CN1158777A - Splash-reducing carbon dioxide arc welder - Google Patents
Splash-reducing carbon dioxide arc welder Download PDFInfo
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- CN1158777A CN1158777A CN 96102163 CN96102163A CN1158777A CN 1158777 A CN1158777 A CN 1158777A CN 96102163 CN96102163 CN 96102163 CN 96102163 A CN96102163 A CN 96102163A CN 1158777 A CN1158777 A CN 1158777A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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Abstract
The present invention aims at reducing splash in carbon dioxide-pretected welding. Based on the feature that during the pulsed welded wire feeding the welded wire is pushed to molten bath for transition, the present invention reduces the current during melting dropping transition period so that melting dropping always occurs in small current period. Without need to cut off power source according to arc state, the said splash-controlling method results in simple and effective control process. The said control method can control both short-circuit transition and non-short-circuit transition, thus it is esp suitable for large-current and high-voltage welding.
Description
The invention belongs to welding equipment, be mainly used in CO 2 gas-shielded automatic and semi-automatic welding.
In the carbon dioxide welding, splashing is a stinking problem.Splash in order to reduce, for many years, people have found out various ways.Wherein most importantly reduce arc voltage, make arc length short as much as possible, make molten drop have more opportunity to carry out the transition in the molten bath and go in the mode of short circuit.But too short electric arc makes the mother metal deficiency of being heated, and appearance of weld is bad, and is narrow and high.When needs weld with big electric current, in order to obtain suitable appearance of weld, must use higher voltage, at this moment splashing tends to reach the degree that is difficult to tolerate.Therefore, generally speaking, CO
2Welding is limited to the purposes of little electric current, low-voltage, welding thin plate more.
Studies show that CO
2Splashing during welding mainly occurs in the moment of two danger of short circuiting transfer: molten drop rigidly connects the ending that the beginning of touching the molten bath and electric arc will soon ignite again.Soviet Union's " weldering automatically " magazine 88.12 salads are husband (CAPAEB) " CO also
2The control of short circuit weldering droplet transfer " literary composition described various minimizing CO in detail
2The method of spatter.Wen Zhongke sees that the common feature of all methods all is a discharge-induced explosion energy of managing to reduce these two dangerous moments.Its way is just to have begun and will finish two moments in short circuit electric current is reduced, and only allows bigger short circuit current in the short circuit interstage, to guarantee enough electromagnetic contractile forces, impels the molten drop liquid metal to carry out the transition in the molten bath rapidly and goes.In order to achieve the above object, need carry out continuous detection to the welding conditions at the arc, and switch apace, electric current is changed rapidly in moment accurately.Consider CO
2Molten drop transition frequency is very high irregular again in the welding, and whole short circuit process is lasted only some milliseconds, therefore will measure above-mentioned two dangerous moments exactly and also enough react apace, needs very complicated control panel, and also often can not prove effective fully.And do not cause the molten drop of short circuit to be at a complete loss as to what to do especially for those.
Pulsed wire feeding appear as CO
2Welding control is splashed new possibility is provided.
The motion of welding wire is that one of pulsation send one to stop in pulsed wire feeding, and is constant in constant-speed wire-feeding.The welding wire of pulsation moves to a kind of new transition power of welding wire.Do not need electromagnetic contractile force as motive force during short circuit.Even not short circuit also can rush in the molten bath on one's own initiative and go.So just might detect conditions at the arc exactly, and, all the time electric current be remained on low value, then keep big electric current at other times as long as in a period of time before and after the molten drop generation transition.Do to guarantee that the droplet transfer process must occur between little Current Zone like this, both simplified control device widely, improved the significant degree of control again.Not only can control short circuiting transfer, also can be used for non-short circuiting transfer, therefore be particularly suitable for the high-tension welding of big electric current.
In the general pulsed wire feeding, in order to guarantee chuck clamping welding wire reliably, thereby guaranteeing that welding wire sends to reliably, all is to make drive dog do straight reciprocating motion to fixed retaining chuck.Soviet Union's " weldering automatically " magazine 80.1 Fu Luobayi (BOPOIIAM) " electromagnetic mechanism of pulsed wire feeding " selected works have been selected electromagnet as sending power to, and chuck is placed on the middle part of wire-feed motor.When wire-feeder resistance changes, the distance that electromagnet is sent welding wire to will change, and cause the electric arc shakiness.And in the wire feed process inevitably iron end copper scale and greasy dirt be easy to chuck is stopped up, make chuck clamping welding wire reliably.Welding wire skids, the wire feed shakiness, and chuck is quick-wearing very also.Exactly because these reasons, pulsed wire feeding is not widely used aborning.
