Methods for determining tension modes and methods for coiling steel plates

By calculating the apparent elastic modulus of the coil in the radial direction to determine the tension mode and control the internal stress state of the coil, the problems of knotting and crushing during the winding of steel sheets are solved, and the yield is improved.

CN115551653BActive Publication Date: 2026-07-03JFE STEEL CORP
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Patent Information

Application Number
CN202180035064.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-05-19
Filing Date
2021-05-19
Publication Date
2026-07-03
Estimated Expiration
2041-05-19

AI Technical Summary

Technical Problem

Existing technologies often result in knots and crushing during steel sheet winding, and these problems are difficult to effectively resolve when the steel sheet's properties change.

Method used

By using the apparent elastic modulus of the coil radial direction to calculate the tension mode, the internal stress state of the coil after winding is controlled to prevent knotting and crushing.

Benefits of technology

It effectively prevents knotting and crushing during the winding process under different steel plate properties, thereby improving the yield of finished products and intermediate materials.

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Abstract

This invention relates to a method for determining a tension pattern and a method for winding a steel sheet. It provides a method that prevents at least one or both of knotting and crushing of a steel sheet wound into a coil shape, regardless of the properties of the steel sheet. The method determines the tension pattern applied to the steel sheet for winding it into a coil shape, characterized in that the tension pattern is calculated using the radial apparent modulus of elasticity of the coil.
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Citation Information

Patent Citations

  • Box annealing method for grain oriented silicon steel sheet coil

    JP1987070523A

  • Production of light-gage grain oriented silicon steel sheet

    JP1988140035A

  • Method for coiling steel sheet

    JP1994071337A

  • Method of manufacturing web roll, method of winding web roll and method of calculating internal stress

    CN103287895A

  • Winding method for web

    JP1988288856A