Surface roughness rolling-transfer regularity and prediction model of high strength steel strips
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摘要: 針對高強度帶鋼表面粗糙度的特殊要求和控制難題,采取批量工業生產實驗和數理統計的方法,研究高強度帶鋼表面粗糙度的軋制轉印及變化規律,以及軋機工作輥表面粗糙度的變化規律.確定了高強度帶鋼表面微觀形貌由末機架決定,分別建立了高強度帶鋼表面粗糙度預測模型、軋制轉印率模型和軋機工作輥表面粗糙度預測模型.比較了高強度帶鋼與普通強度帶鋼的軋制轉印行為.研究結果可用于工業生產過程中預測高強度帶鋼表面粗糙度,合理安排冷軋軋制順序和軋制計劃,以及預測確定工作輥上下機時間節點.Abstract: The surface roughness rolling-transfer and change law of high strength steel strips and the surface roughness change law of working rolls are studied through a batch of field experiments and analyzed by a statistical method to find out a control method of producing high strength steel strips with especially required roughness. Experimental results show that the surface morphology of high strength steel strips is determined by the end of the continuous rolling mill. A surface roughness prediction model and a rolling-transfer rate model of high strength steel strips and a surface roughness prediction model of working rolls are established in this paper. The rolling-transfer behaviors of high strength steel strips are compared with those of normal strength steel strips. These models can be used to predict the surface roughness of high strength steel strips during industrial production,help to order the cold rolling sequence and make a rolling plan more efficiently,and determine the roll replacing time.
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Key words:
- high strength steel /
- strip steel /
- rolling /
- surface quality /
- roughness /
- stepwise regression analysis
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