Rolling equipment and rolling method

Abstract

Rolling equipment comprises a rolling mill and an adjusting roller set. The rolling mill adopts a rolling scheme of working rollers with unequal diameters, so that the thinning of foil is generally facilitated, and a better plate shape is also favorably obtained; and the rolling mill adopts an asymmetric roller system, so that the number of rollers is reduced, the precision of the roller system is favorably improved, and the rollers are convenient to adjust and maintain. The adjusting roller set adopts oil blocking rollers and flattening rollers which are unequal in diameter, the flattening function and the oil blocking function are both considered, the oil blocking rollers with the smaller roller diameter are beneficial to squeezing away redundant lubricating oil, and the flattening rollers with the larger roller diameter are beneficial to reducing the original defects of the foil. According to the rolling method, the height of the flattening rollers is adjusted, the foil is wrapped on the roller surface of the working roller with the larger roller diameter to form a wrapping arc, and tension is evenly distributed on the cross section of the foil through back supporting of the working roller on the foil; and the defects are eliminated in the key forming initial stage of rolling, and the plate shape is stabilized in the later stage of rolling forming, so that high-precision rolling of the wide foil is achieved.

Description

technical field [0001] The invention relates to the technical field of rolling mills, in particular to rolling equipment and a rolling method for high-precision rolling of wide-width foils. Background technique [0002] With the advancement of the technology industry, the market demand for high-precision wide-width foils is becoming more and more urgent. Under the current technical background, the rolling technology for wide-width and thick foils is basically mature, but there are still many technical obstacles in the rolling technology of high-precision wide-width foils. For thicker foils, even if there are shape defects after rolling, the shape can still be corrected by tension leveling or other flattening means. For foils, especially those with extremely small thickness, due to the lack of subsequent The means of shape correction can only be controlled by rolling. Especially for foils with high deformation resistance such as copper, copper alloys, and stainless steel, i...

AI Technical Summary

Problems solved by technology

[0005] The diameter of the work roll has an impact on the rolling of the foil. The smaller the diameter of the work roll, the more conducive to the thinning of the foil, but it also brings Here comes the problem: as shown in Figure 2, in the figure The small-diameter work roll on the left has a small diameter and low rigidity, a large bite angle to the foil 3, and a large lateral component of the rolling force, so it has a large lateral bending tendency

From the above, it can be seen that the multi-roll system structure of the current rolling mill has an impact on the accuracy of the roll system, the equal-diameter work rolls and equal-diameter adjustment rolls of the current rolling mill have an impact on the lubrication conditions, and the current rolling mill has an impact on the rolling of foils. Tension accuracy has affected, these are the technical bottlenecks currently restricting the development of foil rolling in the direction of high precision and wide width

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