Installation mode of aviation floor beam anti-corrosion single-sided adhesive tape reinforced net layer

Abstract

The invention discloses an aviation floor beam anti-corrosion single-sided adhesive tape reinforced net layer mounting mode, and relates to the technical field of aviation engineering, and the aviation floor beam anti-corrosion single-sided adhesive tape reinforced net layer mounting mode comprises the following steps: providing a base material with a polytetrafluoroethylene (PTFE) film on one side, coating a layer of thin polyurethane same-series adhesive on the surface of the PTFE film, and then coating a layer of polyurethane same-series adhesive on the surface of the base material; then, glass fiber gridding cloth is attached to the PTFE film coated with the polyurethane glue, and a reinforced net layer structure is formed; the coating thickness of the polyurethane same-series adhesive is 0.01 mm to 0.1 mm, so that good adhesion between the gridding cloth and the PTFE film is ensured; before the glass fiber gridding cloth is attached, the surface of the PTFE film is cleaned, so that dirt and impurities on the surface are removed, and the bonding effect is improved; the warp and weft density and strength of the glass fiber mesh cloth are adjusted according to the bearing requirement of the aviation floor beam so as to ensure the structural stability and strength of the reinforced mesh layer, and the effects that wrinkles are avoided, the corrosion resistance is improved, the installation process is simplified, and the application range is wide are achieved through the mode.

Description

Technical Field

[0001] The invention relates to the technical field of aviation engineering, and in particular to an installation method for an aviation floor beam anti-corrosion single-sided adhesive tape reinforced mesh layer. Background Art

[0002] In the aviation field, floor beams are important structural components inside the cabin of passenger aircraft and need to have good anti-corrosion properties to ensure the safety and service life of the aircraft. Traditional anti-corrosion measures for aviation floor beams mostly use anti-corrosion coatings or anti-corrosion tapes. Among them, polyurethane anti-corrosion tapes are widely used in the anti-corrosion treatment of aviation floor beams due to their good elasticity, corrosion resistance and flame retardant properties.

[0003] However, existing polyurethane anti-corrosion tapes have some problems during installation. Traditional reinforcement grids use glass fiber or nylon mesh cloth, which is mechanically fixed to the tape substrate. However, during the mixing and curing process of the polyurethane gel, the polyurethane material will penetrate between the mesh and the polytetrafluoroethylene (PTFE) film, resulting in inconsistent hardness inside and outside the tape during winding and construction. This hardness difference will cause a large number of wrinkles on the surface of the tape, seriously affecting the use effect and appearance quality of the polyurethane tape. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide an installation method for an aviation floor beam anti-corrosion single-sided tape reinforced mesh layer, aiming to solve the wrinkle problem of the polyurethane tape caused by the difference in material hardness during the installation process.

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

[0006] A method for installing an aviation floor beam anti-corrosion single-sided tape reinforced mesh layer comprises the following steps: providing a substrate having a polytetrafluoroethylene (PTFE) film on one side, coating a thin layer of polyurethane adhesive of the same series on the surface of the PTFE film, and then attaching a glass fiber mesh cloth to the PTFE film coated with the polyurethane adhesive to form a reinforced mesh layer structure.

[0007] As a preferred technical solution of the present invention, the coating thickness of the polyurethane adhesive of the same series is 0.01 mm to 0.1 mm to ensure good adhesion between the mesh cloth and the PTFE film.

[0008] As a preferred technical solution of the present invention, before attaching the glass fiber mesh cloth, it also includes a step of cleaning the surface of the PTFE film to remove dirt and impurities on the surface and improve the bonding effect.

[0009] As a preferred technical solution of the present invention, the warp and weft density and strength of the glass fiber mesh cloth are adjusted according to the load-bearing requirements of the aviation floor beam to ensure the structural stability and strength of the reinforced mesh layer.

[0010] As a preferred technical solution of the present invention, after attaching the glass fiber mesh cloth and waiting for the polyurethane glue to initially solidify, the prepared polyurethane two-component gel is poured and flattened to form a polyurethane gel layer, thereby completing the preparation of the single-sided polyurethane tape.

