CN100348354C - Arc welding power supply for welding pipeline - Google Patents
Arc welding power supply for welding pipeline Download PDFInfo
- Publication number
- CN100348354C CN100348354C CNB031161766A CN03116176A CN100348354C CN 100348354 C CN100348354 C CN 100348354C CN B031161766 A CNB031161766 A CN B031161766A CN 03116176 A CN03116176 A CN 03116176A CN 100348354 C CN100348354 C CN 100348354C
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- present
- welding
- rectifier
- arc welding
- output transformer
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Abstract
The present invention relates to an arc welding power supply for welding pipelines, which mainly comprises an output transformer having two main windings and two auxiliary windings on the secondary level, and a rectifier with a radiator and four contained rectifying tubes corresponding to the four windings of the output transformer. An air-tight device is arranged between the radiator of the rectifier and a cooling device composed of a rainproof ventilating shutter. The present invention achieves the purposes of outputting high voltage in an electric arc working zone of a main cellulose welding stick and achieving the maximum volt/ampere characteristic oblique lowering envelope in an electric arc working zone of a common welding stick. Compared with the prior art, the present invention has the advantages of lighter weight, quicker arc formation, large electric arc blowing force, large penetrating force, favorable electric arc stability, little splash, automatic adhesion, no overheating welding sticks, easy disconnection and high success ratio. The present invention ensures 100 percent of load ratio and simultