CN214927750U

CN214927750U - Composite metal plate

Info

Publication number: CN214927750U
Application number: CN202120667065.7U
Authority: CN
Inventors: 程杰强; 陈振庭
Original assignee: Guangdong Jinyuan New Material Technology Co ltd
Current assignee: Guangdong Jinyuan New Material Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-30
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a composite metal plate, including the aluminium sandwich layer, its characterized in that: the lower surface of the aluminum core layer is provided with a first polymer film, the lower surface of the first polymer film is provided with a bottom aluminum layer, the upper surface of the aluminum core layer is provided with a second polymer film, the upper surface of the second polymer film is sequentially provided with a second aluminum layer, an upper polymer film and a first aluminum layer from bottom to top to form a composite plate body, the composite plate body is provided with a bending part, and the first aluminum layer, the upper polymer film and the second aluminum layer of the bending part are mutually attached; the utility model discloses a composite metal plate, through add the one deck aluminium lamination on aluminium core layer surface, this kind of two-layer aluminium lamination design makes composite metal plate's bulk strength obtain improving, more importantly, the anti intensity of buckling of the two-layer aluminium lamination after the increase obviously strengthens, has improved the life of product.

Description

Composite metal plate

Technical Field

The utility model relates to a compound novel material specifically is a composite metal plate.

Background

The wall body of the building outer wall is generally built by bricks or poured by concrete, the bricks and the concrete have unattractive appearance, larger heat conductivity coefficient and poor heat insulation performance, in order to ensure that the built building outer wall has attractive appearance and good heat insulation performance, a heat insulation material layer is compounded on the wall surface of the building outer wall, and then a decorative material layer is compounded on the outer surface of the heat insulation material layer. In the prior art, most of heat insulation material layers for building outer walls are foam plastic layers, and decorative material layers can be coating layers or stone layers or ceramic tiles. The foam plastic is light in weight, low in cost and low in heat conductivity coefficient, is a good building heat-insulating material, is a combustible substance, can cause fire disasters when being constructed and used carelessly, and can generate a large amount of toxic and harmful gas when being burnt. In the construction or use of the building insulated by the foam plastics, a serious fire accident caused by flammable foam plastics often happens. The foamed plastic used as the heat insulating material for the outer wall of the building has great potential safety hazard in building construction or building use, so that the foamed plastic heat insulating material is difficult to popularize and use in heat insulation of the outer wall of the building. At present, an insulation layer material for building external walls, which can replace a foam plastic layer, is urgently needed in industrial and civil buildings.

The composite board is a layer material for aviation and aerospace equipment. The composite board has an aluminum surface layer and an aluminum bottom layer, and an aluminum core layer is arranged between the aluminum surface layer and the aluminum bottom layer. The aluminum core layer dispersedly bears the pressure from the directions of the surface layer and the bottom layer, so that the composite board is stressed uniformly, the surface layer can still keep high flatness in a large area, the composite board made by taking the aluminum core layer as a core material has light weight, high strength and high rigidity, and also has excellent performances of heat preservation, sound insulation, shock absorption, flame retardance and the like, and the composite board is applied to industrial and civil buildings at present. Is a civil technology converted from aviation and aerospace technology. However, the composite board in the prior art still has the following defects: (1) the upper surface of the existing composite metal plate is only provided with a single aluminum layer, the bending strength of the single aluminum layer is very small, and when the composite plate is installed, the composite plate is often required to be bent (for example: folded), so that the bending strength of the composite plate is measured on the outer surface of the bent part of the composite plate, namely: the outer surface of the single aluminum layer is easy to have creases, and even the outer surface of the single aluminum layer at the bent position has gaps, which not only seriously affects the use of the product, but also even causes scrapping.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a obviously improve product bulk strength and bending strength's composite metal plate.

The utility model discloses the purpose realizes like this:

a composite metal sheet comprising an aluminium core layer, characterized in that: the lower surface of the aluminum core layer is provided with a first polymer film, the lower surface of the first polymer film is provided with a bottom aluminum layer, the upper surface of the aluminum core layer is provided with a second polymer film, the upper surface of the second polymer film is sequentially provided with a second aluminum layer, an upper polymer film and a first aluminum layer from bottom to top so as to form a composite plate body, the composite plate body is provided with a bending part, and the first aluminum layer, the upper polymer film and the second aluminum layer of the bending part are mutually attached; the utility model discloses a composite metal plate, through add the one deck aluminium lamination on aluminium core layer surface, this kind of two-layer aluminium lamination design makes composite metal plate's bulk strength obtain improving, more importantly, the anti intensity of buckling of the two-layer aluminium lamination after the increase obviously strengthens, has improved the life of product.

The first polymer film, the second polymer film and the upper polymer film are films made of polymer materials, have good weather resistance (namely, fastness, no paint removal), waterproofness and adhesiveness, and can play a role in protecting the aluminum core layer and each aluminum layer from being isolated from air and preventing oxidation when the films are adhered to the aluminum core layer and each aluminum layer.

