CN114248466A - Preparation method of composite material bearing plate and composite material bearing plate - Google Patents
Preparation method of composite material bearing plate and composite material bearing plate Download PDFInfo
- Publication number
- CN114248466A CN114248466A CN202111595137.2A CN202111595137A CN114248466A CN 114248466 A CN114248466 A CN 114248466A CN 202111595137 A CN202111595137 A CN 202111595137A CN 114248466 A CN114248466 A CN 114248466A
- Authority
- CN
- China
- Prior art keywords
- fiber cloth
- composite material
- glass fiber
- layer
- bearing plate
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000011162 core material Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 16
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 6
- 238000005187 foaming Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims description 63
- 239000010410 layer Substances 0.000 claims description 53
- 239000003365 glass fiber Substances 0.000 claims description 50
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 36
- 239000004917 carbon fiber Substances 0.000 claims description 36
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 34
- 238000001723 curing Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 238000010396 two-hybrid screening Methods 0.000 claims description 3
- 239000006261 foam material Substances 0.000 abstract description 9
- 239000000047 product Substances 0.000 description 6
- 238000011068 loading method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010104 thermoplastic forming Methods 0.000 description 1
- 238000009755 vacuum infusion Methods 0.000 description 1
- 238000003466 welding Methods 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
- 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
-
- 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
- B29C70/545—Perforating, cutting or machining during or after moulding
Abstract
The invention discloses a preparation method of a composite material bearing plate and the composite material bearing plate, which comprises the following steps: paving the composite material base material of the first skin, and curing and molding the first skin by adopting a vacuum bag pressing process; uniformly arranging a plurality of through holes penetrating through the core material on the core material made of the high polymer plastic material, paving the core material on the first skin, foaming PVC foam or PU foam in situ in each through hole of the core material, and finishing and leveling after the foam is hardened; and paving the composite material base material of the second skin on the core material, curing and molding the second skin by adopting a vacuum bag pressing process, and demolding to obtain the bearing plate product. The invention is applied to the field of composite material forming, integrates the polymer plastic and the foam material as core materials, and combines the polymer plastic and the foam material in an in-situ foaming mode, thereby avoiding the reduction of strength and rigidity caused by connecting gaps, and effectively improving the bearing capacity of the composite material bearing plate while controlling the weight of the composite material bearing plate.
Description
Technical Field
The invention relates to the technical field of composite material forming, in particular to a preparation method of a composite material bearing plate and the composite material bearing plate.
Background
For large-size components made of metal materials, a die-casting welding forming mode can be directly adopted for processing, for high-polymer components with higher hardness, a thermoplastic forming method can be adopted, and the technical process is simpler. For large-size composite material members, vacuum infusion or vacuum bag pressing processes are mostly adopted. At present, most of the conventional composite material bearing plates adopt a sandwich type structure with a skin covering foam core material, and although the foam core material is directly adopted as the sandwich layer, the weight of a final product can be effectively reduced, but the problems of insufficient strength and rigidity are also brought.
Disclosure of Invention
In view of the above-mentioned deficiencies in the prior art, the invention provides a preparation method of a composite material bearing plate and the composite material bearing plate, which can effectively improve the bearing capacity of the composite material bearing plate while controlling the weight of the composite material bearing plate.
In order to achieve the above object, the present invention provides a method for preparing a composite material bearing plate, comprising the following steps:
step 1, paving a composite material base material of a first skin on a forming surface of a forming die, curing and forming the first skin by adopting a vacuum bag pressing process, and then removing a vacuum bag pressing auxiliary material;
step 2, uniformly forming a plurality of through holes penetrating through the core material on the core material made of the high polymer plastic material, paving the core material on the first skin, foaming PVC foam or PU foam in situ in each through hole of the core material, and finishing the foam to be flush after the foam is hardened;
and 3, paving the composite material base material of the second skin on the core material, curing and molding the second skin by adopting a vacuum bag pressing process, removing the vacuum bag pressing auxiliary material, and demolding to obtain the bearing plate product.
In another embodiment, the composite substrate of the first skin and the composite substrate of the second skin are both carbon fiber/glass fiber hybrid composites.
