熱軋鋼帶盤捲缺陷與製程穩定性之改善

Improving Process Stability and Minimizing Coiling Defects for Hot-Rolled Strip Production

許元良(Y.L. Hsu) ； 顏家鈺(J.Y. Yen)

《鑛冶：中國鑛冶工程學會會刊》 52卷2期 (2008/06) Pp. 34-40

https://doi.org/10.30069/MM.200806_52(2).0002

摘要

為因應熱軋高品級產品的開發與生產，除了需要提升盤捲設備的生產能力之外，亦必需提升生產效能與品質控制技術，以滿足高精度與高穩定性的生產要求。本研究首先整合線上製程與離線品管資料，成功開發盤捲動態分析的網路型資訊平台，以協助研發以及現場工程師監控關鍵的製程參數與即時生產資訊。其次，利用有限元素法，建立可模擬鋼帶行進的三維動態分析系統，以澄清鋼帶於盤捲過程中發生偏移的可能原因；並開發鋼捲缺陷的預測模型，以提前預警可能持續發生的製程問題，並改善因下游延遲回饋而持續生產出異常鋼捲的問題。最後並開發出多項創新的盤捲控制技術，經應用於現場後有效提升設備控制效能，以及降低缺陷發生率。評估本項研究成果之年效益約可達四億八千萬元，相關創新技術並已申請多項專利之中。

關鍵字

動態模擬 ； 有限元素法 ； 盤捲缺陷 ； 熱軋鋼帶 ； 預測模型

並列摘要

To achieve the requirement of developing and producing high-quality coils for hot strip mill, it is necessary to upgrade the capability of the coiling equipments and to enhance the production stability and quality. In this research, a web-based analysis platform is developed to integrate the on-line process data and off-line quality inspection information. The analysis platform enables effective Process monitoring by means of analysing the instantaneous manufacturing quality control parameters and production data. A three-dimensional simulation system of finite element is developed to identify the possible cause for the abhormal production of the coiling strip. A predictive model for coiling defects is developed to provide early warning of possible manufacturing defects avoiding the continuous production of defect coils. Several innovative control techniques are developed to effectively improve the production efficiency and the surface quality of the coils. The annual benefit gained from this research is estimated to be NT$ 480 millions. The innovative control techniques developed by CSC are under several patent applications.

並列關鍵字

Dynamic simulation ； finite element method ； coiling defect ； hot-rolled strip ； prediction model