KR19990061527A - Flexible composite tube manufacturing method and tool - Google Patents
Flexible composite tube manufacturing method and tool Download PDFInfo
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- KR19990061527A KR19990061527A KR1019970081794A KR19970081794A KR19990061527A KR 19990061527 A KR19990061527 A KR 19990061527A KR 1019970081794 A KR1019970081794 A KR 1019970081794A KR 19970081794 A KR19970081794 A KR 19970081794A KR 19990061527 A KR19990061527 A KR 19990061527A
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- South Korea
- Prior art keywords
- tool
- female
- prepreg
- female tool
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 10
- 239000004945 silicone rubber Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002407 reforming Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2883/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as mould material
-
- 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
- B29L2023/00—Tubular articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
본 발명은 굴곡형 복합재 튜브 제조방법 및 그 툴에 관한 것으로, 특히 실리콘 고무로 된 메일 툴(1)의 외주에 프리프레그(4)를 와인딩하여 적층하고, 상기 프리프레그(4)가 적층된 메일 툴(1)을 피메일 툴(2) 하판(2b)의 홈(2c)에 넣은 다음, 그 위에 상판(2a)의 홈(2c)에 메일 툴(1)의 상부 절반이 수용되도록 상판(2a)을 덮어 폐형하고나서 상기와 같이 폐형된 피메일 툴(2) 외부에 실링테이프(3)를 감아서 피메일 툴(2)을 밀봉한다.BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a curved composite tube and a tool thereof, and in particular, a prepreg (4) is wound and laminated on the outer circumference of a mail tool (1) made of silicone rubber, and the prepreg (4) is laminated. The tool 1 is placed in the groove 2c of the lower plate 2b of the female tool 2, and then the upper plate 2a is accommodated in the groove 2c of the upper plate 2a so that the upper half of the mail tool 1 is received thereon. ), And then the sealing tool 3 is wrapped around the closed female tool 2 as described above to seal the female tool 2.
그리고나서 상기와 같이 밀봉된 피메일 툴(2)을 오토클레이브(도시안됨)안에 넣고 고온·고압으로 적정시간 동안 가열하여 상기 피메일 툴(2) 내부의 프리프레그(4)를 경화시켜 튜브를 성형한 후, 먼저 피메일 툴(2)을 개형하고나서 메일 툴(1)을 피메일 툴(2)로 부터 꺼낸 다음, 경화된 프리프레그(4)에서 메일 툴(1)을 분리해내어 튜브를 완성한다.Then, the sealed female tool 2 as described above is placed in an autoclave (not shown) and heated at a high temperature and high pressure for a predetermined time to cure the prepreg 4 inside the female tool 2 so as to harden the tube. After molding, the female tool 2 is first modified, and then the male tool 1 is removed from the female tool 2, and then the male tool 1 is detached from the cured prepreg 4, and the tube is removed. To complete.
Description
본 발명은 우주항공용 구조물에 사용되는 굴곡형 복합재 튜브의 제조방법 및 그 장치에 관한 것으로, 특히 금속재질로서는 제작이 어려운 복잡한 굴곡형 튜브를 제조하는 방법 및 그 장치에 관한 것이다.The present invention relates to a method and apparatus for manufacturing a flexible composite tube for use in aerospace structures, and more particularly, to a method and apparatus for manufacturing a complex curved tube difficult to fabricate with a metal material.
일반적으로 우주항공용 구조물이나 일반산업용 구조물에 사용되는 튜브는 강성이 충분하고 무게도 가벼워야 하는 특성을 고려하여 최근에는 복합재 튜브가 많이 사용되고 있다.In general, a tube used in aerospace structures or general industrial structures is a composite tube is used a lot in recent years in consideration of the characteristics that the rigidity and light weight should be sufficient.
이러한 복합재 튜브는 원기둥 형태의 메일 툴(male tool)이나 피메일 툴을 사용하여 그 외주 또는 내측면에 섬유와 수지가 서로 혼합된 소위 프리프레그(Prepreg)를 적층한 상태에서 오토클레이브(Autoclave) 내부에서 고온·고압으로 성형하여 경화시킨 다음, 내부의 메일 툴 또는 외부의 피메일 툴을 분리제거하여 제작한다.This composite tube is formed inside a autoclave with a so-called prepreg in which fiber and resin are mixed with each other on the outer circumferential or inner surface thereof using a cylindrical male tool or a female tool. It is formed by hardening at high temperature and high pressure at, and then prepared by separating and removing the internal mail tool or the external female tool.
