CN103302385A - Submerged-arc welding method and submerged-arc welding system - Google Patents
Submerged-arc welding method and submerged-arc welding system Download PDFInfo
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- CN103302385A CN103302385A CN2012100693913A CN201210069391A CN103302385A CN 103302385 A CN103302385 A CN 103302385A CN 2012100693913 A CN2012100693913 A CN 2012100693913A CN 201210069391 A CN201210069391 A CN 201210069391A CN 103302385 A CN103302385 A CN 103302385A
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Abstract
The invention relates to a submerged-arc welding method and a submerged-arc welding system. The submerged-arc welding method comprises the following steps that the submerged-arc welding system is provided, the submerged-arc welding system comprises a commercial power receiving module, an inverter direct current module, an electric signal control module and a welding module, and the commercial power receiving module receives commercial power; the commercial power receiving module provides electric energy for the inverter direct current module, and the electric signal control module controls the inverter direct current module to output welding electric signals to the welding module; the work voltage and the pulse frequency of the welding electric signals output by the inverter direct current module are set by the electric signal control module; welding fluxes are paved, and the arc starting welding is carried out. The submerged-arc welding method and the submerged-arc welding system have the advantage that the performance is better.
Description
[technical field]
The present invention relates to the iron structure welding technology field, relate in particular to a kind of buried arc welding method and a kind of submerged arc welding system.
[background technology]
At the iron structure welding technology field, buried arc welding method is very widely welding method of a kind of range of application, and the submerged arc welding system also is very widely welding system of a kind of range of application.For example, buried arc welding method and corresponding system can be applied in the steel constructions such as bridge, metallurgical machinery, boats and ships, boiler.
Buried arc welding method commonly used comprises direct current submerged-arc welding and exchanges submerged-arc welding at present.Take the direct current buried arc welding method as example, when filament welded, because the molten bath is difficult for overheatedly, the mechanical property of welding point easily was guaranteed.And when using thick welding wire welding, the ratio that the energy that the molten bath obtains accounts for whole arc energy increases, and the molten bath is easily overheated, and the mechanical property of welding point will variation.
Simultaneously, when overheated in the molten bath, also have the phenomenon of grain growth in the welding, at this moment, the welding quality of soldered steel just is difficult to satisfactory.
In order to improve welding procedure and welding quality, people have developed various based on the welding method on the submerged-arc welding basis gradually.Such as TWIN arc welding of the submerged-arc welding of mariages list ignition tip, single source of welding current etc.But these welding method more complicated.In order to improve the problem of welding point grain growth, can add among welding wire and solder flux can be with the element of grain refinement, but this welding wire and solder flux cost are higher, are unfavorable for promoting the use of.
Equally, electromagnetic viscosimeter equipment can also be set at the head of bonding machine, what welding point and molten bath were subject to electromagnetic viscosimeter affects meeting so that grain refinement, thereby so that the mechanical property of welding point improve.But owing to limitting the operating space, larger in head interpolation electromagnetic oscillation equipment difficulty, and meeting causes welding job to become more complicated, is unfavorable for that welding operation personnel operation, welding efficiency are more low so that the operating space further dwindles.
In view of above problem, the cost of buried arc welding method of the prior art and welding system is higher, welding quality is relatively poor, welding efficiency is lower, that is, the welding performance of buried arc welding method of the prior art and welding system is relatively poor.
[summary of the invention]
Because the relatively poor technical problem of welding performance of buried arc welding method of the prior art is necessary to provide preferably buried arc welding method of a kind of welding performance.
Simultaneously, because the relatively poor technical problem of welding performance of submerged arc welding system in the prior art also is necessary to provide preferably submerged arc welding system of a kind of welding performance.
The technical problem that the present invention solves provides a kind of buried arc welding method.This buried arc welding method comprises: a submerged arc welding system is provided, and this submerged arc welding system comprises the civil power receiver module, an inversion direct current module, a signal of telecommunication control module and the welding module that receive civil power; This civil power receiver module provides electric energy to this inversion direct current module, and this signal of telecommunication control module is controlled this inversion direct current module output welding signal of telecommunication to this welding module; Pulse frequency and the operating voltage of the welding signal of telecommunication of this inversion direct current module output are set by this signal of telecommunication control module; Spreading solder flux and starting the arc welding.
