CN101036956A - Electrode fused arc welding machine - Google Patents
Electrode fused arc welding machine Download PDFInfo
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
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Abstract
A consumable electrode-type arc welder supplies output between a consumable electrode and an object to be welded by a reactor provided in an output path in a welding power resource. The consumable electrode-type arc welder is provided with: an arc striking circuit which is series-connected with a source side of a switch member and an anode side of a diode, wherein an input terminal of the reactor is connected to the source side of the switch member, and an output terminal of the reactor is connected to a cathode side of the switch member; and an arc striking control circuit which turns on the switch member when a welding start signal is inputted, and by which a large start current is passed between the consumable electrode and the object to be welded in a predetermined time, and then if electrification of the start current is finished, the start current is transfered to a small initial current, the switch membem is turned off when the initial current is passed. Thereby, even if an inductance of the reactor provided in the output path in the welding power resource is a big value, an arc striking performance is good.
Description
Technical field
The present invention relates to electrode fused arc welding machine, relate in particular to the electrode fused arc welding machine of the striking performance when improving the welding beginning.
Background technology
Adopt the striking of the arc welding machine of consumable electrode, with when thing to be welded contacts, produce little electric arc, this little electric arc growth and transfer to stable welding arc at consumable electrode.At this moment, in order successfully to carry out striking, the rate of climb of the starting current in the time of need making striking is very fast.
Fig. 7 is the electrical connection graph of electrode fused arc welding machine that improves the prior art of striking.In the figure, AC power AC adopts single-phase commercial the interchange or the three-phase commercial ac power source.One time rectified current DR1 will be direct current and output from the AC voltage conversion that exchanges power supply AC.Smmothing capacitor C1 carries out smoothly the output of a rectified current DR1.Inverter circuit INV is to export behind the high-frequency pulse voltage with the output transform of smmothing capacitor C1.Transformer INT exports after high-frequency pulse voltage is transformed to the voltage that is suitable for electric arc processes.Secondary rectification circuit DR2 is to export behind the direct current with the output transform of transformer INT.
Super-high-current during reactor DCL restriction short circuiting arc also relaxes the rapid variation of electric current, and the control arc phenomenon is further emitted the energy of accumulating and prevented arc cutting when short circuit when restarting.Controllable silicon SCR is connected the intermediate terminal of anode with reactor DCL, negative electrode is connected conducting when striking with lead-out terminal.
Voltage detecting circuit VD detects weldingvoltage Vw output weldingvoltage detection signal Vd.Voltage error amplifying circuit EV carries out error amplification, output voltage error amplifying signal Ev to voltage setting signal Vr and the weldingvoltage detection signal Vd that is set by voltage setting circuit VR.
Current detection circuit ID detects welding current Iw output welding current detection signal Id.Current error amplifying circuit EI carries out error amplification, output current error amplification signal Ei to current settings signal Ir and the welding current detection signal Id that is set by current setting circuit IR.
Main control circuit SC starts working according to the welding commencing signal Ts from arc welding gun switch TS, based on voltage error amplifying signal Ev and current error amplifying signal Ei output inverter control signal In, Motor Control signal Mc and driving signal Td.
Controllable silicon drive circuit SR will be transformed to controllable silicon SCR from the driving signal Td of main control circuit SC output reliably behind the signal of conducting, and the output controllable silicon drives signal Sr.
1 is welding gun, and 2 is thing to be welded, and 3 is thread delivering roller, and 4 is welding wire (consumable electrode).
Fig. 8 is the oscillogram of the action of the existing electrode fused arc welding machine shown in the key diagram 7.Among this figure, figure (A) expression welding commencing signal Ts, figure (B) expression weldingvoltage detection signal Vd, figure (C) expression welding current detection signal Id, figure (D) expression drives signal Td, figure (E) expression controllable silicon drives signal Sr, the intermediate terminal of figure (F) expression reactor and the voltage between terminals Dv between the lead-out terminal.
