JPH0530857Y2 - - Google Patents
Info
- Publication number
- JPH0530857Y2 JPH0530857Y2 JP1985200866U JP20086685U JPH0530857Y2 JP H0530857 Y2 JPH0530857 Y2 JP H0530857Y2 JP 1985200866 U JP1985200866 U JP 1985200866U JP 20086685 U JP20086685 U JP 20086685U JP H0530857 Y2 JPH0530857 Y2 JP H0530857Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- current
- power supply
- excitation
- magnetic stirring
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims description 54
- 230000005284 excitation Effects 0.000 claims description 35
- 238000003760 magnetic stirring Methods 0.000 claims description 22
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 230000010355 oscillation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010953 base metal Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Arc Welding Control (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、原動機、化学機械、鉄構、海構、
船舶などに磁気攪拌溶接法を適用する磁気攪拌溶
接用励磁コイル駆動交番電流発生電源装置に関す
る。[Detailed explanation of the invention] [Industrial application field] This invention is applicable to prime movers, chemical machinery, steel structures, maritime structures,
The present invention relates to an alternating current generating power supply device for driving an excitation coil for magnetic stir welding, which is applied to ships and the like.
第５図に磁気攪拌溶接法の概要をTIG溶接を対
象に示す。この第５図において、励磁コイル１２
ａ，１２ｂに励磁電源１３から励電流を流すよう
にしており、励磁コイル１２ａはシールドノズル
７の外周面に巻装され、励磁コイル１２ｂは鉄心
１４の外周面に巻装されている。
Figure 5 shows an overview of the magnetic stir welding method for TIG welding. In this FIG. 5, the excitation coil 12
An excitation current is applied to a and 12b from an excitation power source 13, and the excitation coil 12a is wound around the outer circumference of the shield nozzle 7, and the excitation coil 12b is wound around the outer circumference of the iron core 14.
励磁コイル１２ａ，１２ｂにより、垂直方向に
磁界１５を発生するようになつており、また、シ
ールドノズル７内にはシールドガス１０（Arな
ど、不活性ガス）が供給されるようになつてい
る。 A magnetic field 15 is generated in the vertical direction by the excitation coils 12a and 12b, and a shielding gas 10 (an inert gas such as Ar) is supplied into the shielding nozzle 7.
また、シールドノズル７には冷却水入口８と冷
却水出口９が設けられており、冷却水入口８から
流入した冷却水はシールドノズル７を経て、冷却
水出口９から流出するようにしている。 Further, the shield nozzle 7 is provided with a cooling water inlet 8 and a cooling water outlet 9, and the cooling water that flows in from the cooling water inlet 8 passes through the shield nozzle 7 and flows out from the cooling water outlet 9.
シールドノズル７の上部には、給電チツプ６が
設けられており、この給電チツプ６からタングス
テン電極５がシールドノズル７内に挿入されてい
る。この給電チツプ６と母材１（被溶接材料）間
に、溶接電源１１から溶接電圧を供給するように
している。 A power supply chip 6 is provided above the shield nozzle 7, and the tungsten electrode 5 is inserted into the shield nozzle 7 from the power supply chip 6. A welding voltage is supplied from a welding power source 11 between the power supply chip 6 and the base material 1 (material to be welded).
このように構成することにより、溶接トーチ先
端、溶接金属直上または直下、あるいは両方に設
けた励磁コイル１２ａ，１２ｂに励磁電流を流
し、それによつて生じた垂直方向の磁場１５と電
磁５、アーク４、溶融金属３、母材１と流れる溶
接電流１６で溶融金属３に生じる電磁力により、
溶融金属３を攪拌しながら溶接を行い、結晶粒の
微細化による割れ防止やガス浮上によるブローホ
ール防止、さらにビート形状制御による裏波溶接
などを行つている。 With this configuration, an excitation current is passed through the excitation coils 12a and 12b provided at the tip of the welding torch, directly above or below the weld metal, or both, and the vertical magnetic field 15, electromagnetic field 5, and arc 4 generated thereby , due to the electromagnetic force generated in the molten metal 3 by the welding current 16 flowing between the molten metal 3 and the base metal 1,
Welding is performed while stirring the molten metal 3, preventing cracks by making the crystal grains finer, preventing blowholes by floating gas, and performing underwave welding by controlling the beat shape.
第６図は上記励磁電流の励磁電源として従来用
いられていた低周波矩形波交流励磁電源の回路図
の一例を示す。この第６図において、AC100Vを
電源として、スイツチ２４ａ、トランス１８ａ、
整流器１９ａを通つて直流が得られる。この直流
はマグネツトスイツチ２０の接点２０ａを介して
第５図の励磁コイル１２ａ，１２ｂに供給するよ
うにしている。 FIG. 6 shows an example of a circuit diagram of a low frequency rectangular wave AC excitation power source conventionally used as an excitation power source for the excitation current. In this FIG. 6, with AC100V as the power source, the switch 24a, the transformer 18a,
Direct current is obtained through rectifier 19a. This direct current is supplied to the excitation coils 12a and 12b shown in FIG. 5 through the contact 20a of the magnetic switch 20.
一方、AC100Vの交流電源はスイツチ２４ｂ、
トランス１８ｂ、整流器１９ｂにより、直流電圧
を発生するようにしており、この直流電圧はマグ
ネツトスイツチ２０のコイル２０ｂに供給するよ
うにしている。 On the other hand, the AC100V AC power supply is switch 24b,
A DC voltage is generated by a transformer 18b and a rectifier 19b, and this DC voltage is supplied to a coil 20b of a magnetic switch 20.
さらに、AC100Vの交流電源でモータ２３を駆
動し、このモータ２３の回転速度を減速機２２で
減速してカム２１を回転させるようにしている。
カム２１は一定の回転速度で回転し、スイツチ２
４ａ〜２４ｃをオン・オフさせる。 Further, a motor 23 is driven by an AC power source of 100 V AC, and the rotational speed of the motor 23 is reduced by a reducer 22 to rotate the cam 21.
The cam 21 rotates at a constant speed, and the switch 2
4a to 24c are turned on and off.
これにより、マグネツトスイツチ２０のコイル
２０ｂが励磁、消磁が繰り返され、その接点２０
ａが切り換わり、整流器１９ａの出力の極性を変
えることにより、ある一定の低周波矩形波交流を
得ていた。したがつて、周波数やデユーテイ比
（の時間／の時間）外部との同期は困難であ
る。 As a result, the coil 20b of the magnetic switch 20 is repeatedly energized and demagnetized, and the contact 20b of the magnetic switch 20 is repeatedly energized and demagnetized.
By switching a and changing the polarity of the output of the rectifier 19a, a certain low frequency rectangular alternating current was obtained. Therefore, external synchronization of frequency and duty ratio (time/time) is difficult.
また、第７図に磁気攪拌の作動原理を示すが、
従来の場合、第６図に示した電源を用いるため、
溶融池の直上、直下または両方に設けた励磁コイ
ルにT1＝T2 I1＝I2である任意の低周波矩形波交
流を流し、直流溶接電源を用いる溶接法を対象に
磁気攪拌が行われていた。 The principle of magnetic stirring is shown in Figure 7.
In the conventional case, the power supply shown in FIG.
Magnetic stirring was performed for welding methods using a DC welding power source by passing an arbitrary low-frequency square wave AC current where T 1 = T 2 I 1 = I 2 through an excitation coil installed directly above, directly below, or both the molten pool and the weld pool.
第７図において、第７図ｂに示すT1では第７
図ｃに示すように、磁場１５が上から下へ流れ、
溶融金属３を放射状に流れる溶接電流（第７図
ａ）とで、溶融池に第７図ｄのように右回転のロ
ーレンツ力が生じ、第７図ｄおよび第７図ｅに示
すように、右回転の電磁力１７が生じる。 In Fig. 7, at T 1 shown in Fig. 7b, the 7th
As shown in figure c, the magnetic field 15 flows from top to bottom,
Due to the welding current flowing radially through the molten metal 3 (Fig. 7a), a clockwise Lorentz force is generated in the molten pool as shown in Fig. 7d, and as shown in Figs. 7d and 7e, A clockwise rotational electromagnetic force 17 is generated.
次に、左では逆のことが起こり、左回転を行
う。これを繰り返すことにより、効果的磁気攪拌
を行つている。 Then on the left the opposite happens and we perform a left rotation. By repeating this process, effective magnetic stirring is achieved.
磁気攪拌溶接法の適用拡大に当り、励磁電源に
多くの機能が要求されるようになつた。
With the expansion of the application of magnetic stir welding, many functions are now required of the excitation power source.
