KR100452204B1 - Welding method pillar pipe with fuel tank panel - Google Patents
Welding method pillar pipe with fuel tank panel Download PDFInfo
- Publication number
- KR100452204B1 KR100452204B1 KR10-2002-0030353A KR20020030353A KR100452204B1 KR 100452204 B1 KR100452204 B1 KR 100452204B1 KR 20020030353 A KR20020030353 A KR 20020030353A KR 100452204 B1 KR100452204 B1 KR 100452204B1
- Authority
- KR
- South Korea
- Prior art keywords
- welding
- fuel tank
- filler
- wire
- filler pipe
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 65
- 239000002828 fuel tank Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 52
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims description 9
- 238000005219 brazing Methods 0.000 claims description 5
- 238000005476 soldering Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
본 발명은 연료탱크의 필러파이프 용접방법에 관한 것으로, 납(Pb)가 사용안 된 무연 수지피복강판 재질의 연료탱크를 사용하면서 어퍼판넬과 필러파이프의 용접시 기밀성과 제품 품질 및 생산성을 높임은 물론 오염물질로 인한 환경 규제문제를 해결할 수 있도록 함에 그 목적이 있다.The present invention relates to a filler pipe welding method of a fuel tank, and improves airtightness, product quality, and productivity when welding an upper panel and a filler pipe while using a fuel tank made of a lead-free resin-coated steel sheet without lead (Pb). Of course, the aim is to solve environmental regulations caused by pollutants.
상기와 같은 목적을 달성하기 위한 본 발명은, 필러 파이프(1)와의 용접 부위에서 용접 금속의 응고를 용이하게 할 수 있도록 연료탱크의 어퍼패널(2)에 융기단(2')을 약 10~20㎜ 길이로 형성하고, 이어 상기 용접부위사이로 쉽게 위치될 수 있도록 그 끝부위를 이루면서 경사지게 절곡시킨 용접봉(5)의 토치(5a)로 부처 노출된 필러 와이어의 끝단을 상기 접합부위에 대고 전원선을 통해서 전류를 공급하며, 이어 상기 모재와 필러 와이어 사이에 공급된 전류에 의해 발생되는 아크열을 이용하여 필러 와이어를 상기 접합부위에 용융 접합하면서 약 2∼5rpm의 아크 납땜의 용접속도로 결합시키고, 이어 연료 누출과 같은 연료탱크의 용접불량을 없애기 위한 적절한 용접와이어를 사용해 크레이터(crater)처리하거나 1~5°오버랩(overlap)작업을 실시하는 것을 특징으로 한다.The present invention for achieving the above object is about 10 ~ to the ridge end (2 ') to the upper panel (2) of the fuel tank to facilitate the solidification of the weld metal at the welding site with the filler pipe (1). 20 mm long, and then the end of the filler wire exposed to the torch (5a) of the welding rod (5) bent obliquely to form the end portion so that it can be easily located between the welding site and the power line Supplying current through the arc, and then joining the filler wire at a welding speed of about 2 to 5 rpm using arc welding generated by the current supplied between the base material and the filler wire while melting and bonding the filler wire to the joint portion. It is characterized by cratering or 1 ~ 5 ° overlapping work using appropriate welding wire to eliminate the welding defect of fuel tank such as fuel leakage. The.
Description
본 발명은 연료탱크의 필러파이프 용접방법에 관한 것으로, 보다 상세하게는 제품의 품질과 생산성을 향상시킴과 더불어 기밀성 품질을 확보할 수 있도록 된 연료탱크의 필러파이프 용접방법에 관한 것이다.The present invention relates to a method of welding a filler pipe of a fuel tank, and more particularly, to a method of welding a filler pipe of a fuel tank to improve the quality and productivity of the product and to ensure the airtight quality.
