JPS6016870B2 - MIG welding method - Google Patents
MIG welding methodInfo
- Publication number
- JPS6016870B2 JPS6016870B2 JP12193879A JP12193879A JPS6016870B2 JP S6016870 B2 JPS6016870 B2 JP S6016870B2 JP 12193879 A JP12193879 A JP 12193879A JP 12193879 A JP12193879 A JP 12193879A JP S6016870 B2 JPS6016870 B2 JP S6016870B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- nozzle
- steel
- argon
- mig welding
- 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.)
- Expired
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
- B23K9/16—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
- B23K9/1735—Arc welding or cutting making use of shielding gas and of a consumable electrode making use of several electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】 この発明は、ＭＩＧ溶接方法に関するものである。[Detailed description of the invention] The present invention relates to a MIG welding method.
例えば、９％のＮｉ鋼の如き特殊鋼をィナートガスとし
てアルゴンを使用したＭＧ溶接で溶接する場合には前記
Ｎｉ鋼はＣ０２，０２等の不純物により材質劣化が起る
ため、前記アルゴンとして斑〜１００％の高純度のもの
を使用する必要がある。For example, when special steel such as 9% Ni steel is welded by MG welding using argon as the inert gas, the material quality of the Ni steel deteriorates due to impurities such as CO2, 02, etc. % of high purity must be used.
しかし、このようなガス雰囲気中で肌Ｇ溶接すると、ア
ークが出やすくなるために、小電圧となってしまい入熱
量が減少し、溶込み不足が起りやすい。従って、以下の
ような方法を講じる必要がある。However, when skin G welding is performed in such a gas atmosphere, arcs are likely to occur, resulting in a low voltage, resulting in a decrease in heat input, which tends to result in insufficient penetration. Therefore, it is necessary to take the following method.
■ アルゴンにヘリウムを混合する。■ Mix helium with argon.
■ アルゴンにＣＱを５％前後混入するかあるいは０２
を２％前後混入する。■ Mix around 5% CQ with argon or 02
Mix around 2% of
■ ＴＩＧ溶接に変更する。■ Change to TIG welding.
ところが、上記各方法には以下のような問題点がある。However, each of the above methods has the following problems.
＠ ■の方法はヘリウムがアルゴンに比べ高価なので経
済的に不利である。■■の方法では溶接部の機械的性質
、特に鞠性が低下する。The method @ ■ is economically disadvantageous because helium is more expensive than argon. In the method (■■), the mechanical properties of the welded part, especially the ballability, deteriorate.
＠■の方法は肌Ｇ溶接に比べ溶接速度が１／９崖度であ
り能率が悪い。The method @■ has a welding speed that is 1/9 steeper than skin G welding, and is less efficient.
従って、９％Ｎｉ鋼等の特殊鋼のＭＩＧ溶接の実用化は
困難であるのが現状である。Therefore, it is currently difficult to put MIG welding of special steel such as 9% Ni steel into practical use.
この発明は、上述のような観点から９％Ｎｉ鋼の如き特
殊鋼の肌Ｇ溶接を可能としたＭＩＧ溶接を提供するもの
であって、ＴＩＧ溶接により、母材として、９％Ｎｉ鋼
等の特殊鋼を加熱しながら、絞りノズルを使用し、純度
聡〜１００％のアルゴンをイナートガスとしてＭＩＧ溶
接により前記母材を溶接することに特徴を有する。This invention provides MIG welding that enables skin G welding of special steel such as 9% Ni steel from the above-mentioned viewpoint, and uses TIG welding to weld 9% Ni steel etc. as a base material. The method is characterized in that the base metal is welded by MIG welding using a throttle nozzle and 100% pure argon as an inert gas while heating the special steel.
この発明を実施例により図面とともに説明する。The present invention will be explained by way of examples with reference to the drawings.
第１図には、この発明の方法により母材を立向き溶接し
ている状態が示されている。FIG. 1 shows a state in which base metals are vertically welded by the method of the present invention.
図において、１は厚さ１８柵の９％Ｎｉ鋼製の母材であ
り、６０ｏの関先２が形成してある。３は前記関先２に
先行／ズルとして配されている内径１２側◇のＴＩＧ溶
接（ィナートガスタングステンアーク溶接）用／ズルで
あり、母材１の溶接部分を加熱するものである。In the figure, reference numeral 1 denotes a base material made of 9% Ni steel with a thickness of 18 mm, on which a 60° joint 2 is formed. Reference numeral 3 designates a TIG welding (inert gas tungsten arc welding) welding/slug on the inner diameter 12 side ◇ which is arranged as a leading/slip at the joint 2 and heats the welded portion of the base metal 1.
