The method of online measuring technique from the thin sheet convexity have putted forward by the article based on high accuracy and stability,analyzed the installing error and synchronous accuracy from the axes of XYZ how to affect the convexity s accuracy.

The method of online measuring technique from the thin sheet convexity have putted forward by the article based on high accuracy and stability,and the principle have brought out,and then the experiment have carried out.

In order to build the high accuracy mathematic model of hot roll strip profile,the influence ratio calculation software is developed with influence coefficients method,based on the theory of strip profile′s calculation.

In order to build the high accuracy calculation mathematic model of hot rolled strip profile, the Influence Efficiency Calculation Software was developed by Gmethod for researching the regularity of effect of roll bending force on hot rolled strip profile.

?A calculation software was developed by Gmethod to examine the effect regularity of roll diameter on hot roll strip profile.

The coupling calculation of crown on hot strip rolling mill with metal and distortion model;

Study on Monitoring Tactic for the Plate Thickness and Crown of Cold Rolling Strip;

The three-dimensional plastic deformation of strip were analyzed by stream surface strip element method,the elastic deformations of rolls were analyzed by influence coefficient method,the analyzing and computing model of shape and crown of the strip rolled on 4-high CVC mill were established by combining them,and the rolling process of hot strip on 4-high CVC continuous mills was simulated.

Based on an analysis of shape control system of CVC hot strip rolling process in a certain stand mill,a strip shape control simulation software was developed according to actual technological process and applied to the off-line simulation of strip control complying with a certain rolling schedule and the result showed that the strip crown can be controlled in target zone.

In accordance with the problem that products produced by traditional hot strip mill have bad quality, this paper puted forward that the mill without control means for strip shape and strip crown can be transformed into workroll cross sliding type mill.

In this paper,parameter network is used to optimize the influence coefficient of strip crown on the base of measured data.

Meanwhile,the PMR and PWR roll contours have been developed,and the plate crown has been decreased 52%.

The predicted models of plate crown, the prediction and feedback models of plate shape are set up on the basis of Ben Cheng's elastic deformation theory by simplifying and discretizing the models.

The test method and results of controlling plate crown by dissymmetrically crossing rolls are introduced.