WO2019066271A1 - 용접토치용 디퓨저 - Google Patents
용접토치용 디퓨저 Download PDFInfo
- Publication number
- WO2019066271A1 WO2019066271A1 PCT/KR2018/009973 KR2018009973W WO2019066271A1 WO 2019066271 A1 WO2019066271 A1 WO 2019066271A1 KR 2018009973 W KR2018009973 W KR 2018009973W WO 2019066271 A1 WO2019066271 A1 WO 2019066271A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- welding
- gas
- diffuser
- rear end
- welding torch
- Prior art date
Links
Images
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
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/29—Supporting devices adapted for making use of shielding means
- B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
- B23K9/295—Supporting devices adapted for making use of shielding means the shielding means being a gas using consumable electrode-wire
Definitions
- the present invention relates to a component constituting a welding torch, and more particularly, to a welding torch diffuser in which a welding wire is supplied through a central portion and an inert gas such as carbon dioxide is spouted outward.
- Welding refers to the simultaneous application of heat, pressure, or heat and pressure to metallic materials, and it is an important part of various industrial fields such as the shipbuilding industry and various machinery manufacturing.
- welding is performed by supplying a consumable welding wire at a constant speed while applying a predetermined current to generate an arc between the welding wire and the base material.
- CO2 welding or MIG welding is characterized in that it can reduce welding defects by allowing welding to be performed in a state where the periphery of the welding part is shielded from the outside by using an inert gas.
- the molten metal does not come into contact with the atmosphere by welding while ejecting an inert gas such as carbon dioxide, so that oxidation and nitriding can be prevented, and welding to aluminum, copper, stainless steel and the like is possible in addition to iron.
- an inert gas such as carbon dioxide
- Carbon dioxide welding which has the advantage of improving the quality of welding, consumes a large amount of carbon dioxide, which is adversely affected by environmental considerations such as global warming.
- a diffuser 34 is assembled into a cylindrical nozzle 30, a tip 32 is fitted to the front of the diffuser, and a gas pipe 24 is connected to the rear of the diffuser 34 do.
- the welding rod inserted through the gas pipe 24 is moved to the inside of the tip 32 to generate an arc between the base materials, and the carbon dioxide moves to the nozzle and is sprayed while surrounding the welding portion.
- a plurality of holes are formed along the outer surface of the diffuser to which the tip 32 is connected.
- the carbon dioxide is discharged through the holes and moved to the end of the nozzle to form a shield surrounding the welding portion.
- holes are formed so as to be jetted at a right angle toward the inner diameter surface of the nozzle, so that excessive turbulence is formed inside the nozzle, and thus a shield of a constant pattern can not be formed when the nozzle is jetted to the nozzle end .
- a diffuser for a welding torch capable of uniformly forming a shield of carbon dioxide ejected through a nozzle, and capable of welding even when wind blows due to injection at a high pressure.
- the welding torch diffuser according to the present invention for achieving the above-described object is a diffuser of a welding torch using an inert gas, wherein a handle connection portion is formed at a rear end of the body, a welding tip connection portion is formed at a front end of the body, A plurality of gas outlets are formed in a circle on an outer surface of the welding tip connecting portion, and the gas outlets are formed at an oblique inclination angle toward the front.
- a gas introduction chamber is formed from the rear end of the welding tip connection portion, and a gas diffusion derivative is mounted at the center of the gas introduction chamber.
- an opening hole is formed at the center of the bottom surface of the gas introduction chamber to the front end of the welding tip connection portion, a first female screw for coupling the gas diffusion derivative is formed at the rear end of the opening hole, And a second female screw for connecting the welding tip is formed.
- the gas diffusion derivative is formed of a diameter enlarged portion having an outer diameter increased from the rear end and a shaft portion decreasing in outer diameter toward the front end in succession from the rear end.
- a welding wire guide made of a ceramic material is inserted from the rear end of the gas diffusion derivative.
- the diffuser for a welding torch according to the present invention has an effect of improving the welding characteristic by allowing carbon dioxide to be injected toward the nozzle end so as to form a shield of a constant pattern without a pressure drop during injection.
- a gas introduction chamber is provided therein to enable uniform injection while forming a high pressure, thereby preventing the shield from being easily broken.
- the present invention injects carbon dioxide while forming a high pressure, there is an effect that the consumption of carbon dioxide can be greatly reduced.
- the present invention allows welding to be performed more smoothly by forming a stable shield, there is also an effect that a large amount of welding work is not performed even for a non-expert.
- FIG. 1 is a schematic view showing the structure of a diffuser in a conventional welding torch
- FIG. 2 shows an example of the use of a diffuser for a welding torch according to a preferred embodiment of the present invention.
- FIG 3 is a perspective view of a diffuser for a welding torch according to the present invention.
- FIG. 4 is a configuration diagram of a diffuser for a welding torch
- FIG. 5 is a perspective view of a gas diffusion derivative.
- FIG. 6 is a cross-sectional view of a gas diffusion derivative.
- FIG. 7 is an exploded view of Fig.
