四辊平整机组复杂浪形控制技术

 针对平整机组因压下量小、变形热与摩擦热少、轧辊热凸度不大而无法采用精细冷却的方式控制中双组合浪、单肋浪、多肋浪、中肋组合浪、边肋组合浪等复杂浪形缺陷的问题，以四辊平整机组为研究对象，提出了一套采用非对称式结构来替代对称性结构，将板形控制手段从传统的对称弯辊（对称窜辊）、倾辊等二维增加到左弯辊、右弯辊、上窜辊、下窜辊以及倾辊等五维的板形控制思想，并在此基础上以实际板形与目标板形的差值最小为目标建立了一套适合于四辊平整机组的复杂浪形控制技术，通过左弯辊、右弯辊、上窜辊、下窜辊以及倾辊等板形控制参数的优化设定，有效解决了四辊平整机组复杂浪形缺陷的控制问题，弥补了平整机组因无法采用精细冷却而带来的板形控制先天性不足问题，为现场平整机组板形精细控制提供了一套新方法，具有进一步推广使用的价值。

Control technology of complex wave for 4-high temper mill

In allusion to small reduction， less deformation and friction heat and small roll thermal crown of temper mill， multi-zone cooling is incapable of controlling complex wave defects such as center and double edge composite wave， single rib wave， multi rib wave， center and rib composite wave， edge and rib composite wave. Taking 4-high temper mill as research object， the study presented a set of asymmetrical structure to replace symmetrical structure， changed strip shape control method from traditional 2-dimensional symmetric roll bending(symmetric roll shifting) and roll tilting to 5-dimensional left roll bending， right roll bending， upper roll shifting， bottom roll shifting and roll tilting. On this foundation， the study built a set of suitable complex wave control technologies for 4-high temper mill in order to minimum the difference between actual strip shape and target strip shape. Through parameter optimization of strip shape control for left roll bending， right roll bending， upper roll shifting， bottom roll shifting and roll tilting， this control technology solved effectively the problems of control defect on 4-high temper mill complex wave and made up for the congenital lack of shape control on temper mill which is incapable of using fine control，which provides a set of new method for strip shape-fine control on field temper mill， with further popularization and application value.