KR100218747B1 - Fuel tank liner manufacturing method for the airplane complex material - Google Patents
Fuel tank liner manufacturing method for the airplane complex material Download PDFInfo
- Publication number
- KR100218747B1 KR100218747B1 KR1019960076860A KR19960076860A KR100218747B1 KR 100218747 B1 KR100218747 B1 KR 100218747B1 KR 1019960076860 A KR1019960076860 A KR 1019960076860A KR 19960076860 A KR19960076860 A KR 19960076860A KR 100218747 B1 KR100218747 B1 KR 100218747B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel tank
- aircraft
- sheet
- roll
- manufacturing
- Prior art date
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000011365 complex material Substances 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 239000005060 rubber Substances 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 229920005560 fluorosilicone rubber Polymers 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000004898 kneading Methods 0.000 claims abstract description 9
- WRXCBRHBHGNNQA-UHFFFAOYSA-N (2,4-dichlorobenzoyl) 2,4-dichlorobenzenecarboperoxoate Chemical compound ClC1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1Cl WRXCBRHBHGNNQA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000007652 sheet-forming process Methods 0.000 claims abstract description 6
- 238000013329 compounding Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000009730 filament winding Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 5
- 230000007123 defense Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
- B29C53/845—Heating or cooling especially adapted for winding and joining
-
- 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
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding 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
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7172—Fuel tanks, jerry cans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
본 발명의 항공기용 복합재 연료탱크 라이너의 제조방법에 관한 것으로, 불소실리콘 고무(FVMQ)를 막이겨 주는 반죽공정, 반죽된 고무에 2,4-디클로로 벤조일퍼록사이드(2,4-dichloro benzoyl peroxide)를 첨가하여 고루 배합해주는 경화제배합공정, 이 배합고무를 압출기를 이용하여 쉬이트(sheet) 상으로 성형해주는 쉬이트 성형공정, 상기 쉬이트를 맨드릴(mandrel)에 감거나 입혀주는 경화공정을 포함하여 구성함으로써, 내유성, 내열성 및 저온 특성이 우수한 불소 실리콘 고무(FVMQ)를 소재로 하는 항공기용 복합재 연료탱크의 라이너(liner)를 실용적으로 성형 제조해줄 수 있는 것이다.The present invention relates to a method for manufacturing a composite fuel tank liner for an aircraft, comprising a kneading process for blocking fluorosilicone rubber (FVMQ), and 2,4-dichloro benzoyl peroxide on the kneaded rubber. A hardening agent compounding process for uniformly adding the compound, a sheet forming process for forming the compounded rubber into a sheet using an extruder, and a hardening process for winding or coating the sheet in a mandrel. By constructing, a liner of an aircraft composite fuel tank made of fluorosilicone rubber (FVMQ) having excellent oil resistance, heat resistance and low temperature characteristics can be practically molded and manufactured.
Description
본 발명은 항공기용 복합재 연료탱크 라이너의 제조방법에 관한 것으로, 특히 내유성, 내열성 및 저온특성이 우수한 불소 실리콘 고무(FVMQ)를 소재로 하여 항공기용 복합재 연료탱크의 라이너(liner)를 실용적으로 성형 제조해 줄 수 있는 항공기용 복합재 연료탱크 라이너의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a composite fuel tank liner for aircraft, and in particular, forming a liner (liner) of the composite fuel tank for aircraft using fluorosilicone rubber (FVMQ) having excellent oil resistance, heat resistance and low temperature characteristics. The present invention relates to a method for manufacturing a composite fuel tank liner for an aircraft.
일반적으로 항공기용 연료탱크의 라이너(liner)에는 내유성, 내열성, 내한성 등의 물성이 우수한 소재가 요구되는 바, 그동안 주로 알루미늄 소재가 이용되어 왔으나, 최근 각종 소재의 경량화 추세에 따라 가벼운 고분자 재료의 이용이 늘어가고 있는 추세이다.In general, the liner (liner) of the fuel tank for the aircraft is required to have excellent physical properties such as oil resistance, heat resistance, cold resistance, etc. During this time, mainly aluminum materials have been used, but light polymer materials have recently been used in accordance with the trend of light weight of various materials. This is an increasing trend.
