CN104607763A - Direct current welding current adjusting method - Google Patents
Direct current welding current adjusting method Download PDFInfo
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- CN104607763A CN104607763A CN201410787429.XA CN201410787429A CN104607763A CN 104607763 A CN104607763 A CN 104607763A CN 201410787429 A CN201410787429 A CN 201410787429A CN 104607763 A CN104607763 A CN 104607763A
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- current
- direct current
- welding
- movable core
- point
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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
- B23K9/095—Monitoring or automatic control of welding parameters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention discloses a direct current motor improvement method. According to the method, an existing alternating current motor serves as a cylinder, four diodes are additionally arranged on the alternating current motor and are arranged on an aluminum plate to form a single-phase bridge circuit, then the output end of an alternating current welding machine is connected to the input of the bridge circuit, alternation is conducted through the diodes, and breakover is achieved so as to achieve improvement of the alternating current motor. When the electrowelding transformer current is transmitted in from 380/220v, the transmitting-out end of an electrowelding transformer is connected to 75 v, and it is presumed that a point A is positive, point A-D1-RL-direct current electric reactor-direct current diverter-D3-75v-negtive electrode is achieved; otherwise, when a point O is positive, O-D2-RL-direct current electric reactor-direct current diverter-D4-point A is achieved, meanwhile the alternating current conducts alternating breakover till ending according to the variable quantity of 50 HZ per second, and thus smooth and steady direct current is shifted in and output.
Description
Technical field
The present invention relates to a kind of method regulating direct current welding current, belong to welder equipment technical field of improvement.
Background technology
Energy-conservation two aspects during energy-conservation and load when electric welding machine energy-conservation is embodied in zero load.Time unloaded, main circuit, blower fan etc. all can be entered halted state by electric welding machine, and no-load power consumption only has several watts; Efficiency during electric welding machine load is higher than thyristor rectification welder.
Because the operating frequency of electric welding machine is more than 20KHZ, there is response speed faster, multiple stage can be subdivided into the droplet transfer and control.To CO2 gas shield, significantly can reduce splashing, paired pulses consumable electrode MIG/MAG weldering can carry out the stability of control jet transition effectively.
Use A.C. welder, there will be when workpiece welds; Weld defect: the phenomenon of discontinuous, the not fine and close or bad connection of the metal produced in welding point in welding process.
1. lack of penetration: to butt weld, the phenomenon of the root of joint incomplete penetration during welding, also refers to that weld penetration does not reach the phenomenon of designing requirement.
2. incomplete fusion: during melting welding, between welding bead and mother metal or between welding bead and welding bead, the part of complete melted join, resistance spot welding refers to the part of complete melted join between mother metal and mother metal.4. slag inclusion: postwelding remains in the welding slag in weld seam.
3. pore: during welding, the bubble in molten bath fails when solidifying overflow and left behind formed hole.Pore can be divided into porosity, wormhole and pinhole etc.
4.. undercut: the groove that the mother metal position along toe of weld produces or depression.
Power consumption, the electricity charge give more.Generally can only soldering acid type welding rod on use welding rod.Current adjustment is inconvenient, and individual event is powered and caused unbalanced power supply, affects other equipment work.
Summary of the invention
The object of the invention is: a kind of method regulating direct current welding current is provided, the change of size of current can be realized fast, to overcome the deficiencies in the prior art.
Technical scheme of the present invention
Regulate a method for direct current welding current, the method adopts in the middle of welding transformer iron core and adds movable core, and adjustment eddy current can realize size of current, or employing is not with movable core, negative or positive electrode is connected a resistance box, and adjusting resistance value size, realizes size of current.
Aforesaidly a kind ofly regulate in the method for direct current welding current, described is not with movable core, negative or positive electrode is connected a resistance box, when the concrete grammar of adjusting resistance value size is pressurization electrified regulation and power-off cooling carry out simultaneously, prevent joint portion to float, rosin joint.Be best suited for flexible material, wire rod thermocompression bonding, scolding tin welding and resin-bonded.Show the temperature in each stage, the closed loop online feedback of thermocouple controls the accuracy improving temperature, and accuracy of temperature control is at 2-5%.
