Aluminum honeycomb panel six-face seamless integrated forming paint spraying process

Abstract

The invention relates to an aluminum honeycomb panel six-face seamless integrated forming paint spraying process which comprises the steps of plain panel inspection, cleaning, anti-corrosion treatment, edge sealing and adhesion primer polishing, then polishing, spraying of high-definition primer, polishing and color repairing, and finally spraying of finish paint after polishing is completed. Then the upper panel and the lower panel are folded into a point to play a supporting role, and then edge sealing is carried out, so that the connected seam is not located at the edge seam position of each aluminum honeycomb panel, in this way, the internal seamless integrated forming process is achieved through multiple times of polishing and primer spraying, the room temperature is adjusted through heat of a drying box, and dust prevention operation is carried out through liquid obtained after cleaning; the paint spraying six surfaces are seamlessly and integrally formed, the overall performance is good, resources are saved, and the coating smoothness in the spraying process is good.

Description

Technical Field

[0001] The invention relates to the technical field of paint spraying of aluminum honeycomb panels, in particular to a paint spraying process for six-sided seamless integrated molding of aluminum honeycomb panels. Background Art

[0002] The honeycomb structure has a large strength / weight ratio and can meet the requirements of greater strength with a smaller cross-section and can significantly reduce the weight of the structure itself. Therefore, the honeycomb structure has the advantages of good structural stability, impact resistance and good buffering performance. The existing aluminum honeycomb panels are used in the furniture industry. In order to adapt to different aesthetic requirements, the surface of the aluminum honeycomb panels needs to be recolored and painted. However, due to the characteristics of the edge position of the aluminum honeycomb panels, side seams are easily formed, which affects the appearance and performance of aluminum alloy furniture.

[0003] Patent No. CN202210562326.8 discloses a high-strength aluminum honeycomb panel for high-speed rail and its processing technology, which is through a body, and a sealing groove is left between two of the bodies, the body includes a substrate, the substrate includes an intermediate plate, the top outer wall and the bottom outer wall of the intermediate plate are both provided with grooves, and one of the inner walls of one side of the groove is provided with a cavity that is mutually connected with the other groove, the two grooves are filled with adhesive glue, the cavity is filled with sound insulation glue, and panels fixedly connected with the adhesive glue are placed on the top outer wall and the bottom outer wall of the intermediate plate. The beneficial effect of the present invention is: when using the aluminum honeycomb panel, the structure composed of the adhesive glue and the sound insulation glue filled in the grooves and cavities can reduce the weight of the aluminum honeycomb panel while ensuring the sound insulation effect of the aluminum honeycomb panel, thereby achieving the purpose of lightweighting the aluminum honeycomb panel, but the process has the following problems: first, the polishing effect is not good, and second, the splicing cannot achieve six-sided seamless. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art. By planing off a portion of the aluminum honeycomb core at the edge of the aluminum honeycomb panel, folding the upper and lower panels inward a little to play a supporting role, and then sealing the edges, the connected joints are not located at the edge seam positions of each aluminum honeycomb panel. In this way, multiple polishing and primer spraying are used to achieve a seamless one-piece molding process inside, and the heat of the drying box is used to adjust the room temperature, and the cleaned liquid is used for dust avoidance operation, thereby solving the technical problems in the prior art that the paint spraying edge seams are poor in aesthetics, affecting the overall performance, wasting resources, and the coating smoothness is poor during the spraying process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The paint spraying process of the six-sided seamless integrated aluminum honeycomb panel includes step S1: incoming material inspection, surface inspection of the aluminum honeycomb panel to be sprayed;

[0007] Step S2: Cleaning the adhesive film of the raw board and performing surface cleaning on the aluminum honeycomb board, including but not limited to physical cleaning and chemical cleaning;

[0008] Step S3: Anti-corrosion treatment of the plain plate, using electrochemical anti-corrosion, physical anti-corrosion or chemical anti-corrosion methods;

