异步轧制高纯铝箔冷轧织构沿板厚的分布规律

通过异步轧制，研究了高纯铝箔冷轧织构沿板厚的分布规律。在异步轧制下，快、慢速辊侧之间的各中间层的织构类型不同。速比为1．28，形变量为99．2％时，随厚度的增加，呈现出极有规律的变化：（100）丝织构含量近线性减少，而（112），（102），（123）丝织构含量近线性增加。当形变量为99．2％时，在不同速比下（400）丝织构含量沿厚度变化趋势不同：速比1．28时，呈现出近线性递减；速比1．17和1．06时，总的趋势也是递减，且在厚度d＝0．04mm处有最小值。

Textures distribution along thickness after cross shear rolling of high purity aluminum foils

Textures distribution along the thickness af te r cross shear rolling of high purity aluminum foils was investigated. The result s show that large difference of cold rolling textures exists in the intermediate layer between the slow roller side and the fast roller. For the speed ratio 1.2 8 and deformation 99.2%, with increase of thickness, the volume fraction of {100 } fiber shows the near-linear decrease, however, the volume fraction of {112}, {102}, {123} fibers takes the near-linear increase. For the deformation 99.2%, there exist different tendency of change for the volume fraction of {001} fiber through the thickness at different speed ratios. For the speed ratio 1.28, the c hange of volume fraction of {001} fiber with the thickness presents near-linear decrease. For the speed ratio for 1.17, 1.06, the total tendency is also near- linear decrease. The relatively strong volume fraction of {001} fiber exists bet ween the slow side surface and the fast side surface, and the minimum is formed at the thickness d =0.04 mm side.