CN113103621A - Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method - Google Patents
Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method Download PDFInfo
- Publication number
- CN113103621A CN113103621A CN202110526510.2A CN202110526510A CN113103621A CN 113103621 A CN113103621 A CN 113103621A CN 202110526510 A CN202110526510 A CN 202110526510A CN 113103621 A CN113103621 A CN 113103621A
- Authority
- CN
- China
- Prior art keywords
- omega
- fuel tank
- shaped frame
- prepreg
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a co-curing composite material thin-wall fuel tank with an omega-shaped frame and a forming method, relating to the technical field of light weight of an aviation aircraft and constructing a detachable rigid mold; arranging an omega-shaped frame body on a rigid mould, and laying prepreg on the surface of a fuel tank core mould; laying the forming auxiliary materials outside the omega-shaped frame body forming die and leveling with the prepreg on the surface of the fuel tank core die; and encapsulating the product through a flexible mold, and removing the flexible mold after hot-pressing and curing to obtain the fuel tank body with the omega-shaped frame body. The forming method improves the overall structural strength of the connecting position of the hanging frame under the condition of ensuring the fuel volume, the omega-shaped frame body and the integral fuel tank body are formed by adopting similar or same materials, and the stability, the reliability and the overall bearing strength of the local structure of the fuel tank are improved by co-curing and forming.
Description
Technical Field
The invention relates to the technical field of light weight of aviation aircrafts, in particular to a co-cured composite material thin-wall fuel tank with an omega-shaped frame and a molding method.
Background
Fuel tanks are an important component of aircraft for aviation, and as aviation demands for aircraft weight increase, higher demands are placed on aircraft fuel tanks.
Since the existing fuel tank is made of metal material, which results in a large weight, the present application proposes to reduce the weight of the fuel tank by using composite material. At present, research related to composite fuel tanks is carried out at home and abroad, but the tank wall of the existing composite fuel tank adopts a honeycomb sandwich structure, and the fuel tank structure made of thin-wall composite materials is firstly proposed in the application.
In order to reduce the weight of the aircraft, composite fuel tanks have been designed and manufactured, but the composite fuel tanks have very high requirements on the structural strength of the aircraft in the takeoff phase and the flight maneuverability, and the existing composite fuel tanks have insufficient structural stability, especially insufficient load bearing capacity at the connecting position of a hanging rack of the fuel tank. In order to solve the problems, under the condition of ensuring the fuel volume, the omega-shaped frame is introduced, so that the weight and the assembly difficulty of the fuel tank are greatly reduced, and the structural strength, the reliability and the stability of the fuel tank are improved.
Disclosure of Invention
The invention aims to provide a method for forming a co-cured composite material thin-wall fuel tank with an omega-shaped frame body, which solves the technical problem of insufficient bearing capacity at the connecting position of a composite material fuel tank hanging frame.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for forming a co-cured composite material thin-wall fuel tank with an omega-shaped frame body comprises the following steps:
building a detachable rigid mold;
arranging an omega-shaped frame body on a rigid mould, laying a molding material of the omega-shaped frame body in the omega-shaped frame body, placing the omega-shaped frame body into an omega-shaped frame body molding mould and obtaining a fuel tank core mould;
laying a prepreg on the surface of a fuel tank core mold;
laying the forming auxiliary materials outside the omega-shaped frame body forming die and leveling with the prepreg on the surface of the fuel tank core die;
and encapsulating the product through a flexible mold, and removing the flexible mold after hot-pressing and curing to obtain the fuel tank body with the omega-shaped frame body.
Further, the position of the omega-shaped frame body is arranged at the position of a hanger connecting position of the fuel tank body.
Further, the step of laying the molding auxiliary material outside the omega-shaped frame body molding die and leveling the molding auxiliary material with the prepreg on the surface of the fuel tank core die further comprises:
and laying the prepreg on the surface of the forming auxiliary material, and continuously thickening and laying the prepreg at the connecting position of the hanging rack.
Further, the step of laying the prepreg on the surface of the forming auxiliary material and continuously thickening and laying the prepreg at the connecting position of the hanging rack comprises the following steps:
lay the preimpregnation material fabric layer along omega type frame forming die outside and shaping auxiliary material outside, the preimpregnation material fabric layer includes two-layer at least, and the width on the preimpregnation material fabric layer that the back winding was laid is less than the width on the preimpregnation material fabric layer that the winding was laid earlier.
