JPH0371980A - Machine and method of arc welding - Google Patents
Machine and method of arc weldingInfo
- Publication number
- JPH0371980A JPH0371980A JP20806989A JP20806989A JPH0371980A JP H0371980 A JPH0371980 A JP H0371980A JP 20806989 A JP20806989 A JP 20806989A JP 20806989 A JP20806989 A JP 20806989A JP H0371980 A JPH0371980 A JP H0371980A
- Authority
- JP
- Japan
- Prior art keywords
- mineral oil
- arc welding
- gas
- electrode
- supplied
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 9
- 239000002480 mineral oil Substances 0.000 claims abstract description 17
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 17
- 239000010953 base metal Substances 0.000 claims abstract description 7
- 238000010891 electric arc Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 230000003647 oxidation Effects 0.000 abstract description 9
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 230000001603 reducing effect Effects 0.000 abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 5
- 239000001257 hydrogen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 229910052786 argon Inorganic materials 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 206010008631 Cholera Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 125000006850 spacer group Chemical class 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）＠業、Ｊ：、の利用分野
本発明は、不活性ガスあるいは炭酸ガスを用いるアーク
溶接機及びアーク溶接方法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of use of the present invention relates to an arc welding machine and an arc welding method using an inert gas or carbon dioxide gas.
（ロ）従来の技術
従来、この種アーク溶接機において、アルゴンガスまた
はヘリウムガスのような不活性ガス、あるいは炭酸ガス
を主とする混合ガスを用いことが一般に使用さ托ている
が、母材表面の酸化抑制が大全には行われない欠点があ
った。(b) Conventional technology Conventionally, this type of arc welding machine generally uses an inert gas such as argon gas or helium gas, or a mixed gas mainly consisting of carbon dioxide gas, but There was a drawback that surface oxidation was not completely suppressed.
そこで、ガスに水素を混合して水素の還元作用により酸
化を防止する方法が（えらオしたが、水素力取扱いが大
変危険であった。Therefore, a method was proposed to prevent oxidation by mixing hydrogen with the gas and using hydrogen's reducing action, but handling hydrogen power was extremely dangerous.
（ハ）発明が解決しようとする課題
本発明は上記欠点に鑑みなさｔまたちので、アークｆ容
接における母材の酸化を防止できるアーク溶接機とアー
ク溶接方法を提供することを課題とする。(c) Problems to be Solved by the Invention In view of the above-mentioned drawbacks, it is an object of the present invention to provide an arc welding machine and an arc welding method that can prevent oxidation of the base material during arc welding. .
（ニ）課題を解決するための手段
本発明のアーク溶接機は、母材との間にアーク放電を発
生せしめる！極と、前記電極の周囲にガスを供給する供
給手段と、前記供給手段から供給されるガス中に、鉱物
油を添加する手段とを備えてなる。(d) Means for Solving the Problems The arc welding machine of the present invention generates arc discharge between it and the base metal! It comprises an electrode, a supply means for supplying gas around the electrode, and a means for adding mineral oil to the gas supplied from the supply means.
ゼ発明のアーク溶接方法は、母材との間にアーク放電を
発生せしめる電極の周囲に、鉱物油を添加したガスを供
給してなる。The arc welding method of the invention comprises supplying a mineral oil-added gas around an electrode that generates an arc discharge between the electrode and the base metal.
（ホ）作用
鉱物油は、ＣａＨ！ａ＋１の分子式全有しているから、
ガスと共に溶接部分に供給された鉱物油は溶接部分の熱
により炭素と水素に分解され、溶接部分円囲の酸素と結
び付いて二酸化炭素（Ｃｏ、）と水（、Ｈ，Ｏ）になり
、その還元作用により溶接部分の酸化を防止する。(E) Action Mineral oil is CaH! Since it has the entire molecular formula of a+1,
The mineral oil supplied to the welding area along with the gas is decomposed into carbon and hydrogen by the heat of the welding area, which combines with the oxygen surrounding the welding area to become carbon dioxide (Co, ) and water (,H,O). Prevents oxidation of welded parts by reducing action.
（へ〉 実施例
本発明の一実施例を第１図及び第２図に示すタングステ
ンイナートガスアーク溶接機に基づき以ドに詳述する。Embodiment An embodiment of the present invention will be described below in detail based on a tungsten inert gas arc welding machine shown in FIGS. 1 and 2.
