Flatness of a rolled strip

  • US 10,130,979 B2
  • Filed: 01/02/2018
  • Issued: 11/20/2018
  • Est. Priority Date: 03/11/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method of improving flatness in rolled metal, including:

  • heating a strip;

    selectively cooling the strip to induce a non-homogenous temperature gradient in the strip across a width of the strip, wherein selectively cooling the strip includes distributing a cooling agent to the strip through at least one nozzle of a cooling unit; and

    maintaining the non-homogenous temperature gradient in the strip for an amount of time sufficient to allow the strip to yield under the non-homogenous temperature gradient, wherein maintaining the non-homogenous temperature gradient includes keeping the strip from contacting additional equipment capable of equalizing tension or temperature across the width of the strip for the amount of time,discontinuing the distribution of the cooling agent and thereafter allowing the non-homogenous temperature gradient to eventually equalize without contacting the additional equipment capable of equalizing the tension or temperature across the width of the strip such that any changes due to yield remains in the strip.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×