In the moment t=t1 shown in Fig. 8 (A), press arc welding gun switch TS, when welding commencing signal Ts became high level, main control circuit SC started working, output inverter control signal In, Motor Control signal Mc and driving signal Td.
Inverter circuit INV according to inverter control signal In work, exports non-load voltage in during moment t=t1～t2 that welding wire 4 contacts with thing 2 to be welded.
Controllable silicon drive circuit SR will be transformed to the controllable silicon SCR driving of the controllable silicon shown in Fig. 8 of conducting (E) signal Sr and output reliably from the driving signal Td of main control circuit SC output.
In moment t=t2, welding wire 4 contacts with thing 2 to be welded.Thyristor SCR drove signal Sr according to the controllable silicon shown in Fig. 8 (E) and was in conducting state this moment, so the intermediate terminal of reactor DCL and lead-out terminal are by reactor element SCR short circuit.In addition, if the inductance value of input terminal and intermediate terminal is made as (L1), the inductance value of intermediate terminal and lead-out terminal is made as (L2), then the position of intermediate terminal is arranged on the point of L1≤L2, if short circuit between the intermediate terminal of reactor DCL and the lead-out terminal, then the inductance value of reactor DCL only is L1, and welding current detection signal Id steeper ground rises shown in Fig. 8 (C).
In addition, because the input terminal of reactor DCL and lead-out terminal and intermediate terminal are wrapped on the same iron core, therefore between lead-out terminal and intermediate terminal, induce alternating voltage by the voltage between intermediate terminal and the lead-out terminal.Therefore, in moment t=t4, shown in Fig. 8 (F), thyristor SCR is reverse biased and automatically is in nonconducting state.
As mentioned above, the following method of improving the striking performance has been proposed: the anode-side of controllable silicon SCR is connected with the intermediate terminal of reactor DCL, the cathode side of controllable silicon SCR is connected with lead-out terminal, when striking, makes the controllable silicon SCR conducting, short-circuit reactance device DCL (for example patent documentation 1).
In electrode fused arc welding machine, the inductance value that is arranged on the reactor on the outgoing route in the source of welding current when striking is bigger, so the rising of striking electric current is slack-off, the striking degradation.In the prior art, in order to improve the striking performance, intermediate terminal is set in reactor, and between the lead-out terminal of reactor and intermediate terminal, be arranged in parallel thyristor, during with striking that thing to be welded contacts, make the thyristor conducting at welding wire, make the intermediate terminal and the lead-out terminal short circuit of reactor, reduce inductance value, the rising of starting current is shifted to an earlier date.
But,, therefore the reverse induction voltage that produces between the intermediate terminal of reactor and the input terminal is joined between the anode, negative electrode of thyristor and cuts off because thyristor can not end voluntarily.Therefore, if the use thyristor, then only short circuit between the intermediate terminal of reactor and the lead-out terminal is owing to the not input terminal of the reactor of short circuit and the influence of the inductance value between the intermediate terminal, the rising of starting current is not talkative fully, the raising of restriction striking performance.
Patent documentation 1: Japanese kokai publication sho 55-36048 communique.
Summary of the invention
At this, in the present invention, provide a kind of electrode fused arc welding machine that can solve above-mentioned problem.
In order to solve above-mentioned problem, the electrode fused arc welding machine of first invention, via the reactor in the outgoing route that is arranged in the source of welding current, to export and supply with between sacrificial electrode and thing to be welded, above-mentioned electrode fused arc welding machine possesses: arc ignition circuit, the source side of its switch element that is connected in series and the anode-side of diode, the input terminal of above-mentioned reactor is connected with the drain side of above-mentioned switch element, and the lead-out terminal of above-mentioned reactor is connected with the cathode side of above-mentioned diode; And arc ignition control circuit, it is when being transfused to the welding commencing signal, make above-mentioned switch element conducting, between above-mentioned consumable electrode and thing to be welded, pass through the starting current of big electric current with preset time, if then the energising of above-mentioned starting current finishes, then carry out the transition to the initial current of little electric current, when above-mentioned initial current is switched on, above-mentioned switch element is ended.
