Strip break on-line detection method of acid pickling-rolling mill integral unit

A technology that combines units and detection methods, applied in mechanical bearing testing, metal rolling, length measuring devices, etc., can solve problems such as difficulty in coordinated control and easy failure

Active Publication Date: 2010-10-06
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Abstract
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Problems solved by technology

[0003] However, due to the use of combined units, there are many devices, and coo

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  • Strip break on-line detection method of acid pickling-rolling mill integral unit
  • Strip break on-line detection method of acid pickling-rolling mill integral unit

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[0056] Such as figure 1 As shown, the present invention focuses on the process characteristics and fault history of the combined pickling and cold rolling mill, and the online monitoring program for the strip breakage of the combined pickling and cold rolling mill focuses on the following aspects:

[0057] (1) Weld tracking and monitoring

[0058] The pickling mill sets a total of 6 weld tracking points WPD1-WPD6. When the weld passes through each position, the process parameters need to be adjusted according to the incoming material and rolling specifications according to the process requirements. The weld detector is used to track the position of the strip. Each time a weld signal is received, the strip tracking software will perform a synchronous correction of the strip length, so as to accurately track the weld position of the strip.

[0059] (2) Looper broken belt monitoring

[0060] The function of the looper is to adapt to changes in the normal production rhythm to maintain t...

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Abstract

The invention relates to an acid pickling-rolling mill integral unit, in particular to an on-line detection method of the acid pickling-rolling mill integral unit. The method comprises the following steps: performing welding seam tracking, monitoring and warning, outputting the related signals, performing loop monitoring and warning, outputting the related signals, performing straightening and withdrawal machine monitoring and warning, outputting the related signals, performing rolling mill monitoring and warning, and outputting the related signals to realize strip break positioning. The invention establishes a method for collecting the strip break monitoring signals of the acid pickling-rolling mill integral so as to perform effective monitoring aiming at the reason of strip break and realize the strip break online monitoring, warning and positioning of the acid pickling-rolling mill integral unit.

Description

technical field [0001] The invention relates to a combined pickling and rolling mill, in particular to an on-line detection method for a combined pickling and rolling mill. Background technique [0002] Since the beginning of 1980, Japan's Nippon Steel Corporation successfully combined the pickling unit and the cold tandem rolling unit into one unit to achieve continuous production. Because this tree not only retains the advantages of the full continuous rolling mill, but also saves uncoilers and coilers. Repeated investment and technical development, dozens of combined units have been built all over the world, and the development momentum is quite rapid. According to the analysis, after adopting the combined unit, the pickling force will increase by 10%, and the cold rolling capacity will increase by 40%. [0003] However, due to the use of combined units and numerous devices, coordinated control is more difficult than a single unit and is prone to failure. According to i...

Claims

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Application Information

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IPC IPC(8): B21B38/00G01M13/04
Inventor 蔡正国
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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