すなわち、まず従来の磁気攪拌で効果の小さい
材料に対して攪拌効果を増すため、パルス電流に
よる上下方向の振動と磁気攪拌の重量効果を利用
するため、パルス電流に対応する必要が生じ、結
晶粒微細化に効果的なパルス電流同期機能が要求
された（詳細は特願昭56−83607号明細書参照）。 First, in order to increase the stirring effect on materials for which conventional magnetic stirring has little effect, it is necessary to use the vertical vibration caused by pulsed current and the weight effect of magnetic stirring. An effective pulse current synchronization function was required for miniaturization (see Japanese Patent Application No. 83607/1983 for details).
次に、溶接姿勢は下向きの他に横向き溶接への
適用が必要となり、従来法で問題となつている溶
融金属のたれ落ち防止制御のため、持ち上げが働
く方向の磁場を強く、時間を長くするなど各種波
形の励磁電流発生やパルス電流との同期機能が要
求される（詳細は特願昭58−01567号明細書参
照）。 Next, it is necessary to apply the welding position to sideways welding in addition to downward, and in order to prevent molten metal from dripping, which is a problem with conventional methods, the magnetic field in the lifting direction is stronger and the time is longer. It is required to generate excitation currents with various waveforms, such as, and to synchronize with pulse currents (for details, see the specification of Japanese Patent Application No. 158-01567).
さらに、配管（パイプ）の裏波溶接などでは、
融合不良など、欠陥防止や裏波ビード安定化のた
めオシレーシヨンとの同期も必要とされた（詳細
は特願昭60−136050号明細書参照）が従来の電源
では対応できなかつた。 In addition, in Uranami welding of piping, etc.
Synchronization with oscillation was also required to prevent defects such as fusion failure and to stabilize the underwave bead (see Japanese Patent Application No. 136050/1983 for details), but this could not be achieved with conventional power supplies.
この考案は、上記従来の欠点を除去するために
なされたもので、磁気攪拌の適用拡大に当り、各
種励磁電流波形の発生の他にパルス溶接電流やオ
シレーシヨンに同期する機能も有する磁気攪拌溶
接用励磁コイル駆動交番電流発生電源装置を提供
することを目的とする。 This idea was made in order to eliminate the above-mentioned drawbacks of the conventional methods, and in order to expand the application of magnetic stirring, we developed a magnetic stir welding system that not only generates various exciting current waveforms but also has the function of synchronizing with pulsed welding current and oscillation. An object of the present invention is to provide an excitation coil drive alternating current generation power supply device.
この考案の磁気攪拌溶接用励磁コイル駆動交番
電流発生電源装置は、各種波形の電圧およびパル
ス溶接電流やオシレーシヨンと同期して各種波形
の低周波矩形波交流を発生する手段を設けたもの
である。
The excitation coil drive alternating current generation power supply device for magnetic stirring welding of this invention is provided with means for generating low frequency rectangular wave alternating current of various waveforms in synchronization with voltages of various waveforms, pulsed welding currents, and oscillations.
この考案は、溶接金属に溶融池の直上、直下、
両側面のいずれかに設けた励磁コイルに１〜20Hz
程度の各種波形の交流電流を流して交番磁界と溶
接電流によるローレンツ力により溶融池を攪拌ま
たは溶融池形状制御を行う。
This idea allows the weld metal to be placed directly above or below the molten pool.
1 to 20Hz to the excitation coil installed on either side
The molten pool is stirred or the molten pool shape is controlled by the Lorentz force caused by the alternating magnetic field and the welding current by passing alternating current with various waveforms.
以下、この考案の磁気攪拌溶接用励磁コイル駆
動交番電流発生電源装置の実施例を図面に基づい
て具体的に説明する。第１図はその一実施例の構
成を示すブロツク図である。
Hereinafter, embodiments of the exciting coil drive alternating current generating power supply device for magnetic stirring welding of this invention will be described in detail based on the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment.
この第１図において、AC100Vから主電源３１
（定電圧、定電流）でパワートランジスタドライ
ブ回路３２を駆動するようになつており、また、
AC100VによりCR発振器３３を動作させるよう
になつている。このCR発振器３３には、デユー
テイ比設定器３４、周波数設定器３５が接続され
ており、これにより、デユーテイ比と周波数が設
定されるようになつている。 In this figure 1, from AC100V to the main power supply 31
(constant voltage, constant current) to drive the power transistor drive circuit 32, and
The CR oscillator 33 is operated by AC100V. A duty ratio setter 34 and a frequency setter 35 are connected to this CR oscillator 33, so that the duty ratio and frequency can be set.
CR発振器３３の出力は波形整形回路３６で矩
形波、その各種の波形に波形整形して、スイツチ
３７の固定端子ａに出力するようになつている。
スイツチ３７の固定端子ｂは外部信号入力端子３
８に接続され、可動端子ｃは位相反転器３９に接
続されている。 The output of the CR oscillator 33 is shaped into a rectangular wave and various waveforms by a waveform shaping circuit 36, and outputted to a fixed terminal a of a switch 37.
Fixed terminal b of switch 37 is external signal input terminal 3
8, and the movable terminal c is connected to a phase inverter 39.
位相反転器３９の出力はパワートランジスタド
ライブ回路３２に出力するようにしている。ま
た、このパワートランジスタドライブ回路３２に
は、電流、電圧設定器４０、周波数（カウンタ）
指示計４１に接続されている。 The output of the phase inverter 39 is output to the power transistor drive circuit 32. The power transistor drive circuit 32 also includes a current/voltage setting device 40, a frequency (counter)
It is connected to an indicator 41.
したがつて、パワートランジスタドライブ回路
３２は、位相反転器３９の出力で所定の周波数、
デユーテイ比でかつ所定の波形の交番電力が出力
端子４２に出力され、その電圧、電流は電流、電
圧設定器４０で設定される。そして、出力の周波
数は周波数指示計４１で指示される。出力端子４
２からはたとえば、図示のごとく、低周波矩形交
流励磁電流が出力される。 Therefore, the power transistor drive circuit 32 uses the output of the phase inverter 39 at a predetermined frequency.
Alternating power having a duty ratio and a predetermined waveform is output to an output terminal 42, and its voltage and current are set by a current and voltage setter 40. Then, the frequency of the output is indicated by a frequency indicator 41. Output terminal 4
2 outputs, for example, a low frequency rectangular alternating current excitation current as shown in the figure.
第２図に上記出力端子４２で得られる発生電流
の一例を示す。まず非同期の場合、第２図ａに示
す溶接電流は直流で、第２図ｂの場合、通常の低
周波矩形波交流で、周波数0.5〜20Hz程度まで任
意に変化することが可能である。 FIG. 2 shows an example of the generated current obtained at the output terminal 42. First, in the asynchronous case, the welding current shown in FIG. 2a is a direct current, and in the case of FIG. 2b, it is a normal low frequency rectangular wave alternating current, and the frequency can be arbitrarily changed from about 0.5 to 20 Hz.
また、第２図ｃ、第２図ｄは横向き溶接などに
用いる波形で、デユーテイ比（π／T2）や電流
比（I1／I2）を変化させて磁気攪拌における電磁
力の回転の一方向を強調する場合に用いる。 Figures 2c and 2d are waveforms used for horizontal welding, etc., and the rotation of electromagnetic force in magnetic stirring is controlled by changing the duty ratio (π/T 2 ) and current ratio (I 1 /I 2 ). Used to emphasize one direction.
次に外部同期機能を用いる場合、パルス電流や
オシレーシヨンの信号を外部信号入力端子３８に
入れ、第２図ｅの溶接電流に対して、第２図ｆま
たは第２図ｇに示すように、パルス電流や第２図
ｈに示すようにオシレーシヨンに同期した低周波
矩形波交流を発生させ、パルス電流の振動効果と
磁気攪拌の攪拌効果の重畳により境覚効果を増し
たり、横向き溶接における溶融池保持制御や配管
（パイプ）の裏波溶接の安定化に効果が大きい。 Next, when using the external synchronization function, a pulse current or oscillation signal is input to the external signal input terminal 38, and the pulse current or oscillation signal is inputted to the external signal input terminal 38, and the welding current shown in FIG. By generating a low-frequency rectangular wave alternating current synchronized with the current or oscillation as shown in Figure 2h, the oscillation effect of the pulse current and the stirring effect of magnetic stirring are superimposed to increase the boundary effect and to maintain the molten pool in horizontal welding. It is highly effective in stabilizing control and back welding of piping.
第３図は横向き溶接への適用例を示す。この第
３図では、第７図と同一部分は同一符号で示され
ており、第３図ａに示す直流溶接電流を用いる場
合、溶融金属３を上に持ち上げる力（第３図ｆ、
第３図ｇ）の生じる電流を大にしたり、時間を大
にしてたれ落ちを防止している。 Figure 3 shows an example of application to horizontal welding. In this FIG. 3, the same parts as in FIG. 7 are indicated by the same symbols, and when using the DC welding current shown in FIG.
Dripping is prevented by increasing the current generated in Figure 3g) or by increasing the time.
