Method of Constructing Rail Size Adjustment Model

Abstract

The invention relates to the field of rolled steel production, and discloses a method for building a steel rail specification adjusting quantity model; and the method is used for improving the controlprecision of steel rail specifications in the steel rail rolling process. The method comprises the following steps: firstly, the specification adjusting quantity in the steel rail rolling process iscalculated; then, a difference value between the same parameters in the rolling process of front and back steel rails in the roller non-change period is adopted as an independent variable to calculatea roller rolling reduction increment in the steel rail rolling process; the type of the rolling reduction increment meeting relative requirements and corresponding to the specification adjusting quantity is determined through relative analysis; according to the specification adjusting quantity and the corresponding rolling reduction increment type, a least squares multiple regression algorithm isapplied to build a specification adjusting quantity-rolling reduction increment model; and finally, the steel rail rolling adjustment is performed by using the built specification adjusting quantity-rolling reduction increment model. The method is suitable for the steel rail specification control.

Description

technical field [0001] The invention relates to the field of steel rolling production, in particular to a method for constructing a rail specification adjustment model. Background technique [0002] At present, there are still deficiencies in the control of the final specification accuracy of high-precision rails. The method of manual adjustment is adopted. The adjustment process and quality vary from person to person, and the dimensional accuracy of rail control also varies from person to person, resulting in large differences in adjustment between shifts and shifts. The quality difference between classes is large, which greatly affects the improvement of rail dimensional accuracy. [0003] The rail adjustment model used in steel rolling production has many related factors, large cross-effects between parameters, parameter accuracy and other problems, resulting in the phenomenon that the analysis results of equipment parameters and specification parameters are inconsistent ...

AI Technical Summary

Problems solved by technology

[0002] At present, there are still deficiencies in the control of the final specification accuracy of high-precision rails. The method of manual adjustment is adopted. The adjustment process and quality vary from person to person, and the dimensional accuracy of rail control also varies from person to person, resulting in large differences in adjustment between shifts and shifts. The quality difference between shifts is large, which greatly affects the improvement of rail dimensional accuracy

[0003] The rail adjustment model used in steel rolling production has many related factors, large cross-effects between parameters, and various problems such as parameter accuracy, resulting in the phenomenon that the analysis results of equipment parameters and specification parameters are inconsistent with the actual deformation rules and actual adjustment methods.

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