[0009] Step S4: polishing the surface of the plain board;

[0010] Step S5: edge sealing, manually edge sealing the sides of the plain board;

[0011] Step S6: attaching the primer, and performing a drying process after the primer is sprayed, including but not limited to oven drying;

[0012] Step S7: polishing, polishing the aluminum honeycomb panel with the primer;

[0013] Step S8: spraying high-definition primer and drying, including but not limited to oven drying;

[0014] Step S9: polishing, polishing the high-definition primer layer;

[0015] Step S10: color correction, color adjustment, topcoat, and drying;

[0016] Step S11: Sanding, use 320# sandpaper to sand lightly, but do not penetrate the underlying color;

[0017] Step S12: spraying water-based topcoat and drying;

[0018] Step S13: Finished product inspection, packaging and storage.

[0019] As a preferred embodiment, the physical cleaning in step 2 includes scrubbing, brushing or rinsing the honeycomb aluminum plate with a detergent and water, wherein the rinsing includes but is not limited to rinsing with a high-pressure water gun, and the chemical cleaning includes cleaning by acid or alkaline cleaning. After cleaning, a thorough rinsing is performed to prevent the detergent from remaining on the surface.

[0020] As a preferred embodiment, in step S5, a portion of the aluminum honeycomb core at the edge of the aluminum honeycomb panel is first planed off, and then the upper and lower panels are folded in a little to play a supporting role, and finally ordinary edge sealing is performed.

[0021] As a preferred embodiment, in the oven drying process in step S6, the oven temperature is adjusted, and the excess heat of the oven temperature is dissipated in the workshop to adjust the room temperature, and the environment is kept dry during the primer spraying process.

[0022] As a preferred method, in step S4, the plain board is polished with 180#-240# sandpaper, and the edges and corners are polished first, and then the whole board is polished. The whole board is polished with a grinder to ensure the final flatness. In step S7, 320# sandpaper is used for fine and light polishing. In step S9, 320# sandpaper is used for the first polishing, and then 400# and 600# sandpaper are used for the second polishing.

[0023] As a preferred embodiment, before spraying the water-based topcoat in step S12, the paint is first filtered, and then the ground is sprinkled with water to control the indoor humidity.

[0024] As a preferred embodiment, the paint is first filtered in steps S6, S8, S10 and step S12, filtered through a 200-mesh filter, and then fully stirred for 10-12 seconds. The paint is allowed to stand for 10-15 minutes before use. The paint is poured into a paint spraying device and sprayed evenly on the surface of the aluminum honeycomb panel using a nozzle to ensure uniformity of the spraying thickness.

[0025] Preferably, the thickness of each layer in steps S6, S8, S10 and S12 is less than or equal to 50μ.

[0026] As another preferred embodiment, the water after rinsing in step S2 is filtered and evaporated in an oven, and the collected distilled water is used for ground sprinkling in step S12.

[0027] Beneficial effects of the present invention:

[0028] (1) In the present invention, step S2 is set to clean the bare plate to remove grease, dust and dirt on the surface. The physical method is to use a detergent and a brush to scrub, brush and rinse the honeycomb aluminum plate. The chemical method uses acid washing or alkali washing. Acid washing can remove the oxide layer on the surface of the aluminum metal to make the surface purer, and alkali washing can remove oil and other organic matter on the surface. Regardless of whether it is acid washing, alkali washing or physical washing, it is necessary to rinse thoroughly after cleaning to prevent the detergent from remaining on the surface. The water after cleaning is collected and filtered through the temperature of the drying box for evaporation, so that resources can be effectively and reasonably utilized and costs can be reduced.

[0029] (2) In the present invention, the primer or topcoat is poured into the paint spraying equipment and sprayed evenly on the surface of the aluminum plate using a spray nozzle. The spraying of the topcoat should be kept at a time interval with the spraying of the primer to avoid the problem of interlayer failure of the coating. When spraying the primer, the uniformity of the spraying thickness should be maintained, and care should be taken to avoid dripping or bubbling of the coating.

[0030] (3) In the present invention, a drying process is provided. After the primer is applied, a drying process needs to be performed. Natural drying, drying in a drying oven, ultraviolet drying or the like can be used. Since the room temperature needs to be controlled, a drying oven is used for drying. The temperature of the room temperature can be controlled by utilizing the temperature of the drying oven. Then, the waste water after cleaning the aluminum plate is heated, evaporated and collected by utilizing the operation of the drying oven, and then used to control the temperature and humidity in the room.

[0031] In summary, this process has the advantages of energy saving, six-sided seamless one-piece molding, good coating smoothness, and convenient control of room temperature and humidity. It is particularly suitable for the field of aluminum honeycomb panel paint spraying technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is a schematic diagram of the position structure of the drying box and the waste liquid recovery cabin in the present invention.

[0035] Figure 3 It is a schematic structural diagram of the steps of controlling room temperature and controlling humidity in the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0037] Embodiment 1

[0038] like Figures 1 to 3 As shown, the present invention provides a six-sided seamless one-piece paint spraying process for aluminum honeycomb panels, comprising step S1: incoming material inspection, surface inspection of the aluminum honeycomb panels to be sprayed;

[0039] Step S2: Cleaning the adhesive film of the raw board and performing surface cleaning on the aluminum honeycomb board, including but not limited to physical cleaning and chemical cleaning;

[0040] Step S3: Anti-corrosion treatment of the plain plate, using electrochemical anti-corrosion, physical anti-corrosion or chemical anti-corrosion methods;

[0041] Step S4: polishing the surface of the plain board;

[0042] Step S5: edge sealing, manually edge sealing the sides of the plain board;

[0043] Step S6: attaching the primer, and performing a drying process after the primer is sprayed, including but not limited to oven drying;

[0044] Step S7: polishing, polishing the aluminum honeycomb panel with the primer;

[0045] Step S8: spraying high-definition primer and drying, including but not limited to oven drying;

[0046] Step S9: polishing, polishing the high-definition primer layer;

[0047] Step S10: color correction, color adjustment, topcoat, and drying;

[0048] Step S11: Sanding, use 320# sandpaper to sand lightly, but do not penetrate the underlying color;

[0049] Step S12: spraying water-based topcoat and drying;

[0050] Step S13: Finished product inspection, packaging and storage.

[0051] Furthermore, the physical cleaning in step 2 includes scrubbing, brushing or rinsing the honeycomb aluminum plate with a detergent and water, wherein rinsing includes but is not limited to rinsing with a high-pressure water gun, and chemical cleaning includes cleaning by acid or alkaline washing. After cleaning, a thorough rinse is performed to prevent the detergent from remaining on the surface. Acid washing can remove the oxide layer on the surface of the aluminum metal to make the surface purer, and alkaline washing can remove oil and other organic matter on the surface. After cleaning, a thorough rinse must be performed, and the rinsed liquid is recycled. The water in the chamber is placed above the drying box to increase the temperature, and the water evaporated by heating and heating is collected and recycled to control the indoor humidity, save energy, and effectively utilize the temperature of the drying box.

[0052] Furthermore, in step S5, a portion of the aluminum honeycomb core at the edge of the aluminum honeycomb panel is first planed off, and then the upper and lower panels are folded in a little to play a supporting role, and finally ordinary edge banding is performed. In this way, the upper and lower panels are folded in so that the connection position of the aluminum honeycomb panel and the edge banding can be at the side instead of at the vertex, which is more convenient for polishing and spraying paint, ensuring that the overall six sides are seamlessly integrated.