The present invention proposes a kind of pulsating solder wire feeder that makes drive dog make approximate straight line motion, thereby can use the simple and reliable crank rocker quadric chain by the direct drive of motor to send welding wire to.Chuck is opening, even have iron end copper scale and greasy dirt also can be dished out, does not stop up chuck, thereby has guaranteed that chuck is worked stably in a long term and the stability of wire feed.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is CO
2Solder shorts transient process figure.
Fig. 2 is t among Fig. 1
aThe moment figure that splashes.
Fig. 3 is t among Fig. 1
bThe moment figure that splashes.
Fig. 4 is a pulsed wire feeding arc burning procedure chart.
Fig. 5 is wire feed droplet transfer in a latter stage procedure chart among Fig. 4.
Fig. 6 is according to arc voltage signal switch current figure.
Fig. 7 is according to motor wire feed phase place switch current figure.
Fig. 8 is the photogenerator schematic diagram.
Fig. 9 is pulsed wire feeding basic principle figure.
Figure 10 is crank rocker four connecting rod pulsating solder wire feeder fundamental diagrams.
Figure 11 is chuck structure figure.
Figure 12 is dynamometry chuck figure.
Figure 13 is for regulating the eccentric bushing figure of crank length.
Figure 14 regulates figure for offset.
Figure 15 measures figure for the wire feed step pitch.
Figure 16 is the scale structure figure among Figure 15.
Figure 17 is the scale fundamental diagram among Figure 15.
Fig. 1 is CO
2The solder shorts transient process.In the arc burning later stage, the molten drop of wire tip is constantly grown up, and electric arc shortens, so at t
aMoment contacts with the molten bath, and electric arc is by short circuit.Arc voltage u fiercely descends, and current i increases sharply, as schemes to go up shown in the solid line.Under powerful short circuit current effect, the liquid metal between welding wire and molten bath constantly attenuates, and forms the liquid bridge.To last t
bMoment, the liquid bridge is blown, and electric arc rekindles, and process repeats, up to be short-circuited next time again.
Studies show that the beginning and the end of splashing and mainly occurring in short circuit, i.e. t on the figure
aAnd t
bTwo moments.Fig. 2 has represented t
aThe situation that moment splashes.Touch the molten bath because the molten drop bottom rigidly connects, contact area is also very little, and powerful welding current flows through probably to be burnt this little contact point at once.The powerful explosive force that consequent metallic vapour causes can be pushed molten drop open fiercely from weld pool surface, even makes it break away from welding wire, dishes out with the form that bulky grain splashes.At t
bMoment, as shown in Figure 3, the liquid bridge between molten bath and welding wire has become very thin, and short circuit current has risen to very big value, so the liquid bridge also can explode as fuse, causes with the form of a large amount of broken particles and splashes.
The current waveform that dots among Fig. 1 represents to control the way that two dangerous instantaneous reduction are splashed.At t
aMoment,, electric current is reduced according to the detected arc voltage very signal of low value that plunges.Through one section very short time T
a, come back to normal condition, so short circuit current sharply rises.To the short circuit later stage, be about to disrumpent feelings signal (generally being that the voltage of liquid bridge at this moment is because the very thin constantly rising of liquid bridge has reached a certain critical voltage, as the Ucr on the figure) according to detected reflection liquid bridge again, so switch current disconnects the liquid bridge imperturbably under a very low electric current again.Deng being regular hour T
b, after arc stability ignites, just return to normal condition again.So just form figure and gone up the phenomenon that two low ebbs appear in current curve during the short circuit.
During short circuit, electric current can only switch to low value the short time, all also must keep enough short circuit currents in most time.This is in order to make the liquid bridge obtain enough electromagnetic contractile forces, the disconnection that attenuates, this just the liquid metal of molten drop carry out the transition to and remove indispensable power in the molten bath.If there is not this power, so along with constantly down the sending of welding wire, the liquid bridge floor is long-pending understands chap on the contrary, the minimizing of electric current even liquid bridge temperature is constantly reduced, and the short circuit process continues always, and the normal combustion process of electric arc is damaged.Therefore, although in an of short duration short-circuit stage, want twice quickly and accurately switch current be the thing of extremely difficult complexity, also must not be like this, this is that the essence of constant-speed wire-feeding droplet transfer determines.
