厚规格钢板蛇形轧制时特征角关系式的理论研究
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摘要
蛇形轧制作为一种新型的轧制方式,在咬入角和中性角方面的研究甚少,为了实现厚规格钢板的蛇形轧制过程,需针对以上问题进行研究。根据轧制理论及蛇形轧制变形区的特点建立了同径异速蛇形轧制和同速异径蛇形轧制压下量计算模型、咬入角计算模型以及咬入角与中性角的关系式。该关系式对于蛇形轧制过程中中性点的计算提供了一种精度修正方法,该方法对于后续轧制力和轧制力矩的计算具有一定意义。
Snake rolling as a new type of rolling has little research on the bite angle and neutral angle. In order to realize the snake rolling process of thick steel plate,it is necessary to study the above problems. According to the rolling theory and the characteristics of snake rolling deformation zone,the calculation model of the same diameter different speed snake rolling,the different diameter same speed snake rolling and the bite angle are established. At the same time,the relation between the bite angle and the neutral angle is given. The relation provides a correction method for the calculation of neutral point in the process of snake rolling. This method has some significance for the calculation of the following rolling force and rolling moment.
Snake rolling as a new type of rolling has little research on the bite angle and neutral angle. In order to realize the snake rolling process of thick steel plate,it is necessary to study the above problems. According to the rolling theory and the characteristics of snake rolling deformation zone,the calculation model of the same diameter different speed snake rolling,the different diameter same speed snake rolling and the bite angle are established. At the same time,the relation between the bite angle and the neutral angle is given. The relation provides a correction method for the calculation of neutral point in the process of snake rolling. This method has some significance for the calculation of the following rolling force and rolling moment.
引文
[1]W.Yu,G.S.Li,Q.W.Cai.Effect of a novel gradient temperature rolling process on deformation,microstructure and mechanical properties of ultra-heavy plate[J].Journal of Materials Processing Technology,2015,Vol.217(3):317-326.
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[3]Yeong M.H.,Gow Y.T.Analytical and experimental study on asymmetrical sheet rolling[J].International Journal of Mechanical Sciences,1997,Vol.39(3):289-303.
[4]H.Gao,S.C.Ramalingam,G.C.Barber,et al.Analysis of asymmetrical cold rolling with varying coefficients of friction[J].Journal of Materials Processing Technology,2002,Vol.124(1-2):178-182.
[5]付垚,谢水生,熊柏青,等.主应力法计算蛇形轧制的轧制力[J].塑性工程学报,2010,Vol.85(17):103-109.
[6]L.Y.Jiang,C.J.Zhao,G.Yuan,et al.Thicker Steel Plate Shape Changing Law and Control Method during Snake Rolling Process[J].Metallurgical Research and Technology,2016,Vol.113(2):1-11.
[7]付垚,谢水生,熊柏青,等.铝合金蛇形轧制轧板曲率解析模型研究[J].稀有金属,2011,Vol.35(6):805-811.
[8]付垚,谢水生,熊柏青,等.主应力法计算蛇形轧制的轧制力[J].塑性工程学报,2010,Vol.85(17):103-109.
[9]T.Zhang,Y.X.Wu,H.Gong,et al.Effects of rolling parameters of snake hot rolling on strain distribution of aluminum alloy 7075[J].Transactions of Nonferrous Metals Society of China,2014,Vol.24(7):2150-2156.
[2]Pan D.,Sansome D.H.An experimental study of the effect of roll speed mismatch on the rolling load during the cold rolling of the thin strip[J].Journal of Mechanical Working Technology,1982(4),16:361-37.
[3]Yeong M.H.,Gow Y.T.Analytical and experimental study on asymmetrical sheet rolling[J].International Journal of Mechanical Sciences,1997,Vol.39(3):289-303.
[4]H.Gao,S.C.Ramalingam,G.C.Barber,et al.Analysis of asymmetrical cold rolling with varying coefficients of friction[J].Journal of Materials Processing Technology,2002,Vol.124(1-2):178-182.
[5]付垚,谢水生,熊柏青,等.主应力法计算蛇形轧制的轧制力[J].塑性工程学报,2010,Vol.85(17):103-109.
[6]L.Y.Jiang,C.J.Zhao,G.Yuan,et al.Thicker Steel Plate Shape Changing Law and Control Method during Snake Rolling Process[J].Metallurgical Research and Technology,2016,Vol.113(2):1-11.
[7]付垚,谢水生,熊柏青,等.铝合金蛇形轧制轧板曲率解析模型研究[J].稀有金属,2011,Vol.35(6):805-811.
[8]付垚,谢水生,熊柏青,等.主应力法计算蛇形轧制的轧制力[J].塑性工程学报,2010,Vol.85(17):103-109.
[9]T.Zhang,Y.X.Wu,H.Gong,et al.Effects of rolling parameters of snake hot rolling on strain distribution of aluminum alloy 7075[J].Transactions of Nonferrous Metals Society of China,2014,Vol.24(7):2150-2156.