그런데 메일 툴을 사용하여 복합재 튜브를 제작하는 경우는 복합재 튜브의 내경치수는 정확하게 맞추어 낼 수는 있지만, 프리프레그의 바깥쪽 면의 치수가 그대로 튜브외측치수를 이루기 때문에 제품 외경의 치수는 정확하게 맞출 수 없는 문제가 있다.However, if the composite tube is manufactured using the mail tool, the inner diameter of the composite tube can be precisely matched, but the outer diameter of the prepreg is exactly the outer dimension of the tube. There is no problem.
한편, 피메일 툴을 사용하는 경우는 굴곡진 외측 형상은 비교적 정확하게 맞출 수 있는 장점은 있지만, 툴 내부의 치수를 맞추기 위해서는 내부에 압력을 충분히 가해주어야 하는 데 피메일 툴 내부에 압력을 충분한 압력을 유지시키기 어렵고 툴 제작에 고비용이 소요되는 단점이 있다.On the other hand, in the case of using the female tool, the curved outer shape has a merit of being able to fit relatively accurately. However, in order to fit the inside of the tool, sufficient pressure must be applied to the inside of the female tool. The disadvantage is that it is difficult to maintain and expensive to manufacture the tool.
이에 본 발명은 상기 종래 메일 툴 또는 피메일 툴을 사용하여 굴곡형 복합재 튜브 제조방법이 가진 문제점을 해결하고자 고안된 것으로서, 튜브의 외측 치수와 형상을 정확히 맞출 수 있으며 튜브가 경화된 후 툴을 분리해내기 쉬운 굴곡형 복합재 튜브의 제조방법 및 그 툴을 제공함에 목적이 있다.Therefore, the present invention is designed to solve the problems with the method of manufacturing a flexible composite tube using the conventional mail tool or the female tool, it is possible to accurately match the outer dimension and shape of the tube and to separate the tool after the tube is cured An object of the present invention is to provide a method for manufacturing a flexible composite tube and a tool thereof.
상기 목적을 달성하기 위한 본 발명에 따른 복합재 튜브 제조용 툴은 실리콘 고무등 팽창가능한 탄성재질로 된 메일 툴과,상기 메일 툴를 각각 그 형상대로 수용하여 지지하도록 메일툴의 형상에 대응하는 홈이 형성된 피메일 툴 및 상기 상·하판이 서로 포개어져 폐형된 피메일 툴을 외측을 감싸서 밀봉해주는 실링테이프로 이루어져 있다.The tool for manufacturing a composite tube according to the present invention for achieving the above object is a mail tool made of an expandable elastic material such as silicone rubber, and a groove having a groove corresponding to the shape of the mail tool formed to receive and support the mail tool in its shape, respectively. The mail tool and the upper and lower plates are stacked with each other, and are formed of a sealing tape that seals and seals the closed female tool.
또한 상기 목적을 달성하기 위한 굴곡형 복합재 튜브제조방법은 실리콘 고무로 된 메일 툴의 외주에 프리프레그를 와인딩하여 적층하는 프리프레그 와인딩단계와, 상기 프리프레그가 적층된 메일 툴을 피메일 툴에 넣고 폐형하는 피메일 툴 조립단계와, 상기와 같이 폐형된 피메일 툴 외부에 실링테이프를 감아서 피메일 툴을 밀봉하는 실링단계와, 상기와 같이 실링된 피메일 툴을 오토클레이브안에 넣고 고온·고압으로 가열하여 상기 피메일 툴 내부의 프리프레그를 경화시키는 성형단계 및 상기한 단계에서 피메일 툴을 개형한 후 메일 툴을 분리해내어 튜브를 완성하는 툴 분리단계로 이루어져 있다.In addition, the curved composite tube manufacturing method for achieving the above object is a prepreg winding step of winding the prepreg on the outer circumference of the silicon rubber mail tool, and the mail tool with the prepreg laminated in the female tool Assembly of the closed female tool, the sealing step of sealing the female tool by wrapping the sealing tape outside the closed female tool as described above, and the sealed female tool as described above in a high temperature and high pressure It is composed of a molding step of curing the prepreg inside the female tool by heating to and a tool separation step of completing the tube by reforming the female tool in the above-described step and completing the tube.
