Method of preventing steel coil tensile steel for hot rolled strip
A technology of hot continuous rolling and strip steel, applied in the field of metallurgy, can solve the problems of increasing the overall width deviation of strip steel, increasing the processing cost of users, reducing the yield of finished products, etc., to achieve the effect of ensuring uniformity and avoiding steel drawing defects
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[0033] Specific embodiment 1: Strip steel variety SPHC, specification 3.0×1260mm, secondary model set tension 18KN / mm 2 ;
[0034] After adopting the patent of the present invention, the first stage: the stage of coiling and building, the actual coiling tension is 60% of the tension set by the secondary model, that is, 18×60%=10.8KN / mm 2 ;
[0035] The second stage: After the coiling is normal and the tension is established, the actual coiling tension is restored to the tension set by the secondary model, which is 18KN / mm 2 .
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