Second invention is characterized in that according to the described electrode fused arc welding machine of first invention, and above-mentioned arc ignition control circuit when the starting current from above-mentioned big electric current carries out the transition to the initial current of above-mentioned little electric current, is set the predetermined down time.
The 3rd invention is according to each described electrode fused arc welding machine in the invention 1～2, it is characterized in that, above-mentioned arc ignition control circuit when the energising of above-mentioned initial current finishes and carry out the transition to than the big stable welding current of above-mentioned initial current, ends above-mentioned switch element.
The invention effect
According to first invention, because the switch element that is connected in parallel between the input terminal of reactor and lead-out terminal makes the switch element conducting when striking, make the reactor short circuit, therefore the inductance value of the reactor during striking diminishes, and the rising edge of starting current becomes precipitous, has improved the striking performance.In addition, owing to when the energising of starting current finishes to pass through the initial current of little electric current, switch element is ended, therefore reduced because switch element by caused surge voltage, prevents the deterioration of switch element.
According to second invention, if when the starting current from big electric current carries out the transition to the initial current of little electric current, further reduce the initial current of little electric current, then have following situation: reactor is by the switch element short circuit, because inductance value reduces, therefore electric current sharply reduces when carrying out the transition to initial current, and the reduction of electric current takes place, and causes arc cutting.But, when starting current carries out the transition to initial current,, starting current is slowly reduced because the predetermined down time is set, the decline of electric current reduces, and successfully carries out the transition from the starting current to the initial current.
According to the 3rd invention, when the transition of the stable welding current bigger than initial current begins, switch element is ended, therefore when inverter circuit is worked with the pulse width of maximum, switch element is ended.The electric current of supplying with by reactor diminishes owing to electric current descends, and prevents arc cutting.
Description of drawings
Fig. 1 is the electrical connection graph of the relevant electrode fused arc welding machine of embodiments of the present invention 1.
Fig. 2 is the details drawing of arc ignition control circuit shown in Figure 1.
Fig. 3 is the oscillogram of the action of explanation embodiment 1.
Fig. 4 is the details drawing of the second relevant arc ignition control circuit of embodiment 2.
Fig. 5 is the oscillogram that is used to illustrate the action of embodiment 2.
Fig. 6 is the electrical connection graph of the relevant electrode fused arc welding machine of embodiment 3.
Fig. 7 is the electrical connection graph of the electrode fused arc welding machine of prior art.
Fig. 8 is the oscillogram of the action of explanation prior art.
Among the figure: the 1-welding gun; The 2-machined object; 3-wire feed motor; The 4-welding wire; The C1-smmothing capacitor; The D1-diode; The D2-protecting diode; The DCL-reactor; Rectification circuit of DR1-; The DR2-secondary rectification circuit; EI-current error amplifying circuit; Ei-current error amplifying signal; EV-voltage error amplifying circuit; Ev-voltage error amplifying signal; The FF-circuits for triggering; FF2-second circuits for triggering; The Ff-triggering signal; Ff2-second triggering signal; The IC-current comparison circuit; IC2-second current comparison circuit; Ic-electric current comparison signal; Ic2-second current comparison circuit; The ID-current detection circuit; The Id-output current detection circuit; The IR-current setting circuit; Ir-current settings signal; IRF-reference current initialization circuit; The IRF2-second reference current initialization circuit; Irf-reference current setting value (signal); Irf2-second reference current setting value (signal); Ir-current settings signal; In-inverter control signal; The INT-transformer; The INV-inverter circuit; INV2-secondary side inverter circuit; The Mc-electromotor control circuit; OR-or logic circuit; The SC-main control circuit; The SE-arc ignition control circuit; SE2-second arc ignition control circuit; Se-striking control signal; The Se2-second striking control signal; The SR-controllable silicon drive circuit; The Sr-controllable silicon drives signal; The ST-arc ignition circuit; The SCR-thyristor; The TM-timing circuit; The Tm-timing signal; The TS-arc welding gun switch; The TR-switch element; Td-drives signal; The VD-voltage detecting circuit; The VR-voltage setting circuit; The Vr-voltage setting signal.