The utility model discloses can also further adopt following technical scheme:

specifically, the upper surface of the first aluminum layer is provided with three fluorocarbon paint layers, and the three fluorocarbon paint layers are also provided with a protective film; the three-coating fluorocarbon paint layer has the advantages of strong corrosion resistance, weather resistance (namely, fastness and paint removal resistance) and long service life, and the protective film can protect the service surface from being scratched in the processes of processing, transportation and installation; the three fluorocarbon paint layers can form decorative surfaces with various colors, patterns and textures while protecting the first aluminum layer, and have certain attractive effect.

Specifically, the aluminum core layer comprises an aluminum core, and a polymer film on the upper surface of the aluminum core and a polymer film on the lower surface of the aluminum core which are compounded on the upper surface and the lower surface of the aluminum core; the high molecular film on the upper surface of the aluminum core and the high molecular film on the lower surface of the aluminum core are films made of high molecular materials, and have good weather resistance (namely, fastness and no paint removal), waterproofness and adhesiveness.

Specifically, a plurality of convex circular parts which are regularly arranged in a plum blossom shape are respectively formed on the upper surface and the lower surface of the aluminum core layer; the convex round part improves the strength of the aluminum core layer, and further improves the overall strength of the composite metal plate.

Specifically, an upper gap is reserved between the polymer film on the upper surface of the aluminum core and the second polymer film, and a lower gap is reserved between the polymer film on the lower surface of the aluminum core and the first polymer film; the upper gap and the lower gap save the material and the cost of the filter core layer, and simultaneously can ensure the integral strength of the aluminum core layer.

Specifically, a coating is arranged on the lower surface of the bottom aluminum layer; the coating plays a good role in protecting the lower surface of the bottom aluminum layer.

Specifically, the bending part is provided with a bending groove which is convenient to bend, and the bending groove is filled with structural adhesive; the bending groove is convenient for forming a bending part, the structural adhesive has the advantages of high strength, peeling resistance and impact resistance, and the structural adhesive filled in the bending groove can ensure the strength of the bending part so that the bending part cannot be easily broken.

Specifically, the corner a of the bending part is in arc transition; the bending part is reasonable in arrangement and is beneficial to forming the bending part.

Specifically, the angle of the corner a of the bent part is between 30 degrees and 160 degrees; the arrangement is reasonable.

Specifically, the total thickness of the aluminum core layer is greater than that of the first aluminum layer, and the total thickness of the aluminum core layer is greater than that of the second aluminum layer; the structure not only improves the integral strength of the composite metal plate, but also obviously improves the bending strength of the composite metal plate.

The utility model has the advantages as follows:

(1) the utility model discloses a composite metal plate, through add the one deck aluminium lamination on aluminium core layer surface, this kind of two-layer aluminium lamination design makes composite metal plate's bulk strength obtain improving, more importantly, the anti intensity of buckling of the two-layer aluminium lamination after the increase obviously strengthens, has improved the life of product.

(2) The three-coating fluorocarbon paint layer has the advantages of strong corrosion resistance, weather resistance (namely, fastness and paint removal resistance) and long service life, and the protective film can protect the service surface from being scratched in the processes of processing, transportation and installation; the three fluorocarbon paint layers can form decorative surfaces with various colors, patterns and textures while protecting the first aluminum layer, and have certain attractive effect.

(3) The total thickness of the aluminum core layer is greater than that of the first aluminum layer, and the total thickness of the aluminum core layer is greater than that of the second aluminum layer; the structure not only improves the integral strength of the composite metal plate, but also obviously improves the bending strength of the composite metal plate.

Drawings

Fig. 1 is a schematic structural diagram of the composite metal plate of the present invention.

Fig. 2 is a schematic view of a partial structure of the composite metal plate of the present invention.

Fig. 3 is a schematic view of an aluminum core layer according to the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b): as shown in fig. 1 to 3, a composite metal plate includes an aluminum core layer 100, and is characterized in that: a first polymer film 10 is arranged on the lower surface of the aluminum core layer 100, a bottom aluminum layer 11 is arranged on the lower surface of the first polymer film 10, and a coating layer 12 is arranged on the lower surface of the bottom aluminum layer 11; the upper surface of the aluminum core layer 100 is provided with a second polymer film 6, the upper surface of the second polymer film 6 is sequentially provided with a second aluminum layer 5, an upper polymer film 4 and a first aluminum layer 3 from bottom to top, the upper surface of the first aluminum layer 3 is provided with a three-coated fluorocarbon paint layer 2, the three-coated fluorocarbon paint layer 2 is further provided with a protective film 1 to form a composite plate body, a bent part is arranged on the composite plate body, the bent part is provided with a bending groove 13 convenient to bend, and the bending groove 13 is filled with a structural adhesive 14; the first aluminum layer 3, the upper polymer film 4 and the second aluminum layer 5 of the bent portion are closely attached to each other.

As a specific scheme, the aluminum core layer 100 includes an aluminum core 8, and an aluminum core upper surface polymer film 7 and an aluminum core lower surface polymer film 9 which are compounded on the upper surface and the lower surface of the aluminum core 8; the upper surface and the lower surface of the aluminum core layer 100 are respectively formed with a plurality of convex parts 101 which are regularly arranged in a plum blossom shape.

In this embodiment, an upper gap 20 exists between the polymer film 7 on the upper surface of the aluminum core and the second polymer film 6, and a lower gap 30 exists between the polymer film 9 on the lower surface of the aluminum core and the first polymer film 10.

As a better embodiment, the corner a of the bending part is in arc transition; the angle of the corner a of the bent part is between 30 and 160 degrees.

In a more preferred embodiment, the total thickness of the aluminum core layer 100 is greater than the total thickness of the first aluminum layer 3, and the total thickness of the aluminum core layer 100 is greater than the total thickness of the second aluminum layer 5.

The process for manufacturing the composite metal plate comprises the following steps:

first, preparing the first aluminum layer 3 and the second aluminum layer 5, the bottom aluminum layer 11: respectively carrying out corresponding coating and film covering on the first aluminum layer 3, the second aluminum layer 5 and the bottom aluminum layer 11, hoisting the coated layers to an unreeling machine of a composite metal plate production line for standby,

secondly, preparing an aluminum core layer 100: and (2) hoisting an aluminum core 8, drawing out a leading head, passing through a heating film sticking machine, simultaneously coating and sticking a high molecular film 7 on the upper surface of the aluminum core and a high molecular film 9 on the lower surface of the aluminum core from top to bottom, passing through a drawing embossing roller, arranging an upper roller in a convex circle shape, arranging a lower roller in a concave circle shape to form a primary-secondary correspondence, and extruding concave-convex parts (namely convex circular parts 101) which are regularly arranged.

Leveling: and leveling the extruded concave-convex part to the height of the uniform conical core by a leveling roller, and then drawing the concave-convex part into a tractor of a composite metal plate production line.

Fourthly, compounding: after the aluminum core layer 100 enters a rear tractor, the bottom aluminum layer 11 and the second aluminum layer 5 are firstly and secondly drawn into the first group of heating composite rollers for thickness limiting heating lamination, the drawing and the lamination are synchronous, and the first aluminum layer 3 is introduced into the second group of heating composite rollers for second synchronous lamination after the synchronous lamination.

Fifthly, cooling and rolling: cooling and rolling after the compounding.

Claims

1. A composite metal sheet comprising an aluminium core layer (100), characterized in that: the aluminum-clad plate is characterized in that a first polymer film (10) is arranged on the lower surface of the aluminum core layer (100), a bottom aluminum layer (11) is arranged on the lower surface of the first polymer film (10), a second polymer film (6) is arranged on the upper surface of the aluminum core layer (100), a second aluminum layer (5), an upper polymer film (4) and a first aluminum layer (3) are sequentially arranged on the upper surface of the second polymer film (6) from bottom to top to form a composite plate body, a bending part is arranged on the composite plate body, and the first aluminum layer (3), the upper polymer film (4) and the second aluminum layer (5) of the bending part are tightly attached to each other.

2. A composite metal sheet according to claim 1, wherein the upper surface of the first aluminium layer (3) is provided with a three fluorocarbon paint layer (2), and the three fluorocarbon paint layer (2) is further provided with a protective film (1).

3. The composite metal sheet defined in claim 1, wherein: the aluminum core layer (100) comprises an aluminum core (8), and a polymer film (7) on the upper surface of the aluminum core and a polymer film (9) on the lower surface of the aluminum core, which are compounded on the upper surface and the lower surface of the aluminum core (8).

4. The composite metal sheet defined in claim 3 wherein: the upper surface and the lower surface of the aluminum core layer (100) are respectively provided with a plurality of convex circular parts (101) which are arranged regularly in a plum blossom shape.

5. The composite metal sheet defined in claim 4 wherein: there is clearance (20) on aluminium core upper surface polymer membrane (7) and second polymer membrane (6), there is clearance (30) down between aluminium core lower surface polymer membrane (9) and first polymer membrane (10).

6. The composite metal sheet defined in claim 1, wherein: the lower surface of the bottom aluminum layer (11) is provided with a coating (12).

7. The composite metal sheet defined in claim 1, wherein: the bending part is provided with a bending groove (13) convenient to bend, and the bending groove (13) is filled with structural adhesive (14).

8. The composite metal sheet as claimed in claim 1, wherein the bent portion has a circular arc transition at the corner a.

9. The composite metal sheet defined in claim 8 wherein the angle of the bend a is between 30 and 160 degrees.

10. The composite metal sheet defined in claim 7 wherein: the total thickness of the aluminum core layer (100) is greater than that of the first aluminum layer (3), and the total thickness of the aluminum core layer (100) is greater than that of the second aluminum layer (5).