The combustion process of electric arc when Fig. 4 has represented pulsed wire feeding.V represents wire feed rate among the figure, and u represents arc voltage, the i arc current.When motor rotates a circle, half cycle wherein, the motor wire feed phase place (O-π) on the figure, welding wire is motionless.Welding wire is counter to be burnt, and electric arc is elongated, and arc voltage is the t of π being equivalent to motor wire feed phase place.Moment reaches the highest.In the half cycle afterwards (π-2 π), welding wire is down sent to, sends the similar electric current halfwave rectifier of instantaneous velocity curve to.At this moment electric arc is shortened, molten drop to the molten bath by disturbing.Experiment shows, the unexpected starting of welding wire can the molten drop band together and be quickened.To sending latter stage to, when being equivalent to figure upper wire feeding hose phase place and being 2 π, though welding wire halts, molten drop be because the inertia of itself still can continue to rush at the molten bath, seem by welding wire " fall " in the molten bath like that.Fig. 5 has represented this situation.This new transition power that causes because of inertia makes the droplet transfer reduce dependence to electromagnetic contractile force widely, and is extremely beneficial to the droplet transfer.Even even not short circuit, molten drop also can initiatively break away from welding wire and carry out the transition in the molten bath and go.
Can see on Fig. 4 and send latter stage to, electric arc is the shortest, and the current value of representing with solid line on the figure is the highest.In this case, molten drop still might be by whole ejection as the contact molten bath.In the short circuit final stage, high-explosive also may take place in the liquid bridge, causes more greatly and splashes.Therefore consider the ability that initiatively flies to bath that molten drop has, certain hour that fully can be before welding wire drops to minimum point makes electric current drop to low value with regard to switch current.Over and done with really to minimum point, the certain hour after transition finishes just recovers normally, and the represented current waveform of dotted line is such on the image pattern.That is to say near the front and back interval relevant with the transition welding wire minimum point all is included in the current switching scope, make transition necessarily occur in electric current very little the time.Do that like this control is greatly simplified, no longer require clock like precision quick, can use common thyristor supply, and the control significant degree improves greatly.
Switch current can carry out according to various signal before and after the welding wire minimum point.Fig. 6 is the method for switching according to the arc voltage signal.M is a wire feeding motor among the figure, and F is a wire-feed motor.The welding wire (2) that comes out from wire reel (1) is welded by power supply (3) power supply.Arc voltage signalling device (4) changes the electric current of power supply output by the current switching system (5) of power supply inside.As shown in phantom in Figure 4, drop to a certain predetermined U when arc voltage
aAfter, electric current reduces.When voltage returns to another predetermined U again
bAfter, it is normal that electric current recovers.
Fig. 7 represents the method switched according to motor wire feed phase place.Different with Fig. 6 is to adorn a photogenerator (6) at the other end of motor drive shaft.Fig. 8 is its schematic diagram.(7) are fixing a disk (8) on the wire feeding motor axle, have many equally distributed apertures (9) on the disk limit.The light beam that light source (10) sends is received by photoelectricity signal converter (11) by aperture and amplifies.Somely on disk be equivalent to A place when wire feed phase place π (among Fig. 4) that motor just begun toward lower wire feeding hose and but lack an aperture.The phase place of ordering with respect to A when the light beam by aperture can reflect the motor rotation like this, the just phase place of wire feed and the time interval.As shown in Figure 4, as at the t that is equivalent to begin toward lower wire feeding hose
oT after moment
aThe time begin switch current, to t
bIn time, recover again normally can obtain the current curve shown in the dotted line too.
In the specific implementation, U
aAnd U
bDesirable slightly higher than minimum possible arc voltage, as 20～22 volts.t
aAt t
oAfter 120 °, t
bAt t
aAfter 120 °, promptly current switching becomes the time of low value to account for 1/3 of the whole cycle.
