JPS63112071A - Method for controlling arc plasma - Google Patents
Method for controlling arc plasmaInfo
- Publication number
- JPS63112071A JPS63112071A JP25801786A JP25801786A JPS63112071A JP S63112071 A JPS63112071 A JP S63112071A JP 25801786 A JP25801786 A JP 25801786A JP 25801786 A JP25801786 A JP 25801786A JP S63112071 A JPS63112071 A JP S63112071A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- arc
- plasma
- magnetic field
- exciting coil
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 24
- 238000003466 welding Methods 0.000 claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 210000002381 plasma Anatomy 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 13
- 230000005284 excitation Effects 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010953 base metal Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc Welding Control (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は各種浴接構造物の溶接に適用される新しいアー
ク溶接やプラズマ浴接（プラズマ切断）に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to new arc welding and plasma bath welding (plasma cutting) that are applied to welding various bath welded structures.
従来のアーク浴接の一種であるＭＩＧ溶接方法の概要を
第６図に示す。シールドノズル０９から流すシールドガ
ス（Ａｒ、 ＣＯ，）又はこれらの混合ガス０８などの
中で、浴接電源０１０から給電チップ０７を有した給電
体０６に浴接ワイヤ０５を送給し、母材Ｏ１と浴接ワイ
ヤ０５の間でアーク０４ヲ発生させ、そのアーク熱で溶
融金属０８を作りながら浴接ビード０２ヲ形成するよう
に溶接を行う方法であるが、最近開発の著しい電子ビー
ム溶接やレーザ浴接に比ベエネルギー密度が小さいため
溶接速度に限界があり、浴込み深さも比較的浅い。した
がって、母材熱影響部の幅が広くなり、靭性や耐食性の
点から不利となっている。FIG. 6 shows an outline of the MIG welding method, which is a type of conventional arc bath welding. A bath welding wire 05 is fed from a bath welding power supply 010 to a power feeder 06 having a power feeding tip 07 in a shielding gas (Ar, CO,) or a mixed gas 08 of these flowing from a shielding nozzle 09, and the base material is This method generates an arc 04 between O1 and the bath welding wire 05, and uses the arc heat to create molten metal 08 while forming the bath welding bead 02. However, electron beam welding, which has recently been significantly developed, There is a limit to the welding speed due to the low relative energy density of laser bath welding, and the bath depth is also relatively shallow. Therefore, the width of the base metal heat affected zone becomes wider, which is disadvantageous in terms of toughness and corrosion resistance.
前述のように、従来方法ではアークやプラズマは広がシ
やすいが、エネルギー密度が小さく。As mentioned above, in conventional methods, arcs and plasma spread easily, but their energy density is low.
浴接や切断（プラズマ）に際して加熱時間を必要とする
。したがって、溶接速度が遅く、浴込み深さも浅くなる
問題がある。Requires heating time during bath welding and cutting (plasma). Therefore, there are problems in that the welding speed is slow and the bathing depth is shallow.
Ｃ問題点を解決するための手段〕
本発明はと記問題点を解決するために、溶接（切断）ト
ーチの先端に設けた回転対称磁界型や４極子磁界型等の
電子レンズによりアークやプラズマを集束し、エネルギ
ー密度をＬげて高速溶接（切断）、深溶込み溶接、低入
熱溶接が可能となる。すなわち、ＴＩＧ溶接、ＭＩＧ溶
接、潜弧浴接等の溶接アーク及びプラズマ溶接。Means for Solving Problem C] In order to solve the above problem, the present invention uses an electron lens of a rotationally symmetrical magnetic field type or a quadrupole magnetic field type provided at the tip of a welding (cutting) torch to generate an arc or plasma. By focusing the energy density, high-speed welding (cutting), deep penetration welding, and low heat input welding are possible. That is, welding arc and plasma welding such as TIG welding, MIG welding, and submerged arc bath welding.
プラズマ切断等のプラズマを、前記アークやプラズマの
周囲に設けた回転対称磁界型、又は４極子磁界型の電子
レンズにより制御して集束させることを特徴とするアー
ク、プラズマの制御方法全提供するものである。A complete method for controlling arcs and plasmas, which comprises controlling and focusing plasma during plasma cutting, etc., using a rotationally symmetrical magnetic field type or quadrupole magnetic field type electron lens provided around the arc or plasma. It is.
本発明のアーク、プラズマ制御方法はＬ記方法によりア
ークやプラズマを簡単な装置により集束可能として、電
子ビーム溶接やレーザ浴接（切断）に比べ安価な装置で
高速深浴込み溶接や高速切断が可能となるようにしたア
ーク、プラズマの制御方法である。The arc and plasma control method of the present invention enables arc and plasma to be focused using a simple device using method L, and enables high-speed deep bath welding and high-speed cutting with cheaper equipment than electron beam welding and laser bath welding (cutting). This is a method of controlling arc and plasma that makes it possible.
以下２本発明全図面に示す実施例に基づいて具体的に説
明する。第１図は本発明の第１実施例に係る回転対称磁
界型電子レンズにおけるアーク、プラズマの制御方法を
示す概念図。第２図は本実施例に係る第１図トｌ矢視の
平面で。The present invention will be specifically described below based on two embodiments shown in the drawings. FIG. 1 is a conceptual diagram showing a method for controlling arc and plasma in a rotationally symmetric magnetic field type electron lens according to a first embodiment of the present invention. FIG. 2 is a plane taken in the direction of arrow L in FIG. 1 according to this embodiment.
シールドノズル部の周囲に磁界を集束する模式図。第３
図は本発明の第２実施例に係る４極子磁界型電子レンズ
におけるアーク、プラズマの制御方法を示す概念図。第
４図は本実施例に係る第３図ｆｆ−ＩＶ矢視の平面で、
電磁コイルをアークやプラズマの周囲に直交させる構造
を示す。A schematic diagram of focusing a magnetic field around a shield nozzle part. Third
The figure is a conceptual diagram showing a method for controlling arc and plasma in a quadrupole magnetic field type electron lens according to a second embodiment of the present invention. FIG. 4 is a plane taken from arrow ff-IV in FIG. 3 according to this embodiment,
This shows a structure in which an electromagnetic coil is placed orthogonally around the arc or plasma.
第５図は本発明の第１．第２実施例に係る原理を示す（
ａ）図は回転対称磁界型を、同（ｂ）図は４極子磁界型
の原理図である。以下にその説明をする。FIG. 5 shows the first embodiment of the present invention. The principle related to the second embodiment is shown (
Figure (a) shows the rotationally symmetric magnetic field type, and Figure (b) shows the principle of the quadrupole magnetic field type. The explanation is below.
第１図において従来のＭＩＧ浴接装置は浴接ワイヤ５に
給電する給電チップ７を有した給電体６に浴接電源ｌＯ
よシ正極側、母材１を負極側として通電し、この給電体
６を包囲してできる空洞部にシールドガス８を流してア
ーク４による溶融金属３をシールドするシールドノズル
９から構成されて、溶接金属２を形成するものが一般的
である。ここで本発明が従来のｔｌＧ溶接方法と変わる
ところは、第１図、第２図に示すような溶接トーチ先端
の非磁性体からなるシールドノズル１１の周囲にポール
ピース１２を有した軟鉄の鉄心１３からなる励磁コイル
１４を設け。In FIG. 1, the conventional MIG bath welding device connects a bath welding power supply lO
It is composed of a shield nozzle 9 that is energized with the positive electrode side and the base material 1 as the negative electrode side, and that shields the molten metal 3 caused by the arc 4 by flowing the shielding gas 8 into the cavity formed by surrounding the power supply body 6. Those that form the weld metal 2 are common. Here, the difference between the present invention and the conventional tlG welding method is that a soft iron core with a pole piece 12 surrounding a shield nozzle 11 made of a non-magnetic material at the tip of a welding torch is shown in FIGS. 1 and 2. An excitation coil 14 consisting of 13 is provided.
この励磁コイル１４に励磁電源１７より直流電流を流し
、励磁コイル１４を取り巻くように生じる磁界をポール
ピース１２のギャップ部Ｇに集め。A direct current is applied to this excitation coil 14 from an excitation power source 17, and a magnetic field generated surrounding the excitation coil 14 is collected in the gap G of the pole piece 12.
