A Tower-shaped Restoration Method of Chilled Coiled Plates for Strapping Raw Materials

Abstract

The invention provides a tower-shaped repairing mode of cold hard rolled plates for bundling strip raw materials. The mode comprises the steps that a hard wooden stick is prepared, one end of the wooden stick is of a flat structure, and the flat end of the hard wooden stick is inserted into a tower-shaped staggered ring in the direction perpendicular to the radial direction of a steel coil; the wooden stick surrounds the circumferential direction of the steel coil, and the wooden stick is rotated and moved in the direction reverse to the coiling direction of the steel coil till the wooden stick is moved out of the head of a steel strip; and after the wooden stick is moved out, the tower-shaped steel coil is slightly pushed into by hand, and then the repairing work of the tower-shaped steelcoil is completed. According to the tower-shaped repairing mode, a worker can use a simple tool for better repairing the tower-shaped steel coil of the cold hard rolled plates for the bundling stripraw materials. Not only is the delivery date of downstream customers guaranteed, but also machining and using of a next procedure are not affected, and meanwhile the yield and finished product rate ofacid-rolling production line products are increased. The situation that the steel coil is judged to be waste due to tower shape degrading is avoided; and meanwhile, cost decreasing and benefit increasing are achieved, and the profit space is enlarged for a steel plant.

Description

technical field [0001] The invention relates to a means for repairing chilled coiled plates for strapping raw materials, in particular to a tower-shaped repair process for chilled coiled plates for strapping raw materials. Background technique [0002] Steel straps (referred to as straps, also known as steel straps for packaging), usually refer to steel straps used for industrial packaging, and are widely used in industrial fields such as steel, non-ferrous metals, papermaking, glass, building materials, tobacco, and textile processing. . Strapping raw materials refer to steel strapping without heat treatment and surface treatment. At present, my country's iron and steel industry is the industry that uses the most strapping products and has the highest load safety rating. It is mainly used for steel rolling and finished product packaging units in steel manufacturing. [0003] Strapping raw materials can be completed through acid rolling and hardening, and are supplied to d...

AI Technical Summary

Problems solved by technology

However, in the process of steel mills completing the process of forming strapping raw materials by acid rolling, due to the high content of smelting component C and high strength of the strapping raw materials, some steel coils will have a tower shape during the process of coiling and off-line.

The tower-shaped steel coil cannot be used for normal packaging and shipping, so it is downgraded and scrapped

The phenomenon of downgrading and rejecting due to the tower shape will greatly affect the yield and qualification rate of cold-rolled products in steel mills, while increasing production costs and delaying the delivery cycle

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