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Method for setting cold-rolled strip steel target plate-shaped curve as well as computer equipment

A target curve and cold-rolled strip technology, which is applied in the field of strip rolling, can solve problems such as unsatisfactory shape quality, and achieve the effects of improving subsequent shape quality, setting rationally, and improving accuracy

Active Publication Date: 2019-08-16
CISDI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a technical solution for setting the target flatness curve, which is used to solve the problem of unreasonable flatness quality in the prior art caused by the unreasonable setting of the target flatness curve. ideal question

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  • Method for setting cold-rolled strip steel target plate-shaped curve as well as computer equipment
  • Method for setting cold-rolled strip steel target plate-shaped curve as well as computer equipment
  • Method for setting cold-rolled strip steel target plate-shaped curve as well as computer equipment

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Embodiment Construction

[0060] As mentioned above in the background technology, in order to obtain high-quality cold-rolled plate and strip products, modern cold-rolled production enterprises have widely adopted advanced flatness feedback control systems. Such as figure 1 Shown is a six-high cold rolling mill equipped with a flatness feedback control system, which can be a single-stand reversing six-high cold rolling mill or the last stand of a tandem cold rolling mill including a combined pickling mill. Among them, 1 is strip steel, 2, 3, and 4 are work rolls, intermediate rolls, and backup rolls, respectively, one upper and lower, and the shape roll 5 at the exit of the rolling mill measures the real-time signal a of the shape distribution and sets the target shape The target flatness curve b output by computer 6 is compared, and the obtained flatness deviation distribution is sent to flatness control computer 7. After being processed by a certain mathematical model and control algorithm, flatness ...

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Abstract

The invention provides a method for setting a cold-rolled strip steel target plate-shaped curve as well as computer equipment. The method for setting the cold-rolled strip steel target plate-shaped curve comprises the following steps: establishing a target plate-shaped curve model; acquiring a target plate-shaped curve of strip steel according to the actually measured parameter of the strip steeland the downstream processing process; and according to the internal stress balance condition, determining target plate-shaped distribution for plate-shaped feedback control. A plurality of referencetarget plate-shaped curves are provided through the target plate-shaped curve model, the conditions of different downstream processing processes, steel types, width and thickness strip steel rolling can be adapted, the subsequent plate-shaped quality is improved, pre-given curve coefficient is stored in a database, and fully-automatic setting is realized; a temperature compensation curve and a winding tension compensation curve are determined by combining the on-site actually measured data, real-time dynamic compensation is conducted and the compensation accuracy is improved; and the target plate-shaped distribution is determined through the internal stress balance condition and guarantee is provided for obtaining the ideal target physical plate-shaped quality.

Description

technical field [0001] The invention relates to the technical field of strip rolling, in particular to a method and computer equipment for setting a target shape curve of cold-rolled strip steel. Background technique [0002] With the high-quality development of my country's economy, industries such as automobiles, household appliances, electronics, military industry and aerospace have put forward more and more stringent requirements on the shape quality of cold-rolled strips, such as steel sheets for automobiles and tin-plated steel sheets , Generally, the flatness is required to be around 5IU, and the electrical steel plate requires the flatness to be within 3IU. With the improvement of the strength of the cold-rolled strip and the further thinning of the thickness, the shape problem has become the main problem in the production process of the cold-rolled strip. [0003] The target shape curve is essentially the distribution curve of the internal residual stress of the rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28
CPCB21B37/28
Inventor 梁勋国
Owner CISDI RES & DEV CO LTD
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