阅读说明：本技术 一种客机密封舱门封严条修复工艺 (Repairing process for sealing strip of sealing cabin door of passenger plane ) 是由 郭大壮 郑高明 韩玉民 符锦彬 于 2021-08-17 设计创作，主要内容包括：一种客机密封舱门封严条修复工艺,包括步骤：S2：在封严条的开裂口两端分别钻止裂孔；S3：在开裂口内第一次涂抹第一粘连剂；S5：在封严条表面标识出一修补区域,修补区域覆盖开裂口及止裂孔；S6：裁剪一片封严补片；S7：在修补区域表面第二次涂抹第一粘连剂；S8：将封严补片贴合在修补区域上；S9：在封严条上标识出一封严区域,封严区域可覆盖修补区域；S10：在封严区域上涂抹第二粘连剂,并静置使该第二粘连剂凝固成薄膜；S11：将封严条放入一模具中,并用夹具夹紧；S12：静置24小时后,移除夹具和模具；S13：用工具修理平整封严区域。用本修复工艺修复后的封严条,符合客机厂家维修手册规定的要求,可有效节约航空公司的运营成本。(A repairing process of a sealing strip of a sealing cabin door of a passenger plane comprises the following steps: s2: respectively drilling crack-stopping holes at two ends of the crack of the sealing strip; s3: coating a first adhesive in the cracking opening for the first time; s5: marking a repairing area on the surface of the sealing strip, wherein the repairing area covers the split and the crack-stopping hole; s6: cutting a piece of sealing patch; s7: coating a first adhesive on the surface of the repair area for the second time; s8: attaching the sealing patch to the repair area; s9: marking a sealing area on the sealing strip, wherein the sealing area can cover the repairing area; s10: coating a second adhesive on the sealed area, and standing to solidify the second adhesive into a film; s11: placing the sealing strip into a mold and clamping the sealing strip by using a clamp; s12: after standing for 24 hours, removing the clamp and the mold; s13: the sealed area is repaired with a tool. The sealing strip repaired by the repairing process meets the requirements specified by a maintenance manual of a passenger plane manufacturer, and can effectively save the operating cost of an airline company.)

1. A repairing process for a sealing strip of a sealed cabin door of a passenger plane is characterized by comprising the following steps:

s1: the sealing strip is detached from the sealing cabin door of the passenger plane and is placed in a room at normal temperature;

s2: respectively drilling crack arrest holes at two ends of a crack opening of the sealing strip, and communicating the two ends of the crack opening with the crack arrest holes;

s3: coating a first adhesive in the cracking opening for the first time;

s4: keeping the split joint, and allowing the first adhesive to cure for 5 to 10 minutes;

s5: marking a repairing area on the surface of the sealing strip according to the sizes of the cracking hole and the crack-stopping hole, wherein the area of the repairing area covers the cracking hole and the crack-stopping hole;

s6: cutting a sealing patch, wherein the area of the sealing patch is matched with the repairing area;

s7: coating a first adhesive on the surface of the repaired area for the second time, and ensuring that the first adhesive is penetrated into the crack arrest hole;

s8: attaching the sealing patch to the repairing area, and ensuring the surface of the attached sealing patch to be smooth;

s9: marking a sealing area on the sealing strip and at the periphery of the repairing area, wherein the area of the sealing area is larger than that of the repairing area, so that the sealing area can completely cover the repairing area;

s10: coating a second adhesive on the sealed area for the first time, and standing for a period of time to enable the second adhesive to be solidified into a film;

s11: placing the sealing strip coated with the second adhesive into a mold, and clamping the mold by using an external clamp, wherein the mold is provided with an inner cavity matched with the cross section of the sealing strip, so that the sealing strip can be clamped in the inner cavity of the mold;

s12: standing for 24 hours at room temperature, sequentially removing the clamp and the die, and tearing off the film overflowing from the sealing strip to the outside of the sealing area;

s13: repairing the sealed area by using a repairing tool to ensure that the sealed surface is smooth;

s14: and measuring various parameters of the sealing strip, comparing the parameters with the data of the sealing strip specified on the aviation manual, and if the parameters meet the requirements, installing the repaired sealing strip back to the sealing cabin door of the passenger plane.

2. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in step S3, the first adhesive is a silicone sealant.

3. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in step S10, the second adhesive is a polyester film rubber adhesive.

4. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in step S5, the repair area is a square area.

5. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in the step S6, the sealing patch is made of rubber.

6. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in the step S11, only a part of the sealing strip in the sealing area is placed in the cavity of the mold, instead of placing the whole sealing strip in the cavity of the mold.

7. The process of repairing a sealing strip of a sealed door of a passenger aircraft according to claim 1, wherein: in step S13, the repair tool is a file and a cutter.

Technical Field

The invention relates to the technical field of maintenance of a sealed cabin door of a passenger plane, in particular to a repairing process of a sealing strip of the sealed cabin door of the passenger plane.

Background

The sealing strip is a sealing element which is attached to and installed on the sealed cabin door of the airplane, and the sealed cabin door is often actuated to extrude the sealing strip to a certain extent, so that the sealing strip is deformed to a certain extent after being used for a long time, the surface of the sealing strip is damaged, and even a crack is formed. In the regular inspection work of each maintenance base of the applicant, the phenomenon that the sealing strip of the sealing cabin door of the passenger plane cracks is discovered occasionally. In order to ensure the shipping safety of the passenger aircraft, the damaged sealing strip needs to be replaced or maintained. Generally, if the sealing strip is damaged greatly, the sealing strip is directly replaced without repair; and only small damage of the sealing strip occurs, and then repair measures can be taken. The existing repairing process of the sealing strip only comprises the steps of coating glue on a damaged area of the sealing strip and pasting a repairing piece, and the process is simple and difficult to ensure that the repaired appearance and function meet the technical standards specified in a passenger plane maintenance manual.

Disclosure of Invention

The invention aims to provide a repairing process of a sealing strip of a sealing cabin door of a passenger plane, which overcomes the defects and shortcomings in the background technology.

In order to achieve the purpose, the scheme is realized by the following technical scheme:

a repairing process of a sealing strip of a sealing cabin door of a passenger plane comprises the following steps:

s1: the sealing strip is detached from the sealing cabin door of the passenger plane and is placed in a room at normal temperature;

s2: respectively drilling crack arrest holes at two ends of a crack opening of the sealing strip, and communicating the two ends of the crack opening with the crack arrest holes;

s3: coating a first adhesive in the cracking opening for the first time;

s4: keeping the split joint, and allowing the first adhesive to cure for 5 to 10 minutes;

s5: marking a repairing area on the surface of the sealing strip according to the sizes of the cracking hole and the crack-stopping hole, wherein the area of the repairing area covers the cracking hole and the crack-stopping hole;

s6: cutting a sealing patch, wherein the area of the sealing patch is matched with the repairing area;

s7: coating a first adhesive on the surface of the repaired area for the second time, and ensuring that the first adhesive is penetrated into the crack arrest hole;

s8: attaching the sealing patch to the repairing area, and ensuring the surface of the attached sealing patch to be smooth;

s9: marking a sealing area on the sealing strip and at the periphery of the repairing area, wherein the area of the sealing area is larger than that of the repairing area, so that the sealing area can completely cover the repairing area;

s10: coating a second adhesive on the sealed area for the first time, and standing for a period of time to enable the second adhesive to be solidified into a film;

s11: placing the sealing strip coated with the second adhesive into a mold, and clamping the mold by using an external clamp, wherein the mold is provided with an inner cavity matched with the cross section of the sealing strip, so that the sealing strip can be clamped in the inner cavity of the mold;

s12: standing for 24 hours at room temperature, sequentially removing the clamp and the die, and tearing off the film overflowing from the sealing strip to the outside of the sealing area;

s13: repairing the sealed area by using a repairing tool to ensure that the sealed surface is smooth;

s14: and measuring various parameters of the sealing strip, comparing the parameters with the data of the sealing strip specified on the aviation manual, and if the parameters meet the requirements, installing the repaired sealing strip back to the sealing cabin door of the passenger plane.

Preferably, in step S3, the first adhesive is a silicone sealant, and the part number described in the service manual is: ELASTOSIL E43 or RTV-102.

Preferably, in step S10, the second adhesive is a polyester film rubber adhesive, and the number of the second adhesive is as follows: MIL-I-631.

Preferably, in step S5, the repair area is a square area.

Preferably, in step S6, the sealing patch is made of rubber.

Preferably, in step S11, only a part of the sealing strip in the sealing area is placed in the cavity of the mold, instead of placing the whole sealing strip in the cavity of the mold.

Preferably, in step S13, the repair tool is a file and a cutter.

Compared with the prior art, the invention has the beneficial effects that:

1) the sealing strip repaired by the repairing process meets the requirements specified by a maintenance manual of a passenger plane manufacturer, can effectively save the operation cost of an airline company, and achieves the purposes of increasing income and saving expenses.

2) The sealing area on the sealing strip is pressed through the die matched with the sealing strip, the sealing area is repaired through a repair tool, the sealing surface is ensured to be flat, and the repaired sealing strip is stable and meets the requirements specified by an aesthetic maintenance manual.

3) Each step is performed exactly according to the service manual standards, wherein steps S3, S7 apply silicone sealant with service manual specification number "ELASTOSIL E43 or RTV-102", and step S10 apply mylar rubber adhesive with service manual specification number "MIL-I-631", so that the repaired sealing strip meets the standards to the maximum possible extent, and after repair, step S14 is performed: and various parameters of the sealing strip are measured, and the parameters are compared with the data of the sealing strip specified on the aviation manual, and the repaired sealing strip can be installed back to the sealing cabin door of the passenger plane only when the requirements are met, so that the whole process steps are rigorous, and the repairing quality is ensured.

4) The repairing environment of the sealing strip is severe, the repairing work is carried out indoors and at room temperature, and the influence of environmental factors on the binder is effectively avoided.

5) And (4) respectively drilling crack arrest holes at two ends of the crack orifice of the sealing strip, overcoming the problem that the crack orifice continues to expand in the future through the stress of the arc-shaped structure of the crack arrest holes, and ensuring high stability after repair.

6) The area of the repair area is larger than the areas of the split and the crack-stopping hole, so that the repair area completely covers the split and the crack-stopping hole; the area of the sealing area is larger than that of the repairing area, so that the sealing area can completely cover the repairing area, the glue spreading area is gradually increased, and the stability of the repaired sealing strip is further ensured.

In order that the invention may be more clearly understood, preferred embodiments of the invention will now be described with reference to the accompanying drawings.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.

Referring to fig. 1, a process for repairing a sealing strip of a sealed cabin door of a passenger plane includes the steps of:

s1: the sealing strip is detached from the sealing cabin door of the passenger plane and is placed in a room at normal temperature;

s2: respectively drilling crack arrest holes at two ends of a crack opening of the sealing strip, and communicating the two ends of the crack opening with the crack arrest holes;

s3: coating a first adhesive in the cracking opening for the first time;

s4: keeping the split joint, and allowing the first adhesive to cure for 5 to 10 minutes;

s5: marking a repairing area on the surface of the sealing strip according to the sizes of the cracking hole and the crack-stopping hole, wherein the area of the repairing area covers the cracking hole and the crack-stopping hole;

s6: cutting a sealing patch, wherein the area of the sealing patch is matched with the repairing area;

s7: coating a first adhesive on the surface of the repaired area for the second time, and ensuring that the first adhesive is penetrated into the crack arrest hole;

s8: attaching the sealing patch to the repairing area, and ensuring the surface of the attached sealing patch to be smooth;

s9: marking a sealing area on the sealing strip and at the periphery of the repairing area, wherein the area of the sealing area is larger than that of the repairing area, so that the sealing area can completely cover the repairing area;

s10: coating a second adhesive on the sealed area for the first time, and standing for a period of time to enable the second adhesive to be solidified into a film;

s11: placing the sealing strip coated with the second adhesive into a mold, and clamping the mold by using an external clamp, wherein the mold is provided with an inner cavity matched with the cross section of the sealing strip, so that the sealing strip can be clamped in the inner cavity of the mold;

s12: standing for 24 hours at room temperature, sequentially removing the clamp and the die, and tearing off the film overflowing from the sealing strip to the outside of the sealing area;

s13: repairing the sealed area by using a repairing tool to ensure that the sealed surface is smooth;

s14: and measuring various parameters of the sealing strip, comparing the parameters with the data of the sealing strip specified on the aviation manual, and if the parameters meet the requirements, installing the repaired sealing strip back to the sealing cabin door of the passenger plane.

Preferably, in this embodiment, in step S3, the first adhesive is a silicone sealant, and the part numbers described in the service manual are: ELASTOSIL E43 or RTV-102.

Preferably, in this embodiment, in step S10, the second adhesive is a polyester film rubber adhesive, and the number described in the service manual is: MIL-I-631.

Preferably, in this embodiment, in step S5, the repair area is a square area.

Preferably, in this embodiment, in step S6, the sealing patch is made of rubber.

Preferably, in this embodiment, in step S11, only a part of the sealing strip in the sealing region is placed in the cavity of the mold, instead of placing the whole sealing strip in the cavity of the mold.

Preferably, in this embodiment, in step S13, the repair tools are files and cutters.

Compared with the prior art, the invention has the beneficial effects that: the sealing area on the sealing strip is pressed through the die matched with the sealing strip, the sealing area is repaired through a repair tool, the sealing surface is ensured to be flat, and the repaired sealing strip is stable and meets the requirements specified by an aesthetic maintenance manual. Each step is performed exactly according to the service manual standards, wherein steps S3, S7 apply silicone sealant with service manual specification number "ELASTOSIL E43 or RTV-102", and step S10 applies mylar rubber adhesive with service manual specification number "MIL-I-631", so that the repaired sealing strip meets the standards to the maximum possible extent, and after repair, step S14 is performed: and various parameters of the sealing strip are measured, and the parameters are compared with the data of the sealing strip specified on the aviation manual, and the repaired sealing strip can be installed back to the sealing cabin door of the passenger plane only when the requirements are met, so that the whole process steps are rigorous, and the repairing quality is ensured. The repairing environment of the sealing strip is severe, the repairing work is carried out indoors and at room temperature, and the influence of environmental factors on the binder is effectively avoided. And (4) respectively drilling crack arrest holes at two ends of the crack orifice of the sealing strip, overcoming the problem that the crack orifice continues to expand in the future through the stress of the arc-shaped structure of the crack arrest holes, and ensuring high stability after repair. The area of the repair area is larger than the areas of the split and the crack-stopping hole, so that the repair area completely covers the split and the crack-stopping hole; the area of the sealing area is larger than that of the repairing area, so that the sealing area can completely cover the repairing area, the glue spreading area is gradually increased, and the stability of the repaired sealing strip is further ensured.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.