CN114953526A - Portable supercharging device for repairing composite material structure and using method thereof - Google Patents
Portable supercharging device for repairing composite material structure and using method thereof Download PDFInfo
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- CN114953526A CN114953526A CN202210540579.5A CN202210540579A CN114953526A CN 114953526 A CN114953526 A CN 114953526A CN 202210540579 A CN202210540579 A CN 202210540579A CN 114953526 A CN114953526 A CN 114953526A
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- air bag
- vacuum
- vacuum chuck
- supercharging device
- portable
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- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 29
- 230000008439 repair process Effects 0.000 claims abstract description 27
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 230000000153 supplemental effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/24—Apparatus or accessories not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
A portable supercharging device for repairing a composite material structure and a using method thereof relate to a supercharging device and a using method thereof. The lower end opening of the top balloon of the pressurizing air bag and the inner ring of the bottom connecting ring are connected into a whole through a neck type structure, the neck type structure is inwardly contracted by 100-150 mm in the circumferential direction and is subjected to rigidity reinforcement, the pressurizing air bag is of a sphere structure with an omega-shaped cross section in a full air state, the vacuum chuck is of an annular structure with an n-shaped cross section in a natural state, the outer ring of the connecting ring is bent downwards and connected with the top of the vacuum chuck into a whole, the inner surface of the vacuum chuck is a friction surface, the pressurizing air bag is provided with an inflation valve, and the vacuum chuck is provided with a vacuum valve. And (4) after the patching material is paved and pasted, carrying out vacuum packaging, covering the bottom of the portable supercharging device on the portable supercharging device, vacuumizing the vacuum sucker, inflating the pressurizing air bag to reach stable set pressure, and heating and curing. Through the ingenious cooperation of pressurization gasbag and vacuum chuck for combined material structure repair provides supplemental pressure and stable temperature field, simple and convenient.
Description
Technical Field
The invention relates to a supercharging device and a using method thereof, in particular to a portable supercharging device for repairing a composite material structure and a using method thereof, and belongs to the technical field of composite material structure maintenance.
Background
The composite material is widely applied to the high and new technical fields of aviation, aerospace, ships, rail transit and the like due to the excellent performance of the composite material, particularly the composite material is widely applied to the design of modern airplanes, and the structural weight of the airplanes is effectively reduced. The performance of composite structures is sensitive to damage, which is mainly caused by the structure during use, and the main types are impact damage (race track sand, bird strike, tool drop, collision, etc.), surface damage (scratch, delamination, etc.), and damage caused by environmental factors (surface oxidation, delamination honeycomb sandwich degumming, sandwich corrosion, surface bubbling, etc.). Composite structures may exhibit a combination of even several forms of damage, and composite repair problems are one of the major problems that prevent further development of composite applications.
With the great improvement of the use proportion of the composite material, the composite material is inevitably damaged in the use and operation processes of the airplane, and the structural strength and the flight safety are influenced. Thus, the importance of composite structure repair issues is highlighted. At present, the maintenance technology of composite material structures based on conditions such as autoclave, oven and the like at home and abroad reaches higher technical level, but in order to ensure the attendance rate and the use efficiency of airplanes, the field repair is often needed. The outfield repair mainly refers to the repair of the damage suffered by the composite material in the using process by carrying the repair material and repair equipment to an airport. The condition of the outfield security facilities is limited, outfield repair is usually carried out on the spot without fixed facilities under the condition of insufficient power, power supply and water source, is quick, temporary and local repair, and is required to be quickly restored to the state of executing the next task. Under the condition of an external field, a special repairing device is generally carried to provide continuous temperature and vacuum pressure guarantee for a damaged area, and a portable hot repair instrument, an electric blanket, a repair kit and the like are commonly used. However, the conventional composite material repairing equipment can only provide approximate vacuum pressure (about 0.8 MPa), the temperature is greatly influenced by the external field environment, the stable state meeting the requirements is difficult to achieve, the defects of insufficient repairing pressure, low curing rate, porosity, debonding and the like are often caused, the repairing quality and the repairing effect are influenced, and the bottleneck to be broken through in the conventional composite material quick repairing process is needed urgently.