The specific embodiment
(embodiment 1)
Fig. 1 is the electrical connection graph of the relevant electrode fused arc welding machine of embodiments of the present invention 1.In the figure, the structure member with the electrical connection graph same-sign of the electrode fused arc welding machine of the prior art shown in Fig. 6 carries out identical action, therefore omits explanation, only the different component parts of symbol is described.
In the electrical connection graph of electrode fused arc welding machine shown in Figure 1, arc ignition circuit ST forms by switch element (for example IGBT) TR and diode D1, the input terminal of reactor DCL is connected with the drain side of switch element TR, and lead-out terminal is connected with the cathode side of diode D1.In addition, because the backward voltage of switch element (IGBT) is withstand voltage lower, therefore generally protecting diode D2 is arranged on component internal.Only made reactor DCL short circuit or removed short circuit by this switch element TR, to the energy of reactor DCL charging, flow backwards by the protecting diode D2 that is arranged in the switch element when removing short circuit, energy can not fully be recharged.Therefore, by series diode D1 on switch element TR, prevent the refluence of the energy of reactor DCL.
Fig. 2 is the details drawing of arc ignition control circuit SE shown in Figure 1, by flip-flop circuit FF, current comparison circuit IC, reference current initialization circuit IRF, timing circuit TM and or logic circuit OR form.
Current comparison circuit IC compares predetermined reference current setting value Irf and welding current detection signal Id, if than reference current setting value Irf height, then making electric current comparison signal Ic is low level and output.
Circuits for triggering FF is set by the rising edge that drives signal Td, and output is become high level and output, is reset by the rising edge of electric current comparison signal Ic, and output is become low level.At this moment, the driving signal Td as asserts signal be high level during in forbid resetting.
Timing circuit TM is according to the rising edge of triggering signal Ff, the timing signal Tm of export scheduled time.
Fig. 3 is the oscillogram of the action of the relevant electrode fused arc welding machine of explanation embodiments of the present invention 1.In the figure, figure (A) expression welding commencing signal Ts, figure (B) expression drives signal Td, figure (C) expression weldingvoltage detection signal Vd, figure (D) expression welding current detection signal Id, figure (E) expression electric current comparison signal Ic, figure (F) expression triggering signal Ff, figure (J) expression timing signal Tm, figure (H) expression striking control signal Se.
Next, adopt above-mentioned oscillogram, the action of the relevant electrode fused arc welding machine of embodiment 1 is described.Among the moment t=t1 shown in Fig. 3 (A), from arc welding gun switch TS output welding commencing signal Ts and when becoming high level, main control circuit SC starts working according to welding commencing signal Ts, the driving signal Td shown in the output map 3 (B), the illustrated inverter control signal In of omission and Motor Control signal Mc.
Circuits for triggering FF shown in Figure 2 at set terminal input drive signal Td, according to the rising edge that drives signal Td, makes the triggering signal Ff shown in Fig. 3 (F) become high level and outputs to or logic circuit OR.Or logic circuit OR execution or logic and make the striking control signal Se shown in Fig. 3 (H) become high level and output.Se becomes high level if electric arc begins control signal, and arc ignition circuit ST then shown in Figure 1 makes switch element TR conducting, reactor DCL short circuit.
Inverter circuit INV carries out work according to inverter control signal In, in during welding wire 4 and moment t=t1～t2 before thing 2 to be welded contacts, the output non-load voltage, voltage detecting circuit VD detects non-load voltage, the weldingvoltage detection signal Vd shown in the output map 3 (C).
At moment t=t2,, then pass through starting current if welding wire 4 contacts with thing 2 to be welded.This moment, switch element TR was in conducting state by the striking control signal Se shown in Fig. 3 (H), and reactor DCL is by short circuit.Therefore, owing to be not subjected to the influence of the inductance of reactor DCL, starting current sharply rises shown in Fig. 3 (D), therefore is easy to generate electric arc.