一方、４は前記ノズル３と４仇舷の間隔をあげて関先２
に後行ノズルとして配されている肌Ｇ溶接（ィナートガ
スメタルァーク溶接）用ノズルで、これにより前記ノズ
ル３により加熱された溶接部分を溶接するものである。
前記ノズル４の内径は１６肋◇であり、その先端は内径
８肋Ｊに絞られている。前記ノズル４の先端を絞った理
由は、アークの集中を高めるためである。前記Ｔに溶接
用ノズル３のタングステンワイヤ５には、２０船の電流
と１０Ｖの電圧を供給し、一方、前記肌Ｇ溶接用ノズル
４の消耗電極ワィャ６には、１４Ｍの電流と滋 Ｖの電
圧を供給した。このときの溶接速度は５．＆ネ／ｍｉｎ
とし、イナートガスは１００％の純アルゴンを使用した
。尚、このガスは聡％のアルゴンと２％のＣ０２との混
合ガスでも良い。この結果、イナートガスとして高純度
アルゴンを使用して９％Ｍｉ鋼を肌Ｇ溶接したにもかか
わらず、十分な港込みが得られ、良好な溶接が行えた。
このように、この発明においては、高純度アルゴンをィ
ナートガスとして使用して肌Ｇ溶接を行うに際して、予
めＴＩＧ溶接により溶接部を加熱するので、従来問題と
なっていた、高純度アルゴンをィナートガスとして使用
することにより起る溶込み不足の問題が解消され、十分
な溶込みが得られる結果、９％Ｎｉ鋼の如き特殊鋼のＭ
ＩＧ溶接が可能となるといったきわめて有用な効果がも
たらされる。On the other hand, Nozzle 4 increases the distance between the nozzle 3 and the 4th side.
This is a nozzle for skin G welding (inert gas metal arc welding) which is arranged as a trailing nozzle in , and is used to weld the welded part heated by the nozzle 3.
The inner diameter of the nozzle 4 is 16 ribs ◇, and its tip is narrowed to an inner diameter of 8 ribs J. The reason why the tip of the nozzle 4 is narrowed is to increase the concentration of the arc. The tungsten wire 5 of the welding nozzle 3 is supplied with a current of 20V and a voltage of 10V, while the consumable electrode wire 6 of the welding nozzle 4 of the skin G is supplied with a current of 14M and a voltage of 10V. supplied voltage. The welding speed at this time was 5. &ne/min
100% pure argon was used as the inert gas. Note that this gas may be a mixed gas of 1% argon and 2% CO2. As a result, even though the 9% Mi steel was skin G-welded using high-purity argon as the inert gas, sufficient port penetration was obtained and good welding could be performed.
In this way, in this invention, when performing skin G welding using high-purity argon as an inert gas, the welded part is heated in advance by TIG welding, which eliminates the conventional problem of using high-purity argon as an inert gas. The problem of insufficient penetration caused by
A very useful effect such as IG welding becomes possible is brought about.
第１図は、この発明の実施例を示す斜視図である。
図面において、１・・・母材、２…関先、３・・・ＴＩ
Ｃ溶接用ノズル、４…肌Ｇ溶接用ノズル、５…３のヮィ
ャ、６・・・４のワイヤ。
発′図FIG. 1 is a perspective view showing an embodiment of the invention. In the drawing, 1...Base material, 2...Section, 3...TI
C welding nozzle, 4...Skin G welding nozzle, 5...3 wire, 6...4 wire. development diagram
Claims (1)
鋼を加熱しながら、絞りノズルを使用し、純度９８〜１
００％のアルゴンをイナートガスとしてＭＩＧ溶接によ
り前記母材を溶接することを特徴とするＭＩＧ溶接方法
。1 TIG welding is used to heat special steel such as 9% Ni steel as the base material and use a squeezing nozzle to achieve a purity of 98 to 1.
A MIG welding method, characterized in that the base metal is welded by MIG welding using 00% argon as an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12193879A JPS6016870B2 (en) | 1979-09-25 | 1979-09-25 | MIG welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12193879A JPS6016870B2 (en) | 1979-09-25 | 1979-09-25 | MIG welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5647276A JPS5647276A (en) | 1981-04-28 |
| JPS6016870B2 true JPS6016870B2 (en) | 1985-04-27 |
Family
ID=14823639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12193879A Expired JPS6016870B2 (en) | 1979-09-25 | 1979-09-25 | MIG welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6016870B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2548884B2 (en) * | 1993-06-23 | 1996-10-30 | 桜軽金属工業株式会社 | Lubrication method for colored alumite |
| JP2014014828A (en) * | 2012-07-06 | 2014-01-30 | Mitsubishi Electric Corp | Welding method, and welding apparatus |
-
1979
- 1979-09-25 JP JP12193879A patent/JPS6016870B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5647276A (en) | 1981-04-28 |
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