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首页> 外文会议>International Conference on Steel Rolling >Effect of Hot- and Cold-Rolling Operations on Strip Crown and Feather Edge
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Effect of Hot- and Cold-Rolling Operations on Strip Crown and Feather Edge

机译：热轧和冷轧操作对带冠和羽缘的影响

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It is desirable to be able to control the strip thickness profile (crown and feather) during hot and cold rolling so that sheet and strip product can be rolled closer to the theoretical minimum weight (TMW), thereby reducing the amount of excess steel shipped to fill an order. Accordingly, a program was initiated to determine the variation in the strip-thickness profile and crown that can be expected within different hot-strip-mill rolling cycles. The results obtained from typical rolling cycles showed that strip crown decreased rapidly and almost linearly during the first 30 to 60 minutes of rolling when starting with redressed work rolls in the finishing stands. After the initial loss of strip crown, which was sometimes as high as 5 mils (0.127 mm), smaller but rapidly varying changes in crown were observed; these are attributed to factors associated with the thermal aspects of hot-strip rolling. In a separate investigation, strip-thickness-profile results showed that feather edge can be produced by the cold-rolling as well as by the hot-rolling operation. Also additional feather can be produced by cold rolling hot-rolled strip already having a feather-edge condition.
机译：希望能够在冷热轧制过程中控制带材厚度曲线（冠和羽毛），使得片材和条带产品可以靠近理论最小重量（TMW），从而减少运输到的多余钢的量填写订单。因此，启动了一个程序以确定可以在不同热带轧机滚动循环内预期的条带厚度曲线和冠的变化。从典型的轧制循环获得的结果表明，当在整理台上的弯曲工作辊开始时，在第一30到60分钟内，条带冠在第一30到60分钟内迅速下降。在初始损失的条带冠之后，这有时高达5密耳（0.127毫米），观察到冠的较小但迅速变化;这些归因于与热带轧制的热方面相关的因素。在单独的研究中，条带厚度型材结果表明，羽毛边缘可以通过冷轧和热轧操作产生。另外还可以通过冷轧热轧带材生产额外的羽毛，已经具有羽毛边缘状态。

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