CN102522905A - Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method - Google Patents
Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method Download PDFInfo
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- CN102522905A CN102522905A CN2011103829963A CN201110382996A CN102522905A CN 102522905 A CN102522905 A CN 102522905A CN 2011103829963 A CN2011103829963 A CN 2011103829963A CN 201110382996 A CN201110382996 A CN 201110382996A CN 102522905 A CN102522905 A CN 102522905A
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- intermediate frequency
- resistance welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to a welding device for welding chains, such as anchor chains, in particular to an intermediate frequency direct-current power supply of a chain resistance welding device and an intermediate frequency direct-current resistance welding method. The intermediate frequency direct-current power supply of the chain resistance welding device comprises an inverter; the input end of the inverter is connected with a three-phase alternating current power frequency power supply; and an intermediate frequency pulsed direct-current voltage of which the frequency is 1000 Hz is output by the output end of the inverter through a transformer and a rectification circuit. Compared with the traditional alternating current welding of which the power frequency can be controlled, the three-phase load is balanced, the power factor is close to 1, and the intermediate frequency direct-current power supply of a chain resistance welding device and the intermediate frequency direct-current resistance welding method have no pollution on the power supply, and the power consumption can be reduced; and compared with the traditional resistance welding, the welding control current is more accurate.
Description
Technical field
The present invention relates to one be used for the welding of chain such as anchor chain welding equipment and method, specifically be a kind of intermediate frequency DC power supply and intermediate frequency D.C. resistance soldering method of chain electric resistance welding equipment.
Background technology
The welding of chain all adopts the method for butt welding to come production and processing at present; Butt welding is a kind of electric resistance welding method to banjo fixing butt jointing; Electric resistance welding is divided into upset butt welding and two kinds of forms of flash butt welding again, and in conventional method, the welding equipment power supply of these two kinds of Type of Welding all adopts power frequency supply.In welding process, power frequency supply often receives the influence of voltage ripple of power network, causes the changing value of welding current bigger, directly influences weldquality.In addition, the industrial frequency AC welding has the generation of inductance and the puzzlement of zero passage, and heat efficient can not make full use of, and causes welding temperature instability in the chain production process.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and receives the influence of voltage ripple of power network little, can improve the chain welding quality, reduces intermediate frequency DC power supply and intermediate frequency D.C. resistance soldering method to the chain electric resistance welding equipment of power consumption.
The intermediate frequency DC power supply of chain electric resistance welding equipment of the present invention includes an inverter; The input of inverter connects the three-phase alternating current power frequency supply; The output of inverter is exported a medium-frequency pulse direct voltage that frequency is 1000Hz through transformer and rectification circuit.
Chain intermediate frequency D.C. resistance soldering method of the present invention is the three-phase alternating current power frequency supply to be passed through the medium-frequency pulse DC power supply that inverter, transformer and rectification circuit are transformed to 1000Hz, with its working power as the chain electric resistance welding.
Power supply of the present invention and method have the following advantages:
1, exchange weldering with traditional power frequency may command and compare, (1) its threephase load balance reduces the requirement to electric power system power, does not cause the spike overload mutually to any independent one, satisfies the requirement of preferential ower rate, has reduced production cost; (2) power factor approaches 1, and no inductance value need not to adjust power factor, and the efficient of welding than traditional industrial frequency electric resistance improves greatly; (3) pollution-free to power supply, power supply needn't be provided separately, can use in the lump with mechanical automation welding tooling control system; (4) reduced power consumption, low to the power supply power demand in workshop, be merely 2/3 of traditional power frequency secondary commutation electric resistance welding; Can reduce number of cables; Reduce cost, owing to significantly increased the effective value of the source of welding current, significantly reduced the time of actual welding simultaneously.
2, the intermediate frequency transformer that adopts is merely 1/3 of AC transformer quality and volume in the legacy equipment; Improved the heat input efficiency; The direct voltage of welding transformer output does not have the interference of inductance and zero passage; The efficient of heat improves greatly, and distinctive loop can also effectively be protected inverter and transformer.
3, compare with the traditional resistor weldering; The welding Control current is more accurate; Inversion system is influenced by electric power system hardly, even under the situation of voltage ripple of power network ± 15%, can realize that still welding current accurately is controlled in 2% fluctuation range; Do not receive the influence (no inductance loss) of workpiece shape and workpiece material, the adjustment precision can improve 20 times with supervision ratio of precision AC system.
Description of drawings
Fig. 1 is the circuit theory diagrams of the intermediate frequency DC power supply of chain electric resistance welding equipment of the present invention.
Embodiment
As shown in the figure, power supply of the present invention is the medium-frequency pulse DC power supply that three-phase alternating current power frequency supply process inverter 1, transformer 2 and rectification circuit 3 is transformed to 1000Hz, with its working power as the chain electric resistance welding.
Claims (2)
1. the intermediate frequency DC power supply of a chain electric resistance welding equipment; It is characterized in that: it includes an inverter; The input of inverter connects the three-phase alternating current power frequency supply, and the output of inverter is exported a medium-frequency pulse direct voltage that frequency is 1000Hz through transformer and rectification circuit.
2. a chain intermediate frequency D.C. resistance soldering method is characterized in that: the three-phase alternating current power frequency supply is passed through the medium-frequency pulse DC power supply that inverter, transformer and rectification circuit are transformed to 1000Hz, with its working power as the chain electric resistance welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103829963A CN102522905A (en) | 2011-11-28 | 2011-11-28 | Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103829963A CN102522905A (en) | 2011-11-28 | 2011-11-28 | Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522905A true CN102522905A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103829963A Pending CN102522905A (en) | 2011-11-28 | 2011-11-28 | Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522905A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2936528Y (en) * | 2006-07-18 | 2007-08-22 | 徐家庆 | Intermediate frequency contravariant resistance welder |
| CN202406046U (en) * | 2011-11-28 | 2012-08-29 | 镇江市黄墟锚链有限公司 | Medium frequency direct current power supply for chain resistance welding device |
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2011
- 2011-11-28 CN CN2011103829963A patent/CN102522905A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2936528Y (en) * | 2006-07-18 | 2007-08-22 | 徐家庆 | Intermediate frequency contravariant resistance welder |
| CN202406046U (en) * | 2011-11-28 | 2012-08-29 | 镇江市黄墟锚链有限公司 | Medium frequency direct current power supply for chain resistance welding device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |