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Method for compensating coiling tension of medium-width steel belt formed by cold continuous rolling

A technology for coiling tension and compensation methods, applied in tension/pressure control, metal rolling, metal rolling, etc., can solve problems affecting production rhythm and product quality, save online processing time, be easy to implement, improve The effect of production efficiency

Active Publication Date: 2012-05-23
唐山建龙简舟钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the production process of cold continuous rolling medium and wide steel strips, there are often problems such as the tower shape in the coiling process, and the inner ring 1 / 4 coil tower shape in the process of flat uncoiling after bell annealing, which seriously affects the production rhythm and product quality, resulting in greater economic losses

Method used

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  • Method for compensating coiling tension of medium-width steel belt formed by cold continuous rolling
  • Method for compensating coiling tension of medium-width steel belt formed by cold continuous rolling
  • Method for compensating coiling tension of medium-width steel belt formed by cold continuous rolling

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Embodiment Construction

[0019] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0020] Refer to attached figure 1 , in an embodiment, after the rolled steel strip 2 on the uncoiler 1 passes through 1# frame 3, 2# frame 4, 3# frame 5, and 4# frame 6, it is coiled by the coiler 7 .

[0021] Refer to attached figure 2 , the present invention is divided into three grades according to the thickness of the steel strip at the exit of the rolling mill, the first grade is the thickness h0.80mm; it is determined according to the thickness grade δ 1 ,δ 2 、D 1 、D 2 Tension compensation parameters, establish a database of tension compensation parameters.

[0022] The automatic realization of the present invention is that the corresponding PLC writing control program of rolling mill coiler reaches T 1 , T 2 , T 3 Calculation, output and control. Set tension T S The initial value of is imported from the model calculation valu...

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Abstract

The invention relates to a method for compensating coiling tension of cold rolling production, in particular to a method for adjusting the coiling tension of once-formed thin cold-rolled medium-width strip steel conventionally rolled by medium-width cold continuous rolling, which belongs to the technical field of automatic control of a cold rolling process. The technical scheme is that a tension compensation parameter database is established by dividing the thicknesses of outlet strip steel of a rolling machine. A coiling tension compensation function finishes T1, T2 and T3 calculation, output and control by adopting PLC basic control to realize three sections of quality compensations in the rolling process. The method has the advantages that: aiming at the defects of the coiling tension compensation function of conventional rolling of the cold continuous rolling, three sections of automatic compensations of the coiling tension are developed to overcome the problems that products haveturriforms, scrapes and the like in the production process; and experiments show that the probability of generating the turriforms and the scrapes is 0.02 percent in the conventional rolling process and the leveling and uncoiling process of the cold continuous rolling, and simultaneously, the online processing time of turriform coils can be saved, the production efficiency can be improved, the effect is significant, and the effect is more obvious when the method is used in the production of textured steel belts. The method almost has no improvement expenses, is easy to implement, and has promotion values.

Description

technical field [0001] The invention relates to a method for compensating coiling tension in cold rolling production, in particular to the coiling tension adjustment of wide-band steel in conventional rolling thin-profile cold rolling in one-time forming medium-width continuous rolling, and belongs to the technical field of cold-rolling process automation control. Background technique [0002] The cold tandem rolling mill has developed to the present, with mature technology, advanced technology and automatic control level at the highest level in the metallurgical industry. It is very advanced in terms of process thinking and software control. At present, ABB and Siemens are in the forefront. In terms of coiling in endless cold rolling mills, because its aspect ratio is usually > 0.45, its coiling tension control is uniform. One-stage compensation control can solve problems such as tower shape and scratches in the rolling process. Contents of the invention [0003] Howe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/48B21B37/20
Inventor 伍永锐孟丽谭长江
Owner 唐山建龙简舟钢铁有限公司
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