In view of the above problems, the present invention provides an auxiliary device and a method for using the same, which can provide a higher curing pressure for repairing a composite material under an external field condition and help to ensure a stable temperature field.
Disclosure of Invention
In order to solve the defects of the background technology, the invention provides a portable supercharging device for repairing a composite material structure and a use method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable supercharging device for repairing a composite material structure comprises a pressurizing air bag and a vacuum chuck which are integrally formed, wherein the pressurizing air bag is made of a flexible material, the top of the pressurizing air bag is a ball bag with an opening at the lower end, the bottom of the pressurizing air bag is a connecting ring, the opening of the ball bag and an inner ring of the connecting ring are connected into a whole through a neck type structure, the neck type structure is internally contracted by 100-150 mm in the circumferential direction, the pressurizing air bag is of a ball structure with an omega-shaped cross section in a full-air state, the neck type structure is subjected to rigidity reinforcement to enable the neck type structure to maintain the original shape and size in the pressurizing state, the vacuum chuck is made of a flexible material which is the same as or compatible with the pressurizing air bag, the cross section of the vacuum chuck is of an annular structure with an n shape in a natural state, an outer ring of the connecting ring is bent downwards and is connected with the middle position of the top of the vacuum chuck into a whole, the inner surface of the vacuum chuck is a friction surface, and at least one inflating valve is arranged on the pressurizing air bag, at least one vacuum valve is arranged on the vacuum chuck.
A method of using a portable plenum for composite structure repairs, comprising the steps of:
the method comprises the following steps: keeping the damaged area of the composite material structure and the surface of the repairing material clean, paving the repairing material, then carrying out vacuum packaging, and then covering the bottom of the portable supercharging device on the repairing material;
step two: the vacuum suction cup is vacuumized through a vacuum valve, so that the vacuum suction cup is firmly adsorbed and fixed on the surface of the composite material structure and covers the damaged area to generate vacuum adsorption force f a ；
Step three: the pressurizing air bag is inflated to be fully expanded through the inflation valve, and the inner surface of the pressurizing air bag bears the inflation pressure f b Partial inflation pressure f b Is absorbed by vacuum a Balancing, part of the inflation pressure f within the inflated bladder due to the stiffening effect of the neck structure b The film stress is converted into the annularly balanced film stress, the lateral tension is generated on the vacuum chuck through the film stress, and the friction force F between the two sides of the vacuum chuck and the surface of the composite material structure 1 And F 2 The mutual offset further improves the adsorption force of the vacuum chuck;
step four: and continuously inflating the pressurizing airbag to gradually reach stable set pressure, then closing the inflation valve, and heating and curing the composite material structure damage area or the repairing material.
Compared with the prior art, the invention has the beneficial effects that: the invention can implement pressurization under simple conditions of an external field, is used for providing supplementary pressure except vacuum pressure for repairing a composite material structure, skillfully matches a pressurizing air bag with an omega-shaped sphere on the cross section with a bottom vacuum chuck, utilizes the surface tension of the pressurizing air bag and the friction force of the vacuum chuck and the surface of the composite material structure to offset the inflating pressure, can greatly improve the pressurizing capacity, is mainly suitable for curved surface workpieces with smaller planes or curvatures, can stick a sealing adhesive tape around the vacuum chuck to ensure sealing to adapt to the contour of the workpiece if the workpiece is a large curved surface workpiece, ensures that the curing or gluing process of a repairing material has enough pressure, furthest reduces the quality of a gluing interface, pores in a laminated board and the layering phenomenon on the basis of the original vacuum pressure, and is beneficial to solving the problems of insufficient pressure and poor internal pressure of the external field maintenance of the composite material structure, guarantee solidification and the quality of gluing, can provide even stable temperature field simultaneously, reduce environmental impact, can fold used repeatedly, be convenient for combine together with the repair package of standing by and accomodate and carry, extension repair package function improves combined material structure repair efficiency and maintenance quality, and high efficiency, low cost, the fast solidification of repairing to the aircraft outfield have important meaning.