また、第３図ｂに示すように、溶接電流として
パルス電流を用いる場合、大電流のとき溶融金属
３を持ち上げる方向に同期させることにより、溶
融金属３を多くしてもたれ落ちがなく欠陥のない
高能率高品質横向き溶接が可能となる。 In addition, as shown in Fig. 3b, when a pulse current is used as the welding current, by synchronizing the direction in which the molten metal 3 is lifted when the current is large, the molten metal 3 can be increased without dripping and without defects. High-efficiency, high-quality horizontal welding is possible.
第４図は配管等の裏波溶接への適用例を示す
が、第４図ａに示す溶接電流は直流電流で、同板
厚の場合、第４図ｂに示すオシレーシヨンに同期
して第４図ｃに示す矩形波の励磁電流を流して、
磁気攪拌を行うことにより均一な裏板が安定して
生じる。 Fig. 4 shows an example of application to Uranami welding of piping, etc. The welding current shown in Fig. 4a is a direct current, and in the case of the same plate thickness, the welding current shown in Fig. 4b is By applying the square wave excitation current shown in Figure c,
By performing magnetic stirring, a uniform back plate is stably produced.
次に異厚材の場合、板厚が厚い側で第４図ｄに
示すようにオシレーシヨンの停止時間を設けると
ともに、第４図ｅに示す矩形波の励磁電流を流し
て溶融池を厚板側に流れる方向に磁気攪拌するこ
とにより、第４図ｆに示すように異厚材でも均一
な裏波ビードを形成することが可能となる。 Next, in the case of materials of different thickness, the oscillation is stopped on the thicker side as shown in Figure 4 d, and a rectangular excitation current shown in Figure 4 e is applied to move the molten pool to the thicker plate side. By magnetically stirring in the direction of flow, it is possible to form uniform Uranami beads even in materials with different thicknesses, as shown in FIG. 4F.
なお、この考案の磁気攪拌溶接用励磁コイル駆
動交番電流発生電源装置の仕様例としては以下の
通りである。 An example of the specifications of the exciting coil drive alternating current generating power supply device for magnetic stirring welding of this invention is as follows.
入力電源：AC100V 50/60Hz
出 力：電圧 ０〜±25V
電流 ±10A
周波数 0.5〜20Hz
デユーテイ比 １〜10
外部信号 パルス溶接電流
オシレーシヨン信号などに同期
ただし、励磁コイル１２は1.2φmm×300〜1000
回巻きのものとする。Input power supply: AC100V 50/60Hz Output: Voltage 0 to ±25V Current ±10A Frequency 0.5 to 20Hz Duty ratio 1 to 10 External signal Pulse welding current Synchronized with oscillation signal, etc. However, excitation coil 12 is 1.2φmm x 300 to 1000
It should be rolled up.
以上のように、この考案の磁気攪拌溶接用励磁
コイル駆動交番電流発生電源装置によれば、母材
に流す溶接電流に加えて、溶接中の溶接金属に溶
融池の直上、直下または両側方に設けた励磁コイ
ルに低周波の所定の各種の波長の励磁電流を流し
て交番磁界を発生させ、この交番磁界と溶接電流
により生じるローレンツ力により溶融池を攪拌ま
たは溶融池形状制御を行うようにしたので、各種
波形の励磁電流やパルス電流やオシレーシヨンと
の同期機能により、従来不可能であつた狭開先横
向き溶接の高能率高品質化や配管、同厚材または
異厚材の安定した裏波溶接が可能となるなど、磁
気攪拌法の適用拡大がはかられ、従来にない大き
な効果を有する。
As described above, according to the excitation coil drive alternating current generation power supply device for magnetic stir welding of this invention, in addition to the welding current flowing to the base metal, the welding current is applied to the weld metal during welding directly above, below, or on both sides of the molten pool. An alternating magnetic field is generated by passing excitation current of various predetermined wavelengths at a low frequency through the provided excitation coil, and the molten pool is stirred or the molten pool shape is controlled by the Lorentz force generated by this alternating magnetic field and the welding current. Therefore, by synchronizing with excitation current, pulse current, and oscillation of various waveforms, it is possible to improve the efficiency and quality of horizontal welding in narrow grooves, which was previously impossible, and to achieve stable back welding of piping and materials of the same or different thickness. The application of the magnetic stirring method has been expanded, such as by making welding possible, and it has had greater effects than ever before.
