A hot-dip galvanized steel sheet with excellent bonding performance and preparation method thereof

A hot-dip galvanized steel sheet, performance technology, applied in the field of hot-dip galvanized steel sheet and its preparation, can solve the problems of poor bonding characteristics of hot-dip galvanized steel sheet, separation of adhesive layer and galvanized layer, etc., and achieve excellent bonding compatibility, Excellent bonding performance and convenient production

Active Publication Date: 2021-12-21
SHOUGANG CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existence of aluminum and magnesium elements in the hot-dip galvanized steel sheet results in poor bonding properties of the hot-dip galvan

Method used

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  • A hot-dip galvanized steel sheet with excellent bonding performance and preparation method thereof
  • A hot-dip galvanized steel sheet with excellent bonding performance and preparation method thereof
  • A hot-dip galvanized steel sheet with excellent bonding performance and preparation method thereof

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be presented more clearly. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.

[0028] Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence.

[0029] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0030] In o...

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Abstract

The invention relates to a hot-dip galvanized steel sheet with excellent bonding performance and a preparation method thereof, belonging to the field of coating technology. The invention provides a hot-dip galvanized steel sheet with excellent bonding performance. The outer surface includes in turn: a steel substrate, a coating and an oxide film layer; the coating is a surface-treated coating, and the surface treatment includes surface grain refinement and/or surface roughening; the refined surface grain The size is ≤400um, and the depth of pits on the roughened surface is 100nm-5um, which has excellent bonding performance.

Description

technical field [0001] The invention belongs to the technical field of coating, and in particular relates to a hot-dip galvanized steel sheet with excellent bonding performance and a preparation method thereof. Background technique [0002] In order to improve corrosion resistance, hot-dip galvanized steel sheets are widely used, and the most important application fields are for the manufacture of automobile bodies and home appliance casings. In order to improve the corrosion resistance of hot-dip galvanized steel sheets, a certain amount of aluminum and magnesium elements are often added to the hot-dip galvanized coating. [0003] In the manufacturing process of automobiles and home appliances, it is often necessary to use glue to connect different parts. However, the presence of aluminum and magnesium elements in the hot-dip galvanized steel sheet results in poor bonding properties of the hot-dip galvanized steel sheet, and the bonding position is prone to separation betw...

Claims

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Application Information

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IPC IPC(8): C23C28/00C23C2/06C23C2/40C23C2/02C23C2/26
CPCC23C28/321C23C28/345C23C2/06C23C2/40C23C2/02C23C2/26
Inventor 蒋光锐滕华湘韩赟章军商婷李飞刘李斌朱国森赵晓非苗雨芳黎敏姚士聪胡燕慧白雪李研尉冬
Owner SHOUGANG CORPORATION
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