Asymmetric self-compensating rolling working roll applicable to short-stroke roll shifting and implementation method thereof

Abstract

The invention discloses an asymmetric self-compensating rolling working roll applicable to short-stroke roll shifting and an implementation method thereof. The working roll comprises a convexity adjusting section, an abrasion control section and a structural process section which are connected in sequence, wherein all roll shape sections are respectively positioned at the transmission side and theoperation side of a rolling mill; an upper working roll and a lower working roll respectively shift towards the middle of the rolling mill every time when a roll of strip steel is rolled; and a unidirectional aperiodic roll shifting strategy is adopted. The roll shape and the roll shifting strategy of the working roll are designed according to the width of the rolled strip steel; the asymmetry ofthe roll shape and the roll shifting can be utilized; the abrasion form of the working roll is effectively changed; multiple control on uneven deformation convexity, edge drop and uneven abrasion isachieved; the shape of a bearing roll gap is improved; the effective regulation and control on the roll bending force is guaranteed; the rolling unit is expanded; and the strip steel plate shape control capability is improved. The requirement for free regulation rolling plate shape control under the conditions of wide strip steel hot rolling short-stroke roll shifting machine type and rolling unitexpansion can be met.

Description

technical field [0001] The invention relates to the technical field of mechanical rolling mills, in particular to an asymmetrical self-compensating rolling work roll suitable for short-stroke roll shifting and a method for realizing the same. Background technique [0002] Shape is one of the main quality indicators in the rolling process of hot-rolled strips, and the essence of shape control is to control the shape of the load-bearing roll gap. Through the specially designed roll shape, the crown of the roll gap can be changed with the change of the roll shifting. This technology is called the variable crown shape control technology. At present, the variable crown shape control technology is widely used in the field of shape control, including CVC roll shape and k-WRS models. [0003] The most prominent feature of the variable crown shape control technology is that it can continuously change the crown of the roll gap, and a set of rolls can meet the crown requirements of di...

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Problems solved by technology

[0005] The invention provides a work roll suitable for short-stroke roll shifting asymmetric self-compensation rolling and its realization method to solve

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