[0053] Furthermore, in step S6, the oven drying process adjusts the oven temperature, and the excess heat of the oven temperature is dissipated in the workshop to adjust the room temperature. The environment is kept dry during the primer spraying process. The drying box needs to be heated to work, and the heat dissipation of the drying box will affect the surrounding ambient temperature. The use of the drying box to dry the primer can effectively utilize the heat dissipation to increase the ambient temperature, and then the waste liquid treatment chamber placed on the upper end of the drying box is used to evaporate the waste liquid using the temperature of the drying box, effectively utilizing the waste liquid, and then using the waste liquid to control the temperature of the drying box, thereby controlling the ambient temperature. The evaporated collected liquid can also be sprinkled on the ground to control the indoor humidity, achieving multiple goals at one stroke, and the principle is simple.

[0054] Furthermore, in step S4, 180#-240# sandpaper is used for polishing the plain board, and the edges and corners are polished first, and then the whole board is polished. A grinder is used for polishing the whole board to ensure the final flatness. In step S7, 320# sandpaper is used for fine grinding and light grinding. In step S9, 320# sandpaper is used for the first grinding, and then 400# and 600# sandpaper are used for the second grinding. Step S4 is used for the first grinding, step S7 is used for the second grinding, step S9 is used for the third grinding, and finally step S11 is used for the fourth grinding to ensure the adhesion between the paint layers, ensure the integrated molding of the paint layers, and ensure that the six sides of the entire aluminum honeycomb panel are seamless.

[0055] Furthermore, in step S12, the paint is filtered before spraying the water-based topcoat, and then the ground is sprinkled with water to control the indoor humidity and prevent dust from flowing in the workplace.

[0056] Furthermore, the paint is first filtered in steps S6, S8, S10 and S12, filtered through a 200-mesh filter, and then fully stirred for 10-12 seconds. The paint is allowed to stand for 10-15 minutes before use. The paint is poured into a spraying device and sprayed evenly on the surface of the aluminum honeycomb panel using a nozzle to ensure uniformity of the spraying thickness. An appropriate amount of diluent is added as needed to reduce the construction viscosity of the paint, thereby ensuring good fluidity of the coating and strong adhesion of the coating.

[0057] Furthermore, the thickness of each layer in steps S6, S8, S10 and step S12 is less than or equal to 50μ, which controls the spraying thickness of the primer, strengthens the adhesion of the primer and the topcoat, ensures the fit between the primer and the primer, and between the primer and the topcoat, and reduces the occurrence of surface whitening and peeling.

[0058] Furthermore, the water after rinsing in step S2 is filtered and evaporated in an oven, and the collected distilled water is used for ground sprinkling in step S12. The heat of the drying box can be used to dry the coating and control the indoor temperature. Then, in conjunction with the waste liquid recovery cabin placed on the upper end of the drying box, the waste liquid is evaporated and collected, and the evaporation controls the indoor humidity. The collection is used for ground sprinkling and dust reduction, and the functions are diverse.

[0059] Working process: First, inspect the incoming materials. If they are qualified, clean the honeycomb aluminum panels to remove grease, dust and dirt on the surface. Use detergent and water to scrub, brush or rinse the honeycomb aluminum panels, or use acid or alkali washing to clean them. Acid washing can remove the oxide layer on the surface of aluminum metal to make the surface purer, and alkali washing can remove oil and other organic matter on the surface. After cleaning, rinse thoroughly to prevent the detergent from remaining on the surface. Collect the rinsed liquid into the waste liquid recovery bin, which is placed at the upper end of the drying box. Then, the aluminum honeycomb panels are treated with anti-corrosion, and electrochemical anti-corrosion is used. Corrosion, physical anti-corrosion or chemical anti-corrosion treatment, then polish the plain board to facilitate the attachment of primer, then edge sealing, planing off a part of the aluminum honeycomb core on the edge of the aluminum honeycomb panel, and then folding the upper and lower panels in a little to play a supporting role, and finally performing ordinary edge sealing, so that the upper and lower panels are folded in so that the connection position of the aluminum honeycomb panel and the edge sealing can be at the side, rather than at the vertex, which is more convenient for polishing and spraying paint, ensuring the seamless integration of the six sides, and then spraying primer, drying, drying in a drying oven, polishing, then applying primer, polishing, color repair, polishing and finally applying topcoat;

