CN114347497A - Method for manufacturing special fiber honeycomb - Google Patents
Method for manufacturing special fiber honeycomb Download PDFInfo
- Publication number
- CN114347497A CN114347497A CN202111575456.7A CN202111575456A CN114347497A CN 114347497 A CN114347497 A CN 114347497A CN 202111575456 A CN202111575456 A CN 202111575456A CN 114347497 A CN114347497 A CN 114347497A
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- CN
- China
- Prior art keywords
- strip
- fiber
- honeycomb
- prepreg
- manufacturing
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- 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.)
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Classifications
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- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/608—Honeycomb structures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a method for manufacturing a special fiber honeycomb, which comprises the following steps: gluing fiber cloth or other fiber fabrics to prepare a prepreg; stacking prepreg layers, laying a strip hole isolating film between every two layers of prepregs, and stacking the strip holes on the strip hole isolating film in a staggered manner; heating the stacked prepregs for secondary curing; the strip hole isolating membrane is extracted; sawing the cured prepreg into strip-shaped core strips with required sizes; the strip-shaped core strip is stretched into a honeycomb. The area covered by the strip-hole isolating film is larger than the area of the prepreg. The invention has the beneficial effects that: the technical scheme greatly simplifies the manufacturing process, reduces the equipment limitation, is favorable for reducing the cost of the special fiber honeycomb and promotes the application of the special fiber honeycomb in various fields.
Description
Technical Field
The invention relates to the technical field of fiber honeycombs, in particular to a method for manufacturing a special fiber honeycomb, which is beneficial to reducing the cost of the special fiber honeycomb.
Background
The special fiber honeycomb has wide application, for example, the glass fiber honeycomb has good wave permeability and is widely used for radar and antenna housings, the carbon fiber honeycomb has light weight and high strength and is widely used in the fields of aerospace, transportation vehicles and the like, and the aramid fiber honeycomb has excellent performance and is the first choice of aerospace sandwich materials. The existing special fiber honeycomb manufacturing process is relatively complex, generally, fiber fabrics are glued and pressed, then stretched, dipped in glue, heated and cured for the second time, and finally sheets of required specifications are cut. The cost is high due to the complex manufacturing process, and the application of the special fiber honeycomb material is greatly limited. Most procedures for manufacturing the honeycomb by the prior art are finished after the honeycomb is stretched, so the equipment size is large, the investment of fixed assets is high, the environment is easily polluted in the manufacturing process, and the investment of environmental protection is also high, so the method is extremely unfavorable for improving the productivity of honeycomb manufacturing enterprises to reduce the cost.
Disclosure of Invention
The invention mainly solves the technical problem of providing a method for manufacturing a special fiber honeycomb, which is beneficial to reducing the cost of the special fiber honeycomb, and solves one or more of the prior technical problems.
In order to solve the technical problems, the invention adopts a technical scheme that: the manufacturing method of the special fiber honeycomb is characterized in that: the method comprises the following steps:
step 1: gluing fiber cloth or other fiber fabrics to prepare a prepreg;
step 2: stacking prepreg layers, laying a strip hole isolating film between every two layers of prepregs, and stacking the strip holes on the strip hole isolating film in a staggered manner;
and step 3: heating the stacked prepregs for secondary curing;
and 4, step 4: the strip hole isolating membrane is extracted;
and 5: sawing the cured prepreg into strip-shaped core strips with required sizes;
step 6: the strip-shaped core strip is stretched into a honeycomb.
In some embodiments, the area of coverage of the tape hole separator film is greater than the area of the prepreg.
In some embodiments, in step 1, the fiber fabric is one or more of glass fiber, carbon fiber, aramid fiber; the glue is one or more of epoxy resin, polyurethane resin and imide resin.
In some embodiments, the temperature of the secondary curing in step 3 is 150 ℃ and the pressure is 20MPa, the temperature is maintained for 3 hours, and then the secondary curing is naturally cooled to 80 ℃ and taken out, and finally the secondary curing is naturally cooled to room temperature.
In some embodiments, in step 4, one side of the strip-hole isolation film is cut off, and then the other side is mechanically clamped and drawn out to complete the drawing-out.
The invention has the beneficial effects that: the technical scheme greatly simplifies the manufacturing process, reduces the equipment limitation, is favorable for reducing the cost of the special fiber honeycomb and promotes the application of the special fiber honeycomb in various fields.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of a method for manufacturing a specialty fiber honeycomb according to the present invention after completion of step 2.
FIG. 2 is a schematic diagram of the method for manufacturing a specialty fiber honeycomb of the present invention after completion of step 3.
