CN1068987A - Arc stabilizer of intermediate frequency - Google Patents
Arc stabilizer of intermediate frequency Download PDFInfo
- Publication number
- CN1068987A CN1068987A CN 91107257 CN91107257A CN1068987A CN 1068987 A CN1068987 A CN 1068987A CN 91107257 CN91107257 CN 91107257 CN 91107257 A CN91107257 A CN 91107257A CN 1068987 A CN1068987 A CN 1068987A
- Authority
- CN
- China
- Prior art keywords
- intermediate frequency
- arc stabilizer
- arc
- welding
- power
- 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
Images
Landscapes
- Generation Of Surge Voltage And Current (AREA)
- Arc Welding Control (AREA)
Abstract
A kind of arc stabilizer of intermediate frequency is characterized in the intermediate frequency low-tension supply, by isolated variable, is parallel to the output of AC welding set.During welding, the industrial-frequency alternating current passing zero moment, arc column can blow-out owing to the existence of electric current of intermediate frequency continues to keep ionized state.The frequency height of electric current of intermediate frequency own, zero passage is rapid, and the ion in the arc column has little time compound, also can blow-out.It does not need to detect, control, more can be because of not detecting control failure blow-out.This apparatus structure is simple, cost is low, performance is good, easy to use, and reliable operation has an obvious energy-saving effect with AC welding set is supporting.The energy wide popularization and application has remarkable economic efficiency and social benefit.
Description
The present invention relates to the stabilising arc technology of A.C. welder, this arc stabilizer is parallel to the output of AC welding set, when using the basic electrode welding, can blow-out.
AC welding set is compared with DC welder, has efficient, energy-conservation, inexpensive and be easy to advantage such as maintenance.Replacing DC welder with AC welding set is an important energy saving development trend.But because alternating current has the problem of zero passage, electric arc is stable inadequately, and therefore, AC welding set can not use basic electrode that important metal structure is welded, and AC welding set is used be restricted.In order to address the above problem, one of employing way always is additional arc stabilizer, the arc stabilizer that uses all is a pulse mode at present, as Luo Jin as waiting " ac arc wedling machine of pulse stabilising arc ", " electric welding machine " second phase in 1987, Chang Zuolou is translated from " CBAPO Ч-Π P-BO " " interchange arc stabilizer ", " electric welding machine " 1989 the 5th phases, and a kind of novel arc-maintaining device of Mao Sanke " opinion to hand over straight "-introduce " report of " electric welding machine " third phase nineteen ninety; its basic principle is to detect the arc-welding current over-zero constantly, controls the instantaneous in addition high-voltage pulse electric arc that ignites again.Arc stabilizer is generally by detecting, amplify, regulate, control, triggering compositions such as high-voltage pulse output.Because detecting is the electric current greatly that the such wide region of 30A-600A changes, add the serious distortion of waveform that the intrinsic characteristic of AC welding set causes, and when welding, because molten drop to constantly repeatedly the influence of factors such as short circuit that the molten bath transition causes, is given and is detected and control brings certain degree of difficulty.Reach comparatively perfect performance, necessarily require the circuit of more complicated, thereby cause cost to increase.About 500 yuan of low capacity AC welding set cost, 2000 yuan only of big capacity AC welding sets, the arc stabilizer cost up just lose its Practical significance.Fairly simple on the other hand arc stabilizer then performance is not good, tends to make detect control failure and cause blow-out.In a word, performance and price problem are to make arc stabilizer fail to obtain one of fine major reason of applying so far.
The objective of the invention is provides a kind of arc stabilizer of intermediate frequency at the deficiencies in the prior art, is characterized in intermediate frequency (tens of kilocycle) low pressure (tens of volt) power supply, by isolated variable, is parallel to the output of AC welding set.During welding, the industrial-frequency alternating current passing zero moment, arc column owing to the existence of electric current of intermediate frequency continues to keep ionized state can blow-out, the frequency height of electric current of intermediate frequency own, zero passage is rapid, the ion in the arc column has little time compound, also blow-out can not take place.It does not need to detect control, more can not cause blow-out because of the control failure.
