轧机的板形和平直度技术的最优选择

中文字数:2870,中文页数:5 英文字数:1827页数:6

Selection of optimum strip profile and flatness technology  for  rolling  mills
 Proper selection of optimum strip profile and flatness technology for a new rolling mill or assessing the merits of existing equipment id of major importance. Mill trials to accomplish this selection would require a considerable amount of time，effort and expense. Therefore, the development of computer models that can accurately describe the behavior of strip in the roll gap is instrumental to understanding strip profile and flatness phenomena，and the factors influencing them. et the following requirements.
Provide required strip crown control range, usually from 20 to 70um. This must be achieved using the minimum number of sets of roll mechanical crowns.
Provide required strip flatness usually from 16 to 40 I-units.
Provide reduced edge drop.
Provide schedule-free rolling.
 In cold rolling, the strip relative crown that was obtained in a hot strip mill is usually maintained while strip flatness is kept between 10 to 20 I-units.

轧机的板形和平直度技术的最优选择
 对于一台新的轧机或者评估设备存在的价值而言，合适的板形的平整技术和最优选择是非常重要的。选择良好性能的轧机需要相当多的时间，精力和费用。因此，能够准确描述轧辊缝间板带的状态的计算机模型的发展。对于很好理解板形和平整现象以及影响它们的因素有很到的帮助。
对于热轧厂的板带轮廓和平直度控制系统应该通常满足以下必要的条件：
保证所需板带凸度要控制在一定的范围，通常从20微米到70微米，它这个范围是机械滚动装置所允许使用的最小值
保证所需板带平整通常从16I-units到40I-units。
保证减少板带边缘波浪。
保证长时间轧制。
 在冷轧卷曲中，从热轧厂得到的技术条件通常被保留。但板带平整一般保持在10I-units至20I-units之间。

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