第１図はこの考案の磁気攪拌溶接用励磁コイル
駆動交番電流発生電源装置の一実施例の構成を示
すブロツク図、第２図は同上磁気攪拌溶接用励磁
コイル駆動交番電流発生電源装置の機能および電
流波形例を示す図、第３図は同上磁気攪拌溶接用
励磁コイル駆動交番電流発生電源装置を横向き溶
接への適用例を示す図、第４図は同上磁気攪拌溶
接用励磁コイル駆動交番電流発生電源装置を配管
溶接への適用例を示す図、第５図は従来の磁気攪
拌溶接法の概要を示す図、第６図は従来の磁気攪
拌用励磁電源の構成を示す回路図、第７図は従来
の磁気攪拌用励磁電源による磁気攪拌溶接の動作
原理を示す図である。
１……母材（被溶接材料）、２……溶接金属、
３……溶融金属、４……アーク、５……タングス
テン電極、６……給電チツプ、７……シールドノ
ズル、１２……励磁コイル、１５……磁界、１６
……溶接電流、１７……ローレンツ力、３１……
主電源、３２……パワートランジスタドライブ回
路、３３……CR発振器、３４……デユーテイ比
設定器、３５……周波数設定器、３６……波形成
形器、３８……外部信号入力端子、３９……位相
反転器、４０……電流・電圧設定器、４１……周
波数指示計、４２……出力端子。
Fig. 1 is a block diagram showing the configuration of an embodiment of the excitation coil drive alternating current generation power supply device for magnetic stirring welding of this invention, and Fig. 2 shows the functions and functions of the same excitation coil drive alternating current generation power supply device for magnetic stirring welding. A diagram showing an example of a current waveform. Fig. 3 is a diagram showing an example of application of the excitation coil drive alternating current generation power supply device for magnetic stirring welding as above to horizontal welding. Fig. 4 shows an excitation coil drive alternating current generation for magnetic stirring welding as above. Figure 5 is a diagram showing an overview of the conventional magnetic stirring welding method; Figure 6 is a circuit diagram showing the configuration of a conventional excitation power source for magnetic stirring; Figure 7 is a diagram showing an example of application of the power supply device to pipe welding. 1 is a diagram showing the operating principle of magnetic stirring welding using a conventional excitation power source for magnetic stirring. 1...Base metal (material to be welded), 2...Weld metal,
3... Molten metal, 4... Arc, 5... Tungsten electrode, 6... Power supply chip, 7... Shield nozzle, 12... Excitation coil, 15... Magnetic field, 16
...Welding current, 17...Lorentz force, 31...
Main power supply, 32... Power transistor drive circuit, 33... CR oscillator, 34... Duty ratio setter, 35... Frequency setter, 36... Waveform shaper, 38... External signal input terminal, 39... Phase inverter, 40... Current/voltage setting device, 41... Frequency indicator, 42... Output terminal.
Claims (1)
するための設定器を具備した発振器と、同発振器
の出力を各種の波形に整形するための波形整形器
からなる内部信号発生部と、外部からの信号を切
り換えて入力する位相反転器、さらにパワートラ
ンジスタドライブ回路及び主電源回路からなる磁
気攪拌溶接用励磁コイル駆動交番電流発生電源装
置。 An internal signal generation section consisting of an oscillator equipped with a setting device for setting a predetermined duty ratio and a predetermined frequency, and a waveform shaper for shaping the output of the oscillator into various waveforms, and an external signal generator. An excitation coil drive alternating current generation power supply device for magnetic stirring welding, consisting of a phase inverter for switching input, a power transistor drive circuit, and a main power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985200866U JPH0530857Y2 (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985200866U JPH0530857Y2 (en) | 1985-12-27 | 1985-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62109867U JPS62109867U (en) | 1987-07-13 |
| JPH0530857Y2 true JPH0530857Y2 (en) | 1993-08-06 |
Family
ID=31163784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985200866U Expired - Lifetime JPH0530857Y2 (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530857Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5739077A (en) * | 1980-08-15 | 1982-03-04 | Mitsubishi Heavy Ind Ltd | Arc welding method |
| JPS606276A (en) * | 1983-06-27 | 1985-01-12 | Mitsubishi Heavy Ind Ltd | Welding method of austenitic metal |
-
1985
- 1985-12-27 JP JP1985200866U patent/JPH0530857Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5739077A (en) * | 1980-08-15 | 1982-03-04 | Mitsubishi Heavy Ind Ltd | Arc welding method |
| JPS606276A (en) * | 1983-06-27 | 1985-01-12 | Mitsubishi Heavy Ind Ltd | Welding method of austenitic metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62109867U (en) | 1987-07-13 |
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