CN106735746A - Gas-shielded welder - Google Patents
Gas-shielded welder Download PDFInfo
- Publication number
- CN106735746A CN106735746A CN201611251212.2A CN201611251212A CN106735746A CN 106735746 A CN106735746 A CN 106735746A CN 201611251212 A CN201611251212 A CN 201611251212A CN 106735746 A CN106735746 A CN 106735746A
- Authority
- CN
- China
- Prior art keywords
- circuit
- gas
- rectification
- welding machine
- wire feed
- 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
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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
-
- 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
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The invention discloses a kind of gas-shielded welder, it includes control circuit, inverter circuit, main transformer, welding machine rectification circuit, welding machine arc electrode, rectification speed governing rectification circuit, wire feeding motor, current feedback circuit；Inverter circuit exports rectangular pulse waveform to main transformer armature winding；The input of welding machine rectification circuit connects main transformer welding machine secondary windings, exports welder arc electrodes；The input of rectification alignment circuit connects main transformer auxiliary secondary winding, and output connects wire feeding motor；Current feedback circuit is used to gather the electric current of welding machine arc electrode；In crawl wire feed state, if the electric current of welding machine arc electrode is more than setting value, control circuit enters false touch guard mode, and it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit to stop.Gas-shielded welder of the invention, can ensure on the premise of additionally power supply is not increased for wire feeding motor wire feeding motor can quick smooth wire feed, be prevented from welding wire again and stick together when workpiece is contactd by mistake.
Description
Technical field
The present invention relates to electric welding machine technology, more particularly to a kind of gas-shielded welder.
Background technology
Gas-shielded welder (cogas protective welder) without welding rod welding wire, with CO2, CO2 and argon gas gaseous mixture
Body, CO2 and helium mix gas do protective gas, and including the part such as power supply, wire feeding motor, gas shield welding welding current is exportable
Rectangular pulse waveform, reaches spray transfer, it is easy to all-position welding.Direct current gas-shielded welder electric current transition regime is AC-DC-AC-
DC.Crawl wire feed is in gas shield welding before welding, welding wire to be quickly sent to a kind of feeding method of welding gun mouthful by wire feed rolls.It is existing
Some crawl wire feed implementations have two kinds：
The first is as shown in figure 1, outside the major loop of welding machine, another one power of increase is about the control transformer of 150W
Make wire feed electromechanical source, by, for wire feeding motor is powered, crawl wire feed process can be with welding machine master after industrial 380V normal voltages transformation
Loop is completely separable individually operated.This kind of crawl wire feeding mode has advantages below：(1) when crawl wire feed, major loop
Without output, can effectively prevent welding wire and absorption surface moment from producing adhesion；(2) when crawl wire feed, can be by gas
Closing avoids wasting gas；(3) without specially adjusting wire feed rate when crawl wire feed and normal weld mutually switch.But this kind
Wire feeding mode, it is relatively costly due to needing extra increase by control transformer.
Second on welding machine main transformer as shown in Fig. 2 directly increase an assists winding, the assists winding is used as to send
Silk electromechanical source.Because general gas flow protection weldering output power of power supply is all in more than 5KW, and wire feed acc power only has 150W or so,
So the assists winding does not almost influence as wire feed electromechanical source on main transformer, the welding machine major loop during crawl wire feed
Equally there is output.This kind of crawl wire feeding mode, without individually addition control transformer, cost is relatively low, but exists following for wire-feed motor
Shortcoming：(1) due to during wire feed major loop have output, may make welding wire and workpiece adhesion after welding wire contact workpiece；(2) point
Gas can be produced to waste during dynamic wire feed；(3) due to it is generally desirable to crawl wire feed rate faster, so crawl wire feed and normal
Welding needs specially to adjust wire feed rate.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of gas-shielded welder, can be not additionally for wire feeding motor increases
Ensure on the premise of power supply wire feeding motor can quick smooth wire feed, be prevented from welding wire again and occur when workpiece is contactd by mistake
Adhesion.
