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    • 8. 发明申请
    • ROLLING OF ROLLING MATERIAL WITH TENSION CHANGE AT THE ROLLING OF THE TAIL END OF THE ROLLING MATERIAL
    • 滚动材料的尾端滚动时的拉伸变形滚动材料的卷取
    • WO2016108852A1
    • 2016-07-07
    • PCT/US2014/072778
    • 2014-12-30
    • PRIMETALS TECHNOLOGIES GERMANY GMBHLING, Yun
    • LING, YunJUSTEN, CristianoRICHES, Paul Barry
    • B21B37/46
    • B21B37/46B21B1/16B21B37/52B21B2265/06B21B2273/16B21B2275/06
    • A rolling material (1) is rolled firstly in roll stands (3) of a front group (2) of roll stands (3) of a rolling mill and then in roll stands (5) of rear group (4) of roll stands (5) of said rolling mill. During rolling of front sections (12) of said rolling material (1) in the roll stands (5) of said rear group (4) of roll stands (5), rear sections (13) of said rolling material (1) are rolled in the roll stands (3) of said front group (2) of roll stands (3). A run-out speed (v1) with which the rolling material (1) is exiting said front group (2) of roll stands (3) is detected. A run-in speed (v2) with which the rolling material (1) is entering said rear group (4) of roll stands (5) is detected. A rolling speed (v) with which the rear group (4) of roll stands (5) is driven is controlled by a controller (16) such that a relation (V) of the run-in speed (v2) to the run-out speed (v1) equals a predetermined value (a). Said predetermined value (a) is kept constant until a time point (t0) at which a tail end (18) of the rolling material (1) reaches a predetermined location upstream of the front group (2) of roll stands (3), and is changed according to a predetermined function after said time point (t0).
    • 轧制材料(1)首先在轧机的轧机机架(3)的前组(2)的辊架(3)中轧制,然后在辊架的后组(4)的辊架(5) 5)。 在轧制机架(5)的所述后组(4)的辊架(5)中轧制所述轧制材料(1)的前部(12)的过程中,轧制材料(1)的后部(13) 在辊架(3)的所述前组(2)的辊架(3)中。 检测轧制材料(1)离开辊架(3)的前组(2)的跑出速度(v1)。 检测轧制材料(1)进入辊架(5)的后组(4)的速度(v2)。 通过控制器(16)控制滚动机架(5)的后组(4)的滚动速度(v),使得速度(v2)与跑步速度(v)的关系(V) 输出速度(v1)等于预定值(a)。 所述预定值(a)保持恒定,直到轧制材料(1)的尾端(18)到达辊架(3)的前组(2)上游的预定位置的时间点(t0) 并且在所述时间点(t0)之后根据预定功能改变。