Current comparison circuit IC compares reference current setting value Irf and welding current detection signal Id, in moment t=t3, if than reference current setting value Irf height, then judges by starting current, exports after making electric current comparison signal Ic become low level.
In moment t=t4, starting current is restricted to predetermined value (for example about 500A), continue by (for example about 5ms) starting current, next, in moment t=t5, the energising of starting current finishes, when carrying out the transition to the initial current (for example about 50A) of little electric current, reactor DCL, is therefore produced diagram abridged electric current and descends because inductance value diminishes by switch element TR short circuit.At this moment, shown in Fig. 3 (D), if predetermined down time T 1 (about 1ms) is set electric current is slowly reduced, then the decline of electric current change ground is littler, successfully carries out the transition from the starting current to the initial current.Also have,, also can carry out the transition to initial current from starting current even make initial current (for example about 50A) littler.
At moment t=t6, current comparison circuit IC compares reference current setting value Irf and welding current detection signal Id once more, if lower than reference current setting value Irf, then judge and transfer to initial current from starting current, after being become high level, exports electric current comparison signal Ic.In addition, form the front end of the welding wire that blazes up by the starting current of big electric current during moment t=t7～t9, be shaped the finish time during t=t9, the initial current of little electric current carries out the transition to stable welding current.
Circuits for triggering FF imports the electric current comparison signal Ic shown in Fig. 3 (E) in reseting terminal, according to the rising edge of electric current comparison signal Ic the triggering signal Ff shown in Fig. 3 (F) is become low level and output.Next, timing circuit TM is according to the timing signal Tm of the trailing edge export scheduled time of triggering signal Ff.
Or logic circuit OR carries out timing signal Tm or the logic shown in the triggering signal Ff shown in Fig. 3 (F) and Fig. 3 (J), exports after in the moment t=t8 striking control signal Se being become low level.And if striking control signal Se becomes low level, then switch element TR ends, and the short circuit of reactor DCL finishes.At this moment, when passing through the initial current of little electric current, switch element TR is ended,, can prevent the deterioration of switch element therefore by caused surge voltage (surge voltage) step-down.
(embodiment 2)
Fig. 4 is the details drawing of the second relevant arc ignition control circuit SE2 of embodiment 2, in the figure, carry out same action with the structure member of the arc ignition control circuit SE same-sign of embodiment 1 shown in Figure 2, therefore omit explanation, only the different structure member of symbol is described.
The second arc ignition control circuit SE2 shown in Fig. 4, by flip-flop circuit FF, current comparison circuit IC, reference current initialization circuit IRF, the second flip-flop circuit FF2, the second current comparison circuit IC2, the second reference current initialization circuit IRF2 and or logic circuit OR form.
The second current comparison circuit IC2 compares predetermined reference current setting value Irf2 and welding current detection signal Id, if than second reference current setting value Irf2 height, then make the second electric current comparison signal Ic2 become high level and output.
The second circuits for triggering FF2 is set according to the rising edge of triggering signal Ff, and output is become high level and output, is reset according to the rising edge of the second electric current comparison signal Ic2, and output is become low level.At this moment, the triggering signal Ff as asserts signal be high level during in forbid resetting.
Or circuit OR carry out triggering signal Ff and second triggering signal Ff2's or logic, export the second striking control signal Se2.
Fig. 5 is the oscillogram of the action of the relevant electrode fused arc welding machine of explanation embodiment 2.In the figure, figure (A) expression welding commencing signal Ts, figure (B) expression drives signal Td, figure (C) expression weldingvoltage detection signal Vd, figure (D) expression welding current detection signal Id, figure (E) expression electric current comparison signal Ic, figure (F) expression triggering signal Ff, figure (G) the expression second electric current comparison signal Ic2, figure (H) the expression second triggering signal Ff2, figure (I) the expression second striking control signal Se2.
Next, adopt above-mentioned oscillogram, the action of the relevant electrode fused arc welding machine of embodiment 2 is described.In addition, in Fig. 5, carry out the action identical during moment t=t1～t3, therefore omit action specification with the movement oscillogram of embodiment shown in Figure 31.
The second current comparison circuit IC2 compares predetermined second reference current setting value Irf2 and welding current detection signal Id, than the high moment t=t31 of second reference current setting value Irf2, exports after the second electric current comparison signal Ic2 become high level.
At moment t=t4, continue after starting current is restricted to predetermined value.Next, in moment t=t5, finish the energising of starting current, when carrying out the transition to the initial current of little electric current, predetermined down time T 1 is set, and electric current is slowly reduced.
The second current comparison circuit IC2, second reference current setting value Irf2 and welding current detection signal Id are compared, than the low moment t=t51 of second reference current setting value Irf2, the second electric current comparison signal Ic2 shown in Fig. 5 (G) is become low level and output.
At moment t=t6, current comparison circuit IC compares reference current setting value Irf and welding current detection signal Id once more, when lower than reference current setting value Irf, be judged as roughly and carry out the transition to initial current from starting current, electric current comparison signal Ic is become high level and output.
Circuits for triggering FF, input current comparison signal Ic in reseting terminal according to the rising edge of electric current comparison signal Ic, becomes low level and output with the triggering signal Ff shown in Fig. 5 (F).
In moment t=t10, the second current comparison circuit IC2 compares second reference current setting value Irf2 and welding current detection signal Id once more, when higher than second reference current setting value Irf2, be judged as from starting current and transfer to stable initial current, the second electric current comparison signal Ic2 is become high level and output.
The second circuits for triggering FF2, the input second electric current comparison signal Ic2 in reseting terminal according to the rising edge of the second electric current comparison signal Ic2, becomes low level and output with the second triggering signal Ff2 shown in Fig. 5 (H).Or logic circuit OR carries out second triggering signal Ff2 or the logic shown in the triggering signal Ff shown in Fig. 5 (F) and Fig. 5 (H), the second striking control signal Se become low level and output in moment t=t10.
When carrying out the transition to than the big stable welding current of initial current, in order to increase correspondingly with the rapid electric current of welding current, main control circuit SC makes inverter circuit INV move with maximum pulse.At this moment, if switch element TR is ended, then when inverter circuit INV moves with maximum pulse, switch element TR is cut off, should be replenished via the rapid electric current of supplying with by reactor that is situated between by the decline of caused electric current, thereby the decline of electric current diminishes, and prevents the caused arc cutting that ends of switch element TR.
(embodiment 3)
Fig. 6 is the electrical connection graph that carries out the electrode fused arc welding machine of AC pulse MIG welding.In the figure, carry out same action, therefore omit explanation, only the different structure member of symbol is described with the structure member of the electrical connection graph same-sign of the electrode fused arc welding machine of embodiment of the present invention 1 shown in Figure 1.
Secondary side inverter circuit INV2 shown in Figure 6 is arranged on the outlet side of reactor DCL, make by secondary rectification circuit DR2 and reactor DCL and smoothly (for example 50～200Hz) work, produce alternating current arc with the necessary low frequency of AC pulse MIG for the output of direct current.
Remove other circuit structures outside the secondary side inverter circuit INV2 shown in above, the electrical connection graph structure of the electrode fused arc welding machine relevant with embodiment shown in Figure 11 is identical.Therefore, the mechanism that make switch element conducting, reactor short circuit during striking of the present invention, makes starting current sharply rise, carry out striking also is effective starter mechanism in the electrode fused arc welding machine that carries out the AC pulse MIG welding.
Claims (3)
1, a kind of electrode fused arc welding machine by being arranged on the reactor in the outgoing route in the source of welding current, will being exported and supply with between sacrificial electrode and thing to be welded,
Above-mentioned electrode fused arc welding machine possesses:
Arc ignition circuit, the source side of its switch element that is connected in series and the anode-side of diode, the input terminal of above-mentioned reactor is connected with the drain side of above-mentioned switch element, and the lead-out terminal of above-mentioned reactor is connected with the cathode side of above-mentioned diode; With
Arc ignition control circuit, it is when being transfused to the welding commencing signal, make above-mentioned switch element conducting, between above-mentioned consumable electrode and thing to be welded, pass through the starting current of big electric current with preset time, then, if the energising of above-mentioned starting current finishes, then carry out the transition to the initial current of little electric current, by above-mentioned initial current the time, above-mentioned switch element is ended.
2, electrode fused arc welding machine according to claim 1 is characterized in that,
Above-mentioned arc ignition control circuit when the starting current from above-mentioned big electric current carries out the transition to the initial current of above-mentioned little electric current, is set with the predetermined down time.
3, according to each described electrode fused arc welding machine in the claim 1～2, it is characterized in that,
Above-mentioned arc ignition control circuit when the energising of above-mentioned initial current finishes and carry out the transition to than the big stable welding current of above-mentioned initial current, ends above-mentioned switch element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-071950 | 2006-03-16 | ||
| JP2006071950 | 2006-03-16 | ||
| JP2006071950A JP4879618B2 (en) | 2006-03-16 | 2006-03-16 | Consumable electrode arc welding machine. |
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| CN101036956A true CN101036956A (en) | 2007-09-19 |
| CN101036956B CN101036956B (en) | 2011-04-13 |
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| CN2007100847107A Expired - Fee Related CN101036956B (en) | 2006-03-16 | 2007-02-26 | Electrode fused arc welding machine |
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| CN108555420A (en) * | 2018-03-12 | 2018-09-21 | 上海威特力焊接设备制造股份有限公司 | Arc ignition circuit for argon arc welding machine |
| CN111545875A (en) * | 2020-05-15 | 2020-08-18 | 唐山松下产业机器有限公司 | Consumable electrode pulse gas shielded welding machine, energy control device and energy control method |
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| JP6307341B2 (en) * | 2014-05-01 | 2018-04-04 | 株式会社ダイヘン | Welding power supply device and control method for welding power supply device |
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| GB1332378A (en) * | 1972-02-18 | 1973-10-03 | Aids Electronic Ltd | Method and apparatus for depositing one metal upon another metal by a discontinuous arc process |
| JPS6316863A (en) * | 1986-07-10 | 1988-01-23 | Matsushita Electric Ind Co Ltd | Consumable electrode type arc welding machine |
| CN2066785U (en) * | 1990-01-10 | 1990-12-05 | 浙江省东海电焊机厂 | Ac/dc electric welding machine |
| CN2129664Y (en) * | 1992-06-25 | 1993-04-14 | 王德乾 | Arc strike separate dc arc welder |
-
2006
- 2006-03-16 JP JP2006071950A patent/JP4879618B2/en active Active
-
2007
- 2007-02-26 CN CN2007100847107A patent/CN101036956B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683700A (en) * | 2008-09-25 | 2010-03-31 | 株式会社大亨 | Ac electric arc welding machine |
| CN101683700B (en) * | 2008-09-25 | 2014-12-31 | 株式会社大亨 | Ac electric arc welding machine |
| CN108555420A (en) * | 2018-03-12 | 2018-09-21 | 上海威特力焊接设备制造股份有限公司 | Arc ignition circuit for argon arc welding machine |
| CN108555420B (en) * | 2018-03-12 | 2024-04-26 | 上海威特力焊接设备制造股份有限公司 | Arc striking circuit for argon arc welding machine |
| CN111545875A (en) * | 2020-05-15 | 2020-08-18 | 唐山松下产业机器有限公司 | Consumable electrode pulse gas shielded welding machine, energy control device and energy control method |
| CN111545875B (en) * | 2020-05-15 | 2021-11-09 | 唐山松下产业机器有限公司 | Consumable electrode pulse gas shielded welding machine, energy control device and energy control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007245190A (en) | 2007-09-27 |
| JP4879618B2 (en) | 2012-02-22 |
| CN101036956B (en) | 2011-04-13 |
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