１はトーチで、銅製のトーチボディー２とトーチボデｌ
−の外周に固定される絶縁性ゴム製のスＪ−ブ３とを有
している。前記トーチ１の後端には、３本の中空パイプ
部４．５．６が形成され、中学バイ１部４．５間をトー
チ後部の冷却水通路７で連通し、中空パイプ部４から冷
却水通路７を経て中空パイプ部５へ冷却水を流し、トー
チボディ２を冷却するようにしている。８は前記トーチ
１を後端から先端まで貫通するガス通路で、後喘τ前記
中空パイプ部６と連通ずると共に先端でトーチボディ２
先端に形成された凹部９に連通ヒ、中空パイプ部６から
供給された不活性ガス、本実施ｆＨＩではアルゴンガス
を凹部９から放出するようになっている。1 is a torch, copper torch body 2 and torch body L
- has an insulating rubber sleeve 3 fixed to the outer periphery of the tube. Three hollow pipe parts 4, 5 and 6 are formed at the rear end of the torch 1, and a cooling water passage 7 at the rear of the torch communicates between the junior high school bike parts 4, 5, and cooling water is supplied from the hollow pipe part 4. Cooling water is allowed to flow into the hollow pipe portion 5 through the water passage 7 to cool the torch body 2. Reference numeral 8 denotes a gas passage that penetrates the torch 1 from the rear end to the tip, and communicates with the hollow pipe section 6 at the rear end τ, and connects the torch body 2 at the tip.
The inert gas supplied from the hollow pipe section 6 is communicated with the recess 9 formed at the tip, and in this embodiment, argon gas is released from the recess 9.
ｌ Ｑは前記トーチボディ２先端の四部９に形成された
ネジ部に螺着される導電性材料からなるコレ・ｌトポデ
イ、１１はタングステンからなる電極１２を挿入した先
端に切り込みを形成した導電性材料からなるコレットで
、コレット１１をコレットボデ、、 １０に挿入し、コ
レットボディ１０をトーチボディ２の凹部９に螺着して
コレット１１後端を四部９に当接せしめ、コレットボデ
ィ１０にてコレット１１先端を締めつけてｔ極を固定す
るようになっており、後述するメッシュ線１７から供給
される電流を、トーチボディ１０、コレット９を介して
電極１２に供給するようになっている。また、前記凹部
９とコレット１１及びコレノドボディ１０とコレラ）１
１間には間隔が形成され、この間隔金介してガス通路８
から供給されるアルゴンガスがコレットボディ１０先端
の透孔１３から放出するようになっている。1 Q is a topodium made of a conductive material that is screwed into the screw part 9 formed at the tip of the torch body 2, and 11 is a conductive material with a notch formed at the tip into which an electrode 12 made of tungsten is inserted. Insert the collet 11 into the collet body 10, screw the collet body 10 into the recess 9 of the torch body 2, bring the rear end of the collet 11 into contact with the four parts 9, and then insert the collet 11 into the collet body 10. 11 is tightened to fix the t-pole, and a current supplied from a mesh wire 17 (described later) is supplied to the electrode 12 via the torch body 10 and collet 9. In addition, the recess 9, the collet 11, the collenoid body 10, and cholera) 1
1, and a gas passage 8 is formed through this spacer.
Argon gas supplied from the collet body 10 is released from the through hole 13 at the tip of the collet body 10.
１４は前記コレットボディ１０外周に螺着されるセラミ
ック製のハイアンカノブである。14 is a ceramic high anchor knob screwed onto the outer periphery of the collet body 10.
第１図において、１５は前記中空パイプ部・１（二装若
される冷却水供給パイプ、１６は前記中空パイ７部５に
装着される冷却水排水パイプで、前記冷却水供給パイプ
１５にはトーチボディ１０に電Ａを供給するメッシュ線
１７が形成されている。In FIG. 1, reference numeral 15 indicates the hollow pipe section 1 (a cooling water supply pipe which is installed in two sets), 16 indicates a cooling water drainage pipe attached to the hollow pipe 7 section 5; A mesh line 17 is formed to supply electricity A to the torch body 10.