第２図に示す模式のように生じた強力な磁場でアーク４
やプラズマ（これらは共に電子の流れである）を集束し
、エネルギー密度の高いアーク４やプラズマを利用して
高速深溶込み溶接を行う方法である。なお、このポール
ピース１２にはアーク熱の遮断策として冷却パイプ１５
′ｌｔ介して冷却水１６ヲ流して冷却する方法を採用し
ている。The arc 4 is generated by a strong magnetic field as shown in the diagram shown in Figure 2.
This is a method in which high-speed deep penetration welding is performed by focusing the arc 4 and plasma (both of which are electron flows) and utilizing the arc 4 and plasma with high energy density. Note that this pole piece 12 is equipped with a cooling pipe 15 as a measure to cut off arc heat.
A cooling method is adopted in which 16 volumes of cooling water are allowed to flow through the tube.
次いで本発明の第２実施例である第３図の４極子磁界型
電子レンズによるＭＩＧ溶接方法について構造から説明
するとＭＩＧ溶接装置の一般的な構造は省略し、第１実
施例である第１図との差異を比べると非磁性体からなる
シールドノズル１１と、このシールドノズル１１がシー
ルドノズル９と螺合して取付けられる部分を下部は円錐
形状で北部は円筒形状を一体化して包囲する鉄心１３の
上部円筒状にリング状とした鉄心１８と、励磁コイル１
４を第４図で示すように２対又は４対以北を設けたもの
である。第２実施例では４個（２対）の励磁コイル１４
をアーク４やプラズマの周囲に直交するように設けた構
造のものを示す。この場合、第１図の第１実施例の方法
に比べて比較的弱い磁場強度でも強い集束作用が得られ
、更に各欄の励磁電流を制御することによシ橢円等の非
円形ビームを作ることも可能となる方法で、各対の磁石
はＮ−Ｎ、Ｓ−Ｓの同極であるが、隣りの極とは逆とな
っている。Next, the MIG welding method using a quadrupole magnetic field type electron lens shown in FIG. 3, which is a second embodiment of the present invention, will be explained from the structure.The general structure of the MIG welding device will be omitted, and FIG. Comparing the differences between the shield nozzle 11 made of a non-magnetic material and the iron core 13 that surrounds the part where this shield nozzle 11 is screwed with the shield nozzle 9, the lower part is conical and the northern part is cylindrical. An upper cylindrical ring-shaped iron core 18 and an exciting coil 1
As shown in Figure 4, 2 pairs or 4 pairs or more north of the 4 pairs are provided. In the second embodiment, four (two pairs) excitation coils 14
This figure shows a structure in which the arc 4 and the plasma are perpendicular to each other. In this case, a strong focusing effect can be obtained even with a relatively weak magnetic field strength compared to the method of the first embodiment shown in FIG. In such a way that it is possible to make each pair of magnets have the same polarity, N-N, S-S, but with opposite polarity to the adjacent one.
ここで、第４図に示す鉄心１３先端の半径ＲをＲ＝１．
１２５〜１．２５８にすれば均一な磁場が得られる。な
お第５図に前述の第１実施例及び第２実施例におけるそ
れぞれ（ａ）図は回転対称磁界方法。Here, the radius R of the tip of the iron core 13 shown in FIG. 4 is set to R=1.
A uniform magnetic field can be obtained by setting the value to 125 to 1.258. In addition, in FIG. 5, (a) in each of the above-mentioned first and second embodiments shows the rotationally symmetrical magnetic field method.
同（ｂ）図は４極子磁界方法の各作動原理図を示すが、
何れも７レミングの左手の法則によって決まる方向に曲
げられ集束する。（８１図ではアーク４やプラズマの集
束に従来の溶接ワイヤ５と同等幅に分散した電流Ｉが励
磁コイル１４をボートピース１２全介してアーク４やプ
ラズマ部に対向さすことにより磁界Ｂがアーク４の電流
Ｉは図示しだ母材ｌに破線のように集束されるものであ
る。又、同（ｂ）図の４ｉ子磁界方法には図示のように
磁界Ｂ部に矢印の下で示すローレンツ力が電流ｌを母材
１に集束することとなる。この両者における有効性は第
２実施例の４極子磁界方法である。本発明による２方法
と従来方法の溶接試験結果を６０キロ級高張力鋼のＭＵ
Ｇ溶接を対象として下表に示す。Figure (b) shows the operating principles of the quadrupole magnetic field method.
