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US 12,440,880 B2Granted
Method of determining tension pattern and method of coiling steel sheet
AssigneeJfe Steel Corporation
InventorsRyuichi Suehiro, Naoki Watanabe, Ryosuke Watanabe
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Abstract
Provided are methods that can prevent either or both of kinking and collapsing of a steel sheet coiled in coil form regardless of the characteristics of the steel sheet. A method of determining a tension pattern of tension applied to a steel sheet to coil the steel sheet in coil form comprises calculating the tension pattern using an apparent elastic modulus in a radial direction of a coil.
Claims11
A method of coiling a steel sheet, the method comprising:
- determining a tension pattern of tension applied to the steel sheet when coiling the steel sheet on a mandrel of a tension reel;
- and
- coiling the steel sheet on the mandrel of the tension reel according to the determined tension pattern to achieve a coil, wherein
- the determining the tension pattern comprises calculating a stress distribution in the coil after removal from the mandrel using an apparent elastic modulus in a radial direction of a coil comprising steel sheet layers and an air layer present therebetween, the apparent elastic modulus being obtained through actual measurement.
1 more element
Dependencies are inferred from the claim text.