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发明公开
CN106170567A 具有厚度变化的带材的制造方法以及相应的带材 有权

具有厚度变化的带材的制造方法以及相应的带材
摘要：
本发明涉及一种沿长度方向具有厚度变化的带材的制造方法，其中，所述方法包括如下步骤：沿所述初始带材的长度方向对初始带材进行均匀冷轧，以获得沿轧制方向具有恒定的厚度的中间带材；沿所述中间带材的长度方向对所述中间带材进行柔性冷轧，以获得具有厚度变化的带材(4)，该带材沿其长度方向包括，具有第一厚度(e+s)的第一区域(7)，以及具有小于所述第一厚度(e+s)的第二厚度(e)的第二区域(10)；对所述带材(4)进行连续退火。于可选的中间再结晶退火后，由所述均匀冷轧步骤和柔性冷轧步骤在所述第一区域(7)内产生的塑性变形比大于或等于30％。
摘要（英）：

The invention relates to a method for the manufacture of a strip having a variable thickness along the length thereof, wherein said method comprises the following steps: - uniform cold rolling of the initial strip along the length thereof to obtain an intermediate strip having a constant thickness in the direction of rolling; - flexible cold rolling of the intermediate strip along the length thereof to obtain a strip (4) having a variable thickness having, along the length thereof, first areas (7) having a first thickness (e+s) and second areas (10) having a second thickness (e), less than the first thickness (e+s), - process annealing of the strip (4). The plastic deformation rate, after optional process annealing, resulting from the steps of uniform cold rolling and flexible cold rolling in the first areas (7) is greater than or equal to 30%.

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