Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Zinc-aluminum-magnesium coated steel plate with excellent adhesive performance and manufacturing method thereof

A technology of coated steel plate and manufacturing method, applied in coating, hot dip plating process, metal material coating process, etc., can solve the problem of accelerated zinc-aluminum-magnesium coated steel plate, poor adhesion performance of zinc-aluminum-magnesium coated steel plate, environmental hazards, etc. problems, to solve the poor adhesive performance, improve corrosion resistance, and accelerate the application.

Active Publication Date: 2021-07-16
BAOSHAN IRON & STEEL CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it should be pointed out that the fluorine-containing aqueous composition used in this technical solution is prepared from NaF or NaHF2, and the above two substances have great harm to the environment
[0009]Based on this, it is expected to obtain a zinc-aluminum-magnesium coated steel sheet with excellent adhesive properties, which can well solve the problem of the zinc-aluminum-magnesium coated steel sheet in the prior art. The problem of poor performance has an important and positive impact on accelerating the application of zinc-aluminum-magnesium-coated steel sheets in the automotive industry and further improving the corrosion resistance of automobiles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zinc-aluminum-magnesium coated steel plate with excellent adhesive performance and manufacturing method thereof
  • Zinc-aluminum-magnesium coated steel plate with excellent adhesive performance and manufacturing method thereof
  • Zinc-aluminum-magnesium coated steel plate with excellent adhesive performance and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The zinc-aluminum-magnesium-coated steel sheet with excellent adhesive properties and its manufacturing method described in the present invention will be further explained and illustrated in conjunction with the accompanying drawings and specific examples. However, such explanations and illustrations do not constitute the technical solution of the present invention. Improperly qualified.

[0065] Embodiment 1-16 and comparative example 1-4

[0066] The zinc-aluminum-magnesium-coated steel sheets of Examples 1-16 and the contrast steel sheets of Comparative Examples 1-4 were prepared in the following steps:

[0067] (1) Steel plate pretreatment.

[0068] (2) Hot-dip plating.

[0069] (3) Cooling after plating: cooling to 40-200°C for the following step (4).

[0070] (4) Coating surface treatment: use alkaline aqueous solution to carry out alkaline activation treatment on the coating surface, the alkaline activation treatment time is 3-30s, the pH value of the alkaline...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
depthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a zinc-aluminum-magnesium coated steel plate with excellent adhesive performance. The zinc-aluminum-magnesium coated steel plate with excellent adhesive performance comprises a steel plate and a zinc-aluminum-magnesium coating; the zinc-aluminum-magnesium coating sequentially comprises a surface layer, a secondary surface layer and a mother layer from outside to inside; the surface layer is provided with oxides of Al and Mg; the secondary surface layer is provided with a Zn / MgZn<2> binary eutectic phase and a Zn / Al / MgZn<2> ternary eutectic phase; and the mother layer adjacent to the steel plate; wherein the contents of Al and Mg elements of the surface layer are respectively not higher than 1.5 times of the contents of Al and Mg elements of the mother layer, and the contents of Al and Mg elements of the secondary surface layer are respectively not higher than 0.5 times of the contents of Al and Mg elements of the mother layer. In addition, the invention also discloses a manufacturing method of the zinc-aluminum-magnesium coated steel plate, which comprises the following steps: (1) steel plate pre-treating; (2) hot dipping; (3) cooling after plating: cooling to 40-200 DEG C, and carrying out the following step (4); and (4) coating surface treatment: carrying out alkaline activation treatment on the coating surface by adopting an alkaline aqueous solution.

Description

technical field [0001] The invention relates to a steel plate and a manufacturing method thereof, in particular to a coated steel plate and a manufacturing method thereof. Background technique [0002] Zinc-aluminum-magnesium coating is a coating with higher corrosion resistance than pure zinc coating. In addition to Zn, the coating also contains a certain amount of Al and Mg elements. Therefore, zinc-aluminum-magnesium-coated steel sheets are not only widely used in the construction industry The application, and the application in the automotive industry has gradually increased in recent years. Due to the high corrosion resistance of zinc-aluminum-magnesium-coated steel sheets, it can not only improve the corrosion resistance of the vehicle, but also reduce the thickness of the coating compared to pure zinc-coated steel sheets, which also contributes to the lightweight of automobiles. In addition, the hardness of zinc-aluminum-magnesium-coated steel sheets is higher than t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06C23C2/40C22C18/04C22C18/00C23C2/26C23C22/60
CPCC23C2/06C23C2/40C22C18/04C22C18/00C23C2/26C23C22/60
Inventor 金鑫焱王凯程国平强少明
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com