Also can take not to be power supply is done unexpected switching, but the mode that gradually changes.As can be by the said method in front according to the arc voltage signal, when arc voltage is higher, power supply output higher voltage, thus make arc current bigger.And when arc voltage was low, electric current also reduced.Similarly also can be according to the method for motor wire feed phase place signal, be equivalent to the peak of welding wire when wire feed phase place π (among Fig. 4), the electric current of power supply supply power maximum, and along with the decline of welding wire position, electric current also reduces.When the wire feed phase place was equivalent to the welding wire minimum point, it is minimum that electric current is reduced to.Do like this and can both make the droplet transfer necessarily occur in little current status.
Fig. 9 represents the basic principle of pulsed wire feeding.Welding wire is by chuck (20,21) clamping.Chuck reaches three steel balls (23) that are divided into 120 ° in tapered sleeve each other by ring-type tapered sleeve (22) and is formed.Chuck (20) is directly driven reciprocating by motor, claim drive dog.Chuck (21) transfixion claims the retaining chuck.When drive dog (20) as shown in the figure when the left movement, " wedge surface self-locking " effect clamping that welding wire is formed by the inclined-plane of steel ball and tapered sleeve is driven and is advanced.When chuck (20) when retreating to the right, welding wire is because stopping of retaining chuck (21) can not and then return, and it is motionless to be parked in the original place.So drive dog (20) is along the empty sliding reposition of welding wire.Welding wire just one advances to stop like this.The every reciprocating motion of drive dog once, welding wire just " advances-pause " once, sends a step pitch to, just figure goes up the amplitude S of drive dog motion.Motor whenever circles, and drive dog moves back and forth once, and welding wire is sent a step pitch to.So the wire feed frequency is the rotating speed of motor just,, wire feed rate multiply by step pitch and also just equaling motor rotary speed.
Studies show that drive dog might not very strictly be moved as last figure along a straight line.Drive dog is more crooked slightly, and movement locus makes welding wire make pulsating motion as long as near linear just can play a role reliably.This has just created condition for the simplification wire feeder improves its reliability.Figure 10 represents the operation principle of crank rocker four connecting rod pulsating solder wire feeders.AB is a crank among the quadric chain ABCD, and BC is a connecting rod, and CD is a rocking bar.Drive dog (20) is fixed on the end that connecting rod BC goes up close rocking bar CD.In order to increase wire feeding force, drive dog can be with a plurality of.Retaining chuck (21) transfixion, crank AB is directly driven around the rotation of A point by motor, and drivening rod BC and rocking bar CD move together.The node C of connecting rod BC and rocking bar CD swings on a camber line LCR, and the center of camber line is the basic point D of rocking bar CD.The length of camber line approximately is the diameter of a circle that crank-motion is done, just wire feed step pitch S.Being fixed on the movement locus of the drive dog (20) on the connecting rod 1 end C point, also is a camber line near LCR basically.Because the relative motion that drive dog (20) is done retaining chuck (21), welding wire (2) has just been sent to by pulsation.
In fact in these cases, the swing about drive dog (20) not only has also has fluctuating up and down.Welding wire (2) neither keep a straight line, but constantly bent.For the situation that makes above-mentioned fluctuating and bending reduces to minimum, crank and rocker mechanism should be designed to as far as possible: 1, the length of connecting rod BC and rocking bar CD is much larger than the length of crank AB; 2, when rocking bar CD swings to position intermediate, rocking bar CD answers vertical links BC, i.e. CD BC; 3, when rocking bar CD swings to the centre position, its extended line should be by being contained in the welding wire exit of the drive dog (20) on the connecting rod BC.The camber line LCR straight line of the most approximate level just only in this way, and the welding wire (2) that drive dog (20) is sent out rises and falls and bending is minimum.
During practical application, crank AB length is half of step pitch, is generally 1 to 2 millimeter.20 times of the length of getting connecting rod and rocking bar are to crank, promptly 20 to 40 millimeters.Can prove that the motion of drive dog this moment (20) is quite accurately near theoretic rectilinear motion.
Figure 11 represents the practical structures of chuck (20,21).Chuck is an integral body.Tapered sleeve (22) is gone into from an end plug of shell (24), and big mouthful outwardly.Retainer (26) and guide pipe (25) insert from the other end.Retainer (26) one ends have three homogeneous phases to hold steel ball every 120 ° aperture, rely on the effect of spring (28) that steel ball is pressed on the conical surface of tapered sleeve (22).Guide pipe (25) is fixedly remained on the chuck center line by snap ring (27).Guide pipe (25) pipe shaft external diameter partly is slightly less than the internal diameter of retainer (26), and about 0.2 millimeter, therefore retainer can be free to slide on guide pipe, but can excessively not tilt, and is in all the time in the plane perpendicular to welding wire to guarantee three steel balls.The guide pipe front end reaches near the steel ball always, and welding wire is remained on the chuck center line with linear state in chuck always, makes the welding wire clamping reliable.