그동안 연료탱크 라이너의 소재로 사용되어 왔던 고분자 재료는 EDPN, NBR과 같은 전통적인 합성고무와, 폴리에스테르, 폴리우레탄 등의 열가소성 탄성중합체(thermoplastic elastomer)인 열가소성 고무가 있었다. 이중 전통적인 합성고무를 사용하여 연료탱크 라이너를 제조하는 방법은, 재료를 먼저 쉬이트(sheet)상으로 성형하고 이 쉬이트를 연료탱크의 맨드릴(mandrel)에 입힌 다음, 오토클레이브(autoclave)에서 가열 가압하여 경화시켜 주는 방법인 데, 이와 같이 제조한 연료탱크 라이터는 그 소재의 특성으로 인해 항공기용 요구특성을 제대로 만족시켜 줄 수 가 없었다.The polymer materials that have been used as fuel tank liners have been conventional synthetic rubbers such as EDPN and NBR, and thermoplastic rubbers that are thermoplastic elastomers such as polyester and polyurethane. The method of manufacturing fuel tank liners using traditional synthetic rubber is that the material is first molded into a sheet and the sheet is applied to the mandrel of the fuel tank and then heated in an autoclave. Pressurized hardening method, the fuel tank lighter manufactured in this way could not meet the requirements of the aircraft due to the characteristics of the material.
그리고 상기 열가소성 고무를 이용하는 경우에는 그 소재가 열가소성을 가지기 때문에 성형성이 우수하여, 일반적인 열가소성 수지의 성형시 이용하는 회전몰딩(rotational molding), 블로우 몰딩(blow molding)등과 같은 방법으로 연료탱크라이너를 비교적 용이하게 제조할 수 있다. 그러나, 항공기용 연료탱크는 그 크기가 2m이상의 대형이기 때문에 상기와 같은 성형법으로 제조하기에는 상당히 까다로운 문제가 있다.In the case of using the thermoplastic rubber, since the material is thermoplastic, the moldability is excellent, and thus, the fuel tank liner is relatively formed by a method such as rotational molding, blow molding, or the like used in molding a general thermoplastic resin. It can be manufactured easily. However, the fuel tank for the aircraft has a problem that is quite difficult to manufacture by the molding method because the size of the large size of 2m or more.
이에 본 발명은 내유성, 저온 및 내열특성이 우수하여 항공기용 연료탱크의 요구특성을 잘 충족시켜 줌에도 불구하고, 성형작업성이 불량하여 항공기용 연료탱크 라이너의 소재로 실용화하기에 어려움이 많았던 불소-실리콘 고무(FVMQ)를 소재로 하여, 항공기용 복합재 연료탱크의 라이너를 실용적으로 제조해 줄 수 있는 제조방법을 제공하는 데 그 목적이 있다.Therefore, the present invention is excellent in oil resistance, low temperature, and heat resistance, but it meets the requirements of the fuel tank for the aircraft, but the molding workability is poor, so it is difficult to practically use as a material of the fuel tank liner for the aircraft. It is an object of the present invention to provide a manufacturing method that can practically manufacture the liner of a composite fuel tank for aircraft, based on silicon rubber (FVMQ).
상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 항공기용 복합재 연료 탱크라이너의 제조방법은, 불소 실리콘 고무를 막이겨 주는 반죽공정, 반죽된 고무에 2,4-디클로로 벤조일 퍼록사이드(2,4-dichloro benzoyl peroxide)를 첨가하여 고루 배합시켜 주는 경화제 배합공정, 이 배합고무를 압출기를 이용하여 쉬이트(sheet)상으로 성형해주는 쉬이트 성형공정, 상기 쉬이트를 맨드릴(manderl)에 감거나 입혀주는 맨드릴 피복공정, 및 상기 맨드릴에 피복된 고무를 열풍에 의해 경화시키는 경화공정을 포함하여 구성된다.Method for producing a composite composite fuel tank liner for an aircraft according to the present invention for achieving the above object, the kneading process to block the fluorosilicone rubber, 2,4-dichloro benzoyl peroxide (2,4) in the kneaded rubber -Hardening agent compounding process to evenly add -dichloro benzoyl peroxide), sheet forming process for forming the compounding rubber into a sheet using an extruder, winding or coating the sheet on a mandrel The mandrel covering process is comprised, and the hardening process of hardening | curing the rubber | gum coated on the said mandrel by hot air is comprised.