１８は前記中空パイプ部６に装着されるガス供給パイプ
で、密封容３１９内に入れられた鉱物油１ＣｎＨｔ。１
の分子式を有する）、例えば、灯油、タービン油等内に
先端を挿入した第１のパイプ１８ａと、第１のパイプ１
８ａから供給されるアルゴンガスによって気化された鉱
物油を第１バイ７】８ａからのアルゴンガスと共にトー
チＩＣ；供給する第２のパイプ１８ｂとから溝底してい
る。Reference numeral 18 denotes a gas supply pipe attached to the hollow pipe section 6, and mineral oil 1CnHt is placed in a sealed container 319. 1
For example, a first pipe 18a whose tip is inserted into kerosene, turbine oil, etc.;
The mineral oil vaporized by the argon gas supplied from 8a is transferred to the torch IC along with the argon gas supplied from 8a; and from the second pipe 18b.
而して、上記ｔｌｌｆｆｌのタングステンイナートガス
アーク溶接機によってマグネトロン２０の無酸素！！ｉ
４製陽桶筒体２１とニッケルメッキ鋼板２２とを溶接す
る場合を説明する。Therefore, the tllffl tungsten inert gas arc welding machine makes the magnetron 20 oxygen-free! ! i
The case of welding the nickel-plated steel plate 22 to the nickel-plated steel plate 22 will be explained.
メッシュ線１７を介してトーチ１の電極１２に電流を供
給ヒ、マグネトロン２０との間に高電圧を印加して電極
１２と陽極筒体２１との間にアーク放電と行い、陽極筒
体２１の張出部２３を溶かして陽極筒体２１とニッケル
メッキ鋼板２２とを溶接する。A current is supplied to the electrode 12 of the torch 1 through the mesh wire 17, and a high voltage is applied between it and the magnetron 20 to create an arc discharge between the electrode 12 and the anode cylinder 21. The protruding portion 23 is melted and the anode cylinder body 21 and the nickel-plated steel plate 22 are welded.
また、ガス供給パイプ１８を介してアルゴンガスを供給
する。アルゴンガスは第１のパイプ１８ａの先端から密
封容器１９的の鉱物油内に供給さ！ｔ、鉱物油を霧状に
気化し、この霧状の鉱物油と央に＠２のパイプ１８ｂを
介してトーチｌに供給され、電ｉ１２と陽極筒体２１間
に発生するアークの周囲に放出されて溶接部分の酸化を
抑制する。一方、鉱物油はＣ，Ｈ□０の分子式を有して
いるから、霧状の鉱物油は溶接部分の熱によって炭素と
水素に分解し、溶接部分周囲の酸素と結び付いて二酸化
炭Ｘ（Ｃｏ、）と水（Ｈ，Ｏ）となり、その還元作用に
より溶接部分の酸化を防止する。Further, argon gas is supplied via the gas supply pipe 18. Argon gas is supplied from the tip of the first pipe 18a into the mineral oil in the sealed container 19! t, mineral oil is vaporized into a mist, and this mist mineral oil is supplied to the torch l via the pipe 18b in the center @2, and is emitted around the arc generated between the electrode i 12 and the anode cylinder body 21. to suppress oxidation of the welded area. On the other hand, since mineral oil has a molecular formula of C, H ) and water (H, O), and its reducing action prevents oxidation of the welded part.
従って、溶接部分の劣化がなくなり、極めて良奸？溶接
結果を得ることができる。Therefore, there is no deterioration of the welded part, making it extremely safe. Welding results can be obtained.
さらに、冷却水供給バイ７１６を介して冷却水を供給し
、メッシュ線１７を流れる熱による温度り昇を抑制する
。Furthermore, cooling water is supplied via the cooling water supply pipe 716 to suppress temperature rise due to heat flowing through the mesh wires 17.