Drawings
FIG. 1 is a schematic illustration of the portable supercharging device of the present invention prior to inflation;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a cross-sectional view of the portable pressurizing unit of the present invention in a vacuum chuck operating state;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic view of a portable supercharging assembly of the present invention in use;
FIG. 6 is an enlarged partial view of FIG. 5;
FIG. 7 is an isometric view of the portable pressurizing apparatus of the present invention;
FIG. 8 is a schematic view of the present invention with an alternative shape for the inflating bladder.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1-2 and 7, a portable pressure device for repairing a composite material structure comprises an integrally formed pressure-filling air bag 1 and a vacuum chuck 2, wherein the structural size of the pressure-filling air bag 1 is determined by the size of a part to be pressurized, preferably more than 20-30 mm larger than the part to be pressurized, a smooth revolving body is adopted, the pressure-filling air bag 1 is made of a flexible material, such as a rubber material, especially a fiber reinforcement rubber, or other flexible materials capable of bearing corresponding air pressure, the top part is a balloon 1-1 with an opening at the lower end, the bottom part is a connecting ring 1-2, the opening of the balloon 1-1 and the inner ring of the connecting ring 1-2 are connected into a whole by adopting a neck type structure 1-3, the neck type structure 1-3 is inwards folded by 100-150 mm, the pressure-filling air bag 1 is a sphere structure with an omega-shaped section in a full air state, and the neck type structure 1-3 position is reinforced with rigidity to make it maintain original shape and size under the pressurized state, for example, continuous fiber or metal ring is used to reinforce the rigidity of the neck type structure 1-3 position to ensure enough rigidity, and the pressurized air bag 1 is kept in horizontal or oblique state under the full-air state, but not vertical to the surface of the composite material structure, the vacuum chuck 2 is made of flexible material which is the same as or compatible with the pressurized air bag 1, for example, rubber or silica gel material, and is in a ring structure with n-shaped section under the natural state, the outer ring of the connecting ring 1-2 is bent downwards and is connected with the middle position of the top of the vacuum chuck 2 into a whole, the inner surface of the vacuum chuck 2 is a friction surface to ensure that the vacuum chuck has enough friction coefficient when being adsorbed and fixed with the surface of the composite material structure, at least one inflation valve 3 is arranged on the pressurized air bag 1, the vacuum chuck 2 is provided with at least one vacuum valve 4, the inflation valve 3 can be connected with a barometer, the vacuum valve 4 can be connected with a vacuum meter, in addition, the pressurizing air bag 1 and the vacuum chuck 2 can be further provided with a reinforced fiber layer, and the compression strength can be improved while the vacuum chuck 2 can be folded and reused.
It should be noted that, other schemes for reasonably changing the above structure, for example, replacing the pressurizing airbag 1 with another shape, as shown in fig. 8, the pressurizing airbag 1 is replaced by a sphere with an omega-shaped cross section in the above structure, and a sphere with a long cylindrical cross section, which can play the same role as the above structure, and also belong to the protection scope of the present invention.
As shown in fig. 3 to 6, a method for using a portable supercharging device for repairing a composite material structure comprises the following steps:
the method comprises the following steps: keeping the damaged area of the composite material structure 5 and the surface of the repairing material 6 clean, paving the repairing material 6, then carrying out vacuum packaging, and then covering the bottom of the portable supercharging device on the repairing material 6;
step two: the vacuum sucker 2 is vacuumized through the vacuum valve 4, so that the vacuum sucker 2 is firmly adsorbed and fixed on the surface of the composite material structure 5 and covers the damaged areaTo generate a vacuum suction force f a ；
Step three: the inflating valve 3 inflates the inflating air bag 1 to be fully expanded, and the inner surface of the inflating air bag 1 bears the inflating pressure f b Partial inflation pressure f b Is absorbed by vacuum a Balancing, part of the inflation pressure f within the inflated airbag 1 due to the stiffening effect of the neck structure 1-3 b The film stress is converted into the annularly balanced film stress, the lateral pulling force is generated on the vacuum chuck 2 through the film stress, and the friction force F between the two sides of the vacuum chuck 2 and the surface of the composite material structure 5 is generated 1 And F 2 The mutual offset further improves the adsorption force of the vacuum chuck 2;
step four: the pressurizing air bag 1 is continuously inflated to gradually reach a stable set pressure (the set pressure is generally 1.0-2.5 bar), then the inflation valve 3 is closed, and the heating and curing are carried out on the damaged area of the composite material structure 5 or the repairing material 6.
Examples
The outfield inspection finds that the wall plate skin of a certain part has one impact damage, the preliminary inspection finds that the impact damage causes internal cracks and delamination, the damage area is about phi 38.5mm, the flight safety is influenced, and the condition of fly-back is met after the repair;
the external field condition is limited, equipment facilities such as an autoclave, an oven and the like are lacked, but the repair bag, a hot repair instrument and an electric blanket are provided, the internal pressure of the traditional vacuum bag in the repair bag is about 0.85bar when the traditional vacuum bag is used alone, and the repair effect is limited due to insufficient pressure;
after the damaged area is cleaned, the damaged area and the electric blanket are subjected to vacuum packaging together, the pressurization device is adopted for assisting, the area to be repaired which is subjected to vacuum packaging is covered, and the vacuum sucker 2 is vacuumized to be firmly fixed;
stopping inflating after the inflating air bag 1 is inflated to reach the set pressure, and keeping the pressure;
switching on a power supply of the electric blanket, heating according to the curing curve requirement and keeping for a sufficient time;
through the inflation of the pressurizing device, the pressure of the vacuum bag and the pressurizing device is combined on the basis of the original vacuum pressure, the pressure of about 2.0-3 bar can be generated, the phenomena of bonding interface, pore space in a laminated board, layering and debonding are reduced to the maximum extent, and the pressurizing air bag 1 is released to the safe pressure after the curing is finished and then is detached;
nondestructive testing the repaired area, and confirming the internal quality of the repaired area;
and (5) polishing and spraying paint on the repaired area, and finishing the repair.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a portable supercharging device is used in repair of combined material structure which characterized in that: the inflatable air bag comprises an integrally formed inflatable air bag (1) and a vacuum chuck (2), wherein the inflatable air bag (1) is made of a flexible material, the top of the inflatable air bag is a ball bag (1-1) with an opening at the lower end, the bottom of the inflatable air bag is a connecting ring (1-2), the opening of the ball bag (1-1) and an inner ring of the connecting ring (1-2) are connected into a whole by adopting a neck type structure (1-3), the neck type structure (1-3) is inwards folded by 100-150 mm in the circumferential direction, the inflatable air bag (1) is of a spherical structure with an omega-shaped section in a full air state, the neck type structure (1-3) is subjected to rigidity reinforcement to maintain the original shape and size in the inflated state, the vacuum chuck (2) is made of a flexible material which is the same as or compatible with the inflatable air bag (1), and is of an n-shaped annular structure with the section in a natural state, the outer ring of the connecting ring (1-2) is bent downwards and is connected with the middle position of the top of the vacuum chuck (2) into a whole, the inner surface of the vacuum chuck (2) is a friction surface, at least one inflation valve (3) is arranged on the pressurizing air bag (1), and at least one vacuum valve (4) is arranged on the vacuum chuck (2).
2. A portable pressure intensifier for composite structure repairs as set forth in claim 1, wherein: the inflation valve (3) is connected with a barometer, and the vacuum valve (4) is connected with a vacuum meter.
3. A portable supercharging device for composite structure repairs according to claim 1 or 2, wherein: the neck-type structure (1-3) of the pressurizing air bag (1) is subjected to rigidity reinforcement through continuous fibers or metal rings.
4. A portable plenum for composite structure repairs as claimed in claim 1 wherein: the pressurizing air bag (1) is made of rubber materials, and the vacuum sucker (2) is made of rubber or silica gel materials.
5. A portable supercharging device for composite structure repairs according to claim 4, wherein: the pressurizing air bag (1) and the vacuum sucker (2) are provided with reinforced fiber layers.
