Algorithm for determining offsets of strip steel by utilizing contact type strip-shaped rolls

A contact and offset technology, applied in the field of steel rolling, can solve problems such as production, equipment and instrument damage, belt breakage accidents, etc., to achieve the effect of stable rolling and improved quality

CN108804831AActive Publication Date: 2018-11-13ANGANG STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-11-13

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Abstract

The invention provides an algorithm for determining offsets of strip steel by utilizing contact type strip-shaped rolls. The algorithm comprises the following steps of: mounting a contact type plate-shaped roll at the outlet of a cold strip rolling mill, comparing radial force detected by the contact type plate-shaped roll with radial force between two adjacent segments F (i), determining a stripsteel edge area and determining sizes of areas not covered by the strip steel on a transmission side and an operation side; and calculating a different between offsets of the strip steel on the transmission side and the operation side through the sizes of the areas not covered by the strip steel on the transmission side and the operation side. According to the algorithm, the offsets of strip steeldetermined through plate-shaped rolls directly enter a plate shape control module so as to control the plate shape quality of products, so that technical requirements of different processing units after cold rolling are adapted, and the plate shape comprehensive technology optimization of the whole cold rolling production process is realized.
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Description

technical field

[0001] The invention relates to the technical field of steel rolling, in particular to an algorithm for determining the offset of a strip by using a contact-type shape roll. Background technique

[0002] In the actual production of steel rolling, the cold rolling production line has the characteristics of many rolling mill products and specifications, and many subsequent processing procedures of strip steel after rolling. The product varieties of cold rolling mills include automobile, high-strength, galvanized and other cold-rolled substrates, and its product specifications range from 0.3mm to 3.0mm. The product specifications of other cold rolling production lines mostly range from 0.3mm to 2.0mm. In addition, the post-processing methods of rolled strip steel in cold rolling line are more complete than other production lines, including bell furnace annealing, hot-dip galvanizing and chilled materials, etc. Therefore, how to ensure the strip shape of many p...

Examples

Embodiment Construction

[0035] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, an algorithm for determining the offset of the strip by using the contact shape roll is suitable for multi-stand 6-high or 4-high rolling mills, and has the function of intermediate roll shifting. At the same time, the shape roller is a contact type shape measuring roller, and the measuring roller is segmented.

[0037] Described method comprises the following steps:

[0038] An algorithm for determining strip offset using contact shape rolls, comprising the following steps:

[0039] Step 1. Determination of minimum radial force

[0040] Step 101, installing contact-type flat rolls at the outlet of the strip cold rolling mill;

[0041] In step 102, the radial force of multiple measurement points detected by the contact plate shape roller is smoothed, as shown in formula 1

[0042] f 平滑 (i) =...