In the further preferred embodiment of buried arc welding method of the present invention, described signal of telecommunication control module comprises pulse control unit and power control unit; Described pulse control unit also comprises frequency controller, occupancy controller and mode controller; Described power control unit comprises voltage regulator and charger.This buried arc welding method also comprises: provide electric energy to this pulse control unit by charger; By mode controller this pulse control unit mode of operation being set is pulse mode; Regulate welding signal of telecommunication frequency values by frequency controller; Regulate welding signal of telecommunication dutycycle by occupancy controller; Regulate the magnitude of voltage of this welding signal of telecommunication by this voltage regulator.
In the further preferred embodiment of buried arc welding method of the present invention, adjust described frequency values to 20 between 45 hertz; Adjusting described dutycycle is 50%; Adjusting described magnitude of voltage is between 32 volts to 38 volts.
In the further preferred embodiment of buried arc welding method of the present invention, this pulse control unit also comprises electric current base value setting apparatus and current peak setting apparatus; This buried arc welding method also comprises: set the electric current base value of this welding signal of telecommunication by this electric current base value setting apparatus, this electric current base value is more than or equal to 500 amperes and less than or equal to 750 amperes; Set the current peak of this welding signal of telecommunication by this current peak setting apparatus, this current peak is more than or equal to 700 amperes and less than or equal to 950 amperes.
In the further preferred embodiment of buried arc welding method of the present invention, this submerged arc welding system also comprises a carrier module, and this carrier module comprises a wire feed rate setting apparatus; This buried arc welding method also comprises the wire feed rate of setting welding wire by this wire feed rate setting apparatus, and the wire feed rate of this welding wire more than or equal to 20 meters per hour and less than or equal to 30 meters per hour.
The present invention also provides a kind of submerged arc welding system.This submerged arc welding system comprises the civil power receiver module, an inversion direct current module, a signal of telecommunication control module and the welding module that receive civil power; This civil power receiver module provides electric energy to this inversion direct current module, and this signal of telecommunication control module is controlled the welding signal of telecommunication of this inversion direct current module output pulsed to this welding module.
In the further preferred embodiment of submerged arc welding of the present invention system, this submerged arc welding system also comprises a carrier module, and this carrier module is used for this civil power receiver module of carrying, this inversion direct current module, this signal of telecommunication control module and this welding module; This signal of telecommunication control module comprises a pulse control unit and a power control unit; This pulse control unit is to this power supply control power supply output control signal; This power supply control power supply is controlled the output of this inversion direct current unit to this inversion direct current module output control signal.
In the further preferred embodiment of submerged arc welding of the present invention system, this power control unit comprises a charger and a voltage regulator, this charger output electric energy is to this pulse control unit, and you straighten flow module to this voltage regulator output voltage conditioning signal to this.
In the further preferred embodiment of submerged arc welding of the present invention system, this carrier module comprises a wire feeder and a wire feed rate setting apparatus, and this wire feed rate setting apparatus transmission wire feed rate controls signal to wire feeder; This pulse control unit comprises a mode of operation selector, a pulse frequency adjuster, a duty cycle adjustment device, an electric current base value setting apparatus and a current peak setting apparatus, and this pulse control unit comprises mode of operation information, pulse frequency information, duty cycle information, electric current base value information and current peak information to the control signal of this power control unit output.
With respect to prior art, because buried arc welding method of the present invention and submerged arc welding system comprise this signal of telecommunication control module, this signal of telecommunication control module comprises this pulse control unit and this energy supply control module, the characteristic that this pulse control unit and this energy supply control module can effectively be regulated this welding signal of telecommunication, thereby bath temperature is higher when improving welding, the technical problem of easy grain growth, so that when welding bath temperature relatively low, crystal grain is less, thereby so that the good mechanical properties of welding result, buried arc welding method of the present invention and submerged arc welding systematic function are better.
Simultaneously, with respect to prior art, because buried arc welding method of the present invention and submerged arc welding system comprise this signal of telecommunication control module, this signal of telecommunication control module comprises this pulse control unit and this energy supply control module, the characteristic that this pulse control unit and this energy supply control module can effectively be regulated this welding signal of telecommunication, so that buried arc welding method of the present invention and submerged arc welding system do not need the higher welding wire that is added with Refining Elements of use cost, do not need the electromagnetic viscosimeter equipment that uses complex structure and cause the welding operation space to diminish yet, thereby so that buried arc welding method of the present invention and submerged arc welding system cost are lower, the operating space is larger, and the performance of buried arc welding method of the present invention and submerged arc welding system is better.
