CN111376502A - Processing method of carbon fiber composite material cylinder - Google Patents

Processing method of carbon fiber composite material cylinder Download PDF

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Publication number
CN111376502A
CN111376502A CN201811639561.0A CN201811639561A CN111376502A CN 111376502 A CN111376502 A CN 111376502A CN 201811639561 A CN201811639561 A CN 201811639561A CN 111376502 A CN111376502 A CN 111376502A
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China
Prior art keywords
carbon fiber
fiber composite
composite material
mold
winding
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Application number
CN201811639561.0A
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Chinese (zh)
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CN111376502B (en
Inventor
王雨
孙松强
任德林
纪俊成
周超
高超
刘圆圆
王旭
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Chengdu Lianke Aviation Technology Co ltd
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Chengdu Lianke Aviation Technology Co ltd
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    • 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
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681Component parts, details or accessories; Auxiliary operations
    • B29C70/682Preformed parts characterised by their structure, e.g. form
    • 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
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681Component parts, details or accessories; Auxiliary operations
    • B29C70/683Pretreatment of the preformed part, e.g. insert

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention relates to the field of winding, forming and processing of composite material cylinders, in particular to a processing method of a carbon fiber composite material cylinder, which comprises the following steps: s1, winding, curing and processing an inner skin; s2, winding, curing and processing the inner ring ribs; s3, winding, curing and processing the outer skin and the outer ring ribs; step S2 includes: s201, winding at least two inner annular rib raw materials to the outer side of the solidified inner skin, and installing a foam core between the inner annular ribs; s202, applying temperature to the inner mold, the formed inner skin and the unformed inner ring rib to enable the inner ring rib to be cured and formed. Through the technology provided by the invention, the foam core can be used as a mold for the inner annular rib in the winding, curing and molding process, so that the shape of the inner annular rib can be controlled in the molding process, the bevel edge generated after the inner annular rib is molded in the prior art can be avoided, the one-time trimming and polishing step can be further reduced, and the processing step is simplified.

