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    • 4. 发明专利
    • Method of continuously cold-rolling steel strip
    • 连续冷轧钢带的方法
    • JP2013081972A
    • 2013-05-09
    • JP2011222288
    • 2011-10-06
    • Jfe Steel CorpJfeスチール株式会社
    • FUKUNAGA TAKAYUKIHASEGAWA TETSUSHI
    • B21B1/22B21B37/26
    • PROBLEM TO BE SOLVED: To provide a method of continuously cold-rolling a steel strip which can stably perform continuous cold rolling of a steel strip even in cases that a material of a following steel strip is softer than that of a preceding steel strip, a plate thickness of the following steel strip is thicker than that of the preceding steel strip and a plate width of the following steel strip is narrower than that of the preceding steel strip.SOLUTION: Rolling draft positions of rolling stands 8b-8d are shifted in a direction of extending an interval between rolls before a welded part between the preceding steel strip 1a and the following steel strip 1b passes through respective rolling stands 8b-8d except for a first rolling stand 8a of a tandem rolling mill 6, and a rolling draft position of the first rolling stand 8a is shifted in a direction of extending an interval between rolls immediately after a leading tip of the following steel strip 1b passes through the first rolling stand 8a.
    • 要解决的问题:提供一种连续冷轧钢带的方法,即使在以下钢带的材料比先前的钢更软的情况下也能够稳定地进行钢带的连续冷轧 以下钢带的板厚比前述钢带的厚度厚,后续钢带的板宽比前述钢带的板宽窄。 解决方案:轧制机架8b-8d的轧制位置在先前的钢带1a和随后的钢带1b之间的焊接部分通过相应的轧制机座8b-8d之前沿着辊之间的间隔延伸的方向移动,除了 对于串联式轧机6的第一轧制机架8a,第一轧制机架8a的轧制拔除位置在紧随着后续钢带1b的前端部通过第一轧制机架的第一轧制机构 滚动台8a。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Tandem finishing mill, method for controlling operation of the same, and apparatus and method for manufacturing hot-rolled steel sheet
    • TANDEM FINISHING MILL,控制其操作的方法,以及制造热轧钢板的装置和方法
    • JP2011206780A
    • 2011-10-20
    • JP2010074195
    • 2010-03-29
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • WASHIKITA YOSHIRO
    • B21B37/26B21B1/26B21B37/00B21B45/02
    • PROBLEM TO BE SOLVED: To provide a tandem finishing mill, a method for controlling the operation of the same, and an apparatus and a method for manufacturing a hot-rolled steel sheet, by which tension variation can be suppressed even when the sheet thickness is changed and the use and the nonuse of a rolling lubricant are changed at the time of manufacturing an ultrafine grain steel.SOLUTION: In the tandem rolling mill, the method for controlling the operation of the same, the apparatus and the method for manufacturing the hot-rolled steel sheet, when the target value of the sheet thickness from the m-th stand to the N-th stand during rolling one material to be rolled is changed, the target value of the sheet thickness changing time, which is common from the m-th stand to the N-th stand, is determined; the changing rate of the target value of the sheet thickness at the n-th stand is determined from the changing time and the changing amount of the sheet thickness of the n-th stand; the change of the target value of the sheet thickness at the n-th stand is started at the changing rate simultaneously when the changing point of sheet thickness is arrived at the n-th stand; the change of the target value of the sheet thickness is finished after elapsing the changing time and the screw-down position of the n-th stand is corrected continuously so that the sheet thickness on the outlet side of the n-th stand is coincident with the target value of the sheet thickness at least during changing the target value of the sheet thickness of the n-th stand.
    • 要解决的问题:为了提供一种串列精轧机,一种控制其操作的方法,以及一种用于制造热轧钢板的设备和方法,即使当板厚度为 改变了轧制润滑剂的用途和不使用在制造超细晶粒钢时发生变化。解决方案:在串联轧机中,控制其操作的方法,该设备和制造热的方法 轧制钢板在轧制期间从第m台到第N台的板厚的目标值发生变化时,板厚变化时间的目标值从 第m站立到第N个立场,确定; 根据第n台的纸张厚度的变化时间和变化量确定第n台的纸张厚度的目标值的变化率; 当第n台上的纸张厚度的变化点到达时,在第n台上的纸张厚度的目标值的变化同时以变化率开始; 纸张厚度的目标值的变化在经过改变时间之后结束,并且第n台的拧紧位置被连续地校正,使得第n台的出口侧的纸张厚度与 至少在改变第n台的板厚度的目标值时的板厚的目标值。