제1도는 본발명에 따른 제조방법을 도시한 순서도.1 is a flow chart illustrating a manufacturing method according to the present invention.
제2도는 본 발명에 따른 경화조건을 도시한 그래프이다.2 is a graph showing the curing conditions according to the present invention.
이하 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 항공기용 복합재 연료탱크 라이너의 제조방법을 도시한 공정순서도로서, 도시되어 있는 바와 같이, 본 발명의 제조방법은 고무반죽공정, 경화제배합공정, 쉬이트 성형공정, 맨드릴 피복공정, 및 경화공정 순으로 구성되어 있는 데, 각 공정에 대해 상세히 설명하면 다음과 같다.1 is a process flow chart showing a method for manufacturing a composite fuel tank liner for an aircraft according to the present invention, as shown, the manufacturing method of the present invention is a rubber dough process, hardener formulation process, sheet forming process, mandrel coating The process and the hardening process are made in order, and each process is explained in full detail as follows.
첫째로, 고무 반죽공정은 불소실리콘 고무에 가소성을 부여해 주기 위해 막이겨주는 공정으로, 바람직한 방법으로는, 로울(roll)로 조립된 밀(mill)에서 밀링(milling)작업으로 수행해 줄 수 있는 데, 그 구체적인 공정조건의 일예는 상온(18 - 25℃)서 로울의 속도를 60-80cm/min으로 하고, 탑로울(top roll)의 속도는 그 1.2배로 하여 30 - 50분동안 반죽을 해준다.Firstly, the rubber kneading process is a process of clogging to give plasticity to fluorosilicone rubber. Preferably, the kneading process can be performed by milling in a mill assembled with rolls. For example, the specific process conditions are at room temperature (18-25 ° C.) and the roll speed is 60-80 cm / min, and the top roll speed is 1.2 times that for kneading for 30-50 minutes.
본 고무 반죽공정에서는 고무중의 치밀한 사슬(chain)조직이 파괴되어 고무가 가소성을 가지게 됨으로써, 다음 공정에서 첨가되는 경화제로 하여금 균일하게 잘 분산되도록 해준다.In the present rubber kneading process, the dense chain structure in the rubber is broken so that the rubber has plasticity, so that the curing agent added in the next step is uniformly well dispersed.
둘째로, 경화제배합공정은 상기 고무 반죽공정에 의해 막이겨진 고무반죽에 2,4-디클로로 벤조일 퍼록사이드(2,4-dicholro benzoyl peroxide) 경화제를 첨가하여 고루 배합해 주는 공정으로, 상기 고무 반죽공정과 동일한 조건으로 10 - 30분 정도의 밀링작업에 의해 수행해 줄 수 있다.Secondly, the curing agent mixing step is a step of adding the 2,4-dichloro benzoyl peroxide (2,4-dicholro benzoyl peroxide) curing agent to the rubber dough filmed by the rubber kneading process, the rubber dough It can be done by milling for 10-30 minutes under the same conditions as the process.
여기에서 상기 2,4-디클로로 벤조일 퍼록사이드는 경화시 고무 내부의 사슬조직을 서로 연결시켜 가교결합(crosslink) 조직으로 만들어 줌으로써, 고무고유의 물성을 지니게 되도록 해주는 데, 그 배합량은 불소-실리콘 고무(FVMQ)에 대해 1-3중량%로 해주는 것이 바람직하다.Here, the 2,4-dichloro benzoyl peroxide is connected to the internal structure of the rubber at the time of curing to form a crosslink (crosslink) structure, thereby having a rubber-specific properties, the compounding amount is fluorine-silicone rubber It is preferable to make 1-3 wt% based on (FVMQ).
셋째로, 쉬이트 성형공정은 상기와 같이 배합된 고무를 압출기에 의해 상온에서 쉬이트(sheet)상으로 성형해 주는 공정인 데, 이때 쉬이트의 두께는 1(±1)㎜, 폭은 80(±20)㎜, 길이는 필요에 따라 얼마든지 조절가능하나 1.2(±0.5)㎜정도로 성형해주는 것이 바람직하며, 또 압출속도를 저속으로 하는 이유는 고무의 점성이 크기때문에 고무가 다이(die)를 통과할 때 발생되는 저항을 최소화시켜 주기 위함이다.Third, the sheet forming process is a process of molding the rubber blended as described above into a sheet at room temperature by an extruder, wherein the sheet has a thickness of 1 (± 1) mm and a width of 80. (± 20) ㎜ and length can be adjusted as needed, but it is preferable to mold at 1.2 (± 0.5) ㎜, and the reason for lowering the extrusion speed is that rubber is die because of high viscosity of rubber. This is to minimize the resistance generated when passing through.