Arc stabilizer of intermediate frequency provided by the invention such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4
Fig. 1 is arc stabilizer of intermediate frequency (split type) structural representation.
Fig. 2 is arc stabilizer of intermediate frequency (built-in type) structural representation.
(1) footing, (2) shell, (3) input terminal, (4) base plate, (5) pillar, (6) power transformer, (7) printed circuit board (PCB) and electronic devices and components, (8) isolating output transformer, (9) lead-out terminal, (10) AC welding set, (11) arc stabilizer, (12) pillar.
Input terminal of arc stabilizer of intermediate frequency (3) and lead-out terminal (9) are installed on the left and right sides panel of shell (2), power transformer (6), printed circuit board (PCB) and electronic devices and components (7) and isolating output transformer (8) are installed on the base plate (4), base plate (4) constitutes one by oscillator with shell bottom plate with pillar (5) support and connection, the electronic circuit integral body that intermediate frequency output and isolated variable are formed has the heat radiation of air vent or shutter on the side of shell.
Arc stabilizer of intermediate frequency also can be installed in the AC welding set, is connected the gap of welding machine medial surface with pillar (12), and the input terminal of arc stabilizer and the input terminal of welding machine are connected in parallel, and the lead-out terminal of arc stabilizer and welding terminal are connected in parallel.Also can save the power transformer in the arc stabilizer, at this moment, the additional winding of welding machine be received the input of rectifier bridge in the printed circuit board (PCB) of arc stabilizer, just can power to arc stabilizer.
Fig. 3 is the electronic circuitry of arc stabilizer of intermediate frequency.
Integrated circuit NAND gate YF
1-3With resistance R
1, R
2, capacitor C
1Form multivibrator, produce continuous square wave, it exports one the tunnel through diode D
1, resistance R
3, capacitor C
2And NAND gate YF
4Receive high-power FET T after the shaping
1Gate pole; Another road is through diode D
2, resistance R
4, capacitor C
3And NAND gate YF
5Shaping, YF
6Receive high-power FET T after anti-phase
2Gate pole.T
1And T
2The composition intermediate frequency is recommended output and is received isolating output transformer B
1Former limit, B
1Pay limit and C
7Receive the lead-out terminal of arc stabilizer after the series connection, R
5, R
6, C
4, C
5Shield C
7Play frequency isolation and metering function.
Electric network source is from power transformer B
2Former limit input transformation, B
2Pay limit output through diode D
3-6The rectifier bridge rectification of forming, capacitor C
6, C
8After the filtering, output low-voltage DC V
+, power to arc stabilizer.When arc stabilizer of intermediate frequency and AC welding set are made of one (built-in type), can be with B
2Save, by the additional winding power supply of AC welding set.During work, the output of arc stabilizer is parallel to the output of AC welding set, helps the AC welding set stable arc.
Multivibrator is except forming with the integrated circuit NAND gate, and the also available circuit of being made up of triode or multifunctional trigger replaces T
1And T
2Except with the high-power FET, also available large power triode or power integrated circuit replace.
Fig. 4 is the illustration figure of arc stabilizer of intermediate frequency circuit.
IC
1Be time-base integrated circuit NE555, IC
2, IC
3Be power switch circuit TWH 8751, IC
1With R
1, R
2, R
3And C
1, C
2, C
3Form multivibrator, produce continuous square wave, export one the tunnel through D
1, R
4, C
5And IC
2Carry out shaping and power amplification; Another road is through D
2, R
5, C
8And IC
3Carry out shaping and power amplification.IC
2And IC
3Form intermediate frequency and recommend output, receive isolating output transformer B
1Former limit, the same Fig. 4 of remaining circuit.
The present invention has following advantage:
1. arc stabilizer of intermediate frequency adopts conventional electronic circuit, by oscillator, intermediate frequency output and isolated variable are formed, have simple in structure, cost low (every material cost about 50 yuan, an AC welding set adds that the cost of arc stabilizer is 60% for DC welder only), performance is good, (general welder all can weld primary structure) easy to use, reliable operation.
