Detection method for strip steel local high point

A technology of local high point and detection method, applied in the field of hot-rolled strip steel production, can solve the problems of large error and difficult strip steel, improve the quality level, solve the difficulty of manual detection and large error, and avoid batch local high points The effect of defects

Inactive Publication Date: 2014-07-16
武汉钢铁有限公司
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for detecting local high points of steel strips. The technical problems...

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  • Detection method for strip steel local high point
  • Detection method for strip steel local high point

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Embodiment Construction

[0046] In order to further illustrate the present invention, the technical means and effects adopted in order to achieve the predetermined purpose of the invention, the specific implementation, structure and the method for detecting local high points of strip steel proposed according to the present invention are described below in conjunction with the accompanying drawings and preferred embodiments. Features are described in detail below.

[0047] This embodiment provides a method for detecting local high points of strip steel, see figure 1 , is the flow chart of the method for detecting local high points of the strip.

[0048] figure 1 In, S100, measure the thickness of strip steel cross-section;

[0049] The steps of measuring the thickness of the strip steel cross-section described in this embodiment may specifically adopt the following methods:

[0050] Measure strip cross-sectional thickness at fixed time intervals; or

[0051] Continuous measurement of strip cross-se...

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Abstract

The invention relates to a detection method for a strip steel local high point. The detection method includes the steps that the thickness of the cross section of strip steel is measured; the strip steel in a designated range is divided into n sections in the width direction of the strip steel, n is a natural number larger than one, and the thickness differences of three continuous equal diversion points are calculated; if the thickness differences of the three continuous equal diversion points reach a set threshold value, the local high point is determined to exist within the designated range, and the maximum value in the thickness differences, obtained through calculation within the designated range, of the three continuous equal diversion points is taken as the representative value of the local high point; the position of the local high point and the representative value of the local high point within the designated range are taken as the detection value of the local high point within the designated range. The strip steel local high point is detected automatically, and the problems that manual visual inspection is large in detection difficulty and error are solved.

Description

technical field [0001] The invention relates to the technical field of hot-rolled strip steel production, in particular to a method for detecting local high points of strip steel. Background technique [0002] The local high point refers to a local protrusion of the strip steel section in which the thickness deviates from the thickness of the adjacent part in the local range on the cross section of the strip steel. When the height value of the protrusion part exceeds a reasonable range, it is called a local high point. [0003] The local high point problem is a common plate shape problem in hot-rolled strip steel. The local high point of the strip steel will cause stamping defects in cold-rolled materials and yield line defects in silicon steel products, which will eventually lead to poor product quality. influences. [0004] In the prior art, various measures have been taken to improve the local high point problem in the production process of hot-rolled strip, but the foll...

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Application Information

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IPC IPC(8): B21B38/04
Inventor 吴进
Owner 武汉钢铁有限公司
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