넷째로 맨드릴 피복공정은 상기의 쉬이트를 경화되기 전에 연료탱크의 맨드릴(mandrel)에 입히거나 감아주는 공정으로, 구체적인 방법으로는, 맨드릴을 필라멘트와인딩 머신(filament winding machine)에 정착하고, 그 맨드릴에 상기 쉬이트를 10 - 30㎜정도 일단 접착시킨 후, 스핀들 축을 10 -15rpm의 저속으로 회전시키면서 3-7㎜정도로 서로 겹치게 하여 상기 맨드릴에 쉬이트를 입혀주며, 이때 겹친 부위는 로울러로 압착하여 다져준다.Fourthly, the mandrel coating process is a process of coating or winding a mandrel of a fuel tank before the sheet is cured. After bonding the sheet about 10-30 mm, the spindle shaft is rotated at a low speed of 10-15 rpm and the sheets overlap with each other about 3-7 mm, and the sheets are coated on the mandrel. give.
다섯째로, 경화공정은 상기의 맨드릴에 피복된 고무 쉬이트를 열품에 의해 경화시켜 주는 공정으로, 상기 맨드릴을 항온 열풍기에 고정시킨 다음 열품을 가해주면 되는 데, 이때 바람직한 경화조건은 도 2에 도시된 바와 같다. 즉, 상온에서 1 - 3℃/min의 승온속도로 승온시켜 120-140℃범위내에서 3-5시간동안 열풍을 가해 1차 경화시키고, 다시 1-3℃/min의 승온속도로 승온시켜 180-220℃의 고온에서 6-8시간동안 열풍을 가하여 2차 경화시켜 준 후, 3-5℃/min의 하강속도로 25-50℃로 냉각시켜 주는 것이 바람직한 데, 1차경화시에는 기본적인 맨드릴 형상이 갖추어지게되고, 2차경화시에는 고무의 경화밀도(cure density)가 증가되어 고온에서의 물성이 향상된다.Fifthly, the curing process is a process of curing the rubber sheet coated on the mandrel with a hot product, by fixing the mandrel in a constant temperature hot air and then applying a hot product, wherein the preferred curing conditions are shown in FIG. As it is. In other words, the temperature is raised to a temperature increase rate of 1-3 ℃ / min at a temperature of 1 ~ 3 ℃ / min in the range of 120-140 ℃ by hot air for 3-5 hours to cure the first, and then again at a temperature rising rate of 1-3 ℃ / min 180 It is preferable to cool it to 25-50 ℃ at the falling rate of 3-5 ℃ / min after hot curing by applying hot air for 6-8 hours at high temperature of -220 ℃. The shape is provided, and at the time of secondary curing, the cure density of the rubber is increased to improve physical properties at high temperatures.
이상에서 설명한 바와 같은 본 발명의 제조방법에 따라 항공기용 복합재 연료탱크라이너를 직접 제조하여 그 물성을 테스트하여 보았는 바, 그 구체적인 실시예와 테스트 결과는 다음과 같다.According to the manufacturing method of the present invention as described above, the composite fuel tank liner for an aircraft was manufactured directly and tested for physical properties thereof. Specific examples and test results are as follows.
즉, 불소-실리콘 고무(FVMQ) 6㎏을 밀(mill)에 의해 상온의 온도에서 로울의 속도를 70㎝/min으로 하고, 탑로울(top roll)의 속도는 그 1.2배로 하여 40분 동안 반죽공정을 수행하였다. 이와 같이 반죽한 고무에 2,4 디클로로 벤조일 퍼록사이드 120g을 첨가하여 상기 밀링작업과 동일한 조건으로 20분동안 경화제 배합공정을 수행한 후, 압출기에 배치(batch)당 2㎏식 3회에 걸쳐 투입하여 압출속도 1m/min으로 두께 1㎜, 폭 80㎜, 길이 1.2m의 쉬이트 35장을 성형하였다.That is, 6 kg of fluorine-silicone rubber (FVMQ) is milled at a temperature of room temperature using a mill, and the speed of the roll is 70 cm / min, and the speed of the top roll is 1.2 times that of the dough for 40 minutes. The process was carried out. 120 g of 2,4 dichloro benzoyl peroxide was added to the kneaded rubber, and the curing agent was blended for 20 minutes under the same conditions as the milling operation, and then introduced into the extruder three times at 2 kg per batch. 35 sheets having a thickness of 1 mm, a width of 80 mm, and a length of 1.2 m were molded at an extrusion speed of 1 m / min.