[description of drawings]
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic flow sheet of a preferred embodiment of buried arc welding method of the present invention.
Fig. 2 is the modular structure schematic diagram of a preferred embodiment of submerged arc welding of the present invention system.
[specific embodiment]
The invention provides a kind of buried arc welding method and submerged arc welding system.
Please referring to Fig. 1 and Fig. 2, Fig. 1 is the schematic flow sheet of a preferred embodiment of buried arc welding method of the present invention, and Fig. 2 is the modular structure schematic diagram of a preferred embodiment of submerged arc welding of the present invention system.
Buried arc welding method of the present invention comprises:
Step S1, provide a submerged arc welding system;
Submerged arc welding of the present invention system 1 comprises civil power receiver module 11, inversion direct current module 13, signal of telecommunication control module 15, welding module 17 and carrier module 19.
This civil power receiver module 11 is used for receiving civil power, and this civil power is passed to this inversion direct current module 13.The voltage of the civil power that this civil power receiver module 11 receives can be the voltage of 380 volts of three-phases, also can be the voltage of 220 volts of two-phases.
This inversion direct current module 13 is used for this civil power is converted to direct current.Concrete, this inversion direct current module 13 comprises first rectification circuit, a current inversion circuit and second rectification circuit.This civil power is the first direct current by the first rectification circuit with this civil power arrangement first.This first direct current changes high-frequency alternating current into by the current inversion circuit.This high-frequency alternating current is adjusted to the second direct current by this second rectification circuit.This inversion direct current module 13 transfers electric main to this first direct current, is transferring this first direct current to this high-frequency alternating current, this high-frequency alternating current is being changed into this second direct current to this welding module 17 afterwards.
This signal of telecommunication control module 15 is used for this inversion direct current module 13 is regulated and control, thereby controls this second galvanic production process, realizes the control of the second direct current Output rusults of this output is converted to needed current signal with this second direct current.Define this second direct current after adjusted and be the welding signal of telecommunication.
This signal of telecommunication control module 15 comprises a pulse control unit 151 and a power control unit 153.This pulse control unit 151 is electrically connected with this power control unit 153, and this power control unit 153 is electrically connected with this inversion direct current module 13.This power control unit 153 provides power supply for this pulse control unit 151, and this pulse control unit 151 is to these power control unit 153 output control signals.
Particularly, this pulse control unit 151 comprises that a mode of operation selector, pulse frequency adjuster, dutycycle arrange device, device is set for welding current base value and a welding current peak value arranges device.
This pulse control module 151 comprises pulse mode and non-pulse pattern.Pulse mode refers to control this pulse control unit 151 by this power control unit 153 so that this inversion direct current module 13 output pulse currents.The non-pulse pattern refers to control this pulse control unit 151 by this power control unit 153 so that this inversion direct current module 13 output non-pulse electric currents.This mode of operation selector is used for determining that this pulse control unit 151 works in pulse mode or non-pulse pattern.This pulse frequency adjuster is the frequency values be used to the welding signal of telecommunication of the impulse form that these inversion direct current module 13 outputs are set.It is dutycycle be used to the welding signal of telecommunication of the impulse form that 13 outputs of this inversion direct current module are set that this dutycycle arranges device.It is electric current base value be used to the welding signal of telecommunication of the impulse form that 13 outputs of this inversion direct current module are set that this welding current base value arranges device.It is peak point current be used to the welding signal of telecommunication of the impulse form that 13 outputs of this inversion direct current module are set that this welding current peak value arranges device.
This power control unit 153 comprises a power supply interface and a voltage regulator, and this power supply interface provides electric energy for this impulse controller 151.This voltage regulator is used for the voltage of the signal of telecommunication of these inversion direct current module 13 outputs of adjusting.
This welding module 17 is used for soldered object is welded.Particularly, this welding module 17 can comprise a welding gun, also can comprise two welding guns.In another embodiment, this welding module 17 also comprises welding wire.
This carrier module 19 is used for this civil power receiver module 11 of carrying, inversion direct current module 13, signal of telecommunication control module 15 and welding module 17, for this receiver module 11, inversion direct current module 13, signal of telecommunication control module 15 and the movement of welding module 17 in three dimensions provide support platform.
