SU1570808A1 - Continuous group of mill for producing thin strips - Google Patents

Abstract

The invention relates to rolling production, specifically to the structures of continuous strip mills, and can be used in the preparation of strips of thin and finest sizes. The purpose of the invention is to expand the technological capabilities of the mill by ensuring the rolling of rolled strip with simultaneous plastic bending and reverse rolling mode in an irreversible stand by changing the level of rolling in one and (or) two cages. The mill group consists of an eight-roll stand 1 and a twelve-stand stand 2. Reversible winders 3 are installed on both sides of the group, and wired roller tables 4 are installed between the stands and winders and in the interstand gap, the strips between the working rolls of stands 1 and 2 and (or ) between the work rolls and the adjacent support rolls of the first row. The invention allows to intensify the mode of crimping of riveted strips due to plastic bending, and carrying out reverse rolling in an irreversible eight-roll stand helps reduce capital costs due to cheaper drive. 1 hp f-ly, 1 ill.

Description

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The invention relates to rolling production, namely, designs of continuous strip mills, can be used in the preparation of strips of thin and finest sizes. The purpose of the invention is the expansion of the technological capabilities of the mill by ensuring the reduction of rolled strip lines with simultaneous plastic bending and reverse rolling mode in an irreversible stand by changing the level of rolling in one and (or) in two cages.

The drawing shows a diagram of the proposed mill, where two stands are shown, but it is possible to have a continuous group consisting of non-reversing quarto stands, where the finishing stand ends, for example, with a reverse octal-roll stand.

In a mill consisting of two multi-roll stands located between two reversing coilers, the strips are compressed in two horizons: the first horizon between the work rolls, the second horizon between the work roll and the support rolls of the first row; combined rolling in stands with different horizons20

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In one stand, the deformation zone is organized between the work rolls, and in the other - between the work roll and the first support rolls adjacent to it.

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Claims (1)

1. Continuous mill group for the production of thin strips, containing two working stands with two sets of rolls installed between two reversing winders, of which the shaft The mill group consists of non-reversible-35 KOV11 sets in one stand have stand 1 with an eight-roll set and reversing stand 2 with a twelve bar, a new set. Reversing winders 3 are installed in front of the cage 1 and behind the cage 2, and conductor roller tables 4 are mounted in the interstand gap, as well as between the booths 2 and the winders 3, ensuring the task of the strip from the winders 3 to the different rolls and working 6 and adjacent supporting rollers 7 of the first rolling mill 1, as well as between the working rollers 8 and 9 and the working roller 9 and adjacent supporting rollers 10 of the first row for stand 2. The camp works as follows. The strip 11 with the winder 3 is fed into the first non-reversing stand 1 and is pressed between the work rolls 5 and 6, after which the strip enters the second stand 2 on the wiring table 4 and 40 45 50 55 reversing drive, and between roller cages and coilers, wire roller tables are installed, characterized in that, in order to expand the technological capabilities of the mill by ensuring rolling stripes with simultaneous plastic bending and reversing rolling mode in a non-reversing cage by changing the rolling level in the one and (or) two cages, in the cages, multi-roll sets with support rolls of at least one row are used, and the wiring tables are designed to systematic way ra bochimi bands between each set of rolls and between work rolls and adjacent thereto support rolls of the first row, 2, the continuous group according to claim 1, characterized in that the roll sets in the cages are made of eight-roll and twelve-stem five e 0 0 crimped between the rollers 9 and the supporting rollers 10 adjacent to them (the second rolling horizon), in this hotbed deformation of the strip is carried out with plastic bending, after which it winds onto the winder 3 installed behind the cage 2. Since stand 2 has a reversing drive, the next pass can be made both between rolls 8 and 9, and between rolls 9 and 10, but the subsequent pass is in stand 1, since it has an irreversive drive, the strip is set to the lower rolling horizon between rolls 6 and 7 and at the exit of the cage 1, the strip is wound onto a winder. Carrying off strip reduction in conjunction with plastic bending allows to intensify the rolling process by reducing the number of anneals between the aisles, since plastic bending helps to remove the work hardening, and the implementation of the reverse rolling mode on a two-stand mill with one non-reversing stand helps to reduce costs by saving means installed for stand 1 a cheaper drive. Invention Formula 1. Continuous mill group for the production of thin strips, containing two working stands with roll sets installed between two reversing coilers, of which the shaft 5 KOV11 sets in one stand have 0 five 0 five Wiring roller tables are installed between the cages and coilers and in the roll mill spacing, characterized in that, in order to expand the technological capabilities of the mill by ensuring rolling stripes with simultaneous plastic bending and reversing rolling mode in an irreversive cage by changing the rolling level in one and (or) two cages, in cages multi-roll sets with support rolls of at least one row are used, and wiring tables are made with the possibility the directions of the strips between the work rolls of each set and between the work rolls and adjacent one-up rolls of the first row, 2, the continuous group according to claim 1, characterized in that the roll sets in the cages are eight-roll and twelve-roll.