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Optimized presetting method for steel strip-flattening technological parameter

A technology of process parameter optimization and process parameter, applied in the direction of contour control, etc., can solve the problems of unqualified flat strip steel plate shape, unstable production process, large randomness, etc., to improve mechanical properties, improve performance and plate shape quality, Eliminates the effect of yielding platforms

Active Publication Date: 2008-07-30
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
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Problems solved by technology

The above process mainly depends on the experience preset of the operating technicians, which is relatively random and may easily cause problems such as unqualified flat strip shape and unstable production process.

Method used

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  • Optimized presetting method for steel strip-flattening technological parameter
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  • Optimized presetting method for steel strip-flattening technological parameter

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Embodiment Construction

[0055] The optimization preset method of strip steel leveling process parameter of the present invention is further described in detail as follows:

[0056] A. Determination of objective function for leveling process parameters optimization

[0057] According to the rolling theory, under certain conditions such as incoming strip steel, pass roll shape and roll surface shape, the pass elongation ε, pass speed V, entrance tension (back tension) T 0 and outlet tension (front tension) T 1 etc. determine the rolling pressure P, and when ε, V, T 0 , T 1 When P and P are constant, there must be an optimal bending force S (corresponding to the bending force with the most uniform transverse distribution of tensile stress at the exit of the strip), so that the exit shape of the strip is the best. Among them, the relationship between V and rolling pressure P is: the leveling speed affects the friction coefficient and deformation resistance of the leveling deformation zone, and then af...

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Abstract

The invention discloses an optimization presetting method with belt steel flattening processing parameter, which consists of optimization presetting object function of flattening processing parameter, constraint condition (range of value) of flattening processing parameter optimization, wherein rolling belt steel with the processing parameter which sets by the invention can improve belt steel mechanical property, which also improves the property of cold rolling flattening strip and slab-shaped quality.

Description

technical field [0001] The invention relates to a steel processing method, in particular to a method for optimizing and presetting technical parameters of strip steel smoothing. Background technique [0002] Leveling is to roll the strip steel after recrystallization annealing with a small amount of deformation (elongation is generally 0.2% to 3%) to eliminate the yield platform, control the shape of the strip, and obtain the required surface morphology. making process. Regardless of the traditional or modern cold rolling process, leveling is one of the essential production links. Since tempering is the last process to determine the shape and mechanical properties of the finished strip, it is of great significance to optimize the parameter setting of the tempering process and improve the shape control ability of the tempering machine for improving the quality of cold-rolled strip. [0003] The main process parameters that affect the quality of leveled products are: elongat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/28B21D1/02
Inventor 顾廷权熊斐
Owner BAOSHAN IRON & STEEL CO LTD
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