Processing technology of high-strength wiredrawing LED aluminum-plastic composite panel

Abstract

The invention discloses a high-strength wiredrawing LED aluminum-plastic composite panel processing technology, and relates to the technical field of aluminum-plastic composite panels, and the high-strength wiredrawing LED aluminum-plastic composite panel processing technology comprises the following steps: S1, base material preparation; s2, preparing a core material; s3, wire drawing treatment; and S4, high-temperature compounding. According to the processing technology of the high-strength wiredrawing LED aluminum-plastic composite panel, the aluminum material, the PE core material and the polymeric membrane are firmly bonded under the action of continuous high heat and high pressure by utilizing a continuous hot pasting composite technology to form a flat panel, so that the precision error is + / -0.05 mm; and the flame-retardant polypropylene, the aluminum honeycomb core and the mineral polyether-ether-ketone are added into the compounded core material, so that the aluminum-plastic composite panel has flame-retardant and heat-insulating capabilities, is safe and non-toxic, can be applied to places with requirements on smoke density and toxicity, such as medium-and-high-end curtain walls, subways and airports, and has wide application prospects. And meanwhile, the design of keeping strength and light weight is convenient to install, the aluminum honeycomb core added in the core material is fast in heat conduction, the junction temperature of the LED is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum-plastic composite panels, in particular to a high-strength wiredrawing LED aluminum-plastic composite panel processing technology. BACKGROUND

[0002] An aluminum-plastic composite panel is composed of multiple layers of materials, with high-purity aluminum alloy plates as the upper and lower layers, a non-toxic low-density polyethylene (PE) core plate in the middle, and a protective film on the front surface. An LED aluminum-plastic composite panel is a high-performance composite material developed for LED lighting, advertising light boxes, high-end decorative panels, and other application scenarios. Through aluminum layers, precise wiredrawing surface treatment, high-rigidity flame-retardant core materials, and reinforced bonding processes, the mechanical strength, heat dissipation performance, flatness, and decorative texture are significantly improved.

[0003] The existing LED aluminum-plastic composite panels rely on thickened aluminum plates for strength, sacrificing lightness, resulting in heavy finished products that are difficult to install and use. Therefore, we propose a high-strength wiredrawing LED aluminum-plastic composite panel processing technology. SUMMARY

[0004] To address the deficiencies of the prior art, the present application provides a high-strength wiredrawing LED aluminum-plastic composite panel processing technology that solves the problems raised in the background art.

[0005] To achieve the above objectives, the present application is implemented through the following technical solutions: a high-strength wiredrawing LED aluminum-plastic composite panel processing technology, comprising the following steps: S1, base material preparation; S2, core material preparation; S3, wiredrawing treatment; S4, high-temperature compounding.

[0006] Further, the high-strength wiredrawing LED aluminum-plastic composite panel processing technology comprises the following specific steps: S1, base material preparation Select an appropriate aluminum plate base material that meets the standards and perform degreasing treatment to form a uniform base material. Simultaneously, detect the base material to exclude defects and improve the yield. S2, core material preparation Heat and extrude the flame-retardant polypropylene into a shape and attach a high-molecular film on both the front and back surfaces. Additionally, prepare aluminum honeycomb core into thin sheets and flame-retardant sheets. S3, wiredrawing treatment Adopt numerical control drawing machine to carry out straight line drawing along the same direction of base material, need to inspect the uniformity of the line after drawing, take the drawing aluminum plate as the upper aluminum plate and the lower aluminum plate respectively, and measure the depth using a caliper, ensure that there is no crack or missing drawing defects, on the surface of the aluminum-plastic plate after drawing treatment, reserve LED installation slot through die cutting process or laser cutting. LED assembly is fixed in the slot through conductive adhesive or welding method, and is connected with driving circuit. The electrical part needs to be tested for insulation and waterproof treatment (such as potting adhesive coating) to adapt to outdoor or high humidity environment; S4, high temperature compounding The aluminum plate base material, polypropylene core material and high molecular film are firmly bonded under the action of continuous high heat and high pressure by using machine continuous hot bonding compounding process, forming a flat plate surface.

[0007] Further, in S1, the degreasing is selected by using an ultrasonic cleaner and putting into acetone solution, and the base material is treated by using the ultrasonic cleaner, then the degreased base material is cleaned by using the ultrasonic cleaner by adding pure water, and then dried by hot air, wherein the ultrasonic time is usually 3-10 minutes, to avoid excessive cavitation damage to the fine drawing lines.

[0008] Further, in S2, the flame-retardant sheet is made of polyether ether ketone and mineral filler, and is compounded into a usable sheet by heating and extrusion.

[0009] Further, in S3, the drawing depth of the aluminum plate base material is 12 μm, which ensures the strength and gives a sense of high quality.

[0010] Further, in S4, the upper aluminum plate, high molecular film, flame-retardant sheet, polypropylene, flame-retardant sheet, high molecular film and lower aluminum plate are sequentially stacked during compounding, wherein the thickness of the aluminum plate base material is 0.4 mm, the thickness of the core material composed of high molecular film, flame-retardant sheet, polypropylene, flame-retardant sheet and high molecular film is 6 mm, and the compounding precision is a precision compounding processing technology with an error of ±0.05 mm.

[0011] The application provides a high-strength drawing LED aluminum-plastic composite plate processing technology, which has the following beneficial effects: the high-strength drawing LED aluminum-plastic composite plate processing technology uses continuous hot bonding compounding process technology to firmly bond aluminum material, PE core material and high molecular film under the action of continuous high heat and high pressure, forming a flat plate surface, so that the precision is a precision compounding processing technology with an error of ±0.05 mm, and the core material added in the compounding is flame-retardant polypropylene, aluminum honeycomb core and mineral polyether ether ketone, so that the aluminum-plastic composite plate has flame-retardant and heat-insulating ability, and is safe and non-toxic, so that it can be applied to high-end curtain walls, subways, airports and other places with requirements on smoke density and toxicity, while the design of strength and light weight not only facilitates installation, but also the aluminum honeycomb core added in the core material has fast heat conduction, reduces LED junction temperature and prolongs service life. DETAILED DESCRIPTION

[0012] A high-strength brushed LED aluminum-plastic composite panel processing technology includes the following steps: S1, Substrate preparation; S2, Core material preparation; S3, wire drawing process; S4, high-temperature composite.

[0013] Furthermore, the processing technology for the high-strength brushed LED aluminum-plastic composite panel includes the following specific steps: S1, Substrate Preparation Select suitable and standard-compliant aluminum plate substrates and degrease them to form a uniform base material. At the same time, inspect the substrates to eliminate defects and improve the yield rate. S2, Core Material Preparation Flame-retardant polypropylene is heated, extruded, flattened, and shaped, and a polymer film is attached to its front and back sides. At the same time, aluminum honeycomb core is prepared separately to form thin sheets and flame-retardant sheets. S3, wire drawing process A CNC wire drawing machine is used to draw straight wires along the same direction on the substrate. After drawing, the uniformity of the texture needs to be checked. Two wire-drawn aluminum plates are used as the upper and lower plates, and the depth is measured with calipers to ensure there are no broken lines or missing wires. LED mounting slots are pre-cut on the surface of the wire-drawn aluminum composite panel using die-cutting or laser cutting. LED components are fixed to the slots using conductive adhesive or welding and connected to the driver circuit. The electrical components require insulation testing and waterproofing treatment (such as potting compound coating) to withstand outdoor or high-humidity environments. S4, High Temperature Composite By using a continuous hot-bonding lamination process, the aluminum substrate, polypropylene core material, and polymer film are firmly bonded together under continuous high heat and pressure to form a flat panel.

[0014] Furthermore, in step S1, an ultrasonic cleaner is used for degreasing, and acetone solution is added. The substrate is degreased using the ultrasonic cleaner. Then, pure water is added to the ultrasonic cleaner to clean the degreased substrate, and it is then quickly dried with hot air. The ultrasonic time is usually 3-10 minutes to avoid excessive cavitation that could damage the fine wire drawing texture.

[0015] Furthermore, the flame-retardant sheet in S2 is a usable sheet made by adding mineral fillers to polyether ether ketone and then heating and extruding it.

[0016] Furthermore, the aluminum substrate in S3 has a wire drawing depth of 12μm, which ensures strength while giving it a textured and high-end feel.

[0017] Furthermore, in the S4 composite process, the upper aluminum plate, polymer film, flame retardant sheet, polypropylene, flame retardant sheet, polymer film and lower aluminum plate are stacked sequentially. The aluminum plate substrate has a thickness of 0.4 mm, and the core material composed of polymer film, flame retardant sheet, polypropylene, flame retardant sheet and polymer film has a thickness of 6 mm. Moreover, the composite accuracy is achieved through a precision composite processing technology with an error of ±0.05 mm.