이 쉬이트를 필라멘트 와인딩 머쉰에 장착된 맨드릴위에 장비의 스핀들 축을 10rpm의 저속으로 회전시키면서 수동으로 5㎜정도가 겹치도록 입혀주었다.This sheet was coated on the mandrel mounted on the filament winding machine with manual 5 mm overlap while rotating the spindle axis of the machine at a low speed of 10 rpm.
이와 같이 맨드릴에 입혀진 고무쉬이트는 그 겹친 부위를 적절히 다진 후, 항온열풍기에 의해 도 2에 도시된 바와 같은 경화 사이클로 1,2차 경화공정을 수행해주었다.Thus, the rubber sheet coated on the mandrel was properly chopped the overlapped portion, and the first and second curing processes were performed in a curing cycle as shown in FIG.
상기와 같은 실시예에 따라 제조한 연료탱크 라이너 성형물을 5㎝ X 5㎝ 크기로 잘라서 미국방성 규격인 MIL-R-25988에 규정된 디에스테르 저항물질을 테스트하기 위한 기준 유체인 AMS 3021에 침적한 후 물성변화를 미국방성의 내유성물질규격과 비교한 결과는 다음의 표1과 같고, 또한 미국방성 규격인 MIL-R-25988에 규정된 표준실험유체 하이드로카본인 TT-S-735, TypeⅢ에 침적한 후 물성변화를 미국방성의 내유성물질규격과 비교한 결과는 표2와 같다.The fuel tank liner molding prepared according to the above example was cut into 5cm X 5cm size and deposited in AMS 3021, which is a reference fluid for testing the diester resistance material defined in MIL-R-25988. The results of comparing the physical property change with the U.S. defense oil-resistant substance standard are shown in Table 1 below, and also deposited in TT-S-735, Type III, the standard experimental fluid hydrocarbon specified in the U.S. defense standard, MIL-R-25988. The results of the comparison of physical property changes with the US Department of Defense oil-resistant materials are shown in Table 2.
상기 표에서 알 수 있는 바와 같이, 본 발명에 의해 제조된 복합재 연료탱크요 라이너는 그 소재 특성상 저온 및 내열특성이 우수함은 물론 내유성이 종래의 라이너에 비해 우수하여 항공기의 외부 연료탱크용 라이너로 사용하기에 매우 적합함을 알 수 있다. 그리고 본 발명의 복합재 연료탱크 라이너의 제조방법은 항공기용뿐만 아니라 자동차 등 기타의 연료탱크용 라이너를 제조하는 데도 유용하게 이용할수 있음은 물론이다.As can be seen in the above table, the composite fuel tank yo-liner prepared by the present invention is excellent in low temperature and heat resistance characteristics as well as excellent oil resistance compared to the conventional liner used as an external fuel tank liner of the aircraft It can be seen that the following is very suitable. In addition, the manufacturing method of the composite fuel tank liner of the present invention can be usefully used to manufacture not only aircraft but also other fuel tank liners such as automobiles.
