensures constant tension between stands during the rolling process and online adaptive adjustment of the roll gap.
(5) Developed a pilot line of a large-scale steel CMA universal experimental rolling mill, which has a good demonstration effect. Carry out industry-university-research cooperation with relevant universities. This pilot line provides platform support for key technology research and development of extra large steel CMA rolling mills.