连续退火炉内双锥度辊辊形参数对带钢跑偏的影响  被引量:9

Effect of double-taper roller shape on the running deviation of strips in a continuous annealing furnace

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作  者:王海玉[1] 杨荃[1] 张 王晓晨[1] 

机构地区:[1]北京科技大学国家板带工程中心,北京100083

出  处:《北京科技大学学报》2014年第3期373-377,共5页Journal of University of Science and Technology Beijing

基  金:"十二五"国家科技支撑资助项目(2011BAE23B04);轴向变位辊系冷轧机对称板形成机理与广义整体板形控制策略研究资助项目(FRF--TP--12--168A)

摘  要:针对连续退火炉实际生产过程中的跑偏问题,运用ABAQUS有限元软件建立炉辊--带钢动态仿真模型,定量计算了连续退火炉内双锥度辊辊形参数对带钢跑偏的影响,并分析了带钢的横向压应力以及产生的瓢曲变形.计算结果显示双锥度辊辊形对炉内带钢跑偏有明显的抑制作用,且随着锥度段总辊径变化量、辊径变化量比值和张力的增加,以及平直段长度的减少,带钢的跑偏量逐渐减少,最大横向压应力逐渐增大,使带钢发生瓢曲变形的概率增加.根据以上计算结果,建立带钢跑偏量的计算模型,并结合瓢曲变形理论,为进一步对加热段双锥度炉辊辊形和张力设定的优化提供了依据.To study the running deviation problem of strips during production in a continuous annealing furnace, a roll-strip dy-namic simulation model was built using finite element software ABAQUS to quantitatively calculate the effect of double-taper roller shape on the running deviation of strips in the continuous annealing process. The transverse compressive stress and the waved surface of strips were also analyzed. Computation results show that double-taper roller shape has obvious inhibition to the running deviation of strips. The running deviation of strips gradually reduces with the increases of total roller diameter variation, roller diameter variation's ratio and tension, as well as with the decrease in length of the roller's flat section, but the maximum transverse compressive stress in-creases gradually, which increases the probability of waved surface occurrence. According to the above results, a calculate model of running deviation was established, which can provide a theoretical basis for further optimizing double-taper roller shape and tension set-ting in the heating furnace section, in combination with the theory of waved surfaces.

关 键 词:热处理炉 带钢 轧制 轧辊 有限元法 

分 类 号:TG335[金属学及工艺—金属压力加工]

 

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