Study On The Strip Tension Control Of Continuous Annealing Production Line

The construction of silicon steel line is the product structure adjustment and upgrading of Qian'an Steel Corp,and the pursuit of high-end manufacturing,to achieve the world's advanc ed steel manufacturing enterprises in the ranks of major initiatives.From 2007 to 2015 of the planning,construction and production practice,has made remarkable achievements in the ind ustry.The continuous annealing unit is an important part of silicon steel production,and the w hole line tension control is the key to achieve product performance quality and stable operatio n.In this paper,the research background for production practice of Shougang shares in the co mpany Qian'an iron and steel company cause of silicon steel continuous annealing line,in the full study reference at home and abroad mature production line tension control technology an d digestion and absorption of imported technology and equipment based on,focuses on the co Id rolled coil take link tension control principle and realization method,in production system easy to realize and high control precision,the stability of the surface and in the quality of coil tower,the inhabitants of product quality control final mark.In this paper,we first introduce the plate coil section tension control present situation and the development of technology at home and abroad,and discusses the principle of indirect te nsion control,system analysis of tension of the formation process of coiler tension control sys tem mathematical model is established,based on constant linear velocity of indirect tension c ontrol method.Then the computational method of coiler inertia torque compensation,instantaneous coil diameter.The strip coiling process of acceleration and deceleration control method to generate dynamic torque which leads to the causes and the tension fluctuation.Through the analysis of the plate with regular exercise,get plate roll diameter reference value by counting method,an d then the second flow equal principle of the reference value is modified,got the plate coil dia meter calculation model,guarantees the accuracy and stability of calculating diameter of plate rolls.Finally introduces the configuration and application of system equipment,analyzes the c oil diameter calculation and tension control effect in actual system.The tension of the German company Siemens T400 board process control,PLC,inverter,and the corresponding industri al Ethernet,fieldbus,photoelectric encoder core hardware equipment complete constant tensio n control,adopted in the continuous annealing unit volume by taking the commissioning and continuous production verification.