WO2004048025A1 - Chalumeau refroidi par air utilisant la force magnetique - Google Patents

Chalumeau refroidi par air utilisant la force magnetique Download PDF

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Publication number
WO2004048025A1
WO2004048025A1 PCT/KR2003/002537 KR0302537W WO2004048025A1 WO 2004048025 A1 WO2004048025 A1 WO 2004048025A1 KR 0302537 W KR0302537 W KR 0302537W WO 2004048025 A1 WO2004048025 A1 WO 2004048025A1
Authority
WO
WIPO (PCT)
Prior art keywords
torch
cooling type
magnetic
magnetic force
air
Prior art date
Application number
PCT/KR2003/002537
Other languages
English (en)
Inventor
Woongki Kim
Original Assignee
Kr Precision Co.,Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kr Precision Co.,Ltd. filed Critical Kr Precision Co.,Ltd.
Priority to AU2003284749A priority Critical patent/AU2003284749A1/en
Publication of WO2004048025A1 publication Critical patent/WO2004048025A1/fr

Links

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
    • B23K9/08—Arrangements or circuits for magnetic control of the arc

Definitions

  • the present invention relates to an air-cooling type torch using magnetic force, more particularly, to an air-cooling type torch using magnetic force which is simple in structure and superior in welding precision.
  • an arc welding method is widely used, wherein arc is generated between an electrode rod of a torch and a welding base metal, so that welding portion is filled with the melted electrode rod.
  • a material of an electrode rod the same material as that of a welding base metal is used.
  • the defects such as void, expansion of oxidized film can be observed by testing the welded portion through X-ray inspection.
  • the expansion of oxidized film is a fatal factor which adversely affects welding quality. If the oxidized film is fully removed or dispersed, the strength of the welded structure is increased and hence thickness of excessive weld metal and the weight of the welded object are remarkably decreased.
  • Korean Patent No. 217855 discloses a water- cooling type magnetic torch.
  • the water-cooling type magnetic torch comprises a torch tip 150, a cupper tube 140 coupled to an outer periphery of a front end of the torch tip 150, magnetic coils 180 which are disposed at four positions, that is left, right, front and rear with 90 degree one another in the cupper tube 140, and a water-cooling tube 130 which is provided in the cupper tube 140 for cooling the magnetic coil 180.
  • the water- cooling tube 130 is built in the front end of the torch tip 150 so that magnetic property can be utilized in the magnetic stirring of arc and the melted metal and can be exhibited maximally.
  • the water-cooling type magnetic torch has problems that the magnetic coils are consisted of four pieces to complicate the manufacturing process, and the magnetic coils are disposed in the cupper tube 140 to increase the possibility of damage thereof due to the heat generated during welding. Further, because the water-cooling tube
  • an object of the present invention is to provide an air-cooling type torch using magnetic force which is simple in assembly structure and superior in welding precision by preventing the magnetic coils from damaging due to heat generated during welding.
  • an air-cooling type torch using magnetic force which comprises: a torch tip of which the inside is hollow so that an electrode rod is accommodated within the torch tip and gas for forming the welding atmosphere can be passed therethrough; an electromagnet unit which is mounted on an outer periphery of a front end of the torch tip; an insulation unit which is mounted on an upper outer periphery of the electromagnet unit and made of material for insulating heat and electricity, the insulation unit forming a bobbin structure; and a magnetic coil which is wound around inside of the insulation unit.
  • the magnetic coil has a structure that is wound inside of the insulation unit, whereby a manufacturing process is simplified compared to the conventional structure.
  • the magnetic coil is not positioned on the front end of the electromagnet unit but positioned inside of the insulation unit which is disposed on an upper outer periphery of the electromagnet unit, it is not necessary to install water-cooling pipes as needed in prior art so that structure of the magnetic torch becomes simple. Moreover, the magnetic coil is less subjected to heat so that magnetic property is superior and welding quality is better.
  • Fig. 1 is a plan view showing a water-cooling type torch using magnetic force according to a prior art
  • Fig. 2 shows a longitudinal sectional view of Fig. 1;
  • Fig. 3 is a longitudinal sectional view showing a structure of an air-cooling type torch using magnetic force according to an embodiment of the present invention.
  • FIG. 3 is a longitudinal sectional view showing a structure of an air-cooling type torch using magnetic force according to an embodiment of the present invention.
  • the air-cooling type torch using magnetic force comprises a torch tip 1000, an electromagnet unit 1200, an insulation unit 1100, and a magnetic coil 1300.
  • the torch tip 1000 has a constitution that the inside thereof is hollow and the radius of a front end 1000a is smaller than that of a body thereof.
  • An electrode rod 110 is accommodated within the inside of the torch tip, and inert gas such as CO 2 , argon, etc. which forms welding atmosphere passes trough the inside of the torch tip except for portion occupied by the electrode rod 110.
  • the electromagnet unit 1200 is seated on the outer periphery of the front end 1000a of the torch tip 1000, and the radius of the front end 1200a thereof is gradually narrowed toward the tip end.
  • the electromagnet unit 1200 is preferably made of pure iron in consideration of it superior magnetic property.
  • the insulation unit 1100 is installed on an upper outer periphery of the electromagnet unit 1200 and made of resin for insulating heat and electricity.
  • the insulation unit 1100 has a bobbin structure.
  • the magnetic coil 1300 is wound inside of the insulation unit 110 for generating a line of magnetic force to allow the electromagnet unit 1200 to bear magnetic property.
  • the torch tip 1000 and the electromagnet unit 1200 may be coupled with interference fit. Accordingly, it is possible to replace only the torch tip 100 by separating the worn torch tip 1000 from the electromagnet unit.
  • coupling method of the • torch tip and the electromagnet unit is not limited thereto. The operation of an air-cooling type torch using magnetic force according to an embodiment of the present invention constituted as described in the above will now be described.
  • the magnetic coil 1300 of the present invention has a structure that is wound inside of the insulation unit 1100, whereby a manufacturing process is simplified compared to the conventional structure.
  • the magnetic coil 1300 is positioned within the insulation unit 1100 disposed on the upper side of the electromagnet unit 1200 for insulating heat and electricity, it is not necessary to install water-cooling pipes so that structure of the magnetic torch becomes simple. Moreover, the magnetic coil 1300 is not subjected to heat of high temperature so that magnetic property is superior to that of the conventional magnetic torch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