[0011] As a preferred technical solution of the present invention, the mixing ratio and curing conditions of the polyurethane two-component gel are adjusted according to the specific use environment and performance requirements to meet the anti-corrosion and flame retardant requirements of aviation floor beams.

[0012] As a preferred technical solution of the present invention, during the installation process, it also includes a step of pre-bending the reinforcing mesh structure to adapt to the bending requirements of the aviation floor beams during the installation process and reduce wrinkles on the surface of the tape.

[0013] As a preferred technical solution of the present invention, the reinforcing mesh structure further includes a step of performing a quality inspection on the reinforcing mesh structure before being installed on the aviation floor beam to ensure that the integrity and performance of the reinforcing mesh structure meet the requirements.

[0014] As a preferred technical solution of the present invention, the quality inspection steps include but are not limited to appearance inspection of the reinforced mesh layer structure, bonding strength test, flame retardant performance test and corrosion resistance test.

[0015] As a preferred technical solution of the present invention, the aviation floor beam anti-corrosion single-sided tape reinforced mesh layer installation method is suitable for various types of civil aircraft cabin interior floor beams to improve the anti-corrosion performance and structural stability of the floor beams.

[0016] The present invention has the following benefits:

[0017] Avoid wrinkles: By first coating a thin layer of polyurethane adhesive of the same series on the surface of the PTFE film, and then attaching the glass fiber mesh cloth on it, the connection strength between the film and the adhesive can be enhanced, thereby minimizing the problem of wrinkles on the surface of the tape caused by differences in material hardness. This method allows the tape to maintain consistent hardness inside and outside during winding and construction, improving the flatness and use effect of the tape;

[0018] Improved anti-corrosion performance: The polyurethane anti-corrosion tape itself has good anti-corrosion performance, and the present invention further improves the anti-corrosion performance of the tape by improving the installation method. The setting of the reinforced mesh layer makes the tape stick more firmly to the floor beam, effectively preventing the corrosive medium from corroding the floor beam;

[0019] Simplified installation process: The installation method of the present invention is relatively simple and easy to operate. By applying glue and attaching mesh cloth, the installation process can be greatly simplified and the installation cost can be reduced. At the same time, this method is also convenient for maintenance and replacement, which improves work efficiency;

[0020] Wide range of applications: The aviation floor beam anti-corrosion single-sided adhesive tape reinforcement mesh installation method of the present invention is not only suitable for the anti-corrosion treatment of floor beams inside the cabin of civil aviation passenger aircraft, but can also be widely used in other metal structural parts that require anti-corrosion treatment, such as aircraft cargo holds, fuselage wall panels, etc.

[0021] In summary, the present invention proposes a novel installation method of an aviation floor beam anti-corrosion single-sided tape reinforced mesh layer, which has the effects of avoiding wrinkles, improving anti-corrosion performance, simplifying installation technology and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of an aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer.

[0023] Figure 2 The present invention is a flow chart of a method for installing a reinforced mesh layer of an aviation floor beam with an anti-corrosion single-sided adhesive tape.

[0024] In the figure: 1. Base material; 2. Polyurethane adhesive of the same series; 3. Mesh cloth. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] Example 1, please refer to Figure 1-Figure 2 , a method for installing a reinforced mesh layer of an aviation floor beam anti-corrosion single-sided tape, specifically comprising the following steps: First, prepare a substrate 1 with a polytetrafluoroethylene (PTFE) film, the substrate 1 having good corrosion resistance and lubricity, and being suitable as a base layer of the aviation floor beam anti-corrosion tape. Then, evenly coat the surface of the PTFE film with a thin layer of polyurethane adhesive 2 of the same series as an adhesive. Finally, attach a glass fiber mesh cloth 3 to the PTFE film coated with the polyurethane adhesive, and through the bonding effect of the polyurethane adhesive, form a reinforced mesh structure, thereby improving the strength and corrosion resistance of the floor beam;

[0027] Among them, the PTFE film has excellent corrosion resistance, heat resistance and low friction, and can provide a good adhesion surface for the subsequently coated polyurethane tape; the polyurethane same series glue 2 can enhance the bonding force between the PTFE film and the subsequently attached glass fiber mesh cloth 3 to prevent the mesh cloth 3 from falling off during the subsequent construction process. The glass fiber mesh cloth 3 has good strength and toughness, which can increase the overall strength of the polyurethane tape and improve the bearing capacity of the floor beam; the gelled polyurethane same series glue 2 can further increase the bonding force with the glass fiber mesh cloth 3 and the PTFE film to ensure the stable adhesion of the subsequent polyurethane gel layer; the polyurethane two-component gel has good elasticity and corrosion resistance after curing, and can form a dense anti-corrosion layer to protect the floor beam from corrosion; the cured polyurethane tape reinforcement mesh layer is tightly combined with the floor beam, has excellent anti-corrosion performance and bearing capacity, and can effectively extend the service life of the floor beam.

[0028] Example 2, please refer to Figure 1-Figure 2 The coating thickness of the polyurethane adhesive 2 should be between 0.01 mm and 0.1 mm to ensure good bonding between the mesh cloth 3 and the PTFE film. Too thick a coating layer may result in uneven bonding, while too thin a coating layer may not provide sufficient bonding strength.

[0029] Add a step of cleaning the surface of the PTFE film; the purpose is to remove dirt and impurities on the surface to ensure that the polyurethane glue can fully contact and bond to the PTFE film, thereby improving the bonding effect. Cleaning can be carried out by wiping, washing, etc.

[0030] The warp and weft density and strength of the mesh fabric 3 should be adjusted according to the load-bearing requirements of the aviation floor beam. By selecting appropriate warp and weft density and strength, it can be ensured that the reinforced mesh structure has sufficient stability and strength to meet the use requirements of the aviation floor beam.

[0031] Add a step of pouring polyurethane two-component gel. After the mesh cloth 3 is attached and the polyurethane glue is initially cured, pour and flatten the prepared polyurethane two-component gel to form a polyurethane gel layer. This gel layer can further improve the strength and corrosion resistance of the reinforced mesh structure and increase the load-bearing capacity of the floor beam.

[0032] Specifically, the mixing ratio and curing conditions of the gel should be adjusted according to the specific use environment and performance requirements. By optimizing the mixing ratio and curing conditions, it can be ensured that the polyurethane gel layer has excellent physical properties and chemical stability, meeting the anti-corrosion and flame retardant requirements of aviation floor beams.

[0033] Add a step of pre-bending the reinforced mesh structure. The purpose of this step is to make the reinforced mesh structure better adapt to the bending requirements of the aviation floor beam during installation and reduce wrinkles and unevenness on the surface of the tape. The pre-bending treatment can be carried out by heating, pressurizing, etc.

[0034] Add a step to inspect the quality of the reinforced mesh structure. The purpose of this step is to ensure that the integrity and performance of the reinforced mesh structure meet the requirements. Quality inspection can include appearance inspection, bonding strength test, flame retardant performance test and corrosion resistance test. Through quality inspection, potential quality problems can be discovered and dealt with in a timely manner to ensure the reliability and safety of the product.

[0035] Quality inspection may include but is not limited to inspecting the appearance of the reinforced mesh structure to ensure that there is no damage or stains; testing the bonding strength to ensure that the bonding between the mesh cloth 3 and the PTFE film is firm; testing the flame retardant performance to ensure that the product meets the relevant flame retardant standards; testing the corrosion resistance to ensure that the product can be used for a long time in harsh environments without corrosion.

[0036] This method is applicable to the floor beams inside the cabin of various types of civil aircraft. By using this method to carry out anti-corrosion treatment of floor beams, the corrosion resistance and structural stability of floor beams can be significantly improved, their service life can be extended, and maintenance costs can be reduced. At the same time, this method can also improve the load-bearing capacity and safety of floor beams, providing passengers with a more comfortable and safe riding environment.

