(1. 燕山大學 國家冷軋板帶裝備及工藝工程技術(shù)研究中心，秦皇島 066004；
2. 東北大學 軋制技術(shù)及連軋自動化國家重點實驗室，沈陽 110004；
3. 山東冠洲股份有限公司，聊城 252500)
摘 要: 帶材板形的在線表征和評價方法無法反映整體板形分布情況及每個區(qū)域的板形細節(jié)和變化趨勢，不利于生產(chǎn)中對控制系統(tǒng)模型參數(shù)進行優(yōu)化調(diào)整和后續(xù)的生產(chǎn)數(shù)據(jù)分析。為了提高在線板形表征的準確性，引入拋物線調(diào)配曲線法將帶材寬度方向上板形測量值進行插值擬合，建立擴充后的板形數(shù)據(jù)與顏色值之間的映射關(guān)系，結(jié)合實際板形缺陷在整個帶材寬度方向上的分布狀況給出冷軋帶材板形云圖的繪制模型。在此基礎(chǔ)上開發(fā)板形云圖繪制控件并將其集成到1450 mm五機架冷連軋機組的板形控制系統(tǒng)中，應用結(jié)果表明板形在線云圖監(jiān)控系統(tǒng)繪制的板形云圖可以反映整卷帶材任意區(qū)域的板形分布細節(jié)及其變化趨勢，實現(xiàn)對帶材板形質(zhì)量的在線精細監(jiān)控。
關(guān)鍵字: 冷軋；板形測量；板形云圖；數(shù)據(jù)擬合；板形控制
（1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China;
2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China;
3. Shandong Guanzhou Co., Ltd, Liaocheng 252500, China）
Abstract:The flatness arithmetic average or standard deviation curve of each measurement section is usually used for the online representation and evaluation of cold rolled strip flatness. It can not reflect the overall flatness distribution, the flatness details and changing trend of each area, which is not conducive to the optimization of the control model parameters and the production data analysis. In order to improve the accuracy of the on-line flatness characterization, the allocated parabolic curve method was introduced for the interpolation of the measured flatness in the width direction of strip, thus forming a more dense panel data information. According to the flatness defect distribution across the whole strip, the mapping relation between the expanded flatness data and the color value was established, and the colorized flatness sonogram drawing model was proposed by the scanning line method. On this basis, the flatness sonogram drawing control was developed and integrated into the flatness control system of a 1450mm tandem cold mill. Applications show that the online sonogram monitoring system can reflect the details of flatness distribution and its changing trend in any area of the whole strip, and the on-line monitoring of strip flatness is realized accurately.
Key words: cold rolling; flatness measurement; flatness sonogram; data fitting; flatness control