Description

Processing method of carbon fiber composite material cylinder
Technical Field
The invention relates to a processing method of a composite material cylinder, in particular to a processing method of a carbon fiber composite material cylinder.
Background
The composite material cylinder made of the carbon fiber material has the advantages of high strength, light weight, corrosion resistance and the like. The composite material cylinder made of carbon fiber material usually comprises an inner skin, an inner ring rib, a foam core, an outer skin, an outer ring rib and other structures. Many interior ring muscle distribute in between interior covering and outer covering, and the foam core is used for filling the clearance between each interior covering, and the outer loop muscle sets up in the surface of outer covering.
When winding this kind of combined material section of thick bamboo, make carbon fiber raw and other materials pass through a groove that is equipped with the resin earlier, make the material fully gummed back, twine carbon fiber raw and other materials on the mould, exert certain tension for the carbon fiber when twining, this tension makes between each layer carbon fiber become closely knit. The sequence of winding is typically: firstly winding the inner skin, then winding the inner ring rib outside the inner skin, and curing. At this moment, if the inner ring rib is not molded during curing, after the curing is completed, inclined edges are generated on two sides of the inner ring rib, and the existence of the inclined edges can generate adverse effects on the subsequent foam core installation process. In order to install the foam core between the inner ring ribs, the bevel edges of the inner ring ribs need to be trimmed and polished after the inner ring ribs are cured. The trimming and grinding process is performed by machining, which makes the machining process complicated.
Disclosure of Invention
The invention aims to: aiming at the problem of complex processing process in the prior art, a processing method of a carbon fiber composite material cylinder is provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a processing method of a carbon fiber composite material cylinder comprises the following steps:
s1, winding, curing and processing an inner skin;
s2, winding, curing and processing the inner ring ribs;
s3, winding, curing and processing the outer skin and the outer ring ribs;
step S2 includes:
s201, winding at least two inner annular rib raw materials to the outer side of the solidified inner skin, and installing a foam core between the inner annular ribs;
s202, applying temperature to the inner mold, the formed inner skin and the unformed inner ring rib to enable the inner ring rib to be cured and formed.
According to the technology provided by the invention, the inner annular rib and the foam core are firstly installed on the outer side of the cured inner skin together, and then the temperature is applied to the inner annular rib and the foam core together, so that the curing of the inner annular rib is realized. At this moment, the foam core can act as the mould of inner ring muscle in the curing forming process for inner ring muscle is at the forming process, and its shape can be controlled, thereby can avoid the hypotenuse that produces among the prior art after the inner ring muscle shaping, and then can reduce once and repair the step of polishing of cutting, has simplified the processing step.
As a preferable aspect of the present invention, step S2 further includes:
s203, trimming the surfaces of the formed inner annular ribs and the foam core.
As a preferable aspect of the present invention, step S1 includes:
s101, covering an ablation-resistant layer on an inner mold, and applying temperature to the inner mold and the ablation-resistant layer to solidify and mold the ablation-resistant layer;
s102, winding the raw material of the inner skin to the outer side of the ablation-resistant layer, and applying temperature to the inner mold and the unformed inner skin; and curing and molding the inner skin.
As a preferable aspect of the present invention, step S3 includes:
s301, winding the outer skin raw material to the outer sides of the cured inner ring ribs and the foam core;
s302, winding the outer annular rib raw material on the outer sides of the solidified foam core and the inner annular rib;
and S303, applying temperature to the inner mold and the carbon fiber composite material cylinder to solidify and mold the outer ring rib.
In a preferred embodiment of the present invention, the inner mold is rotated while the curing process is performed.
As a preferable scheme of the invention, the method further comprises the following steps:
s4, separating the inner mold from the carbon fiber composite material cylinder;
step S4 is performed after step S3 is completed.
As the preferred scheme of the invention, the internal mold comprises a mold body, and the mold body is of a cylindrical structure;
the outer surface of the die body is a molding surface, and the die body is formed by splicing a first molding piece and a second molding piece;
the first molding part is provided with a first end and a second end, and the cross-sectional area of the first molding part is gradually reduced along the direction from the first end to the second end;
step S4 includes:
s401, moving the first forming piece along the direction that the second end points to the first end.
S402, separating the second forming piece from the carbon fiber composite material cylinder.
In a preferred embodiment of the present invention, in step S402, the second molded article is moved in a direction opposite to the direction in which the first molded article is removed from the mold.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the foam core can act as the mould of inner ring muscle in the curing forming process for inner ring muscle is in the forming process, and its shape can be controlled, thereby can avoid the hypotenuse that produces among the prior art after the inner ring muscle shaping, and then can reduce once to repair and cut the step of polishing, has retrencied the processing step.
2. Before the inner skin is formed, the ablation-resistant layer is sprayed on the inner mold, and after the carbon fiber composite material cylinder is formed, the ablation-resistant layer covers the inner layer of the carbon fiber composite material cylinder, so that the requirement of a high-temperature working environment can be better met by the inner layer of the carbon fiber composite material cylinder.
3. The first forming piece and the second forming piece of the inner die provided by the invention are structurally designed, so that the carbon fiber composite material cylinder can be smoothly demoulded, and the inner surface of the formed carbon fiber composite material cylinder can be prevented from generating large friction force.
Drawings
Fig. 1 is a schematic flow chart of a processing method of a carbon fiber composite material cylinder provided by the invention.
Fig. 2 is a schematic structural diagram of the inner mold provided by the present invention.
Icon: 11-a mould body; 111-a first shaped part; 112-a second profile; 1113-first end; 1114-second end.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Please refer to fig. 1 and fig. 2. The invention provides a processing method of a carbon fiber composite material cylinder, which comprises the following steps:
s1, curing and processing an inner skin;
s2, curing and processing the inner ring rib;
s3, curing and processing the outer skin and the outer ring rib;
step S2 includes:
s201, winding at least two inner annular rib raw materials to the outer side of the solidified inner skin, and installing a foam core between the inner annular ribs;
s202, applying temperature to the inner mold, the molded inner skin and the unformed inner ring rib.