- FIG. 3 is a perspective view of a diffuser for a welding torch according to the present invention
- Fig. 4 is a configuration diagram of a diffuser for a welding torch
- Fig. 5 is a view showing the configuration of the welding torch diffuser according to a preferred embodiment of the present invention
- Fig. 6 is a cross-sectional view of the gas diffusion derivative
- Fig. 7 is an exploded view of Fig. 6.
- the welding torch diffuser 100 is suitable for use as a welding torch using an inert gas such as a carbon dioxide welding torch.
- the main component is a body 110, A connection portion 120 is formed and a welding tip connection portion 130 is formed at a front end of the body 110.
- a plurality of gas outlets 140 are formed on the outer surface of the welding tip connecting portion 130 as a tile circle, and the gas outlets 140 are formed at an oblique inclination angle toward the front.
- a handle connecting portion 120 protruding from a rear end of the body 110 is formed and the handle connecting portion 120 may be formed of a male or a female.
- a welding tip connection part 130 is formed at a front end of the body 110.
- the welding tip connection part 130 may be formed of a female screw.
- a plurality of gas outlets 140 are arranged in a circle along an outer surface of the welding tip connecting portion 130 while forming a predetermined separation distance, and the gas outlets 140 And is formed to be inclined at an oblique angle toward the front.
- a nozzle connecting thread 111 for connecting the nozzle is formed on the outer surface of the body 110.
- a part of the welding tip connection part 130 is exposed to the front of the body 110 and another part of the welding tip connection part 130 extends into the body 110 to be engaged with the body 110.
- a gas introduction chamber 131 is formed at the rear end part of the welding tip connection part 130.
- a gas diffusion conductor 150 is mounted in the center of the gas introduction chamber 131.
- the gas introduction chamber 131 is surrounded by the body 110.
- An opening hole 132 is formed in the bottom surface of the gas introduction chamber 131 to extend to the front end of the welding tip connection part 130, And a second female screw 133 for connecting the gas diffusion member 150 is formed at the rear end of the opening hole 132.
- a second female screw 134 for connecting the welding tip is formed at the front end of the opening hole 132.
- the gas introducing chamber 131 has an empty space in which the gas diffusion electrode 150 can be embedded.
- the gas diffusion electrode 150 has a through hole 151 penetrating the center of the gas diffusion electrode 150 as shown in FIG. 6 or 7, And has an outer diameter formed by a diameter enlarged portion 150a whose outer diameter is increased from the rear end and an axial diameter portion 150b whose outer diameter is decreased toward the front end successively to the enlarged diameter portion 150a.
- a welding wire guide 160 made of a ceramic material is inserted from the rear end of the gas diffusion conductor 150.
- the gas diffusion conductor 150 has a diameter enlarged portion 150a whose overall outer diameter gradually increases from the rear end toward the front end, and an axial pipe portion 150a whose outer diameter decreases toward the front end from the end of the diameter-
- the end of the shaft portion 150b is formed with a first male screw 152 which can be fastened to the first female screw 133 formed at the rear end of the opening hole 132.
- the through hole 151 of the enlarged diameter portion 150a is formed to extend from the through hole 151 of the axial pipe portion 150b to the front end So that the welding wire guide 160 is inserted.
- the welding wire guide 160 is inserted into the through hole 151 of the enlarged diameter portion 150a, and then the fixing bolt 170 is fastened in order to fix the welding wire guide 160.
- the fixing bolt (170) is opened to communicate with the through hole (151) so that the welding wire can pass therethrough.
- the welding wire guide 160 formed of a ceramic material is provided in the gas diffusion conductor 150, it is possible to prevent the moving characteristic of the welding wire from being deteriorated due to the high temperature transferred during welding.
- the gas diffusion guide 150 is installed in the body 110, the welding wire guide 160 of ceramic material is embedded in the gas diffusion guide 150, So that the moving characteristic of the welding wire can be maintained even at a high temperature.
- the gas diffusion member 150 mounted in the gas introduction chamber 131 functions to uniformly distribute carbon dioxide to the plurality of gas spouts 140 and to inject the gas at a high pressure.
- the gas injection port 140 is formed along the bottom edge of the gas introduction chamber 131 and is formed with an inclination angle toward the front and is formed along the outer surface of the welding tip connection part 130.
- the boundary portion between the enlarged diameter portion 150a of the gas diffusion member 150 and the axial pipe portion 150b is disposed adjacent to the inlet of the gas outlet 140.
- the supplied carbon dioxide flows along the outer surface of the diameter portion 150a,
- the distance between the inner circumferential surface of the introduction chamber 131 and the inner circumferential surface of the introduction chamber 131 is gradually narrowed and the distance between the inner circumferential surface and the outer circumferential surface of the axial tube portion 150b is increased.
- the rear end portion of the body 110 of the welding torch diffuser 100 in which the handle connecting portion 120 is formed is injected and molded with a curable resin having excellent insulating property so that the assembly and safety can be enhanced.
- the nozzle N is connected to the body 110 of the diffuser 100 and the welding tip connecting portion 130 is welded while the welding tip T is engaged.
- carbon dioxide is injected while moving along the inner diameter of the nozzle N to form a shield in front of the nozzle N, and the carbon dioxide is injected into the nozzle N at the time of welding It acts to cool the high-temperature heat transferred.
- the temperature of the nozzle N is increased toward the end of the nozzle N. Since the gas ejection opening 140 is formed so as to be directly sprayed forward, the effect of cooling the high temperature is high.
- the amount of used carbon dioxide can be reduced, thereby being eco-friendly.
- the shield for covering the welding portion is more stable than the conventional diffuser, the influence of the wind is reduced, thereby improving the welding quality and reducing the welding defect.
- the diffuser for a welding torch according to the present invention is suitable for use as a welding torch using an inert gas such as carbon dioxide.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
Claims (4)
- 불활성 가스를 이용하는 용접토치의 디퓨저에 있어서,몸체의 후단에 손잡이 연결부가 형성되며, 상기 몸체의 전단에는 용접팁 연결부가 형성되고 상기 용접팁 연결부의 외면에 원을 이루면서 복수의 가스분출구가 형성되되, 상기 가스분출구는 전방을 향해 비스듬한 경사각을 이루면서 형성되고,상기 용접팁 연결부의 후단으로부터 가스도입챔버가 형성되며, 상기 가스도입챔버의 중심에 가스확산유도체가 장착되는 것을 특징으로 하는 용접토치용 디퓨저.
- 제 1 항에 있어서,상기 가스도입챔버의 바닥면 중심에는 상기 용접팁 연결부의 전단까지 이어지는 개구홀이 형성되며, 상기 개구홀의 후단에 상기 가스확산유도체의 결합을 위한 제1암나사가 형성되고, 상기 개구홀의 전단에 용접팁 연결을 위한 제2암나사가 형성되는 것을 특징으로 하는 용접토치용 디퓨저.
- 제 2 항에 있어서,상기 가스확산유도체는,중심부를 따라 관통되는 관통구가 형성되며, 후단으로부터 외경이 증가되는 확경부와 상기 확경부에 연이어 전단을 향해 외경이 감소되는 축관부로 이루어지는 것을 특징으로 하는 용접토치용 디퓨저.
- 제 3 항에 있어서,상기 가스확산유도체의 후단으로부터 세라믹 소재로 이루어지는 용접 와이어 가이드가 삽입 설치되는 것을 특징으로 하는 용접토치용 디퓨저.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2017-0127269 | 2017-09-29 | ||
KR1020170127269A KR101837372B1 (ko) | 2017-09-29 | 2017-09-29 | 용접토치용 디퓨저 |
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WO2019066271A1 true WO2019066271A1 (ko) | 2019-04-04 |
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ID=61729021
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2018/009973 WO2019066271A1 (ko) | 2017-09-29 | 2018-08-29 | 용접토치용 디퓨저 |
Country Status (2)
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KR (1) | KR101837372B1 (ko) |
WO (1) | WO2019066271A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102259499B1 (ko) * | 2019-06-27 | 2021-07-05 | (주)이엘웰콘 | 용접토치용 분사콘 |
KR102162603B1 (ko) * | 2019-07-24 | 2020-10-07 | 주식회사 브랜드뉴 | 휴대용 용접기 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6307179B1 (en) * | 1999-10-15 | 2001-10-23 | American Torch Tip Company | Wire welding gun having improved connection between a contact tip and its mating part |
KR101304914B1 (ko) * | 2010-11-26 | 2013-09-05 | 삼성중공업 주식회사 | 용접 토치의 가스 디퓨저 |
KR101341872B1 (ko) * | 2013-05-03 | 2013-12-17 | 양춘자 | 방열면적이 극대화된 디퓨져를 갖는 가스용접 토오치 |
KR20140003452U (ko) * | 2012-11-30 | 2014-06-10 | 현대중공업 주식회사 | 이산화탄소 용접장치 |
KR20170051995A (ko) * | 2015-11-03 | 2017-05-12 | 손동주 | 용접 토치용 가스디퓨저 |
-
2017
- 2017-09-29 KR KR1020170127269A patent/KR101837372B1/ko active IP Right Grant
-
2018
- 2018-08-29 WO PCT/KR2018/009973 patent/WO2019066271A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6307179B1 (en) * | 1999-10-15 | 2001-10-23 | American Torch Tip Company | Wire welding gun having improved connection between a contact tip and its mating part |
KR101304914B1 (ko) * | 2010-11-26 | 2013-09-05 | 삼성중공업 주식회사 | 용접 토치의 가스 디퓨저 |
KR20140003452U (ko) * | 2012-11-30 | 2014-06-10 | 현대중공업 주식회사 | 이산화탄소 용접장치 |
KR101341872B1 (ko) * | 2013-05-03 | 2013-12-17 | 양춘자 | 방열면적이 극대화된 디퓨져를 갖는 가스용접 토오치 |
KR20170051995A (ko) * | 2015-11-03 | 2017-05-12 | 손동주 | 용접 토치용 가스디퓨저 |
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KR101837372B1 (ko) | 2018-03-12 |
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