In order to solve the above technical problems, the gas-shielded welder that the present invention is provided, it includes control circuit, inverter circuit, main transformer
Depressor, welding machine rectification circuit, welding machine arc electrode, rectification speed governing current circuit, wire feeding motor, current feedback circuit；
The inverter circuit, input termination DC voltage, output end output rectangular pulse waveform to main transformer primary around
Group；
The output welder rectification circuit of main transformer welding machine secondary windings；
The output welder arc electrodes of welding machine rectification circuit；
The output of main transformer auxiliary secondary winding connects rectification alignment circuit；
The output of rectification alignment circuit connects wire feeding motor；
The current feedback circuit, the electric current for gathering welding machine arc electrode；
The control circuit, in crawl wire feed state, it is welding machine arc electrode and rectification speed governing electricity to control inverter circuit
Road powers, and control rectification alignment circuit export make wire feeding motor rotating speed be crawl wire feed rotating speed；
The control circuit, in welded condition, it is that welding machine arc electrode and rectification alignment circuit are supplied to control inverter circuit
Electricity, and controlling speed governing rectification circuit to export makes the rotating speed of wire feeding motor be welding wire feed rotating speed；
The control circuit, in crawl wire feed state, if the electric current of welding machine arc electrode is more than setting value, enters
False touch guard mode, it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit to stop.
Preferably, the control circuit, controls air valve to close in crawl wire feed state and false touch guard mode, make welding gun
Nozzle stops spray protection gas；Air valve conducting is controlled in welded condition, torch neck is sprayed protection gas.
Preferably, the gas-shielded welder also includes current rectifying and wave filtering circuit；
The entire filter wave circuit input termination electric main, output DC voltage to the inverter circuit.
Preferably, the gas-shielded welder also includes switching switch, machine initial arc switch；
When switching switch is for first state, the control circuit enters crawl wire feed state；
When switching switch is for the second state and machine initial arc switch closure, into welded condition.
Preferably, when switching switch is for the second state and disconnected machine initial arc switch, the control circuit enters welding
Readiness.
Preferably, the control circuit, when readiness is welded, it is welding machine arc electrode and rectification to control inverter circuit
Alignment circuit is powered, and controls speed governing rectification circuit to stop as wire feeding motor is powered.
Preferably, the control circuit, in welded condition, if machine initial arc is switched off, enters welding and prepares
State.
Preferably, the control circuit, when readiness is welded, control torch neck stops spray protection gas.
Preferably, gas-shielded welder also includes braking circuit；
The control circuit, controls the braking circuit to connect wire feeding motor when false touch guard mode is entered.
Preferably, welding wire feed rotating speed is less than crawl wire feed rotating speed；
Gas-shielded welder of the invention, adds an auxiliary secondary winding as wire feeding motor electricity in main transformer secondary
Source, and increase by a current feedback circuit for gathering welding machine arc electrode current.In crawl wire feed state, control circuit control is adjusted
Fast rectification circuit output makes the crawl wire feed rotating speed that the rotating speed of wire feeding motor is high speed；In welded condition, control circuit control
The output of rectification alignment circuit makes the rotating speed of wire feeding motor for the welding wire feed rotating speed of low speed；In crawl wire feed state, if weldering
The electric current of machine arc electrodes is more than setting value, then into false touch guard mode, control inverter circuit to stop as welding machine arc electrode
And speed governing rectification circuit is powered, welding machine secondary windings and auxiliary secondary winding are powered off simultaneously, and welding machine arc electrode is without electricity, wire feed electricity
Machine stops operating, and crawl wire feed terminates.Gas-shielded welder of the invention, under crawl wire feed state, control circuit sends and properly accounts for
The pwm signal of empty ratio gives rectification alignment circuit, controls the quick wire feed of wire feeding motor；When welding wire and the moment of absorption surface, welding machine
Arc electrodes have electric current to flow through, and because the size of current of current feedback signal and welding machine arc electrode is proportional, work as crawl
When welding machine arc electrode has larger current to export under wire feed state, welding wire and workpiece hair during control circuit judges crawl wire feed
Life is contactd by mistake, and automatically into false touch guard mode, it is that welding machine arc electrode and speed governing rectification circuit are supplied to control inverter circuit to stop
Electricity, thus can ensure on the premise of additionally power supply is not increased for wire feeding motor wire feeding motor can quick smooth wire feed, and
It is prevented from welding wire and sticks together when workpiece is contactd by mistake.