The steel ball size of practical application is 3 to 5 millimeters, and the cone angle of tapered sleeve is 17 °～30 °.
Figure 12 is a kind of chuck that can regulate maximum wire feeding force, is called the dynamometry chuck.Above-mentioned drive dog (20) entirely is contained in the sleeve (29) that portion slides within it.Drive dog (20) one ends are blocked by snap ring (30), and the other end is compressed by spring (32) by compact heap (31).Compact heap (31) moves in sleeve (29) by screw thread, thereby can change the spring pressure that acts on the chuck (20).Sleeve (29) is fixed on the connecting rod.The resistance that advances when welding wire is during less than spring pressure, and whole dynamometry chuck is made the as a whole welding wire of sending to.When welding wire advance resistance during greater than spring pressure, although sleeve (29) is being with compact heap (31) etc. still to advance as usual, drive dog (20) is compressed spring (32) and is stayed put motionlessly, just no longer sends welding wire to.Limit maximum wire feeding force can prevent filament or soft silk when sending to because of resistance uprush (chewing sintering) as welding wire and conduction produce the clot phenomenon.
Figure 13 is as the eccentric bushing of regulating crank length.When needs change the wire feed step pitch, essential length of regulating crank.Eccentric shaft among the figure (33) is directly driven by motor, and around the O of motor center rotation, the degree of eccentricity own is e
1One side of excentric sleeve (34) (right side on the figure) is an eccentric bushing, its center O
1Be the off-centre of eccentric shaft (33), the degree of eccentricity own is e
2Connecting rod is contained in outside this excentric sleeve (34) by bearing.The another side of excentric sleeve (34) (figure upper left side) be one with O
1Be the disk at center, the screw (35) that passes excentric sleeve (34) is fixing eccentric shaft (33) and excentric sleeve (34), forms an eccentric bushing.
Figure 14 represents the adjusting of offset.Figure A represents that synthetic offset is a sum of the two, e=e when two eccentric directions are consistent
1+ e
2When the two direction is opposite, as figure B, poor for the two, e=e
1-e
2When the two became different angles, synthetic offset was at e
1+ e
2To e
1-e
2Between change, thereby the step pitch of having regulated wire feed.
Figure 15 represents the mensuration of wire feed step pitch.ABCD is crank rocker four connecting rod wire feeders among the figure.On near drive dog (20) and the same elevation plane of welding wire (2), step pitch mensuration scale (36,37) is installed.Figure 16 represents the concrete structure of scale.Scale is pressed vernier caliper principle and is partly formed by two.Main scale (36) is fixed on the wire-feed motor support motionless, and its scale is 1 millimeter of every little lattice.Pay chi (37) and be fixed on the connecting rod (BC), with connecting rod (BC) and drive dog (2) motion, its scale is 0.9 millimeter of every little lattice.During link motion, the relative position of main scale (36) and pair chi (37) changes.About arriving according to link motion during two extreme positions, the difference of scale indication can be measured the size of step pitch.Figure 17 represents the operation principle of scale.State A represents that link motion arrives leftmost position among the figure, and rod reading is 3.3.When B represented link motion to the least significant, rod reading was 5.8.Can draw the mobile range of connecting rod thus, just the wire feed step pitch is the 5.8-3.3=2.5 millimeter.Deep analysis can prove, the scale installation site is the closer to the welding wire exit, with welding wire (2) at sustained height, the approaching more real wire feed step pitch of its reading.
Claims (10)
1, a kind of reduction CO
2The control device of spatter, it makes electric current drop to low value during the droplet transfer, it is characterized in that welding wire pulsation sends to, electric current certain hour transition begins before just has been reduced to low value, to the transition end afterwards certain hour just recover normal.
2, by the said device of claim 1, it is characterized in that with the signal of arc voltage as current switching: when arc voltage dropped to a certain predetermined value, electric current dropped to low value; When arc voltage rises to another predetermined value, it is normal that electric current recovers.
