热连轧机外文文献翻译、中英文翻译

3.0 设计吧 2023-02-13 72 4 53KB 8 页 10光币

侵权投诉

ABSTRACT

There are provided an even number of paired roll-shift type rolling mills 12a,12b and a controller

16 for controlling the rolling mills 12a,12b.

Each of upper and lower work rolls 13 of each of the roll-shift type rolling mills has a

predetermined crown curve and has a roll shifting mechanism 14 for axially shifting the upper and

the lower work rolls relative to each other.

The controller 16 determines a shift amount of each rolling mill in order to obtain a predetermined

cross section shape of a steel plate,shifts the work rolls of the rolling mill on the upstream side

paired every rolling coil to thereby disperse wear on the roll surface,and moves the work rolls of

the rolling mill on the downstream side of the pair in a predetermined direction by the same

distance,thereby canceling the change in the cross section shape of the plate by the shifting

operation for the wear dispersion.

摘要

有一对轧辊轴向移动式轧机 12a，12b 以及控制轧机 12a，12b 的控制器 16。

每组轴向移动的轧辊机中的工作轧辊 13 的各自上边缘与下边缘都有预定的凸边曲线，同时

轧辊移位装置 14 用以控制上下工作轧辊彼此间的轴向相对移动。

控制器 16 控制每一个轧机的位移量为了获得钢板的预定截面形状，它通过移动轧机每组成

对的轧辊中上边的工作轧辊上的每组成对的轧辊以此来使轧辊的上下表面的离差，同时使

轧机成对工作的下方的轧辊在预定的方向上移动同样的距离，以此通过改变磨轧的离差的

过程来撤销板的截面形状的变化。

HOT TANDEM ROLLING MILL

BACKGROUND OF THE INVENTION

1.Field Of The Invention

The present invention relates to a hot tandem rolling mill which can perform both shape control

by shifting rolls and wear dispersion.

2.Related Background Art

A roll-shift type rolling mill schematically shown in FIG.1(for example,U.S.

Pat.No.5,640,866,Janpanese Patent Laid-Open No.7-232202,and the like)is known as a roll mill

used to obtain a very flat plate product.According to the roll-shift type rolling mill,upper and

lower work roll 1 having convex and concave parts as shown in U.S.Pat.No.5,640,866 are

alternately shifted in the axial direction of the rolls,and roll a plate member 2,thereby controlling

the shape in cross section of the plate member.

On the other hand,in an ordinary hot finishing rolling mill,a rolling part of the surface of a roll is

worn as the number of plates which are rolled increases.Especially,the end parts of the roll are

worn morn than the center part.When a plate to be rolled next is wide,the cross section of the plate

has a shape in which the both ends are thicker(those are called cat's ears) as schematically in FIG.2

and the rolled shape deteriorates.

热连轧机

发明的背景

1、发明的领域

本发明与热连轧机相关，它通过转动轧辊以及磨轧离差来控制是板面的形状。

2、相关技术背景

图1所示的是轧辊滚动式轧机的原理简图（例如，U.S.Pat.No.5,640,866,Janpanese Patent

Laid-Open No.7-232202 等），它是用来获取平钢板产品的轧制设备。根据轧辊移动式轧机,

工作辊 1的上部和下部有如图 U.S.Pat.No.5,640,866 凸、凹部分是在轴向尺寸交替变化的轧

辊。轧制板面 2可以控制整个板面的截面形状。

另一方面，一个普通的完备的热轧机中，轧辊表面轧制部分的外形的磨损是随着已被轧制

钢板的数目越来越厉害。特别是，轧辊末端磨损大于中间部分。当下一个待轧钢板很宽时，

钢板的横截面会形成两端厚的形状（那些被形象地称为猫耳朵）如简图 2所示，同时这个

卷形会变形。

In a conventional hot finishing rolling mill,therefore,the width of a plate cannot be freely changed

and rolling operation is performed according to a predetermined operation schedule(called a coffin

schedule)as shown in an example of FIG.3.According to the example of FIG.3,the axis of abscissa

denotes the number of rolling coils after roll replacement and the axis of ordinate shows the

rolling width of plates.In order to obtain a necessary plate width,rolling operation for narrow

plates is repeated and the rolls are warmed,and plate members are rolled in accordance with the

order of the wider plate members.Other various operation schedules are used according to hot

finishing rolling lines.

在传统的热轧机，要求钢板的宽度不可以随意变动，根据预定的运行流程（所谓的密闭流

程）轧制流程正如图 3的例图所示。

根据图 3的例图，轴的横坐标表示通过轧制的轧辊数目，纵坐标代表轧板的轧制宽度。为了

获取一个需要的轧板宽度，轧制系统将窄轧板重复轧制，轧辊在轧制前要预热。钢板的轧

制要按照宽钢板的轧制顺序。其他的各种轧制过程依据热轧相关规则。

In the conventional hot finishing rolling mill,as mentioned above,since the rolling operation is

performed according to a predetermined operation schedule,there is a problem that schedule-free

rolling operation which is performed irrespective of the plate width cannot be executed.