일반적으로 차량의 연료계통은 연료의 주입을 위해 연료탱크의 주입구에는 연료 필러캡이 닫혀져 있으며, 연료 주입구에서 연료를 운송하는 연료공급 튜브 및 이것을 연료탱크에 연결시키기 위하여 연료탱크 외부에 필러 파이프가 용접되어있고 고무 호스 및 밴드를 이용 체결하게 되어있다.In general, the fuel system of the vehicle has a fuel filler cap closed at the inlet of the fuel tank for fuel injection, and a filler pipe is welded to the outside of the fuel tank to connect the fuel supply tube to transport the fuel at the fuel inlet and the fuel tank. It is designed to be fastened using rubber hoses and bands.
이때, 상기 필러파이프(1)와 연료탱크의 어퍼패널(2)간의 결합부위는 용접시 용접 결함에 의한 연료누유 및 증발가스 누출이 있어서는 안 되는 보안부위로서, 상기 필러파이프(1)와 어퍼패널(2)은 도 1에 도시된 바와 같이 필러 파이프(1)의 외주면에 갭(G)을 두고 어퍼패널(2)이 위치되면서 그 하부부위로 상기 갭(G)을 메 꾸도록 지지브라켓트(3)이 덧대어지게 된다.At this time, the coupling part between the filler pipe 1 and the upper panel 2 of the fuel tank is a security part which should not have fuel leakage and evaporation gas leakage due to welding defect during welding, and the filler pipe 1 and the upper panel are not secured. (2) is a support bracket (3) to fill the gap (G) to the lower portion of the upper panel (2) is located with the gap (G) on the outer peripheral surface of the filler pipe (1) as shown in FIG. ) Is padded.
이에 따라, 상기 필러파이프(1)와 어퍼패널(2)사이에 형성된 갭(G)부위로 용접봉(5)의 토치(5a)부위를 위치시키면서 상기 갭(G)부위에 용융되는 와이어(5')를 이용해 용접하는 브레이징(brazing) 즉, 상기 필러파이프(1)와 어퍼패널(2)이 만나는 코너의 접합 부위에는 토치에 의한 구리(Cu)합금 납땜 용접을 실시하는 한편, 상기 연료탱크는 납-주석 도금강판 재질을 사용하기 때문에 필러파이프(1)와 연료탱크의 어퍼패널(2)간에 기밀을 유지하기 위하여 납(Pb)합금으로 된 땜납(soldering)에 의해서 접합시키은 물론이다.Accordingly, the wire 5 'which is melted in the gap G portion while placing the torch 5a portion of the electrode 5 in the gap G portion formed between the filler pipe 1 and the upper panel 2. Brazing, which is welded using the copper alloy, that is, a copper alloy (Cu) soldered soldered by a torch at the joint portion of the corner where the filler pipe 1 and the upper panel 2 meet, while the fuel tank is soldered. -Since tin plated steel is used, it is, of course, joined by soldering of lead (Pb) alloy to maintain airtightness between the filler pipe (1) and the upper panel (2) of the fuel tank.
이때, 땜납시의 가열온도는 약 500℃ 정도이고, 토치에 의한 납땜 용접시에는 약 1000℃정도 상승되어짐은 물론이다.At this time, the heating temperature at the time of soldering is about 500 degreeC, and of course, about 1000 degreeC is raised at the time of soldering welding by a torch.
그러나, 이와 같이 납-주석 합금 도금강판을 사용한 연료탱크는 향후 중금속 환경규제로 인하여 사용이 불가능하고 또한 이러한 연료탱크의 용접시 납(Pb)합금에 의한 땜납 역시 사용이 불가능하게 되는 문제가 있고 또한, 구리(Cu)합금 납땜 용접시에 용접봉(5)의 토치(5a)에 의해 필러 와이어(5')가 용융되는 과정에서 필러파이프(1)와 어퍼패널(2)과 같은 모재의 심한 열손상 및 도금층의 파손으로 인해 조기에 녹이 발생되어 수명이 단축되는 문제가 있다.However, such a fuel tank using a lead-tin alloy plated steel sheet cannot be used due to heavy metal environmental regulations in the future, and solder by lead (Pb) alloy cannot be used when welding such a fuel tank. Severe thermal damage of the base material such as the filler pipe 1 and the upper panel 2 during the melting of the filler wire 5 'by the torch 5a of the electrode 5 during the copper (Cu) solder brazing welding. And rust is generated early due to the damage of the plating layer has a problem that the life is shortened.