In another embodiment, the carbon fiber/glass fiber hybrid composite material is formed by a plurality of carbon fiber cloth and glass fiber cloth hybrid laminated core materials, wherein the hybrid mode is interlayer hybrid or sandwich hybrid, and the surfaces of the two hybrid modes are both glass fiber cloth.
In another embodiment, the carbon fiber cloth and the glass fiber cloth in the carbon fiber/glass fiber hybrid composite material are mixed in a ratio of 1:1 to 3: 1.
In another embodiment, the specific process of step 1 is:
after the surface treatment and detection of the molding surface are finished, coating a release agent on the molding surface;
coating a layer of resin on a release agent after the release agent is cured, then paving a first layer of glass fiber cloth prepreg, and then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and molding to obtain a first skin, and removing the vacuum bag to press the auxiliary material.
In another embodiment, the specific process of step 3 is:
coating a layer of resin on a core material, then paving a first layer of glass fiber cloth prepreg, then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and forming, then removing the vacuum bag to press the auxiliary material, and demoulding to obtain the bearing plate product.
In order to achieve the purpose, the invention also provides a composite material bearing plate which is manufactured by adopting the preparation method.
According to the preparation method of the composite material bearing plate and the composite material bearing plate, the core material is prepared from the high polymer plastic material, the PVC foam or the PU foam is foamed in situ in the through hole after the through hole is formed in the core material, and the high polymer plastic is stronger than the foam material in strength and rigidity, and when the weight of the high polymer plastic is higher than that of the foam material, the high polymer plastic and the foam material are combined to serve as the core material, and the high polymer plastic and the foam material are combined in an in-situ foaming mode, so that the reduction of the strength and the rigidity caused by a connecting gap is avoided, and the bearing capacity of the composite material bearing plate can be effectively improved while the weight of the composite material bearing plate is controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a flow chart of a method for manufacturing a composite material carrier plate according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 present invention, and not all of the embodiments. 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 shows a method for manufacturing a composite material bearing plate disclosed in this embodiment, which specifically includes the following steps:
step 1, paving a composite material base material of a first skin on a forming surface of a forming die, curing and forming the first skin by adopting a vacuum bag pressing process, and then removing a vacuum bag pressing auxiliary material;
step 2, uniformly forming a plurality of through holes penetrating through the core material on the core material made of the high polymer plastic material, paving the core material on the first skin, foaming PVC foam or PU foam in situ in each through hole of the core material, and finishing the foam to be flush after the foam is hardened;
and 3, paving the composite material base material of the second skin on the core material, curing and molding the second skin by adopting a vacuum bag pressing process, removing the vacuum bag pressing auxiliary material, and demolding to obtain the bearing plate product.
For composite materials, polymer plastics and foam materials, the strength and rigidity are ordered from high to low in sequence as follows: composite materials, polymer plastics, foam materials; the sequence from light to heavy in weight is: foam material, polymer plastic and composite material. For bearing plates in certain application scenes, such as an air deflector in an aircraft engine and an air deflector in an air cushion ship, the weight, the strength and the rigidity of products are required correspondingly, but the weight, the strength and the rigidity of the products have the same point that the weight is required to be as low as possible, and the strength and the rigidity are as high as possible. Based on this, adopt combined material to guarantee the outside intensity and the rigidity of loading board as the exterior material of loading board in this embodiment, and adopt polymer plastics to make the core, foam PVC foam or PU foam in situ after trompil on the core simultaneously for the weight is also as for too high under the prerequisite that has certain intensity, rigidity in the sandwich layer of loading board, and then can effectively promote its bearing capacity when controlling combined material loading board weight.
In the steps 1 and 3, the composite material substrate of the first skin and the composite material substrate of the second skin are both carbon fiber/glass fiber hybrid composite materials, so that the surface strength and rigidity of the bearing plate can be further increased. In the specific implementation process, the mixing ratio of the carbon fiber cloth to the glass fiber cloth in the carbon fiber/glass fiber hybrid composite material is 1: 1-3: 1. The carbon fiber/glass fiber hybrid composite material is formed by a plurality of carbon fiber cloth and glass fiber cloth hybrid laminated core materials, wherein the hybrid mode is interlayer hybrid or sandwich hybrid, and the surfaces of the two hybrid modes are both glass fiber cloth. Wherein, the interlayer mixed layer represents the uniform staggered distribution of the carbon fiber and the glass fiber in the skin; the sandwich mixing means that a plurality of layers of carbon fibers are positioned in the middle of the skin, and a plurality of layers of glass fibers cover two surfaces of the carbon fibers.