上面提到的传统的热轧机，由于轧制操作是根据预定的操作流程来执行的，那么将导致一

个问题，即不考虑钢板宽度的自由规程轧制过程降无法执行。

Consequently,there has been proposed that the upper and lower work rolls are axially shifted

relative to each other by using the above-mentioned roll-shift type rolling mill,thereby dispersing

local wear of the surface of the roll and achieving the schedule-free rolling operation.In this

case,however,since a shifting function is used to disperse the wear of the surface of the roll,there is

a problem that an inherent control of the cross section shape cannot be performed.

因此，由已经提出的，上下工作辊根据上述的滚扎轧辊移动式轧机的原理，通过彼此相对

的轴向移动，从而分散轧辊表面的磨轧，而实现自由规程轧制。然而在这种情况下，由于

移动的运行使轧辊的表面离差产生，将导致一个不可避免的问题，即截面形状的控制无法

保证。

That is,hitherto,the function of shifting the upper and lower work rolls of the roll-shift type

rolling mill in the axial direction is used to control the cross section shape of a steel plate.The

shifting function is,however,used for dispersing the wear of the roll,so that the shape cannot be

controlled.There is consequently a problem that the wear dispersion and the cross section shape

control are incompatible.

这是迄今为止，通过利用轧辊移动式轧机的上下工作轧辊在轴向的移动功能来控制钢板的

截面形状。然而，这个移动的功能是使轧辊相互错位，以致无法控制形状。因此，表面的形

状的不平整性和截面形状的控制仍存在不相容性问题。

SUMMARY OF THE INVENTION

The present invention is provided in order to solve the problems.Therefore it is an object of the

present invention to provide a hot tandem rolling mill which can realize both of schedule-free

rolling operation by dispersing wear of the surface of the roll and a control of a cross section shape

of a steel plate.

该发明的概括

现今的发明是为了解决问题。因此本连轧机的发明，在实现分散轧辊表面的离差的同时，

又控制钢板截面的面积而完成自由规程轧制。

According to the present invention,there is provided a hot tandem rolling mill having roll-shift

type rolling mills of an even number which are paired and a controller for controlling the rolling

mills.Each of upper and lower work rolls of each of the roll-shift type rolling mills has a

predetermined crown curve.There is also provided a roll shifting mechanism for axially moving

the upper and lower work rolls relative to each other.The controller determines a shift amount of

each rolling mill in order to obtain a predetermined cross section shape of a steel plate,shifts the

work rolls of the rolling mill on the upstream side of a pair by a predetermined amount by using

the shift position as a center for every rolling coil to thereby disperse wear of the surface of the

roll,and moves the work rolls of the rolling mill on the downstream side of the pair in a

predetermined direction by the same distance.thereby canceling the change in the cross section

shape of the plate caused by the shifting operation for the wear dispersion.

本发明所提供的热连轧机，有两个成对的轴向移动式轧机和控制轧机的控制器。每个轴向

移动式轧机的上下工作辊都有预定的凸度曲线。也提供了使上下工作轧辊在轴向相对彼此

的转移机械装置。该控制器控制每个轧机的移量为了获得钢板的预定横截面形状，它通过

转移位置作为中心改变轧机中的一对工作轧辊的上游移量用以分散轧辊的表面离差。同时

移动一对下游轧机在工作轧辊在预定方向相同的距离。从而撤销由磨损离差在移位操作过

程中引起的板的截面形状的改变。

According to the construction of the present invention,since rolling operation is performed by

axially shifting the work rolls of the roll-shift type rolling mills of an even number which are

paired by using the shift position determined to obtain a predetermined plate crown for every

rolling coil,the wear of the surface of each roll can be dispersed.Further,by performing the rolling

operation of the rolling mills on the upstream and downstream sides in a predetermined

direction(for example,opposite direction or the same direction)by the same distance,the change in

the cross section shape of the steel plate caused by the shifting operation to disperse wear

occurring in the rolling mill on the upstream side can be canceled by the rolling mill on the

downstream.Since the plate crown is controlled by changing the center position of the schedule-

free rolling operation and the control of the cross section shape of the steel plate,that is,the plate

crown control by the dispersion of the local wear of the roll surface can be compatibly performed.

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摘要：

ABSTRACTThereareprovidedanevennumberofpairedroll-shifttyperollingmills12a,12bandacontroller16forcontrollingtherollingmills12a,12b.Eachofupperandlowerworkrolls13ofeachoftheroll-shifttyperollingmillshasapredeterminedcrowncurveandhasarollshiftingmechanism14foraxiallyshiftingtheupperandthelowerworkrolls...

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