Grinding and using method for preventing rough rolling work roll from slipping
A work roll and grinding technology, which is applied in the field of metallurgy, can solve problems such as rough rolling of work rolls, and achieve the effects of reducing the unit consumption of rolls, saving production costs, and reducing the amount of grinding
Active Publication Date: 2022-07-19
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0007] In view of the above-mentioned defects existing in the prior art, the purpose of the present invention is to provide a grinding and using method for preventing rough rolling work rolls from slipping, which solves the problems of rough rolling work rolls and strip steel slipping that are commonly faced by domestic and foreign hot strip mills. question
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[0030] After the rough rolling work roll is rolled to 30,000 tons on the upper machine, it is replaced and the lower machine is replaced. The paired new rolls replaced are the upper rolls which are partially ground rolls, and the lower rolls are completely ground new rolls.
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The invention discloses a grinding and using method for preventing rough rolling work rolls from slipping. If not, the roll is fully ground; the number of times of use of the roll after partial grinding is not more than 2 times, if it is, the partial grinding is carried out; , the partial grinding is performed, if not, the full grinding of the roll is performed. The invention solves the problem of slippage of rough rolling work rolls and strip steel, which are faced by hot tandem rolling mills both at home and abroad.
Description
technical field [0001] The invention relates to the control technology of steel rough rolling in the metallurgical field, and more particularly, to a grinding and using method for preventing the slippage of rough rolling work rolls. Background technique [0002] The reversible rack for hot continuous rolling and rough rolling is mainly responsible for the task of slab thinning. The frame of the same type of production line in China has the problem of slippage between the strip and the work roll to varying degrees, especially when the high-speed steel work roll material is used, the slippage problem is more serious. Slip occurs after the new rollers are machined until the oxide film is completely roughened. The strip slips in the stand, and the risk of scrap is high. The roughing mill exit plate shape is poor, S-shape and sickle bends appear, and the temperature uniformity in the whole length and width directions deteriorates, which is easy to cause finishing rolling scrap. ...
Claims
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IPC IPC(8): B21B28/02
CPCB21B28/02
Inventor 汪长安陈建荣张仁其杨晓臻梁兴国杨军孙立为
Owner BAOSHAN IRON & STEEL CO LTD