또한, 이와 같이 토치를 장시간 사용해 가열하게 되면 가열범위가 넓어지면서 가열로 인해 패널이 변형될 우려가 있음은 물론 낮은 용접속도로 인해 생산성이 낮게 되는 단점이 있다.In addition, when the torch is heated for a long time as described above, the heating range is widened, and the panel may be deformed due to the heating, and the productivity is low due to the low welding speed.
이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 납(Pb)가 사용안 된 무연 수지피복강판 재질의 연료탱크를 사용하면서 어퍼판넬과 필러파이프의 용접시 기밀성과 제품 품질 및 생산성을 높임은 물론 오염물질로 인한 환경 규제문제를 해결할 수 있도록 함에 그 목적이 있다.Therefore, the present invention was invented in view of the above points, while using a fuel tank made of lead-free resin-coated steel sheet without lead (Pb), it improved airtightness and product quality and productivity when welding the upper panel and the filler pipe. In addition, the aim is to solve environmental regulations caused by pollutants.
상기와 같은 목적을 달성하기 위한 본 발명은, 필러 파이프와의 용접 부위에서 용접 금속의 응고를 용이하게 할 수 있도록 연료탱크의 어퍼패널에 융기단을 약 10~20㎜ 길이로 형성하고, 이어 상기 용접부위사이로 쉽게 위치될 수 있도록 그 끝부위를 이루면서 경사지게 절곡시킨 용접봉의 토치로 부처 노출된 필러 와이어의 끝단을 상기 접합부위에 대고 전원선을 통해서 전류를 공급하며, 이어 상기 모재와 필러 와이어 사이에 공급된 전류에 의해 발생되는 아크열을 이용하여 필러 와이어를 상기 접합부위에 용융 접합하면서 약 2∼5rpm의 아크 납땜의 용접속도로 결합시키고, 이어 연료 누출과 같은 연료탱크의 용접불량을 없애기 위한 적절한 용접와이어를 사용해 크레이터(crater)처리하거나 1~5°오버랩(overlap)작업을 실시하는 것을 특징으로 한다.The present invention for achieving the above object, to form a ridge end of about 10 to 20mm in the upper panel of the fuel tank to facilitate the solidification of the weld metal at the welded portion with the filler pipe, and then The current is supplied between the base material and the filler wire by applying a current through the power supply line to the junction of the end of the filler wire exposed by the torch of the electrode which is bent at an angle to form an end thereof so that it can be easily positioned between the welding parts. Using the arc heat generated by the electric current, the filler wire is melt-bonded to the joint portion at a welding speed of about 2 to 5 rpm arc soldering, and then suitable welding wire is removed to eliminate the welding defect of the fuel tank such as fuel leakage. Crater processing, or 1-5 ° overlapping.
도 1은 종래에 따른 연료탱크의 접합부위에 대한 용접 상태도1 is a welding state of the junction of the fuel tank according to the prior art
도 2는 본 발명에 따른 연료탱크의 접합부위에 대한 용접 상태도Figure 2 is a welding state of the joint portion of the fuel tank according to the present invention
도 3은 본 발명에 따른 용접 방법 순서도3 is a flow chart of the welding method according to the present invention.
