Rolling method used for rolling strip steel of reversible mill
A rolling mill and strip technology, which is applied in the rolling field of strip steel in reversible rolling mills, can solve the problems of over-thick strip thickness, ultra-thin strip thickness, and reduce the yield of strip steel, so as to shorten the out-of-tolerance length. , The effect of improving product yield and improving control accuracy
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[0022] Example 1:
[0023] The first step is to turn off the automatic control function of the strip thickness of the reversible rolling mill after the strip threading is completed, start the reversible rolling mill, roll at a speed of 12m / min, manually adjust the reduction, and control the strip thickness deviation after rolling. Within the range of 0~2.5%.
[0024] In the second step, when the accuracy of manually adjusting the strip thickness is within the range of 0 to 2.5%, the automatic control function of the strip thickness of the reversible rolling mill is turned on to accelerate the rolling speed of the reversible rolling mill to the normal rolling speed of 600m / min. The thickness deviation of the back strip is controlled within ±1%.
[0025] The length of the thickness-overdue section of the same type of non-oriented electrical steel before and after the method of the present invention is used is shown in Table 1 below.
[0026] Table 1
[0027]
Example Embodiment
[0028] Example 2:
[0029] The first step is to turn off the automatic control function of the strip thickness of the reversible rolling mill after the strip is threaded, start the reversible rolling mill, and roll at a speed of 12m / min. Manually adjust the rolling mill to control the thickness deviation of the strip after rolling. In the range of -1.5 to 3%.
[0030] In the second step, when the accuracy of manually adjusting the strip thickness is within the range of -1.5 to 3%, turn on the automatic control function of the strip thickness of the reversible rolling mill to accelerate the rolling speed of the reversible rolling mill to the normal rolling speed of 800m / min, and the rolling mill will roll The strip thickness deviation is controlled within ±1%.
[0031] The length of the thickness-overdue section of the same type of non-oriented electrical steel before and after the method of the present invention is used is shown in Table 2 below.
[0032] Table 2
[0033]
[0034] It ...
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