A method for controlling the layering of a thick-gauge pickled steel coil

By optimizing the winding tension, mechanical centering, and time compensation methods of the EPC centering device, the problem of misalignment in thick-gauge pickled steel coils has been solved, improving product quality and production efficiency. It is applicable to other push-pull pickling units.

CN116020899BActive Publication Date: 2026-07-14SD STEEL RIZHAO CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SD STEEL RIZHAO CO LTD
Filing Date
2023-02-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

During the hot rolling pickling process, thick-gauge pickled steel coils have the problem of mis-coiling, which leads to product quality and appearance defects and packaging difficulties, and causes bruising defects during secondary uncoiling.

Method used

By optimizing the winding tension, mechanical alignment method, and time compensation method of the EPC alignment device, specifically including setting the winding tension to (200+2.5*A+10*Rm)N, adopting forced mechanical alignment and correction 0.1 seconds in advance, and optimizing the alignment method of the 7-9# mechanical alignment device and the time compensation of the EPC alignment device.

Benefits of technology

It effectively controls the misalignment defect of thick pickled steel coils, reduces the overflow edge to within 50mm, improves the product appearance, avoids damage during secondary uncoiling, and requires no equipment modification, with low investment and strong applicability.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present application relates to the technical field of metallurgical strip steel coiling control, and specifically discloses a kind of thick gauge pickling steel coiling mislayering control method, 1) the coiling tension of strip steel thickness 8mm above, tensile strength 500MPa above steel coil is optimized;2) the centering mode of 7-9# mechanical centering device is optimized, from normally open to normally closed, forced mechanical centering is realized;3) time compensation mode is adopted to EPC centering device, deviation is corrected 0.1s in advance;The thick gauge pickling steel coiling mislayering control method designed by the present application controls the mislayering defect of thick gauge high-strength steel, and the overflow edge is reduced from 150mm to within 50mm;Product appearance is greatly improved, and the bruising defect during secondary unwinding of product is solved;Method is simple and efficient, and does not need to transform equipment, greatly reduces fixed investment;The control logic of the method is clear and easy to realize, and has strong applicability, and can be applied to other push-pull pickling units.
Need to check novelty before this filing date? Find Prior Art