FIG. 3 is a schematic diagram of the method for manufacturing a specialty fiber honeycomb of the present invention after completion of step 4.
FIG. 4 is a schematic diagram of a method for manufacturing a specialty fiber honeycomb according to the present invention after completion of step 5.
FIG. 5 is a schematic diagram of a method for manufacturing a specialty fiber honeycomb according to the present invention after completion of step 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
As shown in fig. 1 to 5, the embodiment of the present invention includes:
a method for manufacturing a special fiber honeycomb comprises the following steps:
step 1: gluing fiber cloth or other fiber fabrics to prepare a prepreg;
step 2: stacking prepreg layers, laying a strip hole isolating film between every two layers of prepregs, and stacking the strip holes on the strip hole isolating film in a staggered manner;
and step 3: heating the stacked prepregs for secondary curing;
and 4, step 4: the strip hole isolating membrane is extracted;
and 5: sawing the cured prepreg into strip-shaped core strips with required sizes;
step 6: the strip-shaped core strip is stretched into a honeycomb.
In some embodiments, the area of coverage of the tape hole separator film is greater than the area of the prepreg.
In some embodiments, in step 1, the fiber fabric is one or more of glass fiber, carbon fiber, aramid fiber; the glue is one or more of epoxy resin, polyurethane resin and imide resin.
In some embodiments, the temperature of the secondary curing in step 3 is 150 ℃ and the pressure is 20MPa, the temperature is maintained for 3 hours, and then the secondary curing is naturally cooled to 80 ℃ and taken out, and finally the secondary curing is naturally cooled to room temperature.
In some embodiments, in step 4, one side of the strip-hole isolation film is cut off, and then the other side is mechanically clamped and drawn out to complete the drawing-out.
The invention has the advantages that: the technical scheme greatly simplifies the manufacturing process, reduces the equipment limitation, is favorable for reducing the cost of the special fiber honeycomb and promotes the application of the special fiber honeycomb in various fields.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A method for manufacturing a special fiber honeycomb is characterized by comprising the following steps: the method comprises the following steps:
step 1: gluing fiber cloth or other fiber fabrics to prepare a prepreg;
step 2: stacking prepreg layers, laying a strip hole isolating film between every two layers of prepregs, and stacking the strip holes on the strip hole isolating film in a staggered manner;
and step 3: heating the stacked prepregs for secondary curing;
and 4, step 4: the strip hole isolating membrane is extracted;
and 5: sawing the cured prepreg into strip-shaped core strips with required sizes;
step 6: the strip-shaped core strip is stretched into a honeycomb.
2. The method for manufacturing a specialty fiber honeycomb of claim 1, wherein: the area covered by the isolating film with the strip holes is larger than that of the prepreg.
3. The method for manufacturing a specialty fiber honeycomb of claim 1, wherein: in the step 1, the fiber fabric is one or more of glass fiber, carbon fiber and aramid fiber; the glue is one or more of epoxy resin, polyurethane resin and imide resin.
4. The method for manufacturing a specialty fiber honeycomb of claim 1, wherein: and (3) keeping the temperature of the secondary curing at 150 ℃ and the pressure at 20MPa for 3 hours, naturally cooling to 80 ℃, taking out, and naturally cooling to room temperature.
5. The method for manufacturing a specialty fiber honeycomb of claim 1, wherein: in step 4, one side of the strip hole isolating membrane is cut off, and the other side is clamped by a machine and drawn out, so that drawing-out is completed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111575456.7A CN114347497A (en) | 2021-12-22 | 2021-12-22 | Method for manufacturing special fiber honeycomb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111575456.7A CN114347497A (en) | 2021-12-22 | 2021-12-22 | Method for manufacturing special fiber honeycomb |
Publications (1)
Publication Number | Publication Date |
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CN114347497A true CN114347497A (en) | 2022-04-15 |
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Family Applications (1)
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CN202111575456.7A Withdrawn CN114347497A (en) | 2021-12-22 | 2021-12-22 | Method for manufacturing special fiber honeycomb |
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CN (1) | CN114347497A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114851617A (en) * | 2022-05-07 | 2022-08-05 | 哈尔滨工程大学 | Shaping method of composite material honeycomb prepared based on stretching process |
-
2021
- 2021-12-22 CN CN202111575456.7A patent/CN114347497A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114851617A (en) * | 2022-05-07 | 2022-08-05 | 哈尔滨工程大学 | Shaping method of composite material honeycomb prepared based on stretching process |
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Application publication date: 20220415 |