2. energy-conservation, can realize " straight " to hand over, with the also available AC welding set band of the basic electrode arc stabilizer of intermediate frequency welding that DC welder uses, tie 427 welding rods or high-strength knot 507 welding rods as using low hydrogen type, the 16Mn steel member of heavy metal structures is welded obtain high-intensity welding line joint.Compare with the rotation DC welder, about 4500 degree of annual every economize on electricity are compared with the rectification DC welder, about 600 degree of annual every economize on electricity, estimate if our rotation direct current and rectification DC welder have 10,000 to be exchanged the stabilising arc welding machine and replace every year respectively, then can economize on electricity every year reach 5,000 ten thousand spend more than.
3. do not have arc blow, overcome the shortcoming of DC welder.
4. allow to weld, for plate sheet welding provides desirable means, as using φ 2.5 welding rods, the thin plate of welding 0.8mm under the standard of 30 Ampere currents with little current strength.
5. under low no-load voltage (50V) condition, can the reliable starting the arc weld with stable, for manufacturing and designing the low no-load voltage of a new generation, the AC welding set of high power factor has been created advantage, thereby further energy-conservation, economizes material, and the expectation AC welding set is (as BX
1-250) power factor can be brought up to about 0.7 from present 0.5.
Embodiment:
Arc stabilizer of intermediate frequency of the present invention, simple in structure, easily manufactured, shell, panel, base plate and non-standard component all can be at general welding machine manufactory processing and fabricatings, and surface-mounted integrated circuit and electronic component etc. all can be bought in market, and those skilled in the art all can be pressed accompanying drawing assembling, debugging and ordinary production.
Claims (4)
1, a kind of arc stabilizer of intermediate frequency [1], the input terminal (3) and the lead-out terminal (9) that it is characterized in that this arc stabilizer of intermediate frequency are installed on the left and right sides panel of shell (2), power transformer (6), printed circuit board (PCB) and electronic devices and components (7) and isolating output transformer (8) are installed on the base plate (4), base plate (4) constitutes one by oscillator with shell bottom plate with pillar (5) support and connection, the electronic circuit integral body that intermediate frequency output and isolated variable are formed, have the heat radiation of air vent or shutter on the side of shell, arc stabilizer of intermediate frequency also can be contained in the AC welding set.
2, according to the described arc stabilizer of intermediate frequency of claim 1, it is characterized in that this arc stabilizer of intermediate frequency also can be contained in the AC welding set, be connected the gap of welding machine medial surface with pillar (12), the input terminal of arc stabilizer and the input terminal of welding machine are connected in parallel, the lead-out terminal of arc stabilizer and welding terminal are connected in parallel, can save the power transformer in the arc stabilizer, the additional winding of welding machine is received the input of rectifier bridge in the printed circuit of arc stabilizer, just can be powered to arc stabilizer.
3, according to claim 1 or 2 described arc stabilizer of intermediate frequency, the electronic circuit that it is characterized in that this arc stabilizer of intermediate frequency is by integrated circuit NAND gate YF
1-3With resistance R
1, R
2, capacitor C
1Form multivibrator, produce continuous square wave, it exports one the tunnel through diode D
1, resistance R
3, capacitor C
2And NAND gate YF
4Receive high-power FET T after the shaping
1Gate pole, another road is through diode D
2, resistance R
4, capacitor C
3And NAND gate YF
5Shaping, YF
6Receive high-power FET T after anti-phase
2Gate pole, T
1And T
2The composition intermediate frequency is recommended output and is received isolating output transformer B
1Former limit, B
1Pay limit and C
7Receive the lead-out terminal of arc stabilizer after the series connection, electric network source is from power transformer B
2Transformation is through diode D
3-6The rectifier bridge rectification of forming, capacitor C
6, C
8After the filtering, output low-voltage DC V
+Power to arc stabilizer.