La présente invention concerne un chalumeau refroidi par air utilisant la force magnétique, de structure simple et permettant une soudure plus précise. Ce chalumeau refroidi par air utilisant la force magnétique comprend un bec creux pouvant contenir une électrode et laisser passer un gaz servant à former le milieu de soudage. Ce chalumeau comprend également une unité électromagnétique montée sur un bord externe d'une extrémité avant du bec, une unité isolante montée sur un bord externe supérieur de l'unité électromagnétique, constituée d'un matériau isolant contre la chaleur et l'électricité, formant une structure de bobine, ainsi qu'un blindage magnétique enroulé à l'intérieur de l'unité isolante.
PCT/KR2003/002537 2002-11-22 2003-11-22 Chalumeau refroidi par air utilisant la force magnetique WO2004048025A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003284749A AU2003284749A1 (en) 2002-11-22 2003-11-22 Air-cooling type torch using magnetic force

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020020072927A KR20040044756A (ko) 2002-11-22 2002-11-22 자력을 이용한 공냉식 토치
KR10-2002-0072927 2002-11-22

Publications (1)

Publication Number Publication Date
WO2004048025A1 true WO2004048025A1 (fr) 2004-06-10

Family

ID=32388197

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2003/002537 WO2004048025A1 (fr) 2002-11-22 2003-11-22 Chalumeau refroidi par air utilisant la force magnetique

Country Status (3)

Country Link
KR (1) KR20040044756A (fr)
AU (1) AU2003284749A1 (fr)
WO (1) WO2004048025A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033744A1 (de) * 2005-07-15 2007-02-01 Felix Politt Handstück sowie Schweißdrahtzuführeinrichtung
CN105142323A (zh) * 2015-09-07 2015-12-09 徐州科融环境资源股份有限公司 一种气冷等离子电极

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302381A (zh) * 2012-03-14 2013-09-18 沈阳飞机工业（集团）有限公司 一种外加磁场的tig焊枪
JP6091974B2 (ja) * 2013-04-16 2017-03-08 株式会社神戸製鋼所 溶接物の製造方法、溶接方法、溶接装置
CN106289608B (zh) * 2016-08-02 2018-11-13 北京航空航天大学 一种测量焊接电弧轴向力的装置和方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162647A (en) * 1978-06-15 1979-12-24 Nippon Kokan Kk <Nkk> Magnetism-driving arc welding process
JPH07251270A (ja) * 1994-01-14 1995-10-03 Hbs Bolzenschweiss Syst Gmbh & Co Kg 環状のスタッドの溶接装置
KR970033369A (ko) * 1995-12-30 1997-07-22 김종진 전자기력을 이용한 아아크 용접방법 및 그 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117567A (en) * 1979-03-01 1980-09-09 Dengensha Mfg Co Ltd Structural body of electrode for magnetic rotating arc and electrode device
JPS62165074U (fr) * 1986-04-10 1987-10-20
JPH08138884A (ja) * 1994-11-09 1996-05-31 Mitsubishi Heavy Ind Ltd プラズマ溶接装置
JPH1024368A (ja) * 1996-07-09 1998-01-27 Ishikawajima Harima Heavy Ind Co Ltd 磁気攪拌溶接法およびその装置
JP2000263227A (ja) * 1999-03-11 2000-09-26 Ishikawajima Harima Heavy Ind Co Ltd 磁気撹拌溶接トーチ
KR20020050941A (ko) * 2000-12-22 2002-06-28 김형벽ㅂ 아크 용접에서의 아크 쏠림 방지 방법 및 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162647A (en) * 1978-06-15 1979-12-24 Nippon Kokan Kk <Nkk> Magnetism-driving arc welding process
JPH07251270A (ja) * 1994-01-14 1995-10-03 Hbs Bolzenschweiss Syst Gmbh & Co Kg 環状のスタッドの溶接装置
KR970033369A (ko) * 1995-12-30 1997-07-22 김종진 전자기력을 이용한 아아크 용접방법 및 그 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033744A1 (de) * 2005-07-15 2007-02-01 Felix Politt Handstück sowie Schweißdrahtzuführeinrichtung
CN105142323A (zh) * 2015-09-07 2015-12-09 徐州科融环境资源股份有限公司 一种气冷等离子电极

Also Published As

Publication number Publication date
AU2003284749A1 (en) 2004-06-18
KR20040044756A (ko) 2004-05-31

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