Filling method of honeycomb sealing filling glue

Abstract

The invention provides a filling method of honeycomb sealing filling glue, which comprises the following steps: firstly, carrying out surface treatment on a to-be-bonded rigid foam plastic board in an aircraft cabin door component and a to-be-bonded part of a cabin door metal structure, then bonding, and curing at room temperature for at least 24 hours; secondly, small holes in the exposed surface of the rigid foam plastic board cured for 24 hours and gaps in the periphery of the rigid foam plastic board are coated with honeycomb filling glue for sealing, and the exposed surface of the rigid foam plastic board is coated with thin-layer honeycomb filling glue with the thickness of 0.13-0.25 mm; an epoxy resin adhesive component A and a curing agent component B in the 1629B / G1 honeycomb filling adhesive are matched according to the ratio of A: B being 2: 1, and an X-7 epoxy paint diluent is added for adjustment, so that the finally used honeycomb filling adhesive is obtained. The X-7 epoxy paint diluent is adopted for dilution, the dilution speed is high, the leveling performance is good, the surface is smooth after blade coating, the thickness meets the requirement, and the operation time is greatly saved.

Description

Technical Field

[0001] The invention relates to the technical field of honeycomb sealant filling, in particular to a method for filling a honeycomb sealant which is suitable for the interior of an aircraft cabin door and mainly plays the role of heat insulation, thermal insulation and sound insulation. Background Art

[0002] According to the process flow, during the processing and installation of aircraft door components, the rigid foam plastic board is bonded to the door metal structure or the rigid foam plastic boards are bonded together and cured at room temperature for 24 hours. Then, the small holes on the exposed surface of the rigid foam plastic board and the gaps around it are required to be filled and sealed with honeycomb sealant, and a thin layer of honeycomb filling glue with a thickness of 0.13 mm to 0.25 mm is applied to the exposed surface of the rigid foam plastic board to achieve the effects of heat insulation, thermal insulation and sound insulation.

[0003] The main honeycomb sealant currently used is 1629B / G1 honeycomb filling glue, which is convenient to construct when filling small holes and gaps. However, when applying a thin layer of honeycomb filling glue, due to the thin coating thickness, 1629B / G1 honeycomb filling glue has poor leveling performance and a rough and uneven surface after scraping. The construction is difficult and time-consuming, and has strict requirements on the operator. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a filling method of honeycomb sealing filling glue. For 1629B / G1 honeycomb filling glue, X-7 epoxy paint thinner is used for adjustment, and the honeycomb filling glue prepared according to the ratio is used to fill the small holes on the exposed surface of the rigid foam plastic plate of the aircraft cabin door component and the gaps around the ring, and the exposed surface of the rigid foam plastic plate is coated.

[0005] The technical solution provided by the present invention is:

[0006] A filling method for honeycomb sealing filling glue comprises the following steps:

[0007] Step 1: Surface treatment is performed on the rigid foam plastic plate to be bonded in the aircraft cabin door component and the door metal structure to be bonded, and then bonding is performed and cured at room temperature for at least 24 hours;

[0008] Step 2: Apply honeycomb filling glue to seal the small holes on the exposed surface of the rigid foam plastic board and the gaps around them after curing for 24 hours, and apply a thin layer of honeycomb filling glue with a thickness of 0.13 mm to 0.25 mm on the exposed surface of the rigid foam plastic board;

[0009] The honeycomb filling glue is obtained by the following process:

[0010] The epoxy resin glue component A and the curing agent component B in the 1629B / G1 honeycomb filling glue are mixed in a ratio of A:B=2:1, and X-7 epoxy paint thinner is added thereto for adjustment to obtain the final honeycomb filling glue.

[0011] Furthermore, the X-7 epoxy paint thinner is adjusted in a mass ratio of 15%-25%.

[0012] Furthermore, the process of surface treatment in step 1 is as follows:

[0013] Use 320 to 400 grit sandpaper or nylon to polish the bonding surface of the part to be bonded; then use clean, dry compressed air to blow away dust and polishing residues on the bonding surface and adjacent surfaces; use a clean cloth dipped in X-7 epoxy paint thinner or alcohol to thoroughly clean the bonding surface; dry for 15 to 20 minutes.

[0014] Furthermore, when blowing away dust and grinding residues from the bonding surface and adjacent surfaces, the maximum pressure is 0.2 MPa.

[0015] Furthermore, after drying for 15 to 20 minutes, the grooves on the bonding surface are further blown dry with clean, dry compressed air, or wiped dry with a clean wipe.

[0016] The advantages of the present invention are that, for 1629B / G1 honeycomb filling glue, X-7 epoxy paint thinner is used for dilution, the dilution speed is fast, the leveling performance is good, the surface is smooth after scraping, the thickness meets the requirements, the operation time is greatly saved, and the production cost is saved at the same time, the production efficiency is improved, and the production cycle is guaranteed. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with specific embodiments. The embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0018] In this embodiment, in view of the problems that the coating effect is poor, the surface is rough after scraping, the leveling performance is poor, it is not conducive to scraping, and the construction is difficult when the 1629B / G1 honeycomb filling glue is currently used to fill the small holes and the gaps around the exposed surface of the rigid foam plastic plate of the aircraft cabin door component and to coat the exposed surface of the rigid foam plastic plate, X-7 epoxy paint thinner is used to adjust the 1629B / G1 honeycomb filling glue, and the honeycomb filling glue prepared according to the ratio is used for filling and surface coating, which specifically includes the following steps:

[0019] Step 1: Surface treatment is performed on the rigid foam plastic plate to be bonded in the aircraft cabin door component and the door metal structure to be bonded, and then bonding is performed and cured at room temperature for at least 24 hours;

[0020] The specific surface treatment process is:

[0021] Use 320 to 400 grit sandpaper or nylon to polish the bonding surface of the part to be bonded; then use clean, dry compressed air to blow away dust and grinding residues on the bonding surface and adjacent surfaces (maximum pressure is 0.2MPa); use a clean wipe to dip X-7 epoxy paint thinner or alcohol to thoroughly clean the bonding surface; dry for 15 to 20 minutes. If necessary, further blow dry the grooves on the bonding surface with clean, dry compressed air, or wipe dry the grooves on the bonding surface with a clean wipe.

[0022] Step 2: Apply honeycomb filling glue to seal the small holes on the exposed surface of the rigid foam plastic board and the gaps around them after curing for 24 hours, and apply a thin layer of honeycomb filling glue with a thickness of 0.13 mm to 0.25 mm on the exposed surface of the rigid foam plastic board;

[0023] The honeycomb filling glue is obtained by the following process:

[0024] The epoxy resin glue component A and the curing agent component B in the 1629B / G1 honeycomb filling glue are mixed in a ratio of A:B=2:1, and X-7 epoxy paint thinner is added thereto at a ratio of 15%-25% of the total mass to obtain the final honeycomb filling glue.

[0025] The advantages of the present invention are that, for 1629B / G1 honeycomb filling glue, X-7 epoxy paint thinner is used for dilution, the dilution speed is fast, the leveling performance is good, the surface is flat after scraping, the thickness meets the requirements, the operation time is greatly saved, and the production cost is saved at the same time, the production efficiency is improved, and the production cycle is guaranteed; and the price of X-7 epoxy paint thinner is relatively low, which saves the production cost to a great extent.

[0026] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be included in the protection scope of the present invention.

Claims

1. A filling method for honeycomb sealing filling glue, characterized in that: The following steps are involved: Step 1: Surface treatment is performed on the rigid foam plastic plate to be bonded in the aircraft cabin door component and the door metal structure to be bonded, and then bonding is performed and cured at room temperature for at least 24 hours; Step 2: Apply honeycomb filling glue to seal the small holes on the exposed surface of the rigid foam plastic board and the gaps around them after curing for 24 hours, and apply a thin layer of honeycomb filling glue with a thickness of 0.13 mm to 0.25 mm on the exposed surface of the rigid foam plastic board; The honeycomb filling glue is obtained by the following process: The epoxy resin glue component A and the curing agent component B in the 1629B / G1 honeycomb filling glue are mixed in a ratio of A:B=2:1, and X-7 epoxy paint thinner is added thereto for adjustment to obtain the final honeycomb filling glue.

2. A filling method of honeycomb sealing filling glue according to claim 1, characterized in that: The X-7 epoxy paint thinner is adjusted in a mass ratio of 15%-25%.

3. A filling method of honeycomb sealing filling glue according to claim 1, characterized in that: Step 1 The process of surface treatment is as follows: Use 320 to 400 grit sandpaper or nylon to polish the bonding surface of the bonding part; then use clean, dry compressed air to blow away dust and polishing residues on the bonding surface and adjacent surfaces; Use a clean cloth dipped in X-7 epoxy paint thinner or alcohol to thoroughly clean the bonding surface; dry for 15 to 20 minutes.

4. A filling method of honeycomb sealing filling glue according to claim 3, characterized in that: The process of surface treatment in step 1 is as follows: when blowing away dust and polishing residues on the bonding surface and adjacent surfaces, the maximum pressure is 0.2 MPa.

5. A filling method of honeycomb sealing filling glue according to claim 3, characterized in that: After drying for 15 to 20 minutes, the grooves on the bonding surface are further blown dry with clean, dry compressed air, or wiped dry with a clean wipe.