[0037] Furthermore, the surface of the PTFE film is pretreated, such as plasma treatment or chemical treatment, to increase its surface energy; the surface energy of the pretreated PTFE film is increased, and it can better combine with the polyurethane adhesive 2 of the same series to improve the bonding force.

[0038] Furthermore, the polyurethane same series glue 2 is brushed: an automatic glue brushing machine is used to evenly brush a layer of polyurethane same series glue 2 on the pretreated PTFE film; the automatic glue brushing machine can ensure that the glue is evenly brushed and the thickness is consistent, thereby improving production efficiency.

[0039] Further, attaching the glass fiber mesh cloth 3: on the PTFE film coated with the polyurethane same series glue 2, using a mechanical roller to attach the glass fiber mesh cloth 3 flat; the mechanical roller can ensure that the glass fiber mesh cloth 3 and the PTFE film are closely attached to reduce the generation of bubbles and wrinkles. Gelation treatment, pouring polyurethane two-component gel and curing treatment.

[0040] During the implementation of the present invention, the installation method of the aviation floor beam anticorrosion single-sided tape reinforced mesh layer of the present invention has the advantages of simple structure, convenient operation, excellent anticorrosion performance, etc. By brushing the polyurethane same series glue 2 and attaching the glass fiber mesh cloth 3, the bonding force and overall strength between the polyurethane tape and the floor beam can be significantly improved, thereby extending the service life of the floor beam.

[0041] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0046] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for installing an aviation floor beam anti-corrosion single-sided tape reinforced mesh layer, characterized in that: The following steps are involved: A substrate (1) having a PTFE film on one side is provided, a thin layer of polyurethane adhesive (2) is coated on the surface of the PTFE film, and then a glass fiber mesh cloth (3) is attached to the PTFE film coated with the polyurethane adhesive to form a reinforced mesh structure.

2. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1 is characterized in that: The coating thickness of the polyurethane same series glue (2) is 0.01 mm to 0.1 mm, so as to ensure good adhesion between the mesh cloth (3) and the PTFE film.

3. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforced mesh layer according to claim 1 or 2, characterized in that: Before attaching the glass fiber mesh cloth (3), the method also includes a step of cleaning the surface of the PTFE film to remove dirt and impurities on the surface and improve the bonding effect.

4. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1 is characterized in that: The warp and weft density and strength of the glass fiber mesh cloth (3) are adjusted according to the load-bearing requirements of the aviation floor beams to ensure the structural stability and strength of the reinforced mesh layer.

5. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1 is characterized in that: After the glass fiber mesh cloth (3) is attached and the polyurethane adhesive is initially cured, the prepared polyurethane two-component gel is poured and flattened to form a polyurethane gel layer, thereby completing the preparation of the single-sided polyurethane adhesive tape.

6. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 5 is characterized in that: The mixing ratio and curing conditions of the polyurethane two-component gel are adjusted according to the specific use environment and performance requirements to meet the anti-corrosion and flame retardant requirements of aviation floor beams.

7. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1 is characterized in that: The installation process also includes a step of pre-bending the reinforced mesh structure to accommodate the bending requirements of the aviation floor beams during installation and reduce wrinkles on the surface of the tape.

8. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1 is characterized in that: Before the reinforcing mesh layer structure is installed on the aviation floor beam, a quality inspection step is also included to ensure that the integrity and performance of the reinforcing mesh layer structure meet the requirements.

9. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 8, characterized in that: The quality inspection steps include but are not limited to appearance inspection of the reinforced mesh structure, bonding strength test, flame retardant performance test and corrosion resistance test.

10. The installation method of the aviation floor beam anti-corrosion single-sided tape reinforcement mesh layer according to claim 1, characterized in that: The aviation floor beam anti-corrosion single-sided adhesive tape reinforced mesh layer installation method is suitable for various types of civil aircraft cabin interior floor beams to improve the anti-corrosion performance and structural stability of the floor beams.

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