상기한 바와 같이 본 발명에 따라 복합재 튜브를 제작하면 메일 툴과 피메일 툴을 동시에 사용하므로 튜브의 외측 치수를 정확하게 맞출 수 있으며, 또한 메일 툴을 실리콘 고무등 한 번에 성형가능한 재질을 사용함으로써 복잡한 형상의 튜브를 제작하는 데 필요한 툴 제작비용이 적게 들 뿐 아니라 복잡한 형상의 튜브를 제작하는 것도 가능해지며, 메일 툴이 열팽창하는 탄성재로 되어 성형시 팽창하여 프리프레그를 안쪽에서 적당한 압력으로 지지하게 되므로 튜브의 내측 치수 및 형상이 정확해지고 성형이 완료된 후에는 다시 수축하여 튜브로부터 분리해내기가 쉬워지는 효과가 있는 것이다.As described above, when the composite tube is manufactured according to the present invention, since the mail tool and the female tool are used at the same time, the outer dimension of the tube can be precisely matched, and the mail tool is complicated by using a moldable material such as silicone rubber at once. In addition to the low cost of manufacturing the tool required to make the tube, it is also possible to produce a tube of complex shape, and the mail tool is made of a thermally expanding elastic material that expands during molding to support the prepreg at an appropriate pressure from the inside. As a result, the inner dimension and shape of the tube are accurate, and after the molding is completed, the tube shrinks again and is easily separated from the tube.
도 1 은 본 발명에 따른 굴곡형 복합재 튜브제조용 툴의 분해사시도,1 is an exploded perspective view of a tool for manufacturing a curved composite tube according to the present invention;
도 2 는 본 발명에 따른 복합재 튜브 제조방법의 단계적으로 도시한 사시도로서,Figure 2 is a perspective view showing a step by step of the composite tube manufacturing method according to the present invention,
도 2a 는 메일툴의 외주에 프리프레그를 와인딩하여 적층하는 단계,Figure 2a is winding the prepreg on the outer circumference of the mail tool to laminate;
도 2b 는 메일툴의 외주에 프리프레그가 적층완료된 단계,Figure 2b is the step of prepreg laminated on the outer periphery of the mail tool,
도 2c 는 프리프레그가 적층된 메일툴을 피메일툴에 설치하고 그 피메일툴 외부를 실링테이프로 밀봉한 단계의 사시도이다.Fig. 2C is a perspective view of a step in which a prepreg-laminated mail tool is installed in the female tool and the outside of the female tool is sealed with a sealing tape.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
1: 메일 툴 2; 피메일 툴1: mail tool 2; Email tools
2a: 피메일 툴 상판 2b: 피메일툴 하판2a: top of female tools 2b: bottom of female tools
2c: 홈 3: 실링테이프2c: groove 3: sealing tape
4: 프리프레그4: prepreg
이하 본 발명에 따른 굴곡형 복합재튜브 제조방법 및 그 툴을 첨부된 도면에 따라 상세히 설명한다.Hereinafter, a method of manufacturing a curved composite tube and a tool thereof according to the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 굴곡형 복합재튜브 제조방법에 사용되는 툴은, 도 1에 도시된 바와 같이, 실리콘 고무등 열팽창가능한 탄성재질로 된 메일 툴(1)과, 상·하판(2a,2b)으로 이루어지면서 상·하판(2a,2b)에는 상기 메일 툴(1)의 상·하부를 각각 그 형상대로 수용하여 지지하도록 메일 툴(1)의 형상에 대응하는 홈(2c)이 각각 형성된 피메일 툴(2) 및 상기 상·하판(2a,2b)이 서로 포개어져 폐형된 피메일 툴(2)을 외측을 감싸서 밀봉해주는 실링테이프(3)로 이루어져 있다.The tool used in the flexible composite tube manufacturing method according to the present invention, as shown in Figure 1, consists of a mail tool (1) made of a thermally expandable elastic material such as silicone rubber, and the upper and lower plates (2a, 2b) The female tool in which the grooves 2c corresponding to the shape of the male tool 1 are formed in the upper and lower plates 2a and 2b so as to receive and support the upper and lower portions of the male tool 1 in its shape. 2) and the upper and lower plates 2a and 2b are formed of a sealing tape 3 which surrounds and seals the closed female tool 2 by overlapping each other.