Further, the step of laying up the prepreg on the surface of the fuel tank core mold comprises:
prepreg is laid on the surface of the fuel tank core mold in the order of 0 °, +45 °, -45 ° and forms a first body of the fuel tank.
Further, the matrix material of the prepreg is thermosetting resin or thermoplastic resin or ceramic matrix or metal matrix;
the reinforcement material of the prepreg is glass fiber or carbon fiber or basalt fiber or aramid fiber, and the fiber form of the reinforcement material is chopped fiber or continuous fiber or fiber fabric.
Further, the rigid mould is a metal mould or a plaster mould or a low-temperature alloy mould or a water-soluble resin mould or a wax mould; the flexible mould is silicon rubber or a vacuum air bag or an air pipe.
Furthermore, the molding auxiliary material comprises prepreg, and the prepreg is prepared by cutting the tail material of the prepreg and then adopting the same infiltration method as the prepreg.
Further, the prepreg comprises infiltration resin, and the volume percentage of the infiltration resin is 30-50%.
The invention also provides a co-cured composite material thin-walled fuel tank with an omega-shaped frame, comprising:
the rigid mould module is used for building a detachable rigid mould;
the omega-shaped die module is used for arranging an omega-shaped frame on the rigid die, laying the molding material of the omega-shaped frame in the omega-shaped frame, putting the omega-shaped frame into the omega-shaped frame molding die and obtaining a fuel tank core die;
the first material dipping module is used for laying the prepreg on the surface of the fuel tank core mold;
the second material dipping module is used for laying the forming auxiliary materials outside the omega-shaped frame body forming die and is flush with the prepreg on the surface of the fuel tank core die;
and the forming module is used for encapsulating the product through the flexible mold, removing the flexible mold after hot-pressing and curing, and obtaining the fuel tank body with the omega-shaped frame body.
Compared with the prior art, the forming method of the thin-wall fuel tank with the omega-shaped frame body has the following advantages:
(1) according to the forming method of the thin-wall fuel tank with the omega-shaped frame body, the omega-shaped frame body and the integral fuel tank body are formed by adopting similar or same materials, the stability of a local structure and the reliability of bearing strength are guaranteed through independent pre-lubrication forming, the forming method is simple in process and low in forming cost, and the overall cost of the thin-wall fuel tank is greatly reduced.
(2) The fuel tank core mould is provided with the omega-shaped frame for bearing, so that the connecting strength of the fuel tank body and the hanging rack is enhanced through the omega-shaped frame under the condition of ensuring the fuel volume, and the problems of deformation and the like of the fuel tank body are avoided. The thin-wall fuel tank formed by the method has the advantages of light weight, strong bearing capacity of the hanging rack, stable connection and difficult deformation of the hanging rack, and the fuel tank core mold and the omega-shaped frame are formed simultaneously, so that the connection between the fuel tank core mold and the omega-shaped frame is more stable, and the overall strength of the fuel tank body is better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a flow chart of a method for forming a thin-walled fuel tank with an omega-shaped frame according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for forming a thin-walled fuel tank with an omega-shaped frame according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a thin-walled fuel tank with an omega-shaped frame according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an Ω -shaped frame of a thin-walled fuel tank with an Ω -shaped frame according to a third embodiment of the present invention.
Description of reference numerals:
100-a rigid mold module; a 200-omega type die module; 300-a first infusion module; 400-a second infusion module; 500-forming a mold block; 10-forming an auxiliary material layer; 20-a prepreg fabric layer; 30-omega type frame forming die.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The technical problem to be solved by the embodiment is that in order to reduce the weight of the aircraft, the composite fuel tank is designed and manufactured, so that the weight of the fuel tank is greatly reduced, but the composite fuel tank has very high requirements on the structural strength of the composite fuel tank in the takeoff phase and the flight maneuverability of the aircraft, and the existing composite fuel tank has insufficient structural stability, particularly insufficient bearing capacity at the position of a hanger connection of the fuel tank.
In order to solve the above technical problem, as shown in fig. 1, the present embodiment provides a method for forming a thin-walled co-cured composite fuel tank with an Ω -shaped frame, including the following steps:
s110: building a detachable rigid mold;
s120: arranging an omega-shaped frame body on a rigid mould, laying a molding material of the omega-shaped frame body in the omega-shaped frame body, placing the omega-shaped frame body molding mould 30 and obtaining a core mould of the fuel tank;
s130: laying a prepreg on the surface of a fuel tank core mold;
s140: laying the forming auxiliary materials outside the omega-shaped frame body forming die 30 and leveling with the prepreg on the surface of the core die of the fuel tank;
s150: and encapsulating the product through a flexible mold, and removing the flexible mold after hot-pressing and curing to obtain the fuel tank body with the omega-shaped frame body.