[0060] It is worth mentioning that the water after rinsing in step S2 is filtered and evaporated in an oven, and the collected distilled water is used for ground sprinkling in step S12. The heat of the drying box can be used to dry the coating and control the indoor temperature. Then, in conjunction with the waste liquid recovery cabin placed on the top of the drying box, the waste liquid is evaporated and collected, and the evaporation controls the indoor humidity. The collection is used for ground sprinkling and dust reduction, and it has multiple functions.

[0061] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front and back", "left and right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0062] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0063] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Six-sided seamless one-piece aluminum honeycomb panel paint spraying process, characterized by: include Step S1: Incoming material inspection, surface inspection of the aluminum honeycomb panel to be sprayed; Step S2: Cleaning the adhesive film of the raw board and performing surface cleaning on the aluminum honeycomb board, including but not limited to physical cleaning and chemical cleaning; Step S3: Anti-corrosion treatment of the plain plate, using electrochemical anti-corrosion, physical anti-corrosion or chemical anti-corrosion methods; Step S4: polishing the surface of the plain board; Step S5: edge sealing, manually edge sealing the sides of the plain board; Step S6: attaching the primer, and performing a drying process after the primer is sprayed, including but not limited to oven drying; Step S7: polishing, polishing the aluminum honeycomb panel with the primer; Step S8: spraying high-definition primer and drying, including but not limited to oven drying; Step S9: polishing, polishing the high-definition primer layer; Step S10: color correction, color adjustment, topcoat, and drying; Step S11: Sanding, use 320# sandpaper to sand lightly, but do not penetrate the underlying color; Step S12: spraying water-based topcoat and drying; Step S13: Finished product inspection, packaging and storage.

2. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: The physical cleaning in step 2 includes scrubbing, brushing or rinsing the honeycomb aluminum plate with a detergent and water, wherein the rinsing includes but is not limited to rinsing with a high-pressure water gun, and the chemical cleaning includes cleaning by acid or alkaline cleaning. After cleaning, a thorough rinse is performed to prevent the detergent from remaining on the surface.

3. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: In the step S5, a portion of the aluminum honeycomb core at the edge of the aluminum honeycomb panel is first planed off, and then the upper and lower panels are folded in a little to play a supporting role, and finally ordinary edge sealing is performed.

4. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: In step S6, the oven temperature is adjusted during the oven drying process, and the excess heat of the oven temperature is dissipated in the workshop to adjust the room temperature, and the environment is kept dry during the primer spraying process.

5. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: In step S4, the plain board is polished with 180#-240# sandpaper, first the edges and corners are polished, and then the whole board is polished. The whole board is polished with a grinder to ensure the final flatness. In step S7, 320# sandpaper is used for fine grinding and light grinding. In step S9, 320# sandpaper is used for the first grinding, and then 400# and 600# sandpaper are used for the second grinding.

6. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: In the step S12, the paint is filtered before spraying the water-based topcoat, and then the ground is sprinkled with water to control the indoor humidity.

7. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: In the steps S6, S8, S10 and S12, the paint is first filtered through a 200-mesh filter, and then fully stirred for 10-12 seconds. The paint is allowed to stand for 10-15 minutes before use. The paint is poured into the paint spraying equipment and sprayed evenly on the surface of the aluminum honeycomb panel using a nozzle to ensure uniformity of the spraying thickness.

8. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1 is characterized in that: The thickness of each layer in steps S6, S8, S10 and S12 is less than or equal to 50μ.

9. The paint spraying process for seamlessly forming six-sided aluminum honeycomb panels according to claim 1, characterized in that: The water after rinsing in step S2 is filtered and evaporated in an oven, and the collected distilled water is used for ground sprinkling in step S12.

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