3, by the said device of claim 1, it is characterized in that with the signal of motor wire feed phase place as current switching: when delivering to a certain position under the welding wire, electric current drops to low value; When the wire feed phase place reached the another location, it is normal that electric current recovers.
4,, it is characterized in that with the arc voltage signal that output changes as power supply by the said device of claim 1: when arc voltage is higher, the electric current that power supply output is bigger; When arc voltage reduced, the output current of power supply also reduced.
5,, it is characterized in that with the motor wire feed phase place signal that output changes as power supply by the said device of claim 1: when welding wire is in the extreme higher position, the electric current maximum; Along with the decline of welding wire position, electric current also descends.
6, a kind of pulsed wire feeding device, it is done relative motion by drive dog (20) to retaining chuck (21) and realizes, it is characterized in that one or more drive dog (20) are fixed on the end of crank rocker quadric chain near rocking bar; Crank is directly driven by motor; The length of connecting rod and rocking bar is much larger than the length of crank; When rocking bar shook the centre position, rocking bar was perpendicular to connecting rod, and the extended line of rocking bar is by the welding wire exit of drive dog at this moment.
7, by the said device of claim 6, it is characterized in that chuck is an integral body; Tapered sleeve (22) is gone into from an end plug of shell (24), and big mouthful outwardly; The retainer (26) that guide pipe (25) and cover can be free to slide thereon inserts from the other end together; The outer shell of guide pipe (25) (24) location remains on the chuck center line.
8,, it is characterized in that drive dog (20) is contained in one slidably in the sleeve (29) by the said device of claim 6; Sleeve (29) is fixed on the connecting rod BC; The pressure that acts on the spring (32) on the drive dog (20) can be regulated by compact heap (31).
9,, it is characterized in that crank is made up of eccentric bushing by the said device of claim 6; Excentric sleeve (34) is the center with the off-centre of eccentric shaft (33), can rotate relatively, and fixing by the screw that passes the two (35).
10, by the said device of claim 6, it is characterized in that on plane near drive dog (20) and welding wire (2) sustained height, step pitch is installed measures scale; Scale is partly formed by two, and main scale (36) is fixed on the support, and its scale is 1 millimeter of every little lattice, pays chi (37) and is fixed on the connecting rod (BC), and its scale is 0.9 millimeter of every little lattice.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96102163 CN1158777A (en) | 1996-03-05 | 1996-03-05 | Splash-reducing carbon dioxide arc welder |
| PCT/CN1997/000013 WO1997032683A1 (en) | 1996-03-05 | 1997-03-03 | A control method for reducing spatter in co2 protective welding and pulsate wire feeder thereto |
| AU18662/97A AU1866297A (en) | 1996-03-05 | 1997-03-03 | A control method for reducing spatter in co2 protective welding and pulsate wire feeder thereto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96102163 CN1158777A (en) | 1996-03-05 | 1996-03-05 | Splash-reducing carbon dioxide arc welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1158777A true CN1158777A (en) | 1997-09-10 |
Family
ID=5117437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96102163 Pending CN1158777A (en) | 1996-03-05 | 1996-03-05 | Splash-reducing carbon dioxide arc welder |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1158777A (en) |
| AU (1) | AU1866297A (en) |
| WO (1) | WO1997032683A1 (en) |
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| WO2002020207A1 (en) * | 2000-07-29 | 2002-03-14 | Zijian Sun | Pulsate feeding mechanism for welding wires |
| CN100344402C (en) * | 2003-09-26 | 2007-10-24 | 清华大学 | Method and system for reducing splash in gas shielded welding of short-circuiting transfer |
