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CN114347497A - Method for manufacturing special fiber honeycomb - Google Patents

Method for manufacturing special fiber honeycomb Download PDF

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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
Authority
CN
China
Prior art keywords
strip
fiber
honeycomb
prepreg
manufacturing
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.)
Withdrawn
Application number
CN202111575456.7A
Other languages
Chinese (zh)
Inventor
冷杰
李军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Hongzan Honeycomb Material Co ltd
Original Assignee
Suzhou Hongzan Honeycomb Material Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Hongzan Honeycomb Material Co ltd filed Critical Suzhou Hongzan Honeycomb Material Co ltd
Priority to CN202111575456.7A priority Critical patent/CN114347497A/en
Publication of CN114347497A publication Critical patent/CN114347497A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20Shaping 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/60Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/608Honeycomb 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

Method for manufacturing special fiber honeycomb
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.
CN202111575456.7A 2021-12-22 2021-12-22 Method for manufacturing special fiber honeycomb Withdrawn CN114347497A (en)

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
CN114347497A true CN114347497A (en) 2022-04-15

Family

ID=81101389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111575456.7A Withdrawn CN114347497A (en) 2021-12-22 2021-12-22 Method for manufacturing special fiber honeycomb

Country Status (1)

Country Link
CN (1) CN114347497A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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