CN210590857U

CN210590857U - Self-repairing salt spray resistant PCM composite steel plate

Info

Publication number: CN210590857U
Application number: CN201921432085.5U
Authority: CN
Inventors: 赵东明; 许日民
Original assignee: Hefei Hesheng New Materials Co ltd
Current assignee: Hefei Hesheng New Materials Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-22
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a self-repairing salt spray resistant PCM composite steel plate. Relates to the technical field of composite steel plates. The utility model comprises a substrate, wherein the front surface of the substrate is plated with an Al-Mg-Zn alloy layer, and the surface of the Al-Mg-Zn alloy layer is passivated to form a passivation layer; the back side of the substrate is coated with a back lacquer. The utility model discloses a make PCM steel sheet clad plate have outstanding machine-shaping performance under the severe condition through aluminizing the magnesium-zinc alloy on the steel sheet surface with clad plate.

Description

Self-repairing salt spray resistant PCM composite steel plate

Technical Field

The utility model belongs to the technical field of clad steel plate, especially, relate to a salt fog resistant PCM clad steel plate of selfreparing.

Background

Metal corrosion harms various fields of economic construction and also brings great loss to lives and properties of people. According to statistics, 5% -10% of metal is lost due to corrosion every year, so that the economic loss accounts for 1.5% of the total value of national economic production. In recent years, with the rapid development of household appliance industry in China, salt mist resistance of sheet metal parts of refrigerators, washing machines and air conditioners is higher and higher. The existing composite steel plate can not meet the molding requirement of a client mold and the requirement of corrosion resistance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a salt fog PCM clad steel plate of selfreparing through in clad steel plate through aluminizing the magnesium-zinc alloy on the steel sheet surface, makes PCM steel plate clad steel plate have outstanding machine-shaping performance under the severe condition, has solved the shaping of current mould and has required height and the poor problem of corrosion resisting property.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a self-repairing salt spray resistant PCM composite steel plate, which comprises a substrate, wherein the front surface of the substrate is plated with an Al-Mg-Zn alloy layer, and the surface of the Al-Mg-Zn alloy layer is passivated to form a passivation layer;

the back surface of the substrate is coated with a back paint.

Further, the substrate is a steel plate.

Further, the passivation layer is coated with the priming paint layer, the priming paint layer is coated with the finish paint layer, and the finish paint layer is provided with the PE layer.

The utility model discloses following beneficial effect has:

1. the utility model ensures that the PCM steel plate composite steel plate has excellent processing and forming performances (drawing, stamping, bending, welding, etc.) under severe conditions by plating the aluminum-magnesium-zinc alloy on the surface of the steel plate composite steel plate; due to the composite effect of the aluminum-magnesium-zinc alloy, the corrosion inhibition effect of the PCM steel plate is further improved; the plating adhesion amount is small and more excellent corrosion resistance can be achieved as compared with the conventional zinc-plated and aluminum-zinc-plated products.

2. The utility model solves the problem that the traditional PCM steel plate is gradually electrolyzed and reacted with oxygen and moisture in the atmosphere to rust according to the normal principle after the end of the cut steel plate is not protected by a protective film because the cutting is needed by the fixed length; magnesium ions cut by the edge of the product have fluidity and can flow at the port part which is not covered by the protective film to form a new protective layer.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-substrate, 2-back paint, 3-aluminum-magnesium-zinc alloy layer, 4-passivation layer, 5-primer layer, 6-finish paint layer and 7-PE layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1, the utility model relates to a self-repairing salt spray resistant PCM composite steel plate, which comprises a substrate 1, wherein the substrate 1 is a steel plate, an aluminum magnesium zinc alloy layer 3 is plated on the front surface of the substrate 1, and the surface of the aluminum magnesium zinc alloy layer 3 is passivated to form a passivation layer 4; the passivation layer 4 is coated with a primer layer 5, the primer layer 5 is coated with a finish paint layer 6, and the finish paint layer 6 is provided with a PE layer; the PCM steel plate composite steel plate has excellent processing and forming performances (drawing, stamping, bending, welding and the like) under severe conditions by plating the magnesium-zinc alloy on the surface of the steel plate composite steel plate; due to the composite effect of the aluminum-magnesium-zinc alloy, the corrosion inhibition effect of the PCM steel plate is further improved; the plating adhesion amount is small but more excellent corrosion resistance can be achieved compared with the common zinc plating and aluminum zinc plating products; because magnesium ions have fluidity, the magnesium ions can flow at the port part which is not covered by the protective film to form a new protective layer;

the back side of the substrate 1 is coated with a backing lacquer 2.

Wherein, the thickness of base plate 1 is 0.02mm-0.25mm, and the thickness of back paint 2 is 4um-8um, and the primer layer thickness of almag-zn alloy layer 3 is 4um-8um, and the thickness of 5 is 4um-8um, and the thickness of finish coat layer 6 is 4um-8 um.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a self-repairing salt spray resistant PCM clad steel plate, includes base plate (1), its characterized in that:

the front surface of the substrate (1) is plated with an aluminum magnesium zinc alloy layer (3), and the surface of the aluminum magnesium zinc alloy layer (3) is passivated to form a passivation layer (4);

the back surface of the substrate (1) is coated with a back paint (2).

2. The self-repairing salt spray resistant PCM composite steel plate as claimed in claim 1, wherein the substrate (1) is a steel plate.

3. The self-repairing salt spray resistant PCM composite steel plate as claimed in claim 1, wherein the passivation layer (4) is coated with a primer layer (5), the primer layer (5) is coated with a finishing paint layer (6), and the finishing paint layer (6) is provided with a PE layer.