Design of a high-precision twin-roll strip caster

作     者：YE Changhong QIAO Jianji WANG Chengquan 

作者机构：Research InstituteBaoshan Iron & Steel Co.Ltd.Shanghai 201999China Shanghai Engineering Research Center of Strip Casting and RollingShanghai 201999China Baosteel Engineering & Technology Group Co.Ltd.Shanghai 201999China 

出 版 物：《Baosteel Technical Research》 (宝钢技术研究（英文版）)

年 卷 期：2019年第13卷第3期

页      面：8-13页

学科分类：0806[工学-冶金工程] 08[工学] 

主　　题：strip thickness deviation prestressed twin-roll caster balancing cylinder hydraulic system dynamic simulation 

摘      要：During strip casting,the thickness deviation of casting strip directly affects the quality of the hot-rolled sheet because the casting strip needs to be rolled only *** accurately control the gap between casting rolls and reduce the thickness deviation of the casting strip,a conceptual design of a prestressed twin-roll caster is proposed herein;this caster involves the setting of a constant pressure balancing cylinder between the chocks of two casting *** balancing cylinder hydraulic system adopts a three-way servo valve that controls the hydraulic *** parameters of the hydraulic power components are determined using the principle of optimal power matching,and the hydraulic system model of the balancing cylinder is thus *** dynamic analysis and simulation of the hydraulic system are performed using finite element model to obtain relevant evaluation ***,the hydraulic system is corrected using proportional-integral-derivative (PID) correction to achieve a well-controlled ***,the engineering requirements of the strip casting process can be met.