Owing to adopting technique scheme, compared with prior art, welding pressure of the present invention, weld interval, welding temperature can fine adjustment, and multiple solder joint once completes, and efficiency is high, uniformity good, weld strength is high, solder joint is attractive in appearance, simple to operate.Power consumption, the electricity charge give more.Current adjustment is convenient, solves individual event and powers and cause unbalanced power supply, achieve and do not affect other equipment work, be applicable to various trade mark welding rod and realize all-position welding.
Detailed description of the invention
The present invention below with being described in further detail, but not as any limitation of the invention.
Embodiments of the invention: a kind of method regulating direct current welding current, the method adopts in the middle of welding transformer iron core and adds movable core, adjustment eddy current can realize size of current, or employing is not with movable core, negative or positive electrode is connected a resistance box, adjusting resistance value size, realizes size of current.
Wherein be not with movable core, negative or positive electrode connected a resistance box, when the concrete grammar of adjusting resistance value size is pressurization electrified regulation and power-off cooling carry out simultaneously, prevent joint portion to float, rosin joint.Be best suited for flexible material, wire rod thermocompression bonding, scolding tin welding and resin-bonded.Show the temperature in each stage, the closed loop online feedback of thermocouple controls the accuracy improving temperature, and accuracy of temperature control is at 2-5%.
Specific implementation process is
In order to make at work more can workpiece do better, determine to make AC welding set into DC welder, the technical staff in mechanical repair plant, through looking for data, according to the job requirement of DC welder, is not changing in the operation technique of DC welder
Increase by four 200A diodes, be arranged on aluminium sheet, its thermolysis forms a single-phase bridge circuit, and then the output of AC welding set is received the input of bridge circuit, replace through diode, conducting, output has been exactly direct current.The key property of diode diode is unilateral conduction, and namely under the effect of forward voltage, conducting resistance is very little; And conducting resistance is very big or infinitely great under backward voltage effect.
Increase fin in order to help IC dissipate running time the heat that produces, also get more and more with the heat that the heat abstractor of improving work efficiency sends, in order to maintain its normal duty, the action of heat exchange is also just suitable important.Such as water-cooled, air-cooled, freeze cycle and the immersion boiling cooling etc. of various different cooling technology all may with solving heat dissipation problem.So increase fin, reduce temperature, play cooling effect.
Once added overvoltage protection device alternate overvoltage to be reduced greatly, and compared with common MOA, can 60% ~ 70% be reduced, reliably protect the phase insulation of motor.(the same with the MOA of series gap; owing to have employed the structure of zinc oxide valve plate and gap series; improve the service life of protector, and all can safe operation under making protector occur the states such as single-phase earthing, intermittence arc grounding and resonance overvoltage in system.
Increasing reactor. it has supervision electrical network insulation against ground level; 2., once electric leakage, trip rapidly; 3. add zero-sequence reactor (similar arc suppression coil) to compensate low voltage electric network capacitive earth current etc. and increase voltmeter and have that precision is high, speed is fast, input impedance is large, numerical monitor, convenient reading are accurate, antijamming capability is strong, Automatic survey degree advantages of higher.
Size of current can select two kinds of regulative modes
1, add movable core in the middle of welding transformer iron core, adjustment eddy current can realize size of current.
2, be not with movable core, negative or positive electrode is connected a resistance box, and adjusting resistance value size, realizes size of current
The heat affecting that it has intensification immediate stability, Local Instantaneous mode of heating can suppress surrounding component well.During pressurization electrified regulation and power-off cooling carry out simultaneously, prevent joint portion to float, rosin joint.Be best suited for flexible material, wire rod thermocompression bonding, scolding tin welding and resin-bonded.Show the temperature in each stage.The closed loop online feedback of thermocouple controls the accuracy improving temperature, and accuracy of temperature control is about 3%.Welding pressure, weld interval, welding temperature can fine adjustment.Multiple solder joint once completes, and efficiency is high, uniformity good, weld strength is high, solder joint is attractive in appearance, simple to operate.Power consumption, the electricity charge give more.Current adjustment is convenient, solves individual event and powers and cause unbalanced power supply, achieve and do not affect other equipment work.
Be applicable to various trade mark welding rod and realize all-position welding.
