Protection method in repairing process of transparent part of aviation equipment

Abstract

The invention relates to the field of aviation equipment transparent part repairing, in particular to a protection method in the aviation equipment transparent part repairing process, and the method comprises the steps that 1, the surface is cleaned; step 2, cleaning and wiping; 3, cutting the protective film; step 4, splicing; step 5, strickling; step 6, finishing; the protective film made of the special high-molecular polymer is adhered to the inner surface and the outer surface of the transparent part through intermolecular adsorption force, so that the protective function in the production, repair, transportation and assembly processes of the transparent part is realized, the original method of adhering three layers of protection on the surface is replaced, the production efficiency is improved, and the production cost is reduced. And the surface of the glass can be inspected in real time through the transparent protective film, including the inspection of optical performance, so that the repeated work that the original protection needs to be disassembled and assembled for many times is solved.

Description

Technical Field

[0001] This invention relates to the field of repairing transparent components of aviation equipment, specifically a protective method during the repair process of transparent components of aviation equipment. Background Technology

[0002] Protection is crucial during the repair of transparent components in domestic and international aviation equipment. In practice, the basic protection method for transparent components involves attaching a layer of anti-static velvet cloth to the glass surface and sealing the edges with tape, then attaching a layer of kraft paper to the outside of the velvet cloth and sealing the edges with tape. During assembly, to prevent mechanical damage, an additional layer of red steel paper is added and sealed with tape. The inner surface is treated similarly, but it needs to be secured with tape at the top to prevent the protective layer from falling off. This method involves applying three protective layers to both the inner and outer surfaces. However, this method cannot prevent punctures by sharp objects, has inherent flaws, and the transparent component, now contained within a black box, cannot be observed in real-time. Transparent components in aviation equipment are high-value products; damage can result in significant cost losses, making their protection extremely important. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a protective method for transparent components of aviation equipment during repair, the specific steps of which are as follows; Step 1: Clean the surface: Before applying the film to the transparent part, ensure that the environment and clothing are clean and that the surface of the transparent part is free of impurities and particles to prevent dirt from entering the interlayer when applying the film. Step 2, clean and dry: Place the transparent part on the workbench or machine, clean the outer surface of the transparent part, and then wipe the outer surface of the transparent part dry with a special anti-static cloth. Step 3: Cut the protective film: Lay the protective film flat on the front of the self-made craft template, and use a utility knife or scissors to pre-cut the protective film to the appropriate size according to the dimensions of the craft template; Step 4, splicing: The surface of the windshield transparent part needs to be protected as a whole. If splicing is necessary, the splicing point should ensure that it does not affect the optical performance of observation. The canopy glass is protected by splicing four symmetrical pieces. Step 5, Smoothing: When applying the protective film, first align the whole piece, then use a plastic scraper to smooth it from one edge to ensure that there are no air bubbles inside that would affect observation; Step 6, Trimming: After the protective film is applied, it can be trimmed according to the specific edge position of the transparent part. The edge of the protective film is sealed with 40mm wide masking tape.

[0004] Furthermore, in step 2, the transparent part is cleaned using cotton wool soaked in 5% neutral soapy water.

[0005] Furthermore, step 6 requires ensuring that the edge of the protective film is within 10-20mm of the overlap edge between the frame and the skin.

[0006] The beneficial effects of this invention are: This invention uses a protective film made of a special polymer to adhere to the inner and outer surfaces of a transparent part through intermolecular adsorption, thereby achieving a protective function during the production, repair, transportation, and assembly of the transparent part. This replaces the original method of applying three layers of protection to the surface, improves production efficiency, and allows for real-time inspection of the glass surface through the transparent protective film, including inspection of optical performance, thus solving the repetitive work of repeatedly disassembling and reassembling the original protection. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 This is a three-dimensional structural diagram of the transparent component of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the unprotected structure of the transparent component in direction A; Figure 3 For the present invention Figure 1 Dimensional diagram of the A-direction transparent protective structure; Figure 4 This is a schematic diagram of the process sample of the present invention; Figure 5 This is a schematic diagram of the pasting process of the present invention; Reference numerals: 1. Protective film; 2. Transparent component. Detailed Implementation

[0009] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0010] like Figures 1 to 5 As shown, a protective method for transparent parts 2 of aviation equipment during the repair process is described, and the specific steps are as follows; Step 1, Clean the surface: Before applying the film to the surface of transparent part 2, ensure that the environment and clothing are clean and that the surface of transparent part 2 is free of impurities and particles to prevent dirt from entering the interlayer when applying the film. Step 2, clean and dry: Place the transparent part 2 on the workbench or machine, clean the outer surface of the transparent part 2, and then wipe the outer surface of the transparent part 2 dry with a special anti-static cloth. Step 3: Cut protective film 1: Lay the protective film 1, the side to be pasted, flat on the front of the self-made process template. A schematic diagram of the specific process template structure can be found here. Figure 4Cut the protective film to the appropriate size using a utility knife or scissors according to the dimensions of the process template. Note: There is a hard film on the adhesive side. You need to peel off the hard film before pasting. Step 4, splicing: The surface of the windshield transparent part 2 needs to be fully protected. If splicing is necessary, the splicing point should ensure that it does not affect the optical performance of observation. The canopy glass is protected by splicing four symmetrical pieces. Step 5, Smooth: When applying protective film 1, first align the entire film, then use a plastic scraper to smooth it from one edge. Figure 5 As shown, ensure that there are no air bubbles inside that could affect observation; Step 6, Trimming: After the protective film 1 is applied, it can be trimmed according to the specific edge position of the transparent part 2. The edge of the protective film 1 is sealed with 40mm wide masking tape, providing one-time protection without disassembly. This one-time protection is maintained throughout the entire repair process.

[0011] The old protective methods inevitably require disassembly and reassembly during repair processes, such as trial assembly, inspection, and handover between upstream and downstream processes, which affects production efficiency.

[0012] like Figure 3 As shown in the figure, 'a' in the figure indicates the edge of the protective film, and 'b' in the figure indicates the edge of the transparent part.

[0013] This invention uses a protective film 1 made of a special polymer to adhere to the inner and outer surfaces of a transparent part 2 through intermolecular adsorption forces, thereby achieving a protective function during the production, repair, transportation and assembly of the transparent part 2. This replaces the original method of attaching three layers of protection to the surface, improves production efficiency, and allows for real-time inspection of the glass surface through the transparent protective film 1, including inspection of optical performance, thus solving the repetitive work of multiple disassembly and reassembly required by the original protection.

[0014] Step 1 requires protection to be completed in a constant temperature and humidity room to ensure no external contamination.

[0015] Specifically, in step 2, the transparent part 2 is cleaned with degreased cotton soaked in 5% neutral soapy water, which has a good cleaning effect.

[0016] In step 3, the size error between the protective film 1 and the process sample is controlled within ±10mm. The protective film 1 adopts an adhesive-free design and is adhered by intermolecular adsorption force. The 180° peel force is only 0.0074N / mm, leaving no residue and causing no damage to the surface of the transparent part 2.

[0017] As a specific embodiment of the present invention, the protective film 1 is a PE protective film, made of polyethylene, which possesses high-standard physical properties such as puncture resistance and abrasion resistance, meeting relevant national standards. Of course, the protective film 1 can also be replaced with an equivalent material that meets the basic requirements of the present invention, depending on actual needs.

[0018] In step 4, masking tape is used to seal the seam to prevent dust accumulation. As a specific embodiment, the masking tape used in this invention is 20mm wide. Of course, other sizes and specifications of masking tape can be selected according to actual needs, and all should be included within the scope of protection of this invention.

[0019] Specifically, step 5 is performed according to the standard that the diameter of the residual bubbles is no greater than 2mm. The purpose of this design is to reduce the generation of bubbles.

[0020] Step 6 requires ensuring that the edge of the protective film 1 overlaps with the edges of the skeleton and skin within a range of 10-20mm to prevent exceeding this range from affecting the overlap.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective method for transparent components of aircraft equipment during repair, characterized in that: The specific steps are as follows; Step 1, Clean the surface: Ensure the environment and clothing are clean before applying the film to the transparent parts (2); Step 2, clean and dry: Place the transparent part (2) on the workbench or machine, clean it and then wipe the outer surface of the transparent part (2) dry with a special antistatic cloth; Step 3: Cut the protective film (1): Lay the protective film (1) to be pasted flat on the front of the process template, and use a utility knife or scissors to pre-cut the protective film (1) to the appropriate size according to the size of the process template. Step 4, splicing: The surface of the windshield transparent part (2) needs to be protected as a whole. If splicing is necessary, the splicing point should ensure that it does not affect the optical performance of observation. The canopy glass is protected by symmetrical splicing of four pieces. Step 5, Smoothing: When pasting the protective film (1), first align the whole film and then use a plastic scraper to smooth it from one side edge to ensure that there are no air bubbles inside that would affect observation; Step 6, Trimming: After the protective film (1) is applied, trim it according to the edge position of the specific transparent part (2). Seal the edge of the protective film (1) with masking tape.

2. The protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: Step 1 requires the protection to be completed in a constant temperature and humidity room.

3. The protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: In step 2, the transparent part (2) is cleaned with degreased cotton soaked in 5% neutral soapy water.

4. The protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: The size error between the protective film (1) in step 3 and the process sample is controlled within ±10mm.

5. A protective method for transparent components of aviation equipment during repair according to claim 4, characterized in that: The protective film (1) is a PE protective film (1).

6. A protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: In step 4, masking tape is used to seal the seam.

7. A protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: Step 5 is performed according to the standard that the diameter of the residual bubbles is no greater than 2 mm.

8. A protective method for transparent components of aviation equipment during repair according to claim 1, characterized in that: Step 6 requires ensuring that the edge distance of the protective film (1) is within 10-20mm of the overlap edge between the frame and the skin.

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