The Method of Eliminating the Tower Shape Defect of Steel Coil

Abstract

The invention discloses a method for eliminating steel coil tower-shaped defects. The method comprises the following steps: installing a set of camera monitoring device at a position close an uncoiling machine and transmitting monitoring signals to a monitoring television in a control room; sheathing a steel coil with the tower-shaped defects on a winding drum of the uncoiling machine, performing threading operation to the steel coil, and in the threading operation process and after the threading operation is completed, adjusting the axial movement of the winding drum of the uncoiling machine according to position change in the monitoring television of the edge of at least one side of the outmost circle of plate or strip of the unopened part of the steel coil displayed in the monitoring television, so as to keep the position displayed on the monitoring television of the edge of at least one side of the outmost circle of plate or strip of the unopened part of the steel coil to be unchanged; after the operation of an operation line is completed, obtaining the steel coil with the tower-shaped defects which are eliminated. According to the method for eliminating the steel coil tower-shaped defects provided by the invention, the tower-shaped defects of the steel coil can be accurately and effectively eliminated.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgical rolling. Specifically, the invention relates to an operation method for repairing steel coils with tower-shaped defects exceeding the standard by using a leveling and decoiling unit. Background technique [0002] In the production of hot continuous rolling plate and strip steel, the winding of the plate and strip steel on the coiler drum is ensured by the centering guide device of the plate and strip steel at the entrance of the coiler to ensure the neatness of the edge of the steel coil. However, due to the high rolling speed and large impact, it is easy to cause the steel coils to be difficult to be coiled in the initial few coils during the coiling process, resulting in tower-shaped defects in the rolled steel coils, and the steel coils with tower-shaped defects cannot meet high requirements. The standard market demand increases the production cost of the enterprise and affects the a...

AI Technical Summary

Problems solved by technology

However, the existing technology has the following deficiencies: (1) the existing technology cannot perform automatic deviation correction on the steel coil during the threading process; (2) the existing technology can automatically correct the steel coil after the belt threading operation is completed The accuracy of deviation correction is poor; (3) The existing technology has strict requirements on the height of the tower-shaped defect of the raw steel coil. The lateral movement distance of the take-up reel is between ±100mm. If the steel coil with tower-shaped defects has a tower-shaped height greater than 150mm, it is beyond the automatic correction range of the CPC system and the EPC system, and the existing technology cannot be used to correct the deviation. Steel coils are corrected, resulting in tower-shaped defects of finished steel coils that cannot be eliminated

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