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Apparatus for controlling the width of multi-stand rolling mill and method for the same

A multi-stand, rolling mill technology, applied in the field of width devices, can solve the problem of not being suitable for variable adjustment of slabs, etc.

Active Publication Date: 2015-06-24
浦项控股股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this is not suitable for variably adjusting the width of the slab because the rolling process in mini-mills has considerable variations in temperature and width which are greatly influenced by several factors

Method used

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  • Apparatus for controlling the width of multi-stand rolling mill and method for the same
  • Apparatus for controlling the width of multi-stand rolling mill and method for the same
  • Apparatus for controlling the width of multi-stand rolling mill and method for the same

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Embodiment Construction

[0031] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Exemplary embodiments of the present invention will be provided to enable those skilled in the art to more fully understand the present invention. In the following description, if it is determined that a detailed description of a known function or configuration related to the present invention makes the subject of the present invention unclear, the detailed description is omitted. The same reference numerals denote the same elements throughout the specification.

[0032] In addition, it will be understood that when elements are referred to as being connected to another element, they may be "directly connected" to each other, and furthermore "indirectly connected" to each other through intervening elements arranged therebetween. In addition, the meaning of "including an element" does not exclude the possibility of further including another element, unless otherwise s...

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Abstract

An apparatus for controlling the width of a multi-stand rolling mill and a method for the same are provided. The width control apparatus comprises: a measuring unit for measuring a steel sheet penetrating multiple roll stands so as to generate a measurement temperature value corresponding the surface temperature of the steel sheet; and a tension control unit for calculating a reference stress value corresponding to each of the multiple roll stands by respectively using target width variables set for the multiple roll stands, calculating final target stress values by using the measurement temperature value to compensate the reference stress values, and adjusting the tension of the roll stands according to the final target stress values.

Description

[0001] Cross references to related applications [0002] This application claims the rights and interests of the Korean Patent Application No. 10-2013-0161534 filed with the Korean Intellectual Property Office on December 23, 2013, the disclosure of which is incorporated herein by reference. Technical field [0003] The present disclosure generally relates to an apparatus and method for controlling the width of a multi-stand rolling mill, and more specifically, to the ability to quickly respond to changes in the temperature or width of a steel sheet that has undergone a rolling process. A device and method for controlling the width of a multi-stand rolling mill to accurately and accurately control the width of the steel plate. Background technique [0004] Generally, in a continuous casting process and rolling process, molten steel is formed into a slab, and then when the slab is continuously rolled and the slab is formed into a hot rolled steel sheet. In a small steel plant, the w...

Claims

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Application Information

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IPC IPC(8): B21B37/22B21B37/48B21B38/04
CPCB21B37/22B21B37/48B21B38/006B21B38/04B21B37/16B21B38/00
Inventor 金成炫李德万
Owner 浦项控股股份有限公司