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Method for Rolling Rolling Stock Having a Transitional Region

a technology of transitional region and rolling stock, which is applied in the direction of tension/compression control device, roll mill control device, manufacturing tools, etc., can solve the problems of rolling stock splitting, substantial disruption of process variables,

Inactive Publication Date: 2008-03-13
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] The object of the invention is to avoid the disadvantages known from the prior art and provide a method with the aid of which rolling stock having at least one transitional region can be reliably rolled, even in the possible presence of in part substantial differences in terms of the dimensions and / or properties of the rolling stock between partial areas of the rolling stock joined by means of a transitional region.

Problems solved by technology

When, according to known methods, partial areas having extremely different properties and / or dimensions are rolled in direct succession, that will as a rule be associated with substantial disruptions to the process variables.
In extreme cases said disruptions can cause the rolling stock to split.

Method used

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  • Method for Rolling Rolling Stock Having a Transitional Region
  • Method for Rolling Rolling Stock Having a Transitional Region
  • Method for Rolling Rolling Stock Having a Transitional Region

Examples

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Embodiment Construction

[0027]FIG. 1 shows a mill train 10 for rolling rolling stock 1 that moves through the mill train 10 at a speed v. The mill train 10 has at least two roll stands 2 which rolling stock 1 traverses. Rolling stock 1 traverses the mill train 10 in the direction of strip travel x. Rolling stock 1, preferably a metal strip, is continuously rolled in the mill train 10. The mill train 10 is preferably a cold-rolling mill train for steel having as a rule more than three roll stands 2. Located downstream of the roll stands 2 is a coiling device 3 on which the rolled rolling stock 1 is coiled.

[0028] The mill train 10, in particular the stands 2 of the mill train 10, is / are coupled to a computing device 4. Located in the mill train 10 are generators, not shown further in the drawing, which convey, for example, measuring signals to the computing device 4. The computing device 4 conveys preferably control signals to actuators in the mill train 10.

[0029] The computing device 4 preferably has a mo...

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Abstract

The invention relates to a method for rolling a product in a rolling train comprising at least two roll stands having a roll gap, the product to be rolled comprising a transition region. If a critical transition region crosses the rolling train, the roll gaps of the roll stands are successively opened and closed according to the position of the transition region moving at speed through the rolling train, in the direction of the direction of travel of the conveyor. The opening of the roll gaps occurs parallel to the position of the critical transition region when the product is displaced. A transition region is critical when the structure requires the roll gaps to be opened. The inventive opening of the roll gaps, when the device is moving, enables the controlled transition of a product to be rolled with extreme variations in dimensions and / or hardness, for a shorter length.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is the US National Stage of International Application No. PCT / EP2005 / 051943, filed Apr. 28, 2005 and claims the benefits of German Patent application No. 10 2004 022 334.3 filed May 6, 2004. All of the applications are incorporated by reference herein in their entirety.FIELD OF INVENTION [0002] The invention relates to a method for rolling rolling stock in a mill train that has at least two roll stands each having one roll gap, with the rolling stock requiring to be rolled having at least one transitional region. The invention relates further to a computing device for appropriately regulating a mill train. BACKGROUND OF THE INVENTION [0003] Particularly in the case of a continuously operated mill train the rolling stock has a plurality of partial areas that can differ in terms of their dimensions and / or material properties (also temperatures). Two successive partial areas of the rolling stock are joined by means of a tr...

Claims

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Application Information

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IPC IPC(8): B21B37/58B21B1/18B21B1/24B21B15/00B21B37/48B21B37/52
CPCB21B1/18B21B1/24B21B15/0085B21B37/48B21B37/52B21B37/58
Inventor FELKL, HANS-JOACHIMNIEMANN, MARTIN
Owner SIEMENS AG
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