纵向内应力是由于轧件内部的拉伸不均匀引起的，这使得轧件宽度上施加的张力有向上的差异。所谓目标带钢形状曲线，是指在带钢的外张力作用下，沿带钢宽度方向的张力差所形成的曲线。它不仅反映了带钢的真实形状，而且是现代轧机板形控制的重要手段。在日常生产中，常用的曲线主要有平曲线、正弦曲线和余弦曲线等。
　　The longitudinal internal stress is caused by the uneven tension inside the rolled piece, which makes the tension applied on the width of the rolled piece upward difference. The so-called target strip shape curve refers to the curve formed by the tension difference along the strip width direction under the external tension of the strip. It not only reflects the real shape of strip, but also is an important means of shape control in modern rolling mill. In daily production, the commonly used curves are mainly flat curve, sine curve and cosine curve.

　　底部两侧的正弦曲线翘曲，有利于减少轧制过程中带钢断裂的概率，适合冷轧薄板的生产。余弦曲线两侧上翘，轧件两侧中间紧松，适用于生产毛坯或厚板。平曲线适用于生产特种薄板或铝箔轧制。
　　The sine curve warping on both sides of the bottom is beneficial to reduce the probability of strip fracture during rolling, and is suitable for the production of cold-rolled sheet. Both sides of the cosine curve are warped, and the middle of the two sides of the rolled piece is tight and loose, which is suitable for the production of blanks or thick plates. Flat curve is suitable for the production of special sheet or aluminum foil rolling.
　　以上是铝板生产厂家为大家介绍的“目标铝板板形曲线的选择”想要了解更多铝板信息，欢迎访问网站：http://www.jndclyyxgs.com
　　The above is the "selection of target aluminum plate shape curve" introduced by aluminum plate manufacturers. To learn more about aluminum plate information, please visit the website: http://www.jndclyxgs.com