METHOD FOR CONTROLLING THICKNESS IN TANDEM COLD ROLLING MILL AND APPARATUS THEREOF

Disclosed in the present invention are a method and an apparatus to control a thickness in a continuous cold rolling process. According to the present invention, the method and apparatus to control the thickness in a continuous cold rolling process comprises: a step of receiving transportation speed...

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Bibliographische Detailangaben
Hauptverfasser:	HUR, SEUNG MIN, WOO, KYOUNG SIK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed in the present invention are a method and an apparatus to control a thickness in a continuous cold rolling process. According to the present invention, the method and apparatus to control the thickness in a continuous cold rolling process comprises: a step of receiving transportation speed of a strip by a continuous cold rolling, and each length of the sections of a welded coil from a speedometer and a senior control device by an AGC control part; a step of determining the welding section based on the transportation speed and length of a section by the AGC control part; and a step of executing an AGC operation through an application of different control devices based on rolling data inputted from a senior control device for a welded section, and a non-welded section by determining the welding section by the AGC control part. 본 발명은 연속 냉각 압연에서의 두께 제어 방법 및 장치이 개시된다. 본 발명의 연속 냉간 압연에서의 두께 제어 방법은, AGC 제어부가 속도계와 상위제어장치로부터 연속 냉간 압연에 의한 스트립의 이송속도와 용접된 코일의 구간길이를 각각 입력받는 단계; AGC 제어부가 이송속도와 코일의 구간길이를 기반으로 용접구간을 판단하는 단계; 및 AGC 제어부가 용접구간을 판단하여 용접구간과 비용접구간에 대해 상위제어장치로부터 입력된 압연정보를 기반으로 서로 다른 제어기를 적용하여 AGC 구동을 수행하는 단계를 포함하는 것을 특징으로 한다.