In the specific implementation process, the specific process of step 1 is as follows:
after the surface treatment and detection of the molding surface are finished, coating a release agent on the molding surface;
coating a layer of resin on a release agent after the release agent is cured, then paving a first layer of glass fiber cloth prepreg, and then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and molding to obtain a first skin, and removing the vacuum bag to press the auxiliary material.
In the specific implementation process, the specific process of step 3 is as follows:
coating a layer of resin on a core material, then paving a first layer of glass fiber cloth prepreg, then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and forming, then removing the vacuum bag to press the auxiliary material, and demoulding to obtain the bearing plate product.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A preparation method of a composite material bearing plate is characterized by comprising the following steps:
step 1, paving a composite material base material of a first skin on a forming surface of a forming die, curing and forming the first skin by adopting a vacuum bag pressing process, and then removing a vacuum bag pressing auxiliary material;
step 2, uniformly forming a plurality of through holes penetrating through the core material on the core material made of the high polymer plastic material, paving the core material on the first skin, foaming PVC foam or PU foam in situ in each through hole of the core material, and finishing the foam to be flush after the foam is hardened;
and 3, paving the composite material base material of the second skin on the core material, curing and molding the second skin by adopting a vacuum bag pressing process, removing the vacuum bag pressing auxiliary material, and demolding to obtain the bearing plate product.
2. The method for manufacturing the composite material carrying floor according to claim 1, wherein the composite material substrate of the first skin and the composite material substrate of the second skin are both a carbon fiber/glass fiber hybrid composite material.
3. The method for manufacturing the composite material bearing plate according to claim 2, wherein the carbon fiber/glass fiber hybrid composite material is formed by stacking a plurality of carbon fiber cloth and glass fiber cloth in a hybrid manner on a core material, wherein the hybrid manner is interlayer hybrid or sandwich hybrid, and the surfaces of the two hybrid manners are both glass fiber cloth.
4. The preparation method of the composite material bearing plate according to claim 3, wherein the mixing ratio of the carbon fiber cloth to the glass fiber cloth in the carbon fiber/glass fiber hybrid composite material is 1: 1-3: 1.
5. The method for preparing the composite bearing plate according to claim 3 or 4, wherein the specific process of the step 1 is as follows:
after the surface treatment and detection of the molding surface are finished, coating a release agent on the molding surface;
coating a layer of resin on a release agent after the release agent is cured, then paving a first layer of glass fiber cloth prepreg, and then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and molding to obtain a first skin, and removing the vacuum bag to press the auxiliary material.
6. The method for preparing the composite bearing plate according to claim 3 or 4, wherein the specific process of the step 3 is as follows:
coating a layer of resin on a core material, then paving a first layer of glass fiber cloth prepreg, then paving glass fiber cloth prepreg or carbon fiber cloth prepreg layer by layer according to the mixing requirement until the last layer of glass fiber cloth prepreg is paved, wherein before each layer of glass fiber cloth prepreg or carbon fiber cloth prepreg is paved, a layer of resin is coated on the surface of the last layer of glass fiber cloth prepreg or carbon fiber cloth prepreg;
and vacuumizing by using a vacuum bag, sealing the mould covered with the prepreg, heating, curing and forming, then removing the vacuum bag to press the auxiliary material, and demoulding to obtain the bearing plate product.
