A multi-layered composite high-strength copper alloy plate

Abstract

This utility model relates to the field of copper alloy sheet technology, specifically a multi-layered composite high-strength copper alloy sheet, comprising a base layer and a protective layer, with a reinforcing layer between the base layer and the protective layer. The reinforcing layer includes a honeycomb structure layer, with a buffer layer on top of the honeycomb structure layer; it also includes an edging covering the outside of the base layer, the protective layer, and the reinforcing layer. This multi-layered composite high-strength copper alloy sheet, through the synergistic effect of the multi-layered composite structure, significantly improves the sheet's bending resistance, impact resistance, and load-bearing capacity while maintaining the decorative properties of copper alloy, overcoming the defects of traditional single homogeneous structures such as easy plastic deformation and stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of copper alloy sheet technology, specifically a multi-layer composite high-strength copper alloy sheet. Background Technology

[0002] Copper alloy sheets are alloy materials formed by adding aluminum, nickel, zinc, and other metallic elements to copper. Due to their unique metallic texture, ductility, and corrosion resistance, they are widely used in building curtain walls, interior decoration, and art. Through surface treatments (such as oxidation, wire drawing, and etching), copper alloy sheets can exhibit rich colors and textures, making them an important material in high-end decorative fields. However, the performance limitations of traditional copper alloy sheets restrict their application expansion under complex working conditions.

[0003] Most existing decorative copper alloy sheets have a single homogeneous structure, meaning they are primarily composed of copper, with small amounts of alloying elements (such as aluminum and tin) added to form the sheet. While these sheets possess a certain degree of decorative appeal and weather resistance, their mechanical properties are significantly insufficient.

[0004] 1. Insufficient strength: Single homogeneous structures are prone to plastic deformation when subjected to external impact or long-term load, especially in thin plate state where the bending resistance is poor;

[0005] 2. Stress concentration: The distribution of alloying elements in the overall material is difficult to balance strength and toughness at the same time, which makes it easy for cracks or fractures to occur in stress concentration areas.

[0006] 3. Functional limitations: If the strength is increased by increasing the thickness of the board, the advantages of lightweight and cost will be sacrificed, making it difficult to meet the modern building's demand for "high strength and thinness" in decorative materials.

[0007] To address the aforementioned issues, it is urgent to break through the performance bottlenecks of single materials through structural innovation. Therefore, we propose a high-strength copper alloy sheet with a multi-layered composite structure. This multi-layered composite structure significantly improves the bending resistance, impact resistance, and lightweighting of copper alloy while maintaining its decorative properties, thus overcoming the limitations of traditional sheet materials in complex decorative applications. Utility Model Content

[0008] The purpose of this invention is to provide a high-strength copper alloy plate with a multi-layer composite structure to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A multi-layered composite high-strength copper alloy sheet includes a substrate layer and a protective layer. The substrate layer provides basic support, while the protective layer resists external impacts and protects the internal structure. Figure 1 and Figure 2As shown, a reinforcing layer is provided between the substrate layer and the protective layer. The reinforcing layer is used to improve the overall bending resistance and distribute stress. The reinforcing layer includes a honeycomb structure layer, which is used to achieve lightweighting and enhance compressive strength through a porous structure. A buffer layer is provided on the top of the honeycomb structure layer, which is used to absorb impact energy and prevent deformation of the honeycomb structure layer. It also includes an edge covering the outside of the substrate layer, the protective layer and the reinforcing layer. The outer edges of the protective layer and the reinforcing layer are welded to the edge, which is used to seal the edges and prevent interlayer peeling.

[0011] Preferred, such as Figure 1 As shown, the substrate layer, protective layer, and edging are all made of copper alloy material. The copper alloy composition of the substrate layer and protective layer ensures both decorative properties and corrosion resistance. The thickness of the substrate layer is 2-5mm, the thickness of the protective layer is 2-5mm, and the thickness of the edging is 0.5-2mm.

[0012] Preferred, such as Figure 2 As shown, both the substrate layer and the protective layer have a protective coating on their outer sides. The protective coating is a nickel plating layer, which further enhances weather resistance and surface gloss.