Brief description of the drawings
Fig. 1 is a kind of crawl wire feed implementation schematic diagram of existing gas-shielded welder；
Fig. 2 is existing gas-shielded welder another kind crawl wire feed implementation schematic diagram；
Fig. 3 is the embodiment schematic diagram of gas-shielded welder of the invention.
Specific embodiment
Clearly complete description is carried out to the technical scheme in the present invention below in conjunction with accompanying drawing, it is clear that described reality
It is a part of embodiment of the invention to apply example, rather than whole embodiments.Based on the embodiment in the present invention, the skill of this area
All other embodiment that art personnel are obtained on the premise of creative work is not made belongs to the model of present invention protection
Enclose.
Embodiment one
As shown in figure 3, gas-shielded welder includes control circuit, inverter circuit, main transformer, welding machine rectification circuit, welding machine electricity
Arc electrode, rectification alignment circuit, wire feeding motor, current feedback circuit；
The inverter circuit, input termination DC voltage, output end output rectangular pulse waveform to main transformer primary around
Group；
The output welder rectification circuit of main transformer welding machine secondary windings；
The output welder arc electrodes of welding machine rectification circuit；
The output of main transformer auxiliary secondary winding connects rectification alignment circuit；
The output of speed governing rectification circuit connects wire feeding motor；
The current feedback circuit, the electric current for gathering welding machine arc electrode；
The control circuit, in crawl wire feed state, it is welding machine arc electrode and speed governing rectified current to control inverter circuit
Road powers, and control rectification alignment circuit export make wire feeding motor rotating speed be crawl wire feed rotating speed；
The control circuit, in welded condition, it is that welding machine arc electrode and rectification alignment circuit are supplied to control inverter circuit
Electricity, and controlling rectification alignment circuit to export makes the rotating speed of wire feeding motor be welding wire feed rotating speed；
The control circuit, in crawl wire feed state, if the electric current of welding machine arc electrode is more than setting value, enters
False touch guard mode, it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit to stop.
Preferably, the control circuit, controls air valve to close in crawl wire feed state and false touch guard mode, make welding gun
Nozzle stops spray protection gas；Air valve conducting is controlled in welded condition, torch neck is sprayed protection gas.
Preferably, the gas-shielded welder also includes current rectifying and wave filtering circuit；
The entire filter wave circuit input termination electric main, output DC voltage to the inverter circuit.
Preferably, welding wire feed rotating speed is less than crawl wire feed rotating speed.
The gas-shielded welder of embodiment one, adds an auxiliary secondary winding as wire feeding motor electricity in main transformer secondary
Source, and increase by a current feedback circuit for gathering welding machine arc electrode current.In crawl wire feed state, control circuit control is whole
Stream alignment circuit output makes the crawl wire feed rotating speed that the rotating speed of wire feeding motor is high speed；In welded condition, control circuit control
The output of speed governing rectification circuit makes the rotating speed of wire feeding motor for the welding wire feed rotating speed of low speed；In crawl wire feed state, if weldering
The electric current of machine arc electrodes is more than setting value, then into false touch guard mode, control inverter circuit to stop as welding machine arc electrode
And rectification alignment circuit is powered, welding machine secondary windings and auxiliary secondary winding are powered off simultaneously, and welding machine arc electrode is without electricity, wire feed electricity
Machine stops operating, and crawl wire feed terminates.
