ABSTRACT

Breakout is a serious accident during continuous casting. Sticker is the main type of breakout accidents. The propagation behaviour of sticker breakout in mould is the key to recognizing and preventing breakout accident. A visual monitoring system of breakout has been developed to capture sticker characteristics, which usually consist of hot and cold regions. According to the propagation behaviour of sticker breakouts, four templates were selected with a Euclidean distance algorithm, such as typical, long-span, left one-sided and right one-sided templates. Then, the template matching algorithm was applied to identify the true and false sticker breakouts. The results show that 120 cases of true and false stickers can be distinguished. The recognition rate of true sticker is 100%. There is no false sticker to be determined as a true sticker. This method is not only helpful to capture the propagation behaviour characteristics of sticker breakouts in the mould thermograph but also improves the accuracy of breakout prediction.

摘要

漏钢是连铸过程中的严重事故。不干胶是最主要的突围事故类型。粘胶漏钢在模具中的传播行为是识别和预防漏钢事故的关键。开发了一种可视化漏钢监测系统来捕捉通常由热区和冷区组成的贴纸特征。根据贴纸突破的传播行为，采用欧几里得距离算法选择了四种模板，如典型模板、大跨度模板、左单边模板和右单边模板。然后，应用模板匹配算法来识别真假贴纸突破。结果表明，120例真假贴纸均能辨别。真贴纸识别率为100%。无假贴可判定为真贴。