[0013] A second bonding layer is provided between the substrate layer and the honeycomb structure layer. The second bonding layer is used to bond the substrate layer and the honeycomb structure layer with epoxy resin adhesive. A third bonding layer is provided between the protective layer and the buffer layer. The third bonding layer is used to bond the protective layer and the buffer layer with epoxy resin adhesive. Both the second bonding layer and the third bonding layer are epoxy resin adhesive layers.

[0014] A first bonding layer is provided between the honeycomb structure layer and the buffer layer. The first bonding layer is a polyurethane adhesive layer, which is used to bond the honeycomb structure layer and the buffer layer together with polyurethane adhesive.

[0015] Preferred, such as Figure 3 As shown, the honeycomb structure layer is made of aluminum alloy material, and the thickness of the honeycomb structure layer is 2-5mm. The aluminum alloy honeycomb structure layer provides high specific strength while being lightweight. The honeycomb cells of the honeycomb structure layer are filled with polyurethane foam, which provides some sound insulation and flame retardant functions.

[0016] The buffer layer is made of silicone rubber and has a thickness of 0.5-2mm. The silicone rubber buffer layer absorbs dynamic loads and alleviates vibrations through high elasticity.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This multi-layered composite high-strength copper alloy sheet, through the synergistic effect of the multi-layered composite structure, significantly improves the sheet's bending resistance, impact resistance, and load-bearing capacity while maintaining the decorative properties of copper alloy, overcoming the defects of traditional single homogeneous structures such as easy plastic deformation and stress concentration.

[0019] 2. This multi-layered composite high-strength copper alloy plate uses aluminum alloy for its honeycomb structure. The porous structure reduces the overall weight, while the symmetrical distribution of the copper alloy substrate layer and the protective layer ensures that the plate still has high specific strength and rigidity despite its thin design. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0022] Figure 3 This is a partial structural diagram of the reinforcing layer in this utility model;

[0023] In the diagram: 1. Substrate layer; 2. Protective layer; 3. Reinforcing layer; 30. Honeycomb structure layer; 31. Buffer layer; 32. First bonding layer; 33. Filler; 4. Second bonding layer; 5. Third bonding layer; 6. Protective coating; 7. Edge binding. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figures 1-3 This utility model provides a technical solution:

[0027] A multi-layered composite high-strength copper alloy sheet includes a substrate layer 1 and a protective layer 2. The substrate layer 1 provides basic support, and the protective layer 2 resists external impacts and protects the internal structure. Figure 1 and Figure 2 As shown, a reinforcing layer 3 is provided between the substrate layer 1 and the protective layer 2. The reinforcing layer 3 is used to improve the overall bending resistance and distribute stress. The reinforcing layer 3 includes a honeycomb structure layer 30, which is used to achieve lightweighting and enhance compressive strength through a porous structure. A buffer layer 31 is provided on the top of the honeycomb structure layer 30, which is used to absorb impact energy and prevent deformation of the honeycomb structure layer 30. It also includes an edge banding 7 covering the outer side of the substrate layer 1, the protective layer 2 and the reinforcing layer 3. The outer edges of the protective layer 2 and the reinforcing layer 3 are welded to the edge banding 7. The edge banding 7 is used to seal the edges and prevent interlayer peeling.

[0028] In this embodiment, as Figure 1 As shown, the substrate layer 1, protective layer 2, and edging 7 are all made of copper alloy material. The copper alloy composition of the substrate layer 1 and protective layer 2 ensures both decorative properties and corrosion resistance. The thickness of the substrate layer 1 is 2-5mm, the thickness of the protective layer 2 is 2-5mm, and the thickness of the edging 7 is 0.5-2mm.

[0029] Specifically, such as Figure 2 As shown, both the substrate layer 1 and the protective layer 2 are provided with a protective coating 6 on their outer sides. The protective coating 6 is a nickel plating layer, which further enhances weather resistance and surface gloss.

[0030] A second bonding layer 4 is provided between the substrate layer 1 and the honeycomb structure layer 30. The second bonding layer 4 is used to bond the substrate layer 1 and the honeycomb structure layer 30 with epoxy resin adhesive. A third bonding layer 5 is provided between the protective layer 2 and the buffer layer 31. The third bonding layer 5 is used to bond the protective layer 2 and the buffer layer 31 with epoxy resin adhesive. Both the second bonding layer 4 and the third bonding layer 5 are epoxy resin adhesive layers.

[0031] A first bonding layer 32 is provided between the honeycomb structure layer 30 and the buffer layer 31. The first bonding layer 32 is a polyurethane adhesive layer, which is used to bond the honeycomb structure layer 30 and the buffer layer 31 together with polyurethane adhesive.

[0032] Furthermore, such as Figure 3 As shown, the honeycomb structure layer 30 is made of aluminum alloy material and has a thickness of 2-5mm. The aluminum alloy honeycomb structure layer 30 provides high specific strength while being lightweight. The honeycomb cells of the honeycomb structure layer 30 are filled with a filler 33, which is polyurethane foam. The polyurethane foam plays a partial role in sound insulation and flame retardancy.

[0033] The buffer layer 31 is made of silicone rubber material and has a thickness of 0.5-2mm. The silicone rubber buffer layer 31 absorbs dynamic loads and alleviates vibrations through high elasticity.

[0034] In this embodiment, the multi-layered composite high-strength copper alloy sheet provides basic support through the rigidity of the copper alloy in the base layer 1 when subjected to external impact or vibration, preventing the overall structure from collapsing. The protective layer 2 directly resists external impact by utilizing the high strength of the copper alloy, protecting the internal honeycomb structure layer 30 from local deformation. The aluminum alloy honeycomb structure layer 30 in the reinforcing layer 3 disperses stress and maintains overall rigidity through its porous structure, while the polyurethane foam of the internal filler 33 absorbs energy and blocks noise through deformation. The silicone rubber material of the buffer layer 31 further buffers dynamic loads through high elastic deformation, preventing impact from being transmitted to the honeycomb structure. The structural layer 30 causes permanent deformation; the epoxy resin adhesive of the second bonding layer 4 and the third bonding layer 5 ensures the interlayer bonding stability between the substrate layer 1 and the honeycomb structure layer 30, and between the protective layer 2 and the buffer layer 31 through high-strength adhesion, preventing delamination and cracking; the polyurethane adhesive of the first bonding layer 32 alleviates the interfacial stress between the honeycomb structure layer 30 and the buffer layer 31 through flexible bonding; the nickel plating layer of the protective coating 6 resists acid and alkali corrosion and ultraviolet erosion in the environment through chemical inertness, maintaining the surface metallic luster; the copper alloy edging 7 seals and reinforces the edge of the plate through welding, preventing moisture from entering the interlayer gaps and causing oxidation and delamination, while enhancing the edge's anti-peeling ability.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layered composite high-strength copper alloy plate, comprising a substrate layer (1) and a protective layer (2), characterized in that: A reinforcing layer (3) is provided between the substrate layer (1) and the protective layer (2). The reinforcing layer (3) includes a honeycomb structure layer (30) and a buffer layer (31) is provided on the top of the honeycomb structure layer (30). It also includes an edge (7) covering the outside of the substrate layer (1), the protective layer (2) and the reinforcing layer (3).

2. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: The substrate layer (1), protective layer (2) and edging (7) are all made of copper alloy material. The thickness of the substrate layer (1) is 2-5mm, the thickness of the protective layer (2) is 2-5mm, and the thickness of the edging (7) is 0.5-2mm.

3. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: The outer sides of both the substrate layer (1) and the protective layer (2) are provided with a protective coating (6), which is a nickel plating layer.

4. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: A second bonding layer (4) is provided between the substrate layer (1) and the honeycomb structure layer (30), and a third bonding layer (5) is provided between the protective layer (2) and the buffer layer (31). Both the second bonding layer (4) and the third bonding layer (5) are epoxy resin adhesive layers.

5. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: A first bonding layer (32) is provided between the honeycomb structure layer (30) and the buffer layer (31), and the first bonding layer (32) is a polyurethane adhesive layer.

6. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: The honeycomb structure layer (30) is made of aluminum alloy material. The thickness of the honeycomb structure layer (30) is 2-5mm. The honeycomb structure layer (30) is filled with a filler (33) in the honeycomb holes. The filler (33) is polyurethane foam.

7. The high-strength copper alloy plate with a multi-layered composite structure according to claim 1, characterized in that: The buffer layer (31) is made of silicone rubber material and the thickness of the buffer layer (31) is 0.5-2mm.

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