According to the forming method of the thin-wall fuel tank with the omega-shaped frame body, the omega-shaped frame body and the integral fuel tank body are formed by adopting similar or same materials, the stability of a local structure and the reliability of bearing strength are guaranteed through independent pre-lubrication forming, the forming method is simple in process and low in forming cost, and the overall cost of the thin-wall fuel tank is greatly reduced. The fuel tank core mould is provided with the omega-shaped frame for bearing, so that the connecting strength of the fuel tank body and the hanging rack is enhanced through the omega-shaped frame under the condition of ensuring the fuel volume, and the problems of deformation and the like of the fuel tank body are avoided. The thin-wall fuel tank formed by the method has the advantages of light weight, strong bearing capacity of the hanging rack, stable connection and difficult deformation of the hanging rack, and the fuel tank core mold and the omega-shaped frame are formed simultaneously, so that the connection between the fuel tank core mold and the omega-shaped frame is more stable, and the overall strength of the fuel tank body is better.
Example two
The embodiment provides a method for molding a co-cured composite material thin-wall fuel tank with an omega-shaped frame, which comprises the following steps:
s210: building a detachable rigid mould, wherein a model or a detachable model can be built on the outer side of the rigid mould;
s220: arranging an omega-shaped frame body on a rigid mould, arranging the position of the omega-shaped frame body at the position of a hanger connecting position of a fuel tank body, laying a molding material of the omega-shaped frame body in the omega-shaped frame body, placing the omega-shaped frame body into an omega-shaped frame body molding mould 30 and obtaining a fuel tank core mould;
s230: laying the prepreg on the surface of the fuel tank core mold, and continuously thickening and laying the prepreg at the connecting position of the hanging rack; lay prepreg fabric layer 20 along omega type frame forming die 30 outside and shaping auxiliary material outside, prepreg fabric layer 20 includes two-layer at least, and the width of the prepreg fabric layer 20 of laying of back winding is less than the width of the prepreg fabric layer 20 of laying of winding earlier.
Prepreg is laid on the surface of the fuel tank core mold in the order of 0 °, +45 °, -45 ° and forms a first body of the fuel tank.
The matrix material of the prepreg is thermosetting resin or thermoplastic resin or ceramic matrix or metal matrix;
the reinforcement material of the prepreg is glass fiber or carbon fiber or basalt fiber or aramid fiber, and the fiber form of the reinforcement material is chopped fiber or continuous fiber or fiber fabric.
The rigid mould is a metal mould or a plaster mould or a low-temperature alloy mould or a water-soluble resin mould or a wax mould; the flexible mould is silicon rubber or a vacuum air bag or an air pipe.
S240: as shown in fig. 4, a forming auxiliary material is laid outside the omega-shaped frame forming mold 30 and is flush with the prepreg on the surface of the core mold of the fuel tank, and a forming auxiliary material layer 20 is formed, a prepreg fabric layer 20 is arranged outside the forming auxiliary material layer 20 and the omega-shaped frame forming mold 30, the forming auxiliary material comprises prepreg, the prepreg is prepared by the same infiltration method as the prepreg after the prepreg is cut into pieces, the prepreg comprises infiltration resin, and the volume percentage of the infiltration resin is 30-50%.
S250: and encapsulating the product through a flexible mold, and removing the flexible mold after hot-pressing and curing to obtain the fuel tank body with the omega-shaped frame body.
According to the forming method of the thin-wall fuel tank with the omega-shaped frame body, the omega-shaped frame body and the integral fuel tank body are formed by adopting similar or same materials, and independent pre-lubrication forming ensures the stability of a local structure and the reliability of bearing strength. The thin-wall fuel tank formed by the method has the advantages of light weight, strong bearing capacity of the hanging rack, stable connection and difficult deformation of the hanging rack, and the fuel tank core mold and the omega-shaped frame are formed simultaneously, so that the connection between the fuel tank core mold and the omega-shaped frame is more stable, and the overall strength of the fuel tank body is better.