본 발명에 따른 굴곡형 복합재 튜브를 제조할 때 실리콘 고무로 된 메일 툴(1)의 외주에 프리프레그(4)를 와인딩하여 적층한다. 그리고 상기 프리프레그(4)가 적층된 메일 툴(1)을 피메일 툴(2) 하판(2b)의 홈(2c)에 넣은 다음, 그 위에 상판(2a)의 홈(2c)에 메일 툴(1)의 상부 절반이 수용되도록 상판(2a)을 덮어 폐형한다. 상기와 같이 폐형된 피메일 툴(2) 외부에 실링테이프(3)를 감아서 피메일 툴(2)을 밀봉한다.When manufacturing the curved composite tube according to the present invention, the prepreg 4 is wound and laminated on the outer circumference of the male tool 1 made of silicone rubber. Then, the mail tool 1 on which the prepreg 4 is stacked is placed in the groove 2c of the lower plate 2b of the female tool 2, and then the mail tool 1 is placed in the groove 2c of the upper plate 2a. Cover the top plate (2a) so that the upper half of 1) is closed. The sealing tool 3 is wound around the closed female tool 2 as described above to seal the female tool 2.
그리고나서 상기와 같이 밀봉된 피메일 툴(2)을 오토클레이브(도시안됨)안에 넣고 고온·고압으로 적정시간 동안 가열하여 상기 피메일 툴(2) 내부의 프리프레그(4)를 경화시켜 튜브를 성형한다.Then, the sealed female tool 2 as described above is placed in an autoclave (not shown) and heated at a high temperature and high pressure for a predetermined time to cure the prepreg 4 inside the female tool 2 so as to harden the tube. Mold.
이때 상기 메일 툴(1)은 프리프레그(4)를 내부에서 일정한 압력으로 지지해주므로 프리프레그(4)가 성형될 때 내부치수와 형상이 메일 툴(1)의 치수와 형상 그대로 유지되어 정확하게 되는 것이다.At this time, since the mail tool 1 supports the prepreg 4 at a predetermined pressure therein, the internal dimension and shape of the prepreg 4 are precisely maintained while maintaining the dimensions and shape of the mail tool 1. will be.
상기한 바와 같이 튜브의 성형이 완료되고 나면 먼저 피메일 툴(2)을 개형한 후 메일 툴(1)을 피메일 툴(2)로 부터 꺼낸 다음, 경화된 프리프레그(4)에서 메일 툴(1)을 분리해내어 튜브를 완성한다.As described above, after the forming of the tube is completed, the female tool 2 is first remodeled, and then the male tool 1 is taken out of the female tool 2, and then, the hardened prepreg 4 is used. Remove 1) to complete the tube.
상기한 바와 같이 본 발명에 따르면 복합재 튜브를 제작할 때 메일 툴(1)과 피메일 툴(2)을 동시에 사용하므로 튜브의 내·외측 치수를 정확하게 맞출 수 있으며, 또한 메일 툴(1)을 실리콘 고무등 한 번에 성형가능한 재질을 사용함으로써 복잡한 형상의 튜브를 제작하는 데 필요한 툴 제작비용이 적게 들 뿐 아니라 복잡한 형상의 튜브를 제작하는 것도 가능해지며, 메일 툴(1)이 실리콘고무등 열팽창하는 탄성재로 되어 성형할 때에는 팽창하여 프리프레그를 안쪽에서 적당한 압력으로 지지하므로 튜브의 내측 치수 및 형상이 정확해지고 아울러 성형완료후에는 메일 툴이 다시 수축하게 되므로 튜브성형후 메일 툴을 분리제거해 내기가 쉬운 효과가 있는 것이다.As described above, according to the present invention, since the male tool 1 and the female tool 2 are used at the same time when manufacturing the composite tube, the inner and outer dimensions of the tube can be precisely adjusted, and the male tool 1 is made of silicone rubber. By using a material that can be molded at one time, it is possible not only to reduce the tool manufacturing cost required to make a complicated tube, but also to produce a tube of a complicated shape. The elasticity of the thermal expansion tool such as silicone rubber It is easy to separate and remove the mail tool after tube molding because the inner dimension and shape of the tube are accurate and the mail tool is retracted after the molding is completed because it expands and supports the prepreg at an appropriate pressure from the inside when molding. It works.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970081794A KR100264969B1 (en) | 1997-12-31 | 1997-12-31 | Method and tools making a curved tube composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970081794A KR100264969B1 (en) | 1997-12-31 | 1997-12-31 | Method and tools making a curved tube composite material |
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| Publication Number | Publication Date |
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| KR19990061527A true KR19990061527A (en) | 1999-07-26 |
| KR100264969B1 KR100264969B1 (en) | 2000-09-01 |
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| KR101887759B1 (en) | 2016-10-05 | 2018-08-13 | 현대자동차주식회사 | Manufacturing apparatus of hybrid pin and method of the same |
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