Method for Determining the Optimum Counter-Flexing Force of Working Rolls during Sheet Rolling

Author:

Prysiazhnyi Andriy H.1,Kukhar Volodymyr V.1,Balalayeva E.Yu.1

Affiliation:

1. Pryazovskyi State Technical University

Abstract

The method of determination of the force of counter flexure of the working rolls was designed, ensuring improvement of the degree of flatness of cold rolled strips with due regard to the influence of unevenness of distribution of inter-rolls linear load. On the basis of the analysis of numerical realization of this method an essential influence of the width of the rolled strips upon the optimal value of the force of counter flexure was found out. Also, it was suggested to approximate the connection between increments of the force of counter flexure with linear equations, the application of which is promote to improvement efficiency of systems of automatic adjustment of shape and profile at rolling of sheets. For the condition of 4-stand cold rolling mill the values of transmission coefficients depending on widths of rolled strips were determined.

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics

Reference49 articles.

1. Ju.V. Konovalov, Spravochnik prokatchika, Reference book for rolling worker (in Russian), Teplotekhnik, Moscow, (2008).

2. E.A. Harber, Proizvodstvo prokata, Production of rolled products (in Russian), Teplotekhnik, Moscow, (2007).

3. M.Y. Huh, H.G. Kang and C.K. Kang, Effect of Roll Gap Geometry on the Evolution of Strain States and Textures during Asymmetrical Rolling in AA 1050, Solid State Phenomena. 116-117 (2006) 417-420.

4. O. Engler, M.-Y. Huh and C.N. Tome. Metallurgical and Materials Transactions A. 31A(9) (2000) 2299-2315.

5. Information on https://www.leonghuat.com/articles/hot&cold.htm.

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