An all-aluminum glue-free honeycomb plate

Abstract

The utility model discloses a full aluminum glueless honeycomb board, including honeycomb board, the honeycomb board contains symmetrically arranged scratch -resistant film layer, honeycomb aluminum core layer, macromolecular casting film and honeycomb aluminum board, the utility model relates to building decoration material technical field. This full aluminum glueless honeycomb board has high strength, excellent weather resistance and scratch resistance and wear resistance, and realizes zero formaldehyde release, environmental protection non -toxic, and its performance is more superior.

Description

Technical Field

[0001] This utility model relates to the field of building decoration materials technology, specifically to an all-aluminum glue-free honeycomb panel. Background Technology

[0002] Traditional aluminum honeycomb panels mostly use two-component polyurethane adhesive for interlayer bonding, which has technical drawbacks such as formaldehyde release, poor weather resistance (easily cracks at -20℃), and decreased peel strength after adhesive layer aging. Although existing technologies have attempted to use adhesive films to replace liquid adhesives, they still suffer from problems such as a narrow bonding temperature window (requiring temperatures above 200℃), high energy consumption, and insufficient weather resistance of the adhesive film. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an all-aluminum glue-free honeycomb panel, which solves the technical defects such as formaldehyde release, poor weather resistance, and decreased peel strength after adhesive layer aging, as well as the problems of narrow bonding temperature window, high energy consumption, and insufficient weather resistance of adhesive film.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an all-aluminum glue-free honeycomb panel, comprising a honeycomb panel, wherein the honeycomb panel includes a symmetrically arranged scratch-resistant coating layer, a honeycomb aluminum core layer, a polymer casting film and a honeycomb aluminum plate, wherein the polymer casting film is a maleic anhydride grafted modified polyethylene material.

[0005] Preferably, the scratch-resistant coating layer, the honeycomb aluminum core layer, and the polymer cast film are symmetrically arranged from top to bottom.

[0006] Preferably, the aluminum alloy panel is a 3-series alloy with a hardness ≥ H22.

[0007] Preferably, the scratch-resistant coating layer is made of nano-modified polyester film.

[0008] This invention provides an all-aluminum glue-free honeycomb panel. Compared with the prior art, it has the following advantages:

[0009] This all-aluminum glue-free honeycomb panel has high strength, excellent weather resistance and scratch and wear resistance, and achieves zero formaldehyde release, making it environmentally friendly and non-toxic, with superior performance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram showing the disassembled structure of this utility model.

[0012] In the diagram: 1. Honeycomb panel; 11. Scratch-resistant coating layer; 12. Honeycomb aluminum core layer; 13. Polymer cast film; 14. Honeycomb aluminum plate. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-2 This utility model provides a technical solution: an all-aluminum glue-free honeycomb panel, including a honeycomb panel 1, the honeycomb panel 1 comprising a symmetrically arranged anti-scratch coating layer 11, a honeycomb aluminum core layer 12, a polymer cast film 13 and a honeycomb aluminum plate 14, the polymer cast film 13 being a maleic anhydride grafted modified polyethylene material.

[0015] The scratch-resistant coating layer 11, the honeycomb aluminum core layer 12, and the polymer cast film 13 are symmetrically arranged from top to bottom.

[0016] The aluminum alloy panel is made of 3-series alloy with a hardness ≥ H22.

[0017] The scratch-resistant coating layer 11 is made of nano-modified polyester film.

[0018] The specific preparation steps are as follows:

[0019] Honeycomb aluminum panel 14 processing:

[0020] First, use 3-series aluminum alloy plates (such as 3003, 3105) with a thickness of 0.5-1.2mm. Then, degrease and clean the surface (alkaline cleaning agent, pH=9-11, temperature 50-60℃), and perform chemical oxidation treatment (chromate or phosphate conversion film, film thickness 0.5-1.5μm). Finally, dry the surface (80-100℃, 10-15 minutes).

[0021] Cellular aluminum core layer 12 treatment:

[0022] First, select 5052 or 3003 aluminum alloy honeycomb core with a pore size of 3-8mm and a wall thickness of 0.08-0.15mm. Degrease and clean the surface (same as panel treatment) and dry it (80-100℃, 10-15 minutes).

[0023] Preparation of polymer cast film 13:

[0024] First, select maleic anhydride-grafted modified polyethylene cast film with a thickness of 80-150μm, and cut it to match the panel size, leaving a 5-10mm margin at the edges.

[0025] Preparation of anti-scratch coating layer 11:

[0026] Nano-modified polyester film with a thickness of 50-100μm is selected and cut to match the panel size.

[0027] Layered assembly:

[0028] Stack the layers symmetrically in the following order (from top to bottom), referring to the diagram, and ensure that each layer is aligned, with smooth edges, and free of wrinkles or bubbles.

[0029] Hot pressing composite:

[0030] Equipment: Multi-layer hot press (with temperature and pressure control system)

[0031] Process parameters:

[0032] Temperature: 175-185℃ (preferably 180℃±2℃);

[0033] Pressure: 0.8-1.2MPa (preferably 1.0MPa);

[0034] Time: 2.5-3.5 hours (3 hours preferred);

[0035] Process control:

[0036] Heating rate: 2-3℃ / minute

[0037] Pressure fluctuation during the pressure holding stage: ≤ ±0.05MPa;

[0038] The cast film is completely melted and uniformly penetrates into the interface between the honeycomb core and the panel;

[0039] Cooling and shaping:

[0040] Method: Segmented cooling;

[0041] First stage: Allow to cool naturally to 100℃ (approximately 30 minutes);

[0042] Second stage: Forced air cooling to room temperature (20-25℃);

[0043] Objective: To prevent stress concentration caused by rapid cooling and ensure the bonding strength of the composite interface.

[0044] Post-processing:

[0045] Trimming: Trim the edges to the design size, remove any excess cast film, then polish or brush (depending on the application requirements), and finally clean the surface (wipe with a lint-free cloth).

[0046] The optimization range of process parameters is shown in the table below;

[0047]

[0048] This all-aluminum glue-free honeycomb panel achieves the following effects;

[0049] Low-temperature hot pressing: By modifying the cast film, the composite temperature is reduced to below 180℃, thus reducing the softening phenomenon of aluminum alloy during annealing.

[0050] Symmetrical structural design: symmetrical stacking of upper and lower layers eliminates stress deformation during hot pressing;

[0051] Interface reinforcement: After the cast film melts, it penetrates evenly into the interface between the honeycomb core and the panel, forming a dual combination mechanism of chemical bonding and mechanical anchoring;

[0052] Environmental friendliness: No adhesives are used throughout the process, achieving zero formaldehyde release.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully aluminum glue-free honeycomb panel, comprising a honeycomb panel (1), characterized in that: The honeycomb panel (1) includes a symmetrically arranged anti-scratch coating layer (11), a honeycomb aluminum core layer (12), a polymer cast film (13), and a honeycomb aluminum plate (14), wherein the polymer cast film (13) is a maleic anhydride grafted modified polyethylene material.

2. The all-aluminum glue-free honeycomb panel according to claim 1, characterized in that: The scratch-resistant coating layer (11), the honeycomb aluminum core layer (12), and the polymer cast film (13) are symmetrically arranged from top to bottom.

3. The all-aluminum glue-free honeycomb panel according to claim 2, characterized in that: The scratch-resistant coating layer (11) is made of nano-modified polyester film.

Images