The gas-shielded welder of embodiment one, under crawl wire feed state, control circuit send suitable duty ratio pwm signal to
Rectification alignment circuit, controls the quick wire feed of wire feeding motor；When welding wire and the moment of absorption surface, welding machine arc electrode has electric current stream
Cross, because the size of current of current feedback signal and welding machine arc electrode is proportional, when welding machine electricity under crawl wire feed state
When arc electrode has larger current to export, welding wire and workpiece are contactd by mistake during control circuit judges crawl wire feed, are entered automatically
Enter false touch guard mode, it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit to stop, so that can be not
Ensure on the premise of additionally increasing power supply for wire feeding motor wire feeding motor can quick smooth wire feed, welding wire and work are prevented from again
Sticked together when part is contactd by mistake.
Embodiment two
Based on embodiment one, the gas-shielded welder also includes switching switch, machine initial arc switch；
When switching switch is for first state, the control circuit enters crawl wire feed state；
When switching switch is for the second state and machine initial arc switch closure, into welded condition.
Preferably, when switching switch is for the second state and disconnected machine initial arc switch, the control circuit enters welding
Readiness.
Preferably, the control circuit, when readiness is welded, it is welding machine arc electrode and rectification to control inverter circuit
Alignment circuit is powered, and controls rectification alignment circuit to stop as wire feeding motor is powered.
Preferably, the control circuit, in welded condition, if machine initial arc is switched off, enters welding and prepares
State.
Preferably, the control circuit, when readiness is welded, control torch neck stops jet.
The gas-shielded welder of embodiment two, the opening and closing switched by switching switch, machine initial arc makes control circuit enter crawl
Wire feed state, welded condition or welding readiness, both can guarantee that crawl wire feed and normal weld were independent of each other, and be prevented from again
Welding wire and workpiece stick together when contacing by mistake.
Embodiment three
Based on embodiment one, gas-shielded welder also includes braking circuit；
The control circuit, controls the braking circuit to connect wire feeding motor when false touch guard mode is entered.
The crawl wire feeder of embodiment three, controls the braking circuit to connect wire feed electricity when false touch guard mode is entered
Machine, makes wire feeding motor quickly stop operating.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (10)
1. a kind of gas-shielded welder, it is characterised in that including control circuit, inverter circuit, main transformer, welding machine rectification circuit, weldering
Machine arc electrodes, rectification alignment circuit, wire feeding motor, current feedback circuit；
The inverter circuit, input termination DC voltage, output end exports rectangular pulse waveform to main transformer armature winding；
The output welder rectification circuit of main transformer welding machine secondary windings；
The output welder arc electrodes of welding machine rectification circuit；
The output of main transformer auxiliary secondary winding connects rectification alignment circuit；
The output of rectification alignment circuit connects wire feeding motor；
The current feedback circuit, the electric current for gathering welding machine arc electrode；
The control circuit, in crawl wire feed state, it is that welding machine arc electrode and rectification alignment circuit are supplied to control inverter circuit
Electricity, and control rectification alignment circuit export make wire feeding motor rotating speed be crawl wire feed rotating speed；
The control circuit, in welded condition, it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit, and
Controlling rectification alignment circuit to export makes the rotating speed of wire feeding motor to weld wire feed rotating speed；
The control circuit, in crawl wire feed state, if the electric current of welding machine arc electrode is more than setting value, into false touch
Guard mode, it is that welding machine arc electrode and rectification alignment circuit are powered to control inverter circuit to stop.
2. gas-shielded welder according to claim 1, it is characterised in that
The control circuit, controls air valve to close in crawl wire feed state and false touch guard mode, torch neck is stopped spray
Protection gas；Air valve conducting is controlled in welded condition, torch neck is sprayed protection gas.
3. gas-shielded welder according to claim 1, it is characterised in that
The gas-shielded welder also includes current rectifying and wave filtering circuit；
The entire filter wave circuit input termination electric main, output DC voltage to the inverter circuit.