[0018] In summary, the processing technology for high-strength brushed LED aluminum-plastic composite panels includes the following specific steps: S1. Substrate Preparation: Select a suitable aluminum plate substrate that meets the standards and degrease it to form a uniform base material. At the same time, the substrate is inspected to eliminate defects and improve the yield. Degreasing is carried out using an ultrasonic cleaner with acetone solution. The substrate is then degreased using an ultrasonic cleaner with pure water added. After cleaning the degreased substrate, it is quickly dried with hot air. The ultrasonic time is usually 3-10 minutes to avoid excessive cavitation and damage to the fine wire drawing texture. S2. Core material preparation: Flame-retardant polypropylene is heated, extruded, flattened, and molded, and a polymer film is laminated on both sides. At the same time, aluminum honeycomb core is prepared into thin sheets and flame-retardant sheets. The flame-retardant sheets are made by adding mineral fillers to polyether ether ketone and then heating and extruding them into usable thin sheets. S3. Wire Drawing Process: A CNC wire drawing machine is used to draw straight wires along the same direction on the substrate. After drawing, the uniformity of the texture needs to be checked. Brushed aluminum plates are used as the upper and lower aluminum plates, and the depth is measured with calipers to ensure there are no broken lines or missing wires. LED mounting slots are pre-cut on the surface of the wire-drawn aluminum composite panel using die-cutting or laser cutting. LED components are fixed to the slots using conductive adhesive or welding and connected to the drive circuit. The electrical components require insulation testing and waterproofing treatment (such as potting compound coating) to withstand outdoor or high-humidity environments. The wire drawing depth of the aluminum substrate is 12μm to ensure strength while giving it a textured and high-end feel. S4. High-Temperature Lamination: Utilizing a continuous hot-bonding lamination process, the aluminum substrate, polypropylene core material, and polymer film are firmly bonded under continuous high heat and pressure to form a flat panel. The lamination process involves stacking the upper aluminum plate, polymer film, flame-retardant sheet, polypropylene, flame-retardant sheet, polymer film, and lower aluminum plate in sequence. The aluminum substrate has a thickness of 0.4mm, and the core material, composed of polymer film, flame-retardant sheet, polypropylene, flame-retardant sheet, and polymer film, has a thickness of 6mm. Furthermore, the lamination accuracy is a precision lamination processing technology with an error of ±0.05mm.

Claims

1. A processing technology for high-strength brushed LED aluminum-plastic composite panels, characterized in that, Includes the following steps: S1, Substrate preparation; S2, Core material preparation; S3, wire drawing process; S4, high-temperature composite.

2. The processing technology for a high-strength brushed LED aluminum-plastic composite panel according to claim 1, characterized in that, The processing technology for a high-strength brushed LED aluminum-plastic composite panel includes the following specific steps: S1, Substrate Preparation Select suitable and standard-compliant aluminum plate substrates and degrease them to form a uniform base material. At the same time, inspect the substrates to eliminate defects and improve the yield rate. S2, Core Material Preparation Flame-retardant polypropylene is heated, extruded, flattened, and shaped, and a polymer film is attached to its front and back sides. At the same time, aluminum honeycomb core is prepared separately to form thin sheets and flame-retardant sheets. S3, wire drawing process A CNC wire drawing machine is used to draw straight wires along the same direction on the substrate. After drawing, the uniformity of the texture needs to be checked. Two wire-drawn aluminum plates are used as the upper and lower plates, and the depth is measured with calipers to ensure there are no broken lines or missing wires. LED mounting slots are pre-cut on the surface of the wire-drawn aluminum composite panel using die-cutting or laser cutting. LED components are fixed to the slots using conductive adhesive or welding and connected to the driver circuit. The electrical components require insulation testing and waterproofing treatment (such as potting compound coating) to withstand outdoor or high-humidity environments. S4, High Temperature Composite By using a continuous hot-bonding lamination process, the aluminum substrate, polypropylene core material, and polymer film are firmly bonded together under continuous high heat and pressure to form a flat panel.

3. The processing technology for a high-strength brushed LED aluminum-plastic composite panel according to claim 2, characterized in that: In step S1, an ultrasonic cleaner is used to degrease the substrate by adding acetone solution. The substrate is then cleaned with pure water using the ultrasonic cleaner and quickly dried with hot air. The ultrasonic time is usually 3–10 minutes to avoid excessive cavitation that could damage the fine brushed texture.

4. The processing technology for a high-strength brushed LED aluminum-plastic composite panel according to claim 2, characterized in that: The flame-retardant sheet in S2 is made by adding mineral fillers to polyetheretherketone and then heating and extruding it into a usable sheet.

5. The processing technology for a high-strength brushed LED aluminum-plastic composite panel according to claim 2, characterized in that: The aluminum substrate in S3 has a wire drawing depth of 12μm, which ensures strength while giving it a textured and high-end feel.

6. The processing technology for a high-strength brushed LED aluminum-plastic composite panel according to claim 2, characterized in that: In the S4 composite process, the upper aluminum plate, polymer film, flame retardant sheet, polypropylene, flame retardant sheet, polymer film and lower aluminum plate are stacked in sequence. The aluminum plate substrate is 0.4 mm thick, and the core material composed of polymer film, flame retardant sheet, polypropylene, flame retardant sheet and polymer film is 6 mm thick. Moreover, the composite accuracy is a precision composite processing technology with an error of ±0.05 mm.