이상에서 상세히 설명한 바와 같이, 본 발명에 따른 항공기용 복합재 연료탱크라이너의 제조방법은, 내유성, 저온 및 내열특성이 우수함에도 불구하고 성형작업성이 불량하여 항공기용 연료탱크 라이너의 소재로 실용화하기에 어려움이 많았던 불소-실리콘 고무(FVMQ)를 소재로 하는, 항공기용 복합재 연료탱크의 라이너를 실용화시켜 줄 수 있으며, 경화공정시 별도의 압력을 가하지 않고 열풍기에 의해 용이하게 열풍 경화시켜 줄 수 있는 등 제조공정이 효율적인 잇점이 있다.As described in detail above, the method of manufacturing a composite fuel tank liner for an aircraft according to the present invention, despite the excellent oil resistance, low temperature and heat resistance properties, the molding workability is poor to be used as a material of the fuel tank liner for aircraft It can make practical use of liner of composite fuel tank for aircraft made of fluorine-silicone rubber (FVMQ), which has been difficult, and can be easily cured by hot air without applying extra pressure during curing process. The manufacturing process has the advantage of being efficient.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960076860A KR100218747B1 (en) | 1996-12-30 | 1996-12-30 | Fuel tank liner manufacturing method for the airplane complex material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960076860A KR100218747B1 (en) | 1996-12-30 | 1996-12-30 | Fuel tank liner manufacturing method for the airplane complex material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980057565A KR19980057565A (en) | 1998-09-25 |
| KR100218747B1 true KR100218747B1 (en) | 1999-09-01 |
Family
ID=19492347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960076860A KR100218747B1 (en) | 1996-12-30 | 1996-12-30 | Fuel tank liner manufacturing method for the airplane complex material |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100218747B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101378916B1 (en) * | 2012-12-21 | 2014-03-28 | 평화오일씰공업 주식회사 | Rubber composition of o-ring for quick connector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140172A (en) * | 1976-12-23 | 1979-02-20 | Fansteel Inc. | Liners and tube supports for industrial and chemical process equipment |
-
1996
- 1996-12-30 KR KR1019960076860A patent/KR100218747B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140172A (en) * | 1976-12-23 | 1979-02-20 | Fansteel Inc. | Liners and tube supports for industrial and chemical process equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980057565A (en) | 1998-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08175188A (en) | Rubber compound for glass run | |
| CN101153120B (en) | Modified fluororubber gross rubber and method of producing the same | |
| CN109912857A (en) | A kind of automobile-used rubber material and the preparation method and application thereof | |
| CN110079049B (en) | Sheet molding compound resin composition, sheet molding compound and preparation method thereof | |
| CN100451417C (en) | Turbine booster hose of ethyleneacrylate rubber and its production | |
| KR100218747B1 (en) | Fuel tank liner manufacturing method for the airplane complex material | |
| CN100500428C (en) | Silicone tube with large inside diameter in lock pin and preparation method | |
| KR20170130700A (en) | Organic-inorganic hybrid composite for non-asbestos gasket with high heat resistance and manufacturing method of composite for gasket using the same | |
| CA2094564C (en) | Method for forming bodies comprising previously crosslinked thermally stable resin and product made thereby | |
| CN105985543B (en) | A kind of rubber composition and preparation method thereof | |
| KR100404076B1 (en) | Method for making synthetic rubber blend molding having excellent oil resistance and low- and high- temperature resistance | |
| US3514427A (en) | Wide temperature range multiphase viscoelastic damping compositions | |
| CN100361808C (en) | Process for producing pneumatic tire | |
| CN117820740B (en) | Engine cooling pipe and preparation process thereof | |
| CN108530859B (en) | Preparation method of particle reinforced rubber reinforced composite material | |
| CN112831157A (en) | TPEE base film of automobile protection film | |
| KR101174389B1 (en) | Rubber composition for cure bladder with improved release effect and method for preparation thereof | |
| CN101230143A (en) | Special type thermostable fluorine rubber compound | |
| KR102532532B1 (en) | Composition for silicon-based insulating hose and preparation method for insulating hose | |
| CN115368650B (en) | High-temperature-resistant oil-resistant flexible rubber sound insulation material and preparation method thereof | |
| CN117820740A (en) | Engine cooling pipe and preparation process thereof | |
| CN100513142C (en) | Producing process for overlength fluorine rubber boards | |
| CN113527774A (en) | Processing technology of rubber sealing ring | |
| CN113621221B (en) | Flame-retardant PET resin and preparation method thereof | |
| CN115071138B (en) | Large-size fluororubber sealing ring and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20130507 Year of fee payment: 15 |
|
| FPAY | Annual fee payment |
Payment date: 20140514 Year of fee payment: 16 |
|
| FPAY | Annual fee payment |
Payment date: 20150603 Year of fee payment: 17 |
|
| FPAY | Annual fee payment |
Payment date: 20160609 Year of fee payment: 18 |