4. gas-shielded welder according to claim 1, it is characterised in that
The gas-shielded welder also includes switching switch, machine initial arc switch；
When switching switch is for first state, the control circuit enters crawl wire feed state；
When switching switch is for the second state and machine initial arc switch closure, into welded condition.
5. gas-shielded welder according to claim 4, it is characterised in that
When switching switch is for the second state and disconnected machine initial arc switch, the control circuit enters welding readiness.
6. gas-shielded welder according to claim 5, it is characterised in that
The control circuit, when readiness is welded, it is that welding machine arc electrode and speed governing rectification circuit are supplied to control inverter circuit
Electricity, and control speed governing rectification circuit to stop as wire feeding motor is powered.
7. gas-shielded welder according to claim 4, it is characterised in that
The control circuit, in welded condition, if machine initial arc is switched off, enters welding readiness.
8. the gas-shielded welder according to claim 5 or 7, it is characterised in that
The control circuit, when readiness is welded, control torch neck stops spray protection gas.
9. gas-shielded welder according to claim 1, it is characterised in that
Gas-shielded welder also includes braking circuit；
The control circuit, controls the braking circuit to connect wire feeding motor when false touch guard mode is entered.
10. gas-shielded welder according to claim 1, it is characterised in that
Welding wire feed rotating speed is less than crawl wire feed rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251212.2A CN106735746A (en) | 2016-12-29 | 2016-12-29 | Gas-shielded welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251212.2A CN106735746A (en) | 2016-12-29 | 2016-12-29 | Gas-shielded welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106735746A true CN106735746A (en) | 2017-05-31 |
Family
ID=58928109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611251212.2A Pending CN106735746A (en) | 2016-12-29 | 2016-12-29 | Gas-shielded welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735746A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356381A (en) * | 2017-12-29 | 2018-08-03 | 上海广为焊接设备有限公司 | Electric welding machine wire feed system and method |
| CN109128442A (en) * | 2018-08-24 | 2019-01-04 | 上海沪工焊接集团股份有限公司 | A kind of wire feed automatic cut-off system and its method |
| CN109202216A (en) * | 2018-09-28 | 2019-01-15 | 上海通用重工集团有限公司 | Alternating-current pulse argon arc welding machine |
| CN109202217A (en) * | 2018-09-28 | 2019-01-15 | 上海通用重工集团有限公司 | Convenient for the gas-shielded welder of the starting the arc |
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2311185A1 (en) * | 1999-08-13 | 2001-02-13 | Illinois Tool Works Inc. | Thermistor protection for a wire feed motor |
| CA2454811A1 (en) * | 2003-03-07 | 2004-09-07 | Illinois Tool Works Inc. | Automatic wire feed control for a welding system |
| CN101356038A (en) * | 2006-10-27 | 2009-01-28 | 松下电器产业株式会社 | Automatic welding device |
| CN201735932U (en) * | 2010-09-21 | 2011-02-09 | 深圳市华意隆实业发展有限公司 | Inverter type arc-welding machine with anti-sticking function and sticking arc lifting function |
| CN202388102U (en) * | 2011-12-08 | 2012-08-22 | 南通三九焊接机器制造有限公司 | Automatic stop circuit for welding wire in place |
| CN204735827U (en) * | 2015-07-16 | 2015-11-04 | 浙江肯得机电股份有限公司 | Structure of two welding function single tube IGBT contravariant welding machines |
| CN105171189A (en) * | 2015-09-30 | 2015-12-23 | 深圳华意隆电气股份有限公司 | Welding device for inverse type soft switch |
| CN206464675U (en) * | 2016-12-29 | 2017-09-05 | 上海通用重工集团有限公司 | Gas-shielded welder |
-
2016