7. A composite carrier sheet, characterized in that it is produced by the production method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595137.2A CN114248466A (en) | 2021-12-23 | 2021-12-23 | Preparation method of composite material bearing plate and composite material bearing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595137.2A CN114248466A (en) | 2021-12-23 | 2021-12-23 | Preparation method of composite material bearing plate and composite material bearing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114248466A true CN114248466A (en) | 2022-03-29 |
Family
ID=80797348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111595137.2A Pending CN114248466A (en) | 2021-12-23 | 2021-12-23 | Preparation method of composite material bearing plate and composite material bearing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114248466A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248161A (en) * | 2017-12-01 | 2018-07-06 | 中国航空工业集团公司基础技术研究院 | A kind of method that foam-filled honeycomb prepares liquid condition shaping composite material sandwich |
| CN108248124A (en) * | 2018-01-30 | 2018-07-06 | 深圳市郎搏万先进材料有限公司 | A kind of pp cellular sandwich compound plates and preparation method thereof |
| CN110978560A (en) * | 2019-12-12 | 2020-04-10 | 航天特种材料及工艺技术研究所 | Foam sandwich structure wallboard and forming method thereof |
| CN112141226A (en) * | 2020-08-31 | 2020-12-29 | 江苏新扬新材料股份有限公司 | Method for assembling composite material lightweight electronic shelter |
-
2021
- 2021-12-23 CN CN202111595137.2A patent/CN114248466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248161A (en) * | 2017-12-01 | 2018-07-06 | 中国航空工业集团公司基础技术研究院 | A kind of method that foam-filled honeycomb prepares liquid condition shaping composite material sandwich |
| CN108248124A (en) * | 2018-01-30 | 2018-07-06 | 深圳市郎搏万先进材料有限公司 | A kind of pp cellular sandwich compound plates and preparation method thereof |
| CN110978560A (en) * | 2019-12-12 | 2020-04-10 | 航天特种材料及工艺技术研究所 | Foam sandwich structure wallboard and forming method thereof |
| CN112141226A (en) * | 2020-08-31 | 2020-12-29 | 江苏新扬新材料股份有限公司 | Method for assembling composite material lightweight electronic shelter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6843525B2 (en) | Reinforced composite vehicle load floor of the cellular core sandwich-type | |
| EP0266224B1 (en) | Process for the manufacture of laminated elements | |
| US20130127092A1 (en) | Moulded multilayer plastics component with continuously reinforced fibre plies and process for producing this component | |
| US20110315310A1 (en) | Single press mold process for forming a finished light weight structural component | |
| CN109823020B (en) | Glass fiber reinforced polyurethane composite cover plate and manufacturing process method thereof | |
| JP2008246981A (en) | Manufacturing method of fiber-reinforced composite material | |
| JP5151668B2 (en) | Manufacturing method of FRP | |
| US11633939B2 (en) | Method for producing a planar composite component and composite component produced thereby | |
| US20130079434A1 (en) | Process for manufacturing a part made of a composite having a hollow core | |
| EP2946903B1 (en) | Manufacturing method for fibre-reinforced resin substrate or resin molded article | |
| KR20200132876A (en) | Manufacturing method of molded article | |
| CN114248466A (en) | Preparation method of composite material bearing plate and composite material bearing plate | |
| CN116323161A (en) | Method for manufacturing sandwich panel and sandwich panel | |
| JPH04185428A (en) | Interior material for vehicle and manufacture thereof | |
| CN111572061B (en) | Manufacturing method of fully-adaptive support tool for soft mold auxiliary support | |
| JP2002248620A (en) | Base material for molding fiber-reinforced plastic and molding method of fiber-reinforced plastic | |
| CN111791544A (en) | Light bearing plate for vehicle and production method thereof | |
| US11529770B2 (en) | Moulding method | |
| GB2560703A (en) | Moulding method | |
| TW202204137A (en) | Fiber-reinforced resin molded body and manufacturing method thereof, fiber-reinforced resin molding prepreg, fiber-reinforced molded body and fiber-reinforced molded body manufacturing method, and resin sheet, fiber-reinforced sandwich composite, and fiber-reinforced molded body manufacturing method | |
| US20210370624A1 (en) | Method for producing a thermoplastically deformable, fiber-reinforced flat semi-finished product | |
| JPH03114742A (en) | Interior finish material for vehicle and manufacture thereof | |
| JPS61102347A (en) | Base material for car trim | |
| JPH05185542A (en) | Structure with multilayer honeycomb core and manufacture thereof | |
| JPH07256801A (en) | Phenol resin laminate and production of phenol resin molding using the same |
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 |