According to the technology provided by the invention, the inner annular rib and the foam core are firstly installed on the outer side of the cured inner skin together, and then the temperature is applied to the inner annular rib and the foam core together, so that the curing of the inner annular rib is realized. At this moment, the foam core can act as the mould of inner ring muscle in the curing forming process for inner ring muscle is at the forming process, and its shape can be controlled, thereby can avoid the hypotenuse that produces among the prior art after the inner ring muscle shaping, and then can reduce once and repair the step of polishing of cutting, has simplified the processing step.
Further, step S2 further includes:
s203, trimming the surfaces of the formed inner annular ribs and the foam core.
After the inner ring ribs and the foam core are cured and molded, the surfaces of the inner ring ribs and the foam core are trimmed, so that the outer skin is conveniently molded.
Further, step S1 includes:
s101, covering an ablation-resistant layer on an inner mold, and applying temperature to the inner mold and the ablation-resistant layer;
s102, winding the raw material of the inner skin to the outer side of the ablation-resistant layer, and applying temperature to the inner mold and the unformed inner skin.
Further, step S3 includes:
s301, winding the outer skin raw material to the outer sides of the cured inner ring ribs and the foam core;
s302, winding the outer annular rib raw material on the outer sides of the solidified foam core and the inner annular rib;
s302, applying temperature to the inner mold and the carbon fiber composite material cylinder.
Further, the method also comprises the following steps:
s4, separating the inner mold from the carbon fiber composite material cylinder;
step S4 is performed after step S3 is completed.
Further, in the embodiment of the present invention, the inner mold includes a mold body 11, and the mold body 11 has a cylindrical structure. The outer surface of the die body 11 is a molding surface, and the die body 11 is formed by splicing a first molding member 111 and a second molding member 112. The first molded part 111 has a first end 1113 and a second end 1114, and the cross-sectional area of the first molded part 111 gradually decreases in a direction from the first end 1113 toward the second end 1114.
Step S4 includes:
s401. move the first profile part 111 in a direction in which the second end 1114 points towards the first end 1113.
S402, after the first forming piece 111 is completely separated from the carbon fiber composite material barrel, separating the second forming piece 112 from the carbon fiber composite material barrel.
Further, the inner mold is rotated while the curing process is performed.
During curing, the inner die is rotated, so that the influence of gravity on curing is eliminated, and the resin on the carbon fiber composite material cylinder can be distributed more uniformly.
Further, in step S402, when the second molded article 112 is demolded, it is moved in the direction opposite to the demolding direction of the first molded article 111.
In the present invention, the curing process means that the carbon fiber raw material impregnated with the resin is wound around a mold and is formed into a fixed shape at a temperature sufficient to cure the resin.
The processing method provided by the invention has the beneficial effects that:
1. the foam core can act as the mould of inner ring muscle in the curing forming process for inner ring muscle is in the forming process, and its shape can be controlled, thereby can avoid the hypotenuse that produces among the prior art after the inner ring muscle shaping, and then can reduce once to repair and cut the step of polishing, has retrencied the processing step.
2. Before the inner skin is formed, the ablation-resistant layer is sprayed on the inner mold, after the carbon fiber composite material cylinder is formed, the inner layer of the carbon fiber composite material cylinder is covered with the ablation-resistant layer, the smoothness of the ablation-resistant layer is guaranteed by the surface smoothness of the mold, the surface smoothness of the ablation-resistant layer can be effectively controlled, and the requirement of the working environment can be better met by the inner layer of the carbon fiber composite material cylinder.
3. The structural design of the first forming piece 111 and the second forming piece 112 of the inner die provided by the invention enables the carbon fiber composite material cylinder to be smoothly demoulded, and can also avoid the generation of large friction force between the inner die and the inner surface of the formed carbon fiber composite material cylinder.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A processing method of a carbon fiber composite material cylinder comprises the following steps:
s1, winding, curing and processing an inner skin;
s2, winding, curing and processing the inner ring ribs;
s3, winding, curing and processing the outer skin and the outer ring ribs;
wherein the step S2 includes:
s201, winding at least two inner annular rib raw materials to the outer side of the solidified inner skin, and installing a foam core between the inner annular ribs;
s202, applying temperature to the inner mold, the formed inner skin and the unformed inner ring rib to enable the inner ring rib to be cured and formed.
2. The carbon fiber composite material tube processing method as claimed in claim 1, wherein the step S2 further includes:
s203, trimming the surfaces of the formed inner annular ribs and the foam core.
3. The carbon fiber composite material tube processing method as claimed in claim 1, wherein the step S1 includes:
s101, covering an ablation-resistant layer on an inner mold, and applying temperature to the inner mold and the ablation-resistant layer;
s102, winding the raw material of the inner skin to the outer side of the ablation-resistant layer, and applying temperature to the inner mold and the unformed inner skin to cure and mold the inner skin.
4. The carbon fiber composite material tube processing method according to any one of claims 1 to 3, wherein the step S3 includes:
s301, winding the outer skin raw material to the outer sides of the cured inner ring ribs and the foam core;
s302, winding the outer annular rib raw material on the outer sides of the solidified foam core and the inner annular rib;
and S303, applying temperature to the inner mold and the carbon fiber composite material cylinder to solidify and mold the outer ring rib.
5. The method of processing a carbon fiber composite cartridge according to claim 4, wherein the inner mold is rotated while the curing process is being performed.
6. The carbon fiber composite cartridge processing method according to claim 1, further comprising the steps of:
s4, separating the inner mold from the carbon fiber composite material cylinder;
the step S4 is performed after the step S3 is completed.
7. The carbon fiber composite material cylinder processing method according to claim 6, wherein the inner mold comprises a mold body, and the mold body is of a cylindrical structure;
the outer surface of the die body is a molding surface, and the die body is formed by splicing a first molding piece and a second molding piece;
the first molding part is provided with a first end and a second end, and the cross-sectional area of the first molding part is gradually reduced along the direction from the first end to the second end;
the step S4 includes:
s401, enabling the first forming piece to move along the direction that the second end points to the first end;
s402, separating the second forming piece from the carbon fiber composite material cylinder.
8. The method of processing a carbon fiber composite material tube as claimed in claim 7, wherein in the step S402, the second molded member is moved in a direction opposite to a direction in which the first molded member is removed from the mold.
CN201811639561.0A 2018-12-29 2018-12-29 Processing method of carbon fiber composite material cylinder Active CN111376502B (en)

