Detection and evaluation mechanism of cold rolling strip edge shape

Abstract

The edge shape problem of strip has great influence on the shape control precision, so it is extremely necessary to establish the high-precision strip edge shape model. Based on the theoretical analysis and the practical engineering, a new high-precision shape detection model, which consists of wide channels in the middle of detection roll and narrow channels on both sides, is established to analyse the problem of strip edge shape. Instance data showed that the strip lateral thickness difference was directly related with the shape state of strip, and the strip edge coverage rate and the strip deviation amount had important influences on the shape detection precision, the pattern recognition accuracy and the shape control effect, so the strip edge shape model has become one of the key factors to improve industrial application effect of the shape closed-loop control system in the present situation.

Quick Recognition and Elimination of an Additional Signal Caused by Deflection of an Integral Roller Flatness Meter

“…Haimiao Wu et al [22][23][24] analysed the temperature field of the integral detection roller and derived a sensor reliability evaluation model. Yang Lipo et al 25,26) established the cold-rolled strip online dynamic wrapping angle compensation model and a high-precision flatness detection model which consists of wide channels in the middle of a detection roller and narrow channels on both sides to analyse the problem of flatness detection errors. Bingqiang Yu et al 27) analysed the influences of the measuring error of the strip edges, the transverse temperature difference of the strip, the deflection of the flatness detection roller, and the shape of the strip coil on the flatness measuring results in detail, and established the corresponding compensation models.…”

Plate profile control during ultra-thin strip rolling utilizing work roll edge contact

“…Based on the elastic cantilever beam and the influence function methods, Guan [9] studied the influences of the work roll contact on the cross-sectional shape of the strip and the contact pressure between rolls. Yang [10] proposed a new shape detection model based on the theoretical analysis, which consisted of wide channels in the middle of detection roll and narrow channels on both sides. Li [11] studied the relationship between work roll edge contact and edge drop in the silicon strip cold rolling, which provided theoretical guidance for the production of silicon strip.…”