도 4는 본 발명에 따른 용접 방법에 대한 실시예를 도시한 표4 is a table showing an embodiment of a welding method according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
1 : 필러파이프 2 : 어퍼패널1: Filler pipe 2: Upper panel
2' : 융기단2 ': ridge
3 : 지지브라켓트 5 : 용접봉3: support bracket 5: welding rod
5a : 토치 5' : 와이어5a: torch 5 ': wire
a : 위치각 G : 갭a: position angle G: gap
L : 여유간격L: clearance
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 따른 연료탱크의 접합부위에 대한 용접 상태도를 도시한 것인바, 본 발명은 필러 파이프(1)의 외주면에 갭(G)을 두고 위치되는 연료탱크의 어퍼패널(2)이 위치되되, 이 어퍼패널(2)에는 상기 파이프(1)로부터 소정의 여유간격(L)을 두고 위쪽으로 돌출되는 융기단(2')이 형성되어 용접 접합부위에 용융되는 필러 와이어의 흘러 넘침을 방지하게 된다.Figure 2 shows a welding state diagram for the joint portion of the fuel tank according to the present invention, the present invention is located in the upper panel 2 of the fuel tank is located with a gap (G) on the outer peripheral surface of the filler pipe (1) The upper panel 2 is provided with a ridge end 2 'protruding upward from the pipe 1 at a predetermined clearance gap L to prevent overflow of the filler wire melted at the weld joint. do.
여기서, 상기 어퍼패널(2)의 융기단(2')을 약 10~20㎜ 길이로 가공해 필러 와이어 용융 금속의 퍼짐성을 방지하고 어퍼패널(2)과 계면의 공간을 일정하게 유지하여 기지금속과의 밀착 및 용융이 일정하게 유지되도록 하는 기능이 있음은 물론이다.Here, the ridge end 2 'of the upper panel 2 is processed to a length of about 10 to 20 mm to prevent spreading of the filler wire molten metal, and the space between the upper panel 2 and the interface is kept constant so that the base metal is maintained. Of course, there is a function to keep the adhesion and melting with the constant.
또한, 상기 연료탱크의 어퍼패널(2)과 필러파이프(1)의 접합부위를 용접하는용접봉(5)은 그 끝단이 소정각도(a)로 절곡되면서 타 부위에 비해 상대적으로 작은 직경을 이루는 토치(5a)가 형성되는 한편, 상기 용접봉(5)내에는 용융되어 접합되는 필러 와이어와 접촉시 전류를 통전시키는 전류선 및 쉴드가스선이 구비되어 진다.In addition, the welding rod (5) for welding the joint portion of the upper panel (2) and the filler pipe (1) of the fuel tank has a torch having a relatively small diameter compared to the other parts while the end is bent at a predetermined angle (a) While 5a is formed, the electrode 5 is provided with a current line and a shield gas line for conducting a current upon contact with the filler wire to be melted and joined.
여기서, 상기 용접봉(5)의 토치(5a)는 필러 파이프(1)와 어퍼패널(2)사이에서 45˚ 경사를 갖도록 절곡되는 것이 바람직하지만, 용접부위의 좁은 간격으로 인하여 최대 30˚ 각도를 갖도록 절곡되어진다.Here, the torch 5a of the welding rod 5 is preferably bent to have an inclination of 45 ° between the filler pipe 1 and the upper panel 2, but has a maximum angle of 30 ° due to the narrow spacing of the welding portion. Bend.
또한, 상기 용접봉(5)의 필러 와이어는 직경 0.8㎜의 3~10% 알루미늄(Al)과 0.5~2% 철(Fe)이 함유된 구리(Cu)와이어이고, 전류선을 통해 공급되는 용접전류는 40∼80암페어(A)이며, 용접전압은 12∼18볼트(V)이고 또한, 쉴드가스라인을 통해 공급되는 아르곤 가스의 압력은 12∼18kgf/㎠이며 그 길이는 7∼13㎜정도임은 물론이다.In addition, the filler wire of the welding rod 5 is copper (Cu) wire containing 3-10% aluminum (Al) and 0.5-2% iron (Fe) having a diameter of 0.8 mm, and a welding current supplied through a current line. Is 40 to 80 amperes (A), welding voltage is 12 to 18 volts (V), and the pressure of argon gas supplied through the shield gas line is 12 to 18 kgf / cm 2 and the length is about 7 to 13 mm. Of course.
이하 본 발명의 용접 방법을 첨부된 도면을 참조로 상세히 설명한다.Hereinafter, the welding method of the present invention will be described in detail with reference to the accompanying drawings.
본 발명은 도 3에 도시된 바와 같이 연료탱크의 어퍼패널(2)에 융기단(2')을 약 10~20㎜ 길이로 형성해 필러 파이프(1)와의 용접 부위에서 용접 금속의 응고를 용이하게 할 수 있도록 준비하게 된다.As shown in FIG. 3, the ridge end 2 ′ is formed in the upper panel 2 of the fuel tank to have a length of about 10 to 20 mm to facilitate solidification of the weld metal at the welding site with the filler pipe 1. You will be ready to do it.
이어, 그 끝부위를 이루면서 경사지게 절곡된 토치(5a)를 형성한 용접봉(5)을 상기 어퍼패널(2)과 필러 파이프(1)사이에 형성되는 좁은 용접부위로 위치시키고 이어, 상기 용접봉(5)의 토치(5a)로 노출된 필러 와이어의 끝단을 상기 접합부위에 대고 전원선을 통해서 용접 모재(필러파이프 또는 어퍼패널)와 필러 와이어 사이에 전류를 공급하게 된다.Subsequently, the welding rod 5 having the torch 5a bent obliquely while forming the end portion thereof is positioned at a narrow welding portion formed between the upper panel 2 and the filler pipe 1, and then the welding rod 5 The end of the filler wire exposed by the torch 5a of the electrode is applied to the joint portion and a current is supplied between the welding base material (pillar pipe or upper panel) and the filler wire through a power line.
이어, 상기 모재와 필러 와이어 사이에 공급된 전류에 의해 발생되는 아크열을 이용하여 필러 와이어를 상기 접합부위에 용융 접합하면서 상기 어퍼패널(2)과 필러 와이어를 2∼5rpm의 아크 납땜의 용접속도로 결합시키게 된다.Subsequently, using the arc heat generated by the current supplied between the base material and the filler wire, the filler wire is melt-bonded to the joint portion, and the upper panel 2 and the filler wire are welded at an arc brazing speed of 2 to 5 rpm. Will be combined.
이어, 연료 누출과 같은 연료탱크의 용접불량을 없애기 위한 적절한 용접와이어를 사용해 크레이터(crater)처리하거나 1~5°오버랩(overlap)작업을 실시하게 된다.Then, cratering or 1 to 5 ° overlapping work is performed using suitable welding wires to eliminate welding defects in fuel tanks such as fuel leaks.
여기서, 상기 오버랩 작업은 최초 0˚에서 2~5˚까지 용접전류를 단계적으로 낮추어 과열에 의한 용접결함을 방지하게 됨은 물론이다.Here, of course, the overlap operation lowers the welding current from 0 ° to 2-5 ° stepwise to prevent welding defects due to overheating.
이와 같은 본 발명은 필러와이어(Filler Wire)의 종류와 용접전류, 전압, 토치 각도, 용접시 Overlap 여부과 그 각도 그리고 연료탱크의 어퍼패널 형상등을 고려함과 더불어 실제 연료탱크 재료로 사용중인 무연 수지도금강판에 융기단(2')을 형성하고 필러파이프(1)도 연료탱크에 사용중인 주석 도금한 재료를 사용하여 도 4와 같이 각각 그 값을 변화시키면서 실험하였는데 이에 따라, 전류가 약 60-70A이며 전압이 15-16V, 오버랩 각도는 3-5°, 용접와이어는 4-10% Al과 0.3- 1.5%Fe로 이루어진 구리(Cu)를 사용하고 또한, 용접부위에 돌출된 융기단(2')을 형성하면서 토치(5a)각도를 30-45°로 주면서 용접속도를 약 4rpm으로 하는 조건에서 가장 양호하게 용접됨을 알 수 있게 된다.The present invention considers the type of filler wire, welding current, voltage, torch angle, overlapping and angle of welding, upper panel shape of fuel tank, and lead-free resin coating material that is actually used as a fuel tank material. The ridge end 2 'was formed on the steel plate and the filler pipe 1 was also tested using the tin-plated material used in the fuel tank, changing the values as shown in FIG. 4, whereby the current was about 60-70A. And the voltage is 15-16V, the overlap angle is 3-5 ° and the welding wire uses copper (Cu) made of 4-10% Al and 0.3-1.5% Fe. It can be seen that the welding is best performed under the condition that the welding speed is about 4 rpm while giving the angle of the torch 5a to 30-45 ° while forming the shape.
이상 설명한 바와 같이 본 발명에 의하면, 무연 수지피복강판재질인 어퍼패널과 필러 파이프를 결합하는 용접부위에 필러 파이프와 만나는 어퍼패널에 10~20mm 정도로 돌출되도록 굽힘 가공하면서 용접봉의 토치도 소정각도로 절곡시켜 용접을 해 중금속 환경규제에 만족하면서도 아크 납땜(arc brazing)기술을 적용하여 기밀을 요하는 연료탱크의 접합 부위에 대한 용접품질을 향상시키고 생산성을 높일 수 있는 효과가 있게 된다.As described above, according to the present invention, the torch of the welding rod is also bent at a predetermined angle while bending to protrude about 10 to 20 mm on the upper panel where the lead pipe meets the filler pipe at the welded portion where the lead panel and the filler pipe are joined together. While welding, it satisfies the heavy metal environmental regulations, but by applying arc brazing technology, it is possible to improve the welding quality and increase the productivity of the welded joint of the fuel tank that requires airtightness.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0030353A KR100452204B1 (en) | 2002-05-30 | 2002-05-30 | Welding method pillar pipe with fuel tank panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0030353A KR100452204B1 (en) | 2002-05-30 | 2002-05-30 | Welding method pillar pipe with fuel tank panel |
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| Publication Number | Publication Date |
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| KR20030092630A KR20030092630A (en) | 2003-12-06 |
| KR100452204B1 true KR100452204B1 (en) | 2004-10-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281005A (en) * | 1990-03-27 | 1991-12-11 | Usui Internatl Ind Co Ltd | Fuel delivery pipe and its working method |
| JPH03297568A (en) * | 1990-04-17 | 1991-12-27 | Nippon Steel Corp | Welding torch with curved tip |
| KR960004478U (en) * | 1994-07-06 | 1996-02-14 | Fuel tank pipe reinforcement structure of automobile | |
| JPH11348582A (en) * | 1998-06-12 | 1999-12-21 | Fuji Heavy Ind Ltd | Filler pipe mounting structure for fuel tank |
| KR20020055622A (en) * | 2000-12-29 | 2002-07-10 | 이계안 | Method for arc brazing of a fuel tank |
-
2002
- 2002-05-30 KR KR10-2002-0030353A patent/KR100452204B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281005A (en) * | 1990-03-27 | 1991-12-11 | Usui Internatl Ind Co Ltd | Fuel delivery pipe and its working method |
| JPH03297568A (en) * | 1990-04-17 | 1991-12-27 | Nippon Steel Corp | Welding torch with curved tip |
| KR960004478U (en) * | 1994-07-06 | 1996-02-14 | Fuel tank pipe reinforcement structure of automobile | |
| JPH11348582A (en) * | 1998-06-12 | 1999-12-21 | Fuji Heavy Ind Ltd | Filler pipe mounting structure for fuel tank |
| KR20020055622A (en) * | 2000-12-29 | 2002-07-10 | 이계안 | Method for arc brazing of a fuel tank |
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| KR20030092630A (en) | 2003-12-06 |
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