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Control method of cold calender einlaufbereich

A control method and entrance section technology, applied in metal rolling, tail end control, metal rolling, etc., can solve problems such as strip scratches, improve quality, reduce strip head scratch rate, and increase yield Effect

Active Publication Date: 2009-12-09
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after the welding is completed, in the process of establishing the tension of the uncoiler, there will be relative sliding between the uncoiled strips, resulting in scratches on the upper and lower surfaces of the strips.

Method used

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  • Control method of cold calender einlaufbereich
  • Control method of cold calender einlaufbereich
  • Control method of cold calender einlaufbereich

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Experimental program
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Embodiment Construction

[0028] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0029] In order to understand the method provided by the present invention, first according to figure 1 Describe the structure of the inlet section of the cold rolling mill. The entrance section of the cold-rolling unit includes an entrance section double uncoiling system, scissors 4, common section pinch rolls 5, a welding machine 6, a looper 7 and an automatic control system 11 for controlling the entrance section of the cold-rolling unit; The uncoiling system includes No. 1 uncoiler 2 and No. 2 uncoiler 9, as well as idler roller 1 and idler 8 on the lower side of the uncoiler; steel strip 3 is connected to No. 1 uncoiler 2, and steel strip 10 is connected to No. 2 uncoiler 9 , through the scissors 4 and the pinch roller 5 of the common section to the welding machine 6 for welding, and finally to the looper 7 for punching, and the strip is temporar...

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Abstract

The invention relates to a control method for an inlet section of a cold mill train, which includes the following steps: searching a steel taping head firstly; after finishing to searching the steel head, pressing a carrier roller and keeping a pressing state; opening the carrier roller after punching a sleeve. The invention also includes a carrier roller protection step so as to avoid damages caused by the faults of the machinery and a control system. The invention can avoid an uncoiler from loosing winding during an uncoiling process, be used for reducing the steel taping head scuffing rate for the inlet section of the cold mill train and can be popularized and applied on other similar machine units.

Description

technical field [0001] The invention relates to a cold rolling group, in particular to a control method of the cold rolling group. Background technique [0002] The 2030C102 cold rolling unit of Baosteel is a continuous rolling system, and the entrance section is a double uncoiling system. It reaches the welding machine through the public section. After the welding is completed, the strip is temporarily stored through the looper and supplied to the rolling mill. Unit C102 mainly produces steel plates for home appliances such as automobile plates and refrigerator plates, and has relatively high quality requirements for strip steel. However, over the years, the scratches at the entrance section accounted for about 1.14% of the total strip steel production, which has a great impact on the yield. Because it is difficult to collect data at the entrance section, through the data collected at the quality inspection station at the exit section, it is found that the scratches in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/72B21B33/00
Inventor 陈虎王瑞庭黄佩杰黄春华施汉杰
Owner BAOSHAN IRON & STEEL CO LTD
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