EXAMPLE III
The present invention also provides a thin-walled co-cured composite fuel tank with omega-shaped frame, as shown in fig. 3, comprising:
a rigid mould module 100 for building a detachable rigid mould;
an omega-shaped mold module 200 for setting an omega-shaped frame on the rigid mold, laying the molding material of the omega-shaped frame in the omega-shaped frame, placing the omega-shaped frame in the omega-shaped frame molding mold 30 and obtaining the core mold of the fuel tank;
a first infusion module 300 for laying a prepreg on a fuel tank core mold surface;
the second dipping module 400 is used for laying the forming auxiliary materials outside the omega-shaped frame forming die 30 and is flush with the prepreg on the surface of the core die of the fuel tank;
and the forming module 500 is used for encapsulating the product through a flexible mold, removing the flexible mold after hot-pressing and curing, and obtaining the fuel tank body with the omega-shaped frame body.
The fuel tank core mould is provided with the omega-shaped frame for bearing, so that the connecting strength of the fuel tank body and the hanging rack is enhanced through the omega-shaped frame under the condition of ensuring the fuel volume, and the problems of deformation and the like of the fuel tank body are avoided. The thin-wall fuel tank formed by the method has the advantages of light weight, strong bearing capacity of the hanging rack, stable connection and difficult deformation of the hanging rack, and the fuel tank core mold and the omega-shaped frame are formed simultaneously, so that the connection between the fuel tank core mold and the omega-shaped frame is more stable, and the overall strength of the fuel tank body is better.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. A method for forming a co-cured composite material thin-wall fuel tank with an omega-shaped frame body is characterized in that: the method comprises the following steps:
building a detachable rigid mold;
arranging an omega-shaped frame body on a rigid mould, laying a molding material of the omega-shaped frame body in the omega-shaped frame body, placing the omega-shaped frame body into an omega-shaped frame body molding mould and obtaining a fuel tank core mould;
laying a prepreg on the surface of a fuel tank core mold;
laying the forming auxiliary materials outside the omega-shaped frame body forming die and leveling with the prepreg on the surface of the fuel tank core die;
and encapsulating the product through a flexible mold, and removing the flexible mold after hot-pressing and curing to obtain the fuel tank body with the omega-shaped frame body.
2. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the position of the omega-shaped frame body is arranged at the position of a hanger connecting position of the fuel tank body.
3. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the step of laying the forming auxiliary materials outside the omega-shaped frame body forming die and leveling the forming auxiliary materials with the prepreg on the surface of the fuel tank core die further comprises the following steps:
and laying the prepreg on the surface of the forming auxiliary material, and continuously thickening and laying the prepreg at the connecting position of the hanging rack.
4. The method of claim 3 for forming a thin-walled co-cured composite fuel tank with omega-shaped frame, wherein: the step of laying the prepreg on the surface of the forming auxiliary material and continuously thickening and laying the prepreg at the connecting position of the hanging rack comprises the following steps:
lay the preimpregnation material fabric layer along omega type frame forming die outside and shaping auxiliary material outside, the preimpregnation material fabric layer includes two-layer at least, and the width on the preimpregnation material fabric layer that the back winding was laid is less than the width on the preimpregnation material fabric layer that the winding was laid earlier.
5. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the step of laying up prepreg on the surface of a fuel tank core mold comprises:
prepreg is laid on the surface of the fuel tank core mold in the order of 0 °, +45 °, -45 ° and forms a first body of the fuel tank.
6. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the matrix material of the prepreg is thermosetting resin or thermoplastic resin or ceramic matrix or metal matrix;
the reinforcement material of the prepreg is glass fiber or carbon fiber or basalt fiber or aramid fiber, and the fiber form of the reinforcement material is chopped fiber or continuous fiber or fiber fabric.
7. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the rigid mould is a metal mould or a plaster mould or a low-temperature alloy mould or a water-soluble resin mould or a wax mould; the flexible mould is silicon rubber or a vacuum air bag or an air pipe.
8. The method of forming a thin-walled co-cured composite fuel tank with omega-shaped frame of claim 1, wherein: the molding auxiliary material comprises prepreg, and the prepreg is prepared by cutting the prepreg cutting tailings and adopting the same infiltration method as the prepreg.
9. The method of claim 8 wherein the thin-walled co-cured composite fuel tank with omega-shaped frame is formed by: the prepreg comprises infiltration resin, and the volume percentage of the infiltration resin is 30-50%.
