Environment-friendly and economical zinc-aluminum-magnesium plated steel sheet and method for manufacturing the same

CN115555404BActive Publication Date: 2026-05-29МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД
Filing Date
2022-09-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing zinc-aluminum-magnesium coated steel sheet manufacturing process is complex, has poor environmental protection and economic efficiency, and the pickling process causes environmental pollution.

Method used

By optimizing the hot rolling process to control the structure and thickness of iron oxide scale, omitting pickling and cold continuous rolling processes, and adopting processes such as high-pressure water descaling, multi-pass cooling, wet straightening and induction heating, the removal of iron oxide scale and coating quality are controlled. Environmentally friendly organic acids and corrosion inhibitors are used to optimize the hot-dip galvanizing process.

Benefits of technology

It has enabled the production of environmentally friendly and economical zinc-aluminum-magnesium coated steel sheets, which have good surface quality and coating adhesion, reduce carbon emissions and production costs, and meet the requirements of different applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an environment-friendly and economical zinc-aluminum-magnesium plated steel sheet and a manufacturing method thereof. The thickness and structure of the iron oxide skin are controlled through heating, cooling and other process controls in a hot rolling process to obtain good hot rolling base material quality. Then, a kind of environment-friendly and economical zinc-aluminum-magnesium plated steel sheet is obtained through process controls such as straightening, heating and hot plating, thereby solving the problems of poor environmental protection and high cost of the existing zinc-aluminum-magnesium plated products. Moreover, the zinc-aluminum-magnesium plated product prepared by the method has good surface quality and adhesion, has remarkable environmental protection and economy, and can meet the requirements of different uses.
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Citation Information

Patent Citations

  • Hot-rolled substrate continuous hot galvanizing productive technology

    CN101255541A

  • Production method of hot-rolling, pickling-free, direct-cold-rolling and reduction annealing hot-dip product

    CN105297033A

  • Hot-based galvanized steel coil and preparation method thereof

    CN112281079A

  • Method for improving surface quality of hot-based galvanized strip steel

    CN113136537A

  • Steel plate and galvanizing steel plate, and preparation method thereof

    CN103045833A