This carrier module 19 comprises welding wire loader, wire feeder, wire feed rate setting apparatus, welding torch position adjuster and shifting roller.This welding wire loader is used for the carrying welding wire.This wire feeder is used for this welding wire is sent with pre-set velocity.This wire feed rate setting apparatus is used for setting the speed of wire feeder wire feed.This welding torch position adjuster is used for fixing this welding torch position in three dimensions.This shifting roller is used for mobile and rotates this carrier module 19.
Step S2, adjusting signal of telecommunication control module parameter are to preset value;
The running parameter of this welding signal of telecommunication comprises pattern, voltage, pulse frequency, dutycycle, electric current base value and current peak etc.Pattern can strobe pulse and non-pulse pattern, the scope of voltage can be chosen between 0 to 100 volt, 1 to 100 hertz of pulse frequency, dutycycle can adjust to 99% from 1%, the electric current base value can be selected in from 450 to 950 amperes the scope, and current peak can be selected in from 500 to 950 the scope.
The parameter adjustment of this signal of telecommunication control module 15 comprises to preset value:
Adjust the voltage regulator of this power control unit 153, voltage parameter is adjusted between 32 volts to 38 volts;
Adjust the mode of operation selector of this impulse controller 151, the mode of operation of this impulse controller 151 is set to pulse mode;
Adjust the pulse frequency adjuster of this impulse controller 151, pulse frequency is set to 20 hertz; In another embodiment, this pulse frequency can also be set to 30 hertz or 45 hertz;
The dutycycle of regulating this impulse controller 151 arranges device, and the dutycycle of pulse is set to 50%;
The welding current base value of regulating this impulse controller 151 arranges device, and this electric current base value is set between 500 to 750 amperes; It also can be 500 amperes or 750 amperes;
The welding current peak value of regulating this impulse controller 151 arranges device, and these electric current 700 peak values are set between 950 amperes; It also can be 700 amperes or 950 amperes.
Step S3, wire feed rate and welding wire position are set;
Welding wire is loaded among this welding wire loader, and wire feeder is delivered to this welding wire gradually and is used for welding on the welding gun.This wire feed rate setting apparatus can be used for setting the speed of wire feed.During use, by this wire feed rate setting apparatus the speed of this wire feeder wire feed per hour is adjusted between 20 to 30 meters effect better.Nature, the speed of this wire feed also can be per hour 20 or 30 meters.
The experiment of being undertaken by the present invention, when welding, the welding wire position vertically withstands the working surface meeting so that welding effect is better, and it is better that the rifle head of welding gun aligns the position, middle of bevel for welding.Therefore when welding system of the present invention uses, welding wire vertically need to be withstood working surface, and simultaneously the rifle head of welding gun be aligned the position, middle of bevel for welding.
Step S4, spreading solder flux, starting the arc welding.
After finishing above-mentioned steps S1, step S2 and step S3, the good solder flux of spreading on workpiece to be welded, and begin welding.
With respect to prior art, because buried arc welding method of the present invention and submerged arc welding system comprise this signal of telecommunication control module 15, this signal of telecommunication control module 15 comprises this pulse control unit 151 and this energy supply control module 153, the characteristic that this pulse control unit 151 and this energy supply control module 153 can effectively be regulated this welding signal of telecommunication, thereby bath temperature is higher when improving welding, the technical problem of easy grain growth, so that when welding bath temperature relatively low, crystal grain is less, thereby so that the good mechanical properties of welding result, buried arc welding method of the present invention and submerged arc welding systematic function are better.
Simultaneously, with respect to prior art, because buried arc welding method of the present invention and submerged arc welding system comprise this signal of telecommunication control module 15, this signal of telecommunication control module 15 comprises this pulse control unit 151 and this energy supply control module 153, the characteristic that this pulse control unit 151 and this energy supply control module 153 can effectively be regulated this welding signal of telecommunication, so that buried arc welding method of the present invention and submerged arc welding system do not need the higher welding wire that is added with Refining Elements of use cost, do not need the electromagnetic viscosimeter equipment that uses complex structure and cause the welding operation space to diminish yet, thereby so that buried arc welding method of the present invention and submerged arc welding system cost are lower, the operating space is larger, and the performance of buried arc welding method and submerged arc welding system is better.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art are in the situation that can carry out various modifications to the present invention not breaking away from the spirit and scope of the present invention after reading present patent application.
Claims (9)
1. a buried arc welding method is characterized in that, this buried arc welding method comprises:
A submerged arc welding system is provided, and this submerged arc welding system comprises the civil power receiver module, an inversion direct current module, a signal of telecommunication control module and the welding module that receive civil power; This civil power receiver module provides electric energy to this inversion direct current module, and this signal of telecommunication control module is controlled this inversion direct current module output welding signal of telecommunication to this welding module;
Pulse frequency and the operating voltage of the welding signal of telecommunication of this inversion direct current module output are set by this signal of telecommunication control module;
Spreading solder flux and starting the arc welding.
2. buried arc welding method according to claim 1 is characterized in that,
Described signal of telecommunication control module comprises pulse control unit and power control unit; Described pulse control unit also comprises frequency controller, occupancy controller and mode controller; Described power control unit comprises voltage regulator and charger;
This buried arc welding method also comprises:
Provide electric energy to this pulse control unit by charger;
By mode controller this pulse control unit mode of operation being set is pulse mode;
Regulate welding signal of telecommunication frequency values by frequency controller;
Regulate welding signal of telecommunication dutycycle by occupancy controller;
Regulate the magnitude of voltage of this welding signal of telecommunication by this voltage regulator.
3. buried arc welding method according to claim 2 is characterized in that,
Adjust described frequency values to 20 between 45 hertz;
Adjusting described dutycycle is 50%;
Adjusting described magnitude of voltage is between 32 volts to 38 volts.
4. according to claim 1 to the described buried arc welding method of 3 any one, it is characterized in that, this pulse control unit also comprises electric current base value setting apparatus and current peak setting apparatus; This buried arc welding method also comprises:
Set the electric current base value of this welding signal of telecommunication by this electric current base value setting apparatus, this electric current base value is more than or equal to 500 amperes and less than or equal to 750 amperes;
Set the current peak of this welding signal of telecommunication by this current peak setting apparatus, this current peak is more than or equal to 700 amperes and less than or equal to 950 amperes.
5. buried arc welding method as claimed in claim 4 is characterized in that, this submerged arc welding system also comprises a carrier module, and this carrier module comprises a wire feed rate setting apparatus;
This buried arc welding method also comprises the wire feed rate of setting welding wire by this wire feed rate setting apparatus, and the wire feed rate of this welding wire more than or equal to 20 meters per hour and less than or equal to 30 meters per hour.
6. a submerged arc welding system is characterized in that, this submerged arc welding system comprises the civil power receiver module, an inversion direct current module, a signal of telecommunication control module and the welding module that receive civil power; This civil power receiver module provides electric energy to this inversion direct current module, and this signal of telecommunication control module is controlled the welding signal of telecommunication of this inversion direct current module output pulsed to this welding module.
7. submerged arc welding according to claim 6 system, it is characterized in that, this submerged arc welding system also comprises a carrier module, and this carrier module is used for this civil power receiver module of carrying, this inversion direct current module, this signal of telecommunication control module and this welding module; This signal of telecommunication control module comprises a pulse control unit and a power control unit; This pulse control unit is to this power supply control power supply output control signal; This power supply control power supply is controlled the output of this inversion direct current unit to this inversion direct current module output control signal.
8. submerged arc welding according to claim 7 system, it is characterized in that, this power control unit comprises a charger and a voltage regulator, and this charger output electric energy is to this pulse control unit, and you straighten flow module to this voltage regulator output voltage conditioning signal to this.
9. the described submerged arc welding of any one system in 8 according to claim 6 is characterized in that, this carrier module comprises a wire feeder and a wire feed rate setting apparatus, and this wire feed rate setting apparatus transmission wire feed rate controls signal to wire feeder; This pulse control unit comprises a mode of operation selector, a pulse frequency adjuster, a duty cycle adjustment device, an electric current base value setting apparatus and a current peak setting apparatus, and this pulse control unit comprises mode of operation information, pulse frequency information, duty cycle information, electric current base value information and current peak information to the control signal of this power control unit output.
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| CN2012100693913A CN103302385A (en) | 2012-03-16 | 2012-03-16 | Submerged-arc welding method and submerged-arc welding system |
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| CN2012100693913A CN103302385A (en) | 2012-03-16 | 2012-03-16 | Submerged-arc welding method and submerged-arc welding system |
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Cited By (1)
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Application publication date: 20130918 |