10. A thin-walled co-cured composite fuel tank with omega-shaped frame comprising:
the rigid mould module is used for building a detachable rigid mould;
the omega-shaped die module is used for arranging an omega-shaped frame on the rigid die, laying the molding material of the omega-shaped frame in the omega-shaped frame, putting the omega-shaped frame into the omega-shaped frame molding die and obtaining a fuel tank core die;
the first material dipping module is used for laying the prepreg on the surface of the fuel tank core mold;
the second material dipping module is used for laying the forming auxiliary materials outside the omega-shaped frame body forming die and is flush with the prepreg on the surface of the fuel tank core die;
and the forming module is used for encapsulating the product through the flexible mold, removing the flexible mold after hot-pressing and curing, and obtaining the fuel tank body with the omega-shaped frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526510.2A CN113103621A (en) | 2021-05-14 | 2021-05-14 | Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526510.2A CN113103621A (en) | 2021-05-14 | 2021-05-14 | Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113103621A true CN113103621A (en) | 2021-07-13 |
Family
ID=76722048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110526510.2A Pending CN113103621A (en) | 2021-05-14 | 2021-05-14 | Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113103621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311771A (en) * | 2021-12-22 | 2022-04-12 | 长春长光宇航复合材料有限公司 | 3D (three-dimensional) closed cavity frame structure and forming preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258159A (en) * | 1990-05-02 | 1993-11-02 | The Budd Company | Process for making a fiber reinforced fuel tank |
| CN110182041A (en) * | 2018-02-22 | 2019-08-30 | 本田技研工业株式会社 | Fuel tank |
-
2021
- 2021-05-14 CN CN202110526510.2A patent/CN113103621A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258159A (en) * | 1990-05-02 | 1993-11-02 | The Budd Company | Process for making a fiber reinforced fuel tank |
| CN110182041A (en) * | 2018-02-22 | 2019-08-30 | 本田技研工业株式会社 | Fuel tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311771A (en) * | 2021-12-22 | 2022-04-12 | 长春长光宇航复合材料有限公司 | 3D (three-dimensional) closed cavity frame structure and forming preparation method thereof |
| CN114311771B (en) * | 2021-12-22 | 2023-06-23 | 长春长光宇航复合材料有限公司 | 3D (three-dimensional) closed cavity frame structure and forming preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107215039B (en) | Sandwich composite material and preparation method thereof | |
| CN103963319B (en) | A kind of matrix material adds prepreg/Resin Film Infusion curing molding method altogether of muscle wallboard | |
| CN111470068B (en) | Grille cover body structure for aircraft and manufacturing method thereof | |
| CN105034477A (en) | Honeycomb sandwiched plate used in vehicles and preparation method of same | |
| CN110774622B (en) | Forming method and core mold for large-size large-length-diameter-ratio uniform-section composite material port type beam | |
| CN113103621A (en) | Co-cured composite material thin-wall fuel tank with omega-shaped frame body and molding method | |
| CN113997598B (en) | Forming die and integral forming method for thin-wall reinforcing rib made of composite material | |
| CN111947018B (en) | Winding forming method of composite material gas cylinder with internal grid ribs | |
| CN104999672A (en) | Molding method of double-curvature variable-section variable-thickness through beam | |
| CN113103622B (en) | Forming method and mould device for composite material thin-wall fuel tank with hollow ring frame | |
| CN107160709A (en) | The method and rudder face of a kind of composite liquid shaping ultra light aircraft rudder face | |
| CN103909659A (en) | Method for forming novel resin-based composite material by resin films through permeation | |
| CN105690799A (en) | Preparation method of railway vehicle cowl prepared from carbon fiber reinforced resin matrix composite material | |
| CN110802851A (en) | Method for integrally forming composite material T-shaped reinforced structure product | |
| CN114347511A (en) | Flow guide pipe support arm and preparation method thereof | |
| CN115447792B (en) | Air inlet channel with integral forming lip of aircraft composite material | |
| CN109822933A (en) | One kind being used for the molding magnetic field auxiliary pressurized method of composite structure | |
| JP4730637B2 (en) | RTM molding method | |
| CN113619155A (en) | Integral co-curing forming die and method for unmanned aerial vehicle body and rotor wing rod | |
| CN114889233A (en) | Light rib and forming method thereof | |
| CN219095980U (en) | Foam mandrel and production tooling for cap-shaped reinforced wallboard | |
| CN217144973U (en) | Device for preparing sandwich structure composite material by adopting RTM (resin transfer molding) process | |
| CN103144309B (en) | VIMP (Variable Infusion Molding Process) preparation method of multi-wall composite-structure | |
| CN117508561B (en) | Wing integral type shaping structure and forming die thereof | |
| CN117944291B (en) | Preparation method of thermal characteristic test platform of carbon fiber energy storage structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210713 |
|
| WD01 | Invention patent application deemed withdrawn after publication |