SU1496851A1 - Set of rolls - Google Patents

Abstract

The invention relates to rolling production and can be applied to broadband hot and cold rolling mills with axial movement of the rolls. In order to obtain rolled symmetric and lenticular shape, as well as to eliminate local thickening of rolled products in areas of increased wear of the work rolls, the barrels of the work roll are made along a concave parabola that is asymmetrical relative to the vertical axis of the roll barrel, vertical axis of the roll barrel. In this case, the asymmetrical sections of the support barrels, as well as the work rolls, are oriented in opposite directions. 1 il.

Description

The invention relates to rolling production and can be applied to broadband hot and cold rolling mills with axial movement of work rolls.

The purpose of the invention is to obtain rolled products of various widths, symmetrical and lenticular shape, without local thickenings along the edges of the strip in rolls with one profile.

The drawing shows a roller set.

The kit consists of two support and two work rolls. The initial profiling - the upper 1 and lower 2 back-up rolls are made along the tight parabola, asymmetrical about the vertical axis, and the initial profiling of the upper 3 and lower 4 are pa.

barrel rolls are made on a concave parabola, asymmetrical relative to the vertical axis of the roll barrel.

The asymmetry of the supporting and working rolls forming the barrels is oriented in opposite directions.

The roll set works in the following way.

When filling work rolls, when ontazhe hire (metal party, rolled between transfers of work rolls of the finishing group), which are commenced, starting from a wide strip with a transition to a narrower one, the work rolls are in the maximum shifted position. As the strips pass, the work rolls are moved apart to remove the roll zone, worn by the edges of the strips, from contact with

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klday stripe. And so to the maximum possible spread position of the rolls at the narrowest strip at the end of the installation of the rolled metal. The number of rolled strips in the installation increases until the rolled thickness difference is unacceptable or a strip shape violation occurs, exceeding the permissible technical requirements for flatness.

The roller set, shaped according to the proposed scheme, will ensure stable and reliable regulation of the profile of groomed strips of different widths by means of the axial mobility of the rolls and will ensure more uniform wear of the working and support rolls, which will reduce the number of rolls and reduce the downtime of Formula I. goiter shadow

The roll set contains profiled work rolls and asymmetrical relative to the vertical axes of the drums, oriented in opposite directions with the possibility of their axial movement, which is characterized by the fact that, in order to get rolled, a symmetrical and two-sided round form without. local thickenings along the edges, forming the barrels of the work roll are made along a concave parabola, and forming the barrels of the support roll along a convex parabola.

Axle hire

Claims (1)

Claim A roll set containing profiled work and backup rolls asymmetric with respect to the vertical axes of the barrels, oriented in opposite directions with the possibility of their axial movement, characterized in that, in order to obtain a symmetrical and bilateral convex shape without. of local thickenings along the edges, the barrels forming the working roll are made on a concave parabola, and the barrels forming the backing roll on the convex вып