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CN111376502B CN111376502B (en) 2022-05-10

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094441U (en) * 1991-06-19 1992-01-29 余杭县江南新型建筑材料厂 Drain pipe mould
US20100302658A1 (en) * 2009-05-26 2010-12-02 Takashi Watanabe Sliding member structure and manufacturing method of the same
US20120188042A1 (en) * 2010-08-20 2012-07-26 Claude Timothy J Implantable medical device electrical lead body
CN103322854A (en) * 2013-06-27 2013-09-25 北京航天新风机械设备有限责任公司 Composite launcher tube and production method thereof
CN103395194A (en) * 2013-08-05 2013-11-20 河北东恒宇功能材料新技术有限公司 Manufacture method for composite-material launch canister of high-altitude fire-extinguishing rocket
CN107525435A (en) * 2017-08-28 2017-12-29 北京航天发射技术研究所 A kind of composite hatchcover and preparation method thereof
CN108000905A (en) * 2017-12-14 2018-05-08 郑州四维特种材料有限责任公司 A kind of pbo fiber composite material boring bar and preparation method thereof
CN208294064U (en) * 2018-04-23 2018-12-28 中国电建市政建设集团有限公司 A kind of fixed structure for concatemer thin-walled silo sliding mode system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094441U (en) * 1991-06-19 1992-01-29 余杭县江南新型建筑材料厂 Drain pipe mould
US20100302658A1 (en) * 2009-05-26 2010-12-02 Takashi Watanabe Sliding member structure and manufacturing method of the same
US20120188042A1 (en) * 2010-08-20 2012-07-26 Claude Timothy J Implantable medical device electrical lead body
CN103322854A (en) * 2013-06-27 2013-09-25 北京航天新风机械设备有限责任公司 Composite launcher tube and production method thereof
CN103395194A (en) * 2013-08-05 2013-11-20 河北东恒宇功能材料新技术有限公司 Manufacture method for composite-material launch canister of high-altitude fire-extinguishing rocket
CN107525435A (en) * 2017-08-28 2017-12-29 北京航天发射技术研究所 A kind of composite hatchcover and preparation method thereof
CN108000905A (en) * 2017-12-14 2018-05-08 郑州四维特种材料有限责任公司 A kind of pbo fiber composite material boring bar and preparation method thereof
CN208294064U (en) * 2018-04-23 2018-12-28 中国电建市政建设集团有限公司 A kind of fixed structure for concatemer thin-walled silo sliding mode system

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