6. The use method of the portable supercharging device for repairing the composite material structure is characterized in that: the portable supercharging device of claim 1, a method of use of which comprises the steps of:
the method comprises the following steps: keeping the damaged area of the composite material structure (5) and the surface of the repairing material (6) clean, paving the repairing material (6), then carrying out vacuum packaging, and then covering the bottom of the portable supercharging device on the repairing material;
step two: the vacuum sucker (2) is vacuumized through the vacuum valve (4), so that the vacuum sucker (2) is firmly adsorbed and fixed on the surface of the composite material structure (5) and covers the damaged area to generate vacuum adsorption force f a ；
Step three: the inflating valve (3) is used for inflating the inflating air bag (1) to be fully expanded, and the inner surface of the inflating air bag (1) bears the inflating pressure f b Partial inflation pressure f b Is absorbed by vacuum a Balancing, part of the inflation pressure f within the inflated airbag (1) due to the stiffening effect of the neck structure (1-3) b The film stress is converted into the annularly balanced film stress, the lateral tension is generated on the vacuum chuck (2) through the film stress, and the friction force F between the two sides of the vacuum chuck (2) and the surface of the composite material structure (5) 1 And F 2 The mutual counteraction is realized, and the adsorption force of the vacuum chuck (2) is further improved;
step four: continuously inflating the pressurizing air bag (1) to gradually reach stable set pressure, then closing the inflation valve (3), and heating and curing the damaged area of the composite material structure (5) or the repairing material (6).
7. Use according to claim 6, characterized in that: and setting the pressure in the fourth step to be 1.0-2.5 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210540579.5A CN114953526A (en) | 2022-05-17 | 2022-05-17 | Portable supercharging device for repairing composite material structure and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210540579.5A CN114953526A (en) | 2022-05-17 | 2022-05-17 | Portable supercharging device for repairing composite material structure and using method thereof |
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| CN114953526A true CN114953526A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202210540579.5A Pending CN114953526A (en) | 2022-05-17 | 2022-05-17 | Portable supercharging device for repairing composite material structure and using method thereof |
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| CN (1) | CN114953526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428136A (en) * | 2023-04-24 | 2023-07-14 | 宁夏大学 | On-site shape-following paving mechanism for composite material repair and repair system |
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|---|---|---|---|---|
| US4554036A (en) * | 1984-05-07 | 1985-11-19 | Newsom Cosby M | Portable vacuum device and method of using same |
| FR2705914A1 (en) * | 1993-06-02 | 1994-12-09 | Aerospatiale | Device for applying pressure, optionally with heat, onto a surface of any shape, in particular for repairing damaged structures |
| US6435242B1 (en) * | 1998-03-23 | 2002-08-20 | Northrop Grumman Corp | Repair pressure applicator |
| US20110232829A1 (en) * | 2010-03-29 | 2011-09-29 | Alenia Aeronautica S.P.A. | Method and a device for repairing parts of composite material of an aircraft |
| US20120152438A1 (en) * | 2010-12-06 | 2012-06-21 | Hermann Benthien | Method of Repairing an Aircraft Structure Component |
| CN111844818A (en) * | 2020-07-10 | 2020-10-30 | 南京维吉拉软件科技有限公司 | Method for repairing damaged resin-based fiber reinforced composite material and pressurization repairing device |
-
2022
- 2022-05-17 CN CN202210540579.5A patent/CN114953526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554036A (en) * | 1984-05-07 | 1985-11-19 | Newsom Cosby M | Portable vacuum device and method of using same |
| FR2705914A1 (en) * | 1993-06-02 | 1994-12-09 | Aerospatiale | Device for applying pressure, optionally with heat, onto a surface of any shape, in particular for repairing damaged structures |
| US6435242B1 (en) * | 1998-03-23 | 2002-08-20 | Northrop Grumman Corp | Repair pressure applicator |
| US20110232829A1 (en) * | 2010-03-29 | 2011-09-29 | Alenia Aeronautica S.P.A. | Method and a device for repairing parts of composite material of an aircraft |
| US20120152438A1 (en) * | 2010-12-06 | 2012-06-21 | Hermann Benthien | Method of Repairing an Aircraft Structure Component |
| CN111844818A (en) * | 2020-07-10 | 2020-10-30 | 南京维吉拉软件科技有限公司 | Method for repairing damaged resin-based fiber reinforced composite material and pressurization repairing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428136A (en) * | 2023-04-24 | 2023-07-14 | 宁夏大学 | On-site shape-following paving mechanism for composite material repair and repair system |
| CN116428136B (en) * | 2023-04-24 | 2024-08-06 | 宁夏大学 | On-site shape-following paving mechanism for composite material repair and repair system |
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