Both are bent and focused in the direction determined by the left hand rule of the 7 lemmings. (In Fig. 81, when the arc 4 and plasma are focused, a current I distributed in the same width as that of the conventional welding wire 5 causes the exciting coil 14 to face the arc 4 and plasma part through the entire boat piece 12, so that the magnetic field B is The current I is focused on the base material l as shown in the figure as shown by the broken line.In addition, in the 4i magnetic field method in the same figure (b), there is a Lorentzian current in the magnetic field B shown under the arrow as shown in the figure. The force focuses the current l on the base metal 1.The quadrupole magnetic field method of the second embodiment is effective in both cases.The welding test results of the two methods according to the present invention and the conventional method are MU of tension steel
The table below shows G welding.
と表からも分かるように従来方法に比べ１本発明の方法
は同様な溶接電流でもアーク長が短くなり、アーク電圧
が小さくなっている。従ってアーク集束効果と重畳し、
スピードが速くなっても良好な溶接性とビード外観、深
浴込み浴接が可能となる溶接方法である。As can be seen from the table, compared to the conventional method, the method of the present invention has a shorter arc length and lower arc voltage even at the same welding current. Therefore, it overlaps with the arc focusing effect,
This welding method provides good weldability, good bead appearance, and deep bath welding even at high speeds.
以り具体的に説明したように１本発明においては溶接ト
ーチ先端の非磁性体シールドノズルの周囲に設けた各種
電子レンズによりアークやプラズマを集束し、エネルギ
ー密度をと昇するととによ＃）高速深溶は込み溶接が可
能となシ。As explained more specifically, in the present invention, the arc and plasma are focused by various electron lenses provided around the non-magnetic shield nozzle at the tip of the welding torch, and the energy density is increased. High-speed deep welding welding is possible.
鋼板の高速−層溶接やステンレス鋼の低入熱浴接が行え
、又、プラズマの場合は高速切断も可能となる。High-speed layer welding of steel plates and low heat input bath welding of stainless steel can be performed, and high-speed cutting is also possible in the case of plasma.
第１図は本発明の第１実施例に係る回転対称磁界型にお
けるアーク、プラズマの制御方法を示す概念図、第２図
は本実施例に係る第１図Ｕ−Ｕ矢視の平面でシールドノ
ズル部の周囲に磁界全集束する模式図、第３図は本発明
の第２実施例に係、る４衝子磁界型におけるアーク、プ
ラズマの制御方法を示す概念図、第４図は本実施例に係
る第３図ＩＶ−ＩＶ矢視の平面で電磁コイルをアークや
プラズマの周囲に直交させる構造を示す。第５図は本発
明の第１．第２実施例に係る原理を示す（ａ）図は回転
対称磁界型、同（ｂ）図は４極子磁界型、第６図は従来
のＭＩＧ溶接方法に係る概要図である。
１・・・母材（被溶接材料）、２・・・溶接金属、８・
・・溶融金属、４・・・アーク、５・・・溶接ワイヤ、
６・・・給電ｆ率、 ７・・・給電チップ、８・・・シ
ールドガス。
９・・・シールドノズル、 １０・・・溶接電源（直流
又は直流パルス）、１１・・・シールドノズル、１２・
・・ボールヒース、１３・・・軟鉄（鉄心）、１４・・
・励磁コイル、１５・・・水冷パイプ、１６・・・冷却
水、１７・・・励磁電源（直流）、１８・・・軟鉄（リ
ング状）である。FIG. 1 is a conceptual diagram showing a method of controlling arc and plasma in a rotationally symmetrical magnetic field type according to the first embodiment of the present invention, and FIG. 2 is a shielding plane in the direction of arrows U-U in FIG. 1 according to the present embodiment. FIG. 3 is a schematic diagram showing how the magnetic field is fully focused around the nozzle part. FIG. 3 is a conceptual diagram showing the arc and plasma control method in a four-force magnetic field type according to the second embodiment of the present invention. FIG. FIG. 3 according to an example shows a structure in which an electromagnetic coil is perpendicular to the periphery of an arc or plasma in a plane taken along arrows IV-IV. FIG. 5 shows the first embodiment of the present invention. The principle according to the second embodiment is shown in Fig. 6(a) of the rotationally symmetric magnetic field type, Fig. 6(b) of the quadrupole magnetic field type, and Fig. 6 is a schematic diagram of the conventional MIG welding method. 1...Base metal (material to be welded), 2...Weld metal, 8.