Claims (2)
1. one kind regulates the method for direct current welding current, it is characterized in that: the method adopts in the middle of welding transformer iron core and adds movable core, adjustment eddy current can realize size of current, or employing is not with movable core, negative or positive electrode is connected a resistance box, adjusting resistance value size, realizes size of current.
2. a kind of method regulating direct current welding current according to claim 1, it is characterized in that: described is not with movable core, negative or positive electrode is connected a resistance box, when the concrete grammar of adjusting resistance value size is pressurization electrified regulation and power-off cooling carry out simultaneously, prevent joint portion to float, rosin joint, be best suited for flexible material, wire rod thermocompression bonding, scolding tin welding and resin-bonded, show the temperature in each stage, the closed loop online feedback of thermocouple controls the accuracy improving temperature, and accuracy of temperature control is at 2-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787429.XA CN104607763A (en) | 2014-12-19 | 2014-12-19 | Direct current welding current adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787429.XA CN104607763A (en) | 2014-12-19 | 2014-12-19 | Direct current welding current adjusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104607763A true CN104607763A (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410787429.XA Pending CN104607763A (en) | 2014-12-19 | 2014-12-19 | Direct current welding current adjusting method |
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| CN (1) | CN104607763A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714639A (en) * | 2021-09-08 | 2021-11-30 | 王秋 | Energy-concerving and environment-protective industrial laser welding equipment |
Citations (8)
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| CN1846923A (en) * | 2005-04-17 | 2006-10-18 | 肖远宗 | Single-phase energy-saving DC electric welder |
| US20060243716A1 (en) * | 2005-04-27 | 2006-11-02 | Lincoln Global, Inc | Selector device for electric arc welder |
| CN101020272A (en) * | 2007-03-13 | 2007-08-22 | 黄汝明 | Annular efficient DC arc welder |
| EP1880788A2 (en) * | 2006-07-21 | 2008-01-23 | EWM Hightec Welding GmbH | Light arc welding device |
| CN101147998A (en) * | 2007-11-01 | 2008-03-26 | 重庆润通动力有限公司 | Internal combustion direct current arc welding machine current regulator |
| CN201069690Y (en) * | 2007-07-31 | 2008-06-04 | 黄汝明 | Ring efficient DC arc welding device |
| WO2010005634A1 (en) * | 2008-07-08 | 2010-01-14 | Illinois Tool Works Inc. | Enhanced power factor correction for welding and cutting power supplies |
| CN103624369A (en) * | 2013-11-13 | 2014-03-12 | 无锡汉神电气有限公司 | Regulating circuit of welding currents of CO2 electric arc welder |
-
2014
- 2014-12-19 CN CN201410787429.XA patent/CN104607763A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846923A (en) * | 2005-04-17 | 2006-10-18 | 肖远宗 | Single-phase energy-saving DC electric welder |
| US20060243716A1 (en) * | 2005-04-27 | 2006-11-02 | Lincoln Global, Inc | Selector device for electric arc welder |
| EP1880788A2 (en) * | 2006-07-21 | 2008-01-23 | EWM Hightec Welding GmbH | Light arc welding device |
| CN101020272A (en) * | 2007-03-13 | 2007-08-22 | 黄汝明 | Annular efficient DC arc welder |
| CN201069690Y (en) * | 2007-07-31 | 2008-06-04 | 黄汝明 | Ring efficient DC arc welding device |
| CN101147998A (en) * | 2007-11-01 | 2008-03-26 | 重庆润通动力有限公司 | Internal combustion direct current arc welding machine current regulator |
| WO2010005634A1 (en) * | 2008-07-08 | 2010-01-14 | Illinois Tool Works Inc. | Enhanced power factor correction for welding and cutting power supplies |
| CN103624369A (en) * | 2013-11-13 | 2014-03-12 | 无锡汉神电气有限公司 | Regulating circuit of welding currents of CO2 electric arc welder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714639A (en) * | 2021-09-08 | 2021-11-30 | 王秋 | Energy-concerving and environment-protective industrial laser welding equipment |
| CN113714639B (en) * | 2021-09-08 | 2024-03-01 | 王秋 | Energy-saving and environment-friendly industrial laser welding equipment |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150513 |