| CN101870032A (en) * | 2010-06-18 | 2010-10-27 | 杭州凯尔达电焊机有限公司 | Molten drop timed and forced short-circuiting transfer control method in large-current CO2 welding process |
| CN101151118B (en) * | 2006-02-17 | 2010-12-08 | 松下电器产业株式会社 | Arc welding control method and welding device |
| CN102371415A (en) * | 2010-08-20 | 2012-03-14 | 株式会社大亨 | Arc Welding Method And Arc Welding System |
| CN102626814A (en) * | 2011-02-07 | 2012-08-08 | 株式会社大亨 | Welding device and carbon dioxide gas shielded arc welding method |
| CN103111732A (en) * | 2013-01-25 | 2013-05-22 | 昆山华恒焊接股份有限公司 | Control method of short circuiting transient process in consumable electrode gas shielded welding |
| CN103372713A (en) * | 2013-02-20 | 2013-10-30 | 天津工业大学 | Aero-engine blade damage repair method |
| CN103372704A (en) * | 2012-04-16 | 2013-10-30 | 株式会社大亨 | Arc welding device |
| WO2018094577A1 (en) * | 2016-11-22 | 2018-05-31 | 陈永 | Feeding mechanism for metal wire |
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| US6087626A (en) * | 1998-02-17 | 2000-07-11 | Illinois Tool Works Inc. | Method and apparatus for welding |
| US10821535B2 (en) | 2017-03-16 | 2020-11-03 | Lincoln Global, Inc. | Short circuit welding using self-shielded electrode |
| CN108098114B (en) * | 2018-01-30 | 2024-10-29 | 吴钩科技(苏州)有限公司 | Pulse wire feeder for argon arc welding |
| CN108188544A (en) * | 2018-01-30 | 2018-06-22 | 苏州迈德焊接科技有限公司 | A kind of low spatter short circuit gas shield welding equipment |
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| CN85100692B (en) * | 1985-04-01 | 1987-03-11 | 机械工业部郑州机械研究所 | Current amplitude modulation method and device for push-pull short circuit transition welding |
| CN85100690B (en) * | 1985-04-01 | 1987-03-11 | 机械工业部郑州机械研究所 | Push-pull short circuit transition welding method and pulse wire feeder thereof |
| CN2170819Y (en) * | 1992-01-31 | 1994-07-06 | 宋武军 | Non-melting electrode welding feeder |
| IL102935A (en) * | 1992-08-25 | 1996-10-31 | Planetics Welding Systems Ltd | Planetary feeder heads |
| CN2185176Y (en) * | 1993-10-05 | 1994-12-14 | 郑宝英 | Impulse wire feeder for welding |
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1996
- 1996-03-05 CN CN 96102163 patent/CN1158777A/en active Pending
-
1997
- 1997-03-03 AU AU18662/97A patent/AU1866297A/en not_active Abandoned
- 1997-03-03 WO PCT/CN1997/000013 patent/WO1997032683A1/en active Application Filing
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020207A1 (en) * | 2000-07-29 | 2002-03-14 | Zijian Sun | Pulsate feeding mechanism for welding wires |
| CN100344402C (en) * | 2003-09-26 | 2007-10-24 | 清华大学 | Method and system for reducing splash in gas shielded welding of short-circuiting transfer |
| CN101151118B (en) * | 2006-02-17 | 2010-12-08 | 松下电器产业株式会社 | Arc welding control method and welding device |
| CN101870032A (en) * | 2010-06-18 | 2010-10-27 | 杭州凯尔达电焊机有限公司 | Molten drop timed and forced short-circuiting transfer control method in large-current CO2 welding process |
| CN102371415B (en) * | 2010-08-20 | 2015-05-20 | 株式会社大亨 | Arc Welding Method And Arc Welding System |
| CN102371415A (en) * | 2010-08-20 | 2012-03-14 | 株式会社大亨 | Arc Welding Method And Arc Welding System |
| CN102626814A (en) * | 2011-02-07 | 2012-08-08 | 株式会社大亨 | Welding device and carbon dioxide gas shielded arc welding method |
| CN103372704A (en) * | 2012-04-16 | 2013-10-30 | 株式会社大亨 | Arc welding device |
| CN103111732A (en) * | 2013-01-25 | 2013-05-22 | 昆山华恒焊接股份有限公司 | Control method of short circuiting transient process in consumable electrode gas shielded welding |
| CN103111732B (en) * | 2013-01-25 | 2015-12-02 | 昆山华恒焊接股份有限公司 | The control method of short circuit transition in gas metal-arc welding |
| CN103372713A (en) * | 2013-02-20 | 2013-10-30 | 天津工业大学 | Aero-engine blade damage repair method |
| CN103372713B (en) * | 2013-02-20 | 2015-10-14 | 天津工业大学 | A kind of restorative procedure of aero-engine blade damage |
| WO2018094577A1 (en) * | 2016-11-22 | 2018-05-31 | 陈永 | Feeding mechanism for metal wire |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997032683A1 (en) | 1997-09-12 |
| AU1866297A (en) | 1997-09-22 |
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