尚、本実施例は、マグネトロン２０の陽極筒体２Ｉヒニ
ツケルメツキ鋼板２２とを溶接する場合を説明するもの
で、陽ｆｉ筒体２１の張出部２３と二７ケルメツキ鋼板
２２とは共に薄く形成されているたぬ、タングステンイ
ナートガスアーク溶接法を取ったが、肉厚のものを溶接
する場合には、メタルイナートガスアーク溶接法及び炭
酸ガスアーク溶（ヲ；去を用い、本実施例と同様にガス
中に鉱物油を添加してその還元作用により溶接部分の酸
化を防止するようにすることもできる。Note that this embodiment describes the case where the anode cylinder 2I of the magnetron 20 is welded to the steel plate 22, and both the overhanging part 23 of the positive fi cylinder 21 and the steel plate 22 are thin. We used the tungsten inert gas arc welding method, but when welding thick objects, we use the metal inert gas arc welding method and carbon dioxide arc welding, and weld in gas as in this example. It is also possible to add mineral oil to prevent oxidation of the welded part by its reducing action.
また、前記密封容器１９には、鉱物油が常に一定４供給
されているようにすることが望ましい。Further, it is desirable that a constant supply of mineral oil is always supplied to the sealed container 19.
（ト）発明の効果
本発明のアーク溶接機及びアーク溶接方法によれば、鉱
物油の還元作用により母材の酸化を防止することができ
、極めて良好な溶接結果を得ることができる等の効果を
奏する。(G) Effects of the Invention According to the arc welding machine and arc welding method of the present invention, oxidation of the base metal can be prevented by the reducing action of mineral oil, and extremely good welding results can be obtained. play.
図面はいづれも本発明の一実施例を示し、第１図は溶接
状態を説明する図、第２図はトーチの断面図である。
１−４−４．１２・・・・電極、１８・・・・ガス供総
バイブ、１９・・・・密封容器、２ｏ・・・・マグネト
ロンっThe drawings all show one embodiment of the present invention, with FIG. 1 being a diagram for explaining a welding state, and FIG. 2 being a sectional view of a torch. 1-4-4.12... Electrode, 18... Gas supply vibrator, 19... Sealed container, 2o... Magnetron
Claims (2)
前記電極の周囲にガスを供給する供給手段と、前記供給
手段から供給されるガス中に、鉱物油を添加する手段と
を有してなるアーク溶接機。(1) An electrode that generates arc discharge between it and the base material;
An arc welding machine comprising: supply means for supplying gas around the electrode; and means for adding mineral oil to the gas supplied from the supply means.
囲に、鉱物油を添加したガスを供給してなるアーク溶接
方法。(2) An arc welding method in which a gas containing mineral oil is supplied around an electrode that generates an arc discharge between the base metal and the base metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20806989A JPH0371980A (en) | 1989-08-11 | 1989-08-11 | Machine and method of arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20806989A JPH0371980A (en) | 1989-08-11 | 1989-08-11 | Machine and method of arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371980A true JPH0371980A (en) | 1991-03-27 |
Family
ID=16550132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20806989A Pending JPH0371980A (en) | 1989-08-11 | 1989-08-11 | Machine and method of arc welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371980A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921618A (en) * | 1996-04-04 | 1999-07-13 | Toyota Jidosha Kabushiki Kaisha | Lower body structure for vehicle |
| JP2010133119A (en) * | 2008-12-03 | 2010-06-17 | Osamu Okumura | Display panel mounting tool |
| US9290208B2 (en) | 2011-12-07 | 2016-03-22 | Toyota Jidosha Kabushiki Kaisha | Vehicle body lower portion structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272344A (en) * | 1975-12-15 | 1977-06-16 | Nippon Steel Corp | Gas shielded arc welding process |
| JPS52100339A (en) * | 1976-02-20 | 1977-08-23 | Nippon Steel Corp | Method of gas shielded arc welding |
-
1989
- 1989-08-11 JP JP20806989A patent/JPH0371980A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272344A (en) * | 1975-12-15 | 1977-06-16 | Nippon Steel Corp | Gas shielded arc welding process |
| JPS52100339A (en) * | 1976-02-20 | 1977-08-23 | Nippon Steel Corp | Method of gas shielded arc welding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921618A (en) * | 1996-04-04 | 1999-07-13 | Toyota Jidosha Kabushiki Kaisha | Lower body structure for vehicle |
| JP2010133119A (en) * | 2008-12-03 | 2010-06-17 | Osamu Okumura | Display panel mounting tool |
| US9290208B2 (en) | 2011-12-07 | 2016-03-22 | Toyota Jidosha Kabushiki Kaisha | Vehicle body lower portion structure |
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