冷轧管材工艺因素对变形锥沿q因子分布变化的影响分析

S. Pilipenko
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引用次数: 2

摘要

本文给出了冷轧过程中工艺因素对q因子沿变形锥分布变化影响的研究结果。在一定范围内轧制钛锆合金管材时,壁厚实际变形量与管径实际变形量之间的关系q因子值及其沿变形锥的分布规律是可控的。q因子决定了金属晶粒是径向取向还是切向取向。期望q因子沿整个变形锥沿其定值附近低振幅波动。计算结果表明,沿变形锥方向管壁厚度分布的计算方法对沿变形锥方向q因子分布的变化有显著影响。验证了工作面轮廓曲线母线芯芯的优点。文中确定的相关性可用于计算轧制进度和冷镦铣刀的校准。
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Analysis of the influence of cold pipe rolling technological factors on the change in Q-factor distribution along the deformation cone
The paper provides the results of studying the effect of technological factors of the cold pipe rolling process on the changingof Q-factor distribution along the deformation cone. The Q-factor value, which is the relationship between actual deformation on the wall thickness and actual deformation on the pipe mean diameter, and the pattern of its distribution along the deformation cone are controlledvalues when rolling pipes from titanium and zirconium alloys of a certain range. The Q-factor defines whether metal grains will be oriented radially or tangentially. It is desirable that Q-factor f luctuate around its definite value with low amplitude along the entire deformation cone. It is determined that the method used to calculate the pipe wall thickness distribution along the deformation cone has a significant effect on the change in the Q-factor distribution along the deformation cone. The advantages of using mandrels with a curvilinear generatrix of the working surface profile are confirmed. Dependences ascertained in the article can be used to calculate the schedules of rolling and calibration of cold pilgering mill tools.
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