- 2016-12-29 CN CN201611251212.2A patent/CN106735746A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2311185A1 (en) * | 1999-08-13 | 2001-02-13 | Illinois Tool Works Inc. | Thermistor protection for a wire feed motor |
| CA2454811A1 (en) * | 2003-03-07 | 2004-09-07 | Illinois Tool Works Inc. | Automatic wire feed control for a welding system |
| CN101356038A (en) * | 2006-10-27 | 2009-01-28 | 松下电器产业株式会社 | Automatic welding device |
| CN201735932U (en) * | 2010-09-21 | 2011-02-09 | 深圳市华意隆实业发展有限公司 | Inverter type arc-welding machine with anti-sticking function and sticking arc lifting function |
| CN202388102U (en) * | 2011-12-08 | 2012-08-22 | 南通三九焊接机器制造有限公司 | Automatic stop circuit for welding wire in place |
| CN204735827U (en) * | 2015-07-16 | 2015-11-04 | 浙江肯得机电股份有限公司 | Structure of two welding function single tube IGBT contravariant welding machines |
| CN105171189A (en) * | 2015-09-30 | 2015-12-23 | 深圳华意隆电气股份有限公司 | Welding device for inverse type soft switch |
| CN206464675U (en) * | 2016-12-29 | 2017-09-05 | 上海通用重工集团有限公司 | Gas-shielded welder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356381A (en) * | 2017-12-29 | 2018-08-03 | 上海广为焊接设备有限公司 | Electric welding machine wire feed system and method |
| CN109128442A (en) * | 2018-08-24 | 2019-01-04 | 上海沪工焊接集团股份有限公司 | A kind of wire feed automatic cut-off system and its method |
| CN109202216A (en) * | 2018-09-28 | 2019-01-15 | 上海通用重工集团有限公司 | Alternating-current pulse argon arc welding machine |
| CN109202217A (en) * | 2018-09-28 | 2019-01-15 | 上海通用重工集团有限公司 | Convenient for the gas-shielded welder of the starting the arc |
| CN109202216B (en) * | 2018-09-28 | 2021-03-05 | 上海通用重工集团有限公司 | AC pulse argon arc welding machine |
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735746A (en) | Gas-shielded welder | |
| CN101524781B (en) | AC arc welding system and method thereof | |
| CN103692056B (en) | Multifunctional digital ripple control arc welding inverter | |
| US20040245232A1 (en) | Wire feeder operable with lower mininum input voltage requirement | |
| CN108057942A (en) | A kind of short circuiting arc welding method and system | |
| US9107283B2 (en) | Method for magnetic control of plasma arc | |
| CN102958636A (en) | Welding device with integral user interface | |
| CN201493592U (en) | Alternating current electric arc welding system | |
| CN206464675U (en) | Gas-shielded welder | |
| CN107598339A (en) | Multi-functional inverter type welder system with double pi regulators | |
| CN104096947B (en) | Carbon dioxide gas shielded welding machine and employing digit pulse control the method for striking | |
| CN103028815B (en) | A kind of arc length adjustment system of coupled arc and control method thereof | |
| CN108637434A (en) | Gas-shielded welder intelligence low spatter FASW control systems and method | |
| US20200217140A1 (en) | Multi-path combined high-low voltage plasma drilling power source and drilling system | |
| CN202028854U (en) | Arc striking device of TIG (Tungsten Inert Gas) welding and ion cutting machine | |
| US11845149B2 (en) | Power supply and method for dual process welding | |
| CN201776554U (en) | Plasma arc striking device | |
| CN205324949U (en) | Semi -automatic argon arc welding machine | |
| CN204195048U (en) | Integration hand-held plasma melting coating equipment | |
| CN106513957A (en) | Air plasma cutter | |
| JPH05245634A (en) | Method and device for reigniting arc in shielding gas welding process | |
| CN207806844U (en) | A kind of non-contact arc ignition circuit and argon arc welding machine | |
| CN111889855A (en) | Cutter drive circuit, cutter control device and plasma cutting machine | |
| CN209588065U (en) | A kind of flame projector spray head of adjustable spray angle | |
| CN105583495B (en) | It is a kind of adapt to CC/CV Arc Welding Powers without control wire bonding wire feed system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |