Online accelerated cooling method with function of pre-straightening

Online accelerated cooling method with function of pre-straightening

  • CN 102,284,522 A
  • Filed: 08/30/2011
  • Published: 12/21/2011
  • Est. Priority Date: 08/30/2011
  • Status: Active Application
First Claim
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1. online acceleration cooling method with pre-straightening is characterized in that:

  • for 3-6 rice a pre-straightening machine is being set apart from online accelerated cooling device inlet distance, pre-straightening is with to quicken cooling synchronous, and production stage is as follows;

    Step 1;

    the steel plate of the intact back of finish rolling thickness range 6~

    80mm is transported to the pre-straightening machine by transmission roller channel and carries out pre-straightening;

    Step 2;

    steel plate enters online accelerated cooling device and quickens cooling when carrying out pre-straightening, 700~

    950 ℃

    of steel billet temperatures are sprayed upper and lower cooler by ultra dense degree be quickly cooled to 450~

    700 ℃

    , and cooling velocity is controlled at 1-30 ℃

    /s;

    Step 3;

    cooled off the back steel plate and entered cooled powerful straightener and align.

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