4, it is characterized in that according to claim 1 or 3 described arc stabilizer of intermediate frequency the multivibrator of this arc stabilizer of intermediate frequency can use the circuit be made up of triode or multifunctional trigger to replace, also available large power triode of FET or power integrated circuit replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107257 CN1068987A (en) | 1991-07-27 | 1991-07-27 | Arc stabilizer of intermediate frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107257 CN1068987A (en) | 1991-07-27 | 1991-07-27 | Arc stabilizer of intermediate frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1068987A true CN1068987A (en) | 1993-02-17 |
Family
ID=4908612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91107257 Pending CN1068987A (en) | 1991-07-27 | 1991-07-27 | Arc stabilizer of intermediate frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068987A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179597A (en) * | 2011-04-07 | 2011-09-14 | 上海威特力焊接设备制造股份有限公司 | Arc stabilizer of AC argon arc welding machine |
| CN102962548A (en) * | 2012-11-22 | 2013-03-13 | 上海广为拓浦电源有限公司 | Pulse arc-stabilizing device of inverting alternating-current square-wave argon tungsten-arc welding machine |
| CN103997222A (en) * | 2014-05-07 | 2014-08-20 | 国家电网公司 | DC equal-proportion isolated power supply |
| CN105195863A (en) * | 2015-10-28 | 2015-12-30 | 黄超发 | Micro alternating current welding machine |
| CN111906423A (en) * | 2020-08-05 | 2020-11-10 | 芜湖辉悦机械设计有限公司 | DC arc welding machine |
-
1991
- 1991-07-27 CN CN 91107257 patent/CN1068987A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179597A (en) * | 2011-04-07 | 2011-09-14 | 上海威特力焊接设备制造股份有限公司 | Arc stabilizer of AC argon arc welding machine |
| CN102962548A (en) * | 2012-11-22 | 2013-03-13 | 上海广为拓浦电源有限公司 | Pulse arc-stabilizing device of inverting alternating-current square-wave argon tungsten-arc welding machine |
| CN102962548B (en) * | 2012-11-22 | 2015-04-08 | 上海广为焊接设备有限公司 | Pulse arc-stabilizing device of inverting alternating-current square-wave argon tungsten-arc welding machine |
| CN103997222A (en) * | 2014-05-07 | 2014-08-20 | 国家电网公司 | DC equal-proportion isolated power supply |
| CN105195863A (en) * | 2015-10-28 | 2015-12-30 | 黄超发 | Micro alternating current welding machine |
| CN111906423A (en) * | 2020-08-05 | 2020-11-10 | 芜湖辉悦机械设计有限公司 | DC arc welding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101447737B (en) | Constant power output direct current transforming circuit | |
| CN104601033A (en) | High-voltage pulse type magnetron power source | |
| CN101827488A (en) | Fluorescent lamp electronic ballast and lighting device | |
| CN1068987A (en) | Arc stabilizer of intermediate frequency | |
| CN202053010U (en) | IGBT digital and multifunctional gas shielded arc-welding soft switch inversion power supply | |
| CN201332531Y (en) | DC (direct current) converting circuit | |
| CN2095730U (en) | Medium frequency arc stabilizer | |
| CN201491363U (en) | Novel power supply of plasma cutting machine | |
| CN1045515C (en) | Electronic ballast of gas discharge lamp | |
| CN100464484C (en) | Pre-correcting power for power factor | |
| CN2360203Y (en) | Argon arc welding machine with high pressure pulse arc striking function | |
| CN212518826U (en) | Resonant rectification circuit | |
| CN1263430A (en) | Circuit device for controlling at least one low-voltage discharge lamp | |
| CN2183242Y (en) | Energy-saving safety AC arc-welding set | |
| CN200942451Y (en) | Automatic cutting and setting electricity-saving device for welding machine | |
| CN110198138A (en) | A kind of fast and reliable combustion-supporting circuit of magnetically controlled DC sputtering plated film power supply | |
| Chang et al. | Development of lighting source with CCFL in T8-tube | |
| CN201307830Y (en) | Frequency conversion circuit | |
| CN103683899B (en) | The PFC topological circuit of a kind of double-polarity control and implementation method | |
| CN2131247Y (en) | Power inverter with duplex rectifying circuit | |
| CN101355310B (en) | Frequency-converting circuit | |
| CN208691152U (en) | A kind of explosion-proof inverter type welder | |
| Chang et al. | A novel design of U-shaped CCFL in T8 tube to replace traditional fluorescent lamp | |
| CN2206692Y (en) | Electric saver for a.c. welding machine | |
| CN101730361A (en) | Digital electronic ballast circuit for gas discharge cold light source lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |