Hollow framework aluminum composite board

Abstract

The utility model relates to the field of aluminum composite plates, in particular to a hollow framework aluminum composite plate, which comprises an aluminum panel layer, a first bonding layer, a hollow framework core layer, a second bonding layer and a bottom plate layer, and the bottom surface of the aluminum panel layer is fixedly bonded with the top surface of the hollow framework core layer through the first bonding layer. The bottom surface of the hollow framework core layer is fixedly bonded with the bottom plate layer through a second bonding layer; prefabricated holes distributed in a matrix are formed in the hollow framework core layer; the ratio range of the contour area of the prefabricated holes to the area of the hollow framework core layer is larger than or equal to 0.4 and smaller than 0.85; the ratio of the thickness of the hollow framework core layer to the thickness of the hollow framework aluminum composite plate is larger than or equal to 0.5 and smaller than 0.8, the thickness of the hollow framework aluminum composite plate is smaller than or equal to 4 mm, and the hollow framework core layer is made of carbon steel or galvanized carbon steel or stainless steel. The light weight of the aluminum composite plate for decoration is achieved, meanwhile, the strength of the aluminum composite plate is improved, and the cost of the aluminum composite plate for decoration is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aluminum composite panel, especially to a hollow skeleton aluminum composite panel. BACKGROUND

[0002] With the improvement of people's home decoration quality requirement and the enhancement of environmental protection consciousness, the aluminum alloy decorative wallboard as a kind of high-quality indoor decorative material, it has waterproof, moisture-proof, fireproof, heat-resistant, impact-resistant and easy to clean performance, can satisfy the diversified design demand, is widely used in the wall decoration of home and office.

[0003] In the prior art, there are finished products prepared by directly preparing a decorative film on the surface of an aluminum alloy plate, and there are structures in which an aluminum layer, a foaming layer and an aluminum foil are compounded together, the thickness of the former single plate is usually 2mm-3mm, and the thickness of the latter composite plate is usually 4mm-6mm, the former is high in cost because pure aluminum is used and can only control the strength by increasing the thickness, and the thickness of the latter composite plate is large, although the bending strength is higher than that of the single plate, but the impact resistance is much lower than that of the single plate, and the surface is concave and convex due to slight impact in the use process, thereby affecting the appearance. SUMMARY

[0004] Therefore, the utility model provides a hollow skeleton aluminum composite panel to overcome the poor bending resistance and high cost of the single aluminum plate and the large thickness and poor impact resistance of the honeycomb aluminum composite plate in the prior art.

[0005] To achieve the above object, the utility model provides a hollow skeleton aluminum composite panel, which comprises:

[0006] An aluminum panel layer, a first adhesive layer, a hollow skeleton core layer, a second adhesive layer and a bottom plate layer, the bottom surface of the aluminum panel layer is fixedly bonded to the top surface of the hollow skeleton core layer through the first adhesive layer, and the bottom surface of the hollow skeleton core layer is fixedly bonded to the bottom plate layer through the second adhesive layer;

[0007] Preformed holes in a matrix distribution are arranged on the hollow skeleton core layer;

[0008] The ratio of the contour area of the preformed hole to the area of the hollow skeleton core layer is greater than or equal to 0.4 and less than 0.85;

[0009] The ratio of the thickness of the hollow skeleton core layer to the thickness of the hollow skeleton aluminum composite plate is greater than or equal to 0.3 and less than 0.8, and the thickness of the hollow skeleton aluminum composite plate is less than or equal to 4mm;

[0010] The material of the hollow skeleton core layer is carbon steel, galvanized carbon steel or stainless steel.

[0011] Further, the profile shape of the preformed hole includes a circle, an ellipse, a polygon, a star, and an irregular shape.

[0012] Further, the material of the bottom plate layer is aluminum alloy, copper alloy, carbon steel, or galvanized carbon steel.

[0013] Further, the first adhesive layer is glue, and the adhesive materials of the first adhesive layer and the second adhesive layer are the same, and the glue is one of polyurethane glue, epoxy resin glue, silicone glue, or acrylate glue.

[0014] Further, the first adhesive layer is an adhesive film, and the adhesive materials of the first adhesive layer and the second adhesive layer are the same, and the adhesive film is one of a modified polyolefin hot melt adhesive film, an EVA adhesive film, an EAA adhesive film, or an epoxy adhesive film.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a hollow skeleton aluminum composite board, which comprises a steel hollow skeleton core layer, an aluminum panel layer and a bottom plate layer.

[0017] Further, the steel hollow skeleton core layer formed by the preformed hole has higher strength than the honeycomb layer of the honeycomb aluminum composite board, and the strength of the hollow skeleton aluminum composite board formed after compounding is higher than that of the honeycomb aluminum composite board.

[0018] Further, the utility model is bonded by glue or adhesive film, and the process is simple and reliable in bonding strength. DRAWINGS

[0019] Figure 1 It is a hollow skeleton aluminum composite board stacking structure schematic view of the utility model embodiment.

[0020] Figure 2 It is a hollow skeleton aluminum composite board of the utility model embodiment circular preformed hole.

[0021] Figure 3 It is a hollow skeleton aluminum composite board of the utility model embodiment elliptical preformed hole.

[0022] Figure 4 It is a hollow skeleton aluminum composite board of the utility model embodiment quadrilateral preformed hole.

[0023] Figure 5 It is a hollow skeleton aluminum composite board of the utility model embodiment star preformed hole.

[0024] Figure 6 The irregularly-shaped prefabricated hole hollow skeleton aluminum composite board of the utility model embodiment;

[0025] In the drawing: 1, aluminum panel layer; 2, first adhesive layer; 3, hollow skeleton core layer; 4, second adhesive layer; 5, bottom plate layer; 31, prefabricated hole; 311, circular prefabricated hole; 312, oval prefabricated hole; 313, quadrilateral prefabricated hole; 314, star-shaped prefabricated hole; 315, irregularly-shaped prefabricated hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model embodiments are described clearly and completely. Obviously, the following described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the embodiments of the utility model.

[0028] In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In the description of the embodiments of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0030] Please refer to Figure 1The utility model embodiment provides a kind of hollow skeleton aluminum composite board, it includes: aluminium panel layer 1, first adhesive layer 2, hollow skeleton core layer 3, second adhesive layer 4 and bottom plate layer 5, the bottom surface of aluminium panel layer 1 is fixedly bonded with the top surface of hollow skeleton core layer 3 by first adhesive layer 2, the bottom surface of hollow skeleton core layer 3 is fixedly bonded with bottom plate layer 5 by second adhesive layer 4;

[0031] Preform hole 31 in matrix distribution is provided on the hollow skeleton core layer 3;

[0032] The ratio of the profile area of preform hole 31 to the area of hollow skeleton core layer 3 is greater than or equal to 0.4 and less than 0.85;

[0033] The ratio of the thickness of hollow skeleton core layer 3 to the thickness of the hollow skeleton aluminum composite board is greater than or equal to 0.3 and less than 0.8, and the thickness of the hollow skeleton aluminum composite board is less than or equal to 4 mm;

[0034] The material of hollow skeleton core layer 3 is carbon steel, galvanized carbon steel or stainless steel.

[0035] It can be understood that the ratio of the profile area of preform hole 31 to the area of hollow skeleton core layer 3 represents the area proportion of preform hole 31 on hollow skeleton core layer 3. The smaller the area ratio, the higher the bending strength, but the heavier the weight, and the smaller the bonding area of the composite, the worse the bonding effect. The larger the area ratio, the lower the impact resistance of the composite board, but the lighter the weight. Therefore, the area ratio is greater than or equal to 0.4 and less than 0.85, which can obtain good bending strength, impact resistance, lightweight effect and bonding performance within this range.

[0036] It can be understood that the ratio of the thickness of hollow skeleton core layer 3 to the thickness of the hollow skeleton aluminum composite board represents the thickness proportion of hollow skeleton core layer 3. The larger the thickness ratio, the higher the bending strength of the hollow skeleton aluminum composite board, but the heavier the weight. The smaller the thickness ratio, the higher the impact resistance of the composite board. Therefore, the thickness ratio is greater than or equal to 0.3 and less than 0.8, which can obtain good bending strength, impact resistance and lightweight effect within this range.

[0037] The material of hollow skeleton core layer 3 is carbon steel, galvanized carbon steel or stainless steel. The hollow skeleton aluminum composite board formed by compounding with aluminium panel layer 1 has higher bending strength than pure aluminum single board, weight is comparable to pure aluminum single board, but raw material cost is lower than pure aluminum single board.

[0038] In some embodiments, as Figures 2-6As shown, the profile shape of the prefabricated holes 31 includes a circle, an ellipse, a polygon, a star and an irregular shape, therefore, the prefabricated holes 31 of the hollow skeleton core layer 3 formed include a circular prefabricated hole 311, an elliptical prefabricated hole 312, a quadrilateral prefabricated hole 313, a star-shaped prefabricated hole 314 and an irregular prefabricated hole 315, it can be understood that the circular prefabricated hole 311 formed hollow skeleton core layer 3 has better isotropy in each direction of the plate plane, and the elliptical prefabricated hole 312 formed hollow skeleton core layer 3 has better anisotropy in each direction of the plate plane, to meet different bending requirements.

[0039] In some embodiments, the material of the bottom plate layer 5 is aluminum alloy, copper alloy, carbon steel or galvanized carbon steel.

[0040] In some embodiments, the first adhesive layer 2 is glue and the adhesive materials of the first adhesive layer 2 and the second adhesive layer 4 are the same, the glue is one of polyurethane glue, epoxy resin glue, silicone glue or acrylate glue, and cold pressing adhesion can be achieved by using glue.

[0041] In some embodiments, the first adhesive layer 2 is an adhesive film and the adhesive materials of the first adhesive layer 2 and the second adhesive layer 4 are the same, the adhesive film is one of modified polyolefin hot melt adhesive film, EVA adhesive film, EAA adhesive film or epoxy adhesive film, and hot pressing adhesion can be achieved by using adhesive film, to improve the adhesion performance and ensure the composite effect of the hollow skeleton aluminum composite panel.

[0042] For those skilled in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation and application range, and the above description should not be understood as a limitation of the present application.

Claims

1. A hollow-skeleton aluminum composite panel, characterized by, The hollow skeleton core layer is provided with prefabricated holes in a matrix distribution. The ratio of the profile area of the prefabricated hole to the area of the hollow skeleton core layer is greater than or equal to 0.4 and less than 0.

85. The ratio of the thickness of the hollow skeleton core layer to the thickness of the hollow skeleton aluminum composite board is greater than or equal to 0.3 and less than 0.8, and the thickness of the hollow skeleton aluminum composite board is less than or equal to 4 mm. The material of the hollow skeleton core layer is carbon steel, galvanized carbon steel or stainless steel. The profile shape of the prefabricated hole includes a circle, an ellipse and a polygon. The material of the bottom plate layer is aluminum alloy, copper alloy, carbon steel or galvanized carbon steel.

2. The hollow-skeleton aluminum composite panel according to claim 1, characterized by, The first adhesive layer is glue, and the adhesive materials of the first adhesive layer and the second adhesive layer are the same. The glue is one of polyurethane glue, epoxy resin glue, silicone glue or acrylate glue.

3. The hollow-skeleton aluminum composite panel according to claim 1, wherein The first adhesive layer is an adhesive film, and the adhesive materials of the first adhesive layer and the second adhesive layer are the same. The adhesive film is one of modified polyolefin hot melt adhesive film, EVA adhesive film, EAA adhesive film or epoxy adhesive film.

4. The hollow-skeleton aluminum composite panel according to claim 1, wherein ​ 5. The hollow-skeleton aluminum composite panel according to claim 1, wherein ​

Images