... Molten metal, 4... Arc, 5... Welding wire,
6... Power feeding f rate, 7... Power feeding chip, 8... Shielding gas. 9... Shield nozzle, 10... Welding power source (DC or DC pulse), 11... Shield nozzle, 12...
...Ball heath, 13...Soft iron (iron core), 14...
- Excitation coil, 15... Water cooling pipe, 16... Cooling water, 17... Excitation power source (DC), 18... Soft iron (ring shape).
Claims (1)
プラズマ溶接、プラズマ切断等のプラズマを、前記アー
クやプラズマの周囲に設けた回転対称磁界型又は４極子
磁界型等の電子レンズにより制御して集束させることを
特徴とするアーク、プラズマの制御方法。Welding arcs such as TIG welding, MIG welding, and latent arc welding and plasmas such as plasma welding and plasma cutting are controlled by an electron lens of a rotationally symmetric magnetic field type or a quadrupole magnetic field type provided around the arc or plasma. A method of controlling arc and plasma characterized by focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61258017A JPH07102458B2 (en) | 1986-10-29 | 1986-10-29 | Control method for arc and plasma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61258017A JPH07102458B2 (en) | 1986-10-29 | 1986-10-29 | Control method for arc and plasma |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63112071A true JPS63112071A (en) | 1988-05-17 |
| JPH07102458B2 JPH07102458B2 (en) | 1995-11-08 |
Family
ID=17314371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61258017A Expired - Lifetime JPH07102458B2 (en) | 1986-10-29 | 1986-10-29 | Control method for arc and plasma |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07102458B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100421424B1 (en) * | 2001-05-25 | 2004-03-09 | 한국과학기술원 | Narrow Gap Welding Torch Built With Electromagnet |
| CN103737164A (en) * | 2014-01-03 | 2014-04-23 | 上海交通大学 | Plasma column compressor |
| CN108213649A (en) * | 2017-12-12 | 2018-06-29 | 南京理工大学 | A kind of magnetic field control type electric arc robot increases material manufacturing process and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5568181A (en) * | 1978-11-16 | 1980-05-22 | Nippon Kokan Kk <Nkk> | Control method of welding arc |
| JPS58379A (en) * | 1981-06-25 | 1983-01-05 | Mitsubishi Heavy Ind Ltd | Plasma arc welding and cutting method |
-
1986
- 1986-10-29 JP JP61258017A patent/JPH07102458B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5568181A (en) * | 1978-11-16 | 1980-05-22 | Nippon Kokan Kk <Nkk> | Control method of welding arc |
| JPS58379A (en) * | 1981-06-25 | 1983-01-05 | Mitsubishi Heavy Ind Ltd | Plasma arc welding and cutting method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100421424B1 (en) * | 2001-05-25 | 2004-03-09 | 한국과학기술원 | Narrow Gap Welding Torch Built With Electromagnet |
| CN103737164A (en) * | 2014-01-03 | 2014-04-23 | 上海交通大学 | Plasma column compressor |
| CN103737164B (en) * | 2014-01-03 | 2016-11-09 | 上海交通大学 | Plasma column compressor |
| CN108213649A (en) * | 2017-12-12 | 2018-06-29 | 南京理工大学 | A kind of magnetic field control type electric arc robot increases material manufacturing process and device |
| CN108213649B (en) * | 2017-12-12 | 2021-07-06 | 南京理工大学 | Material increase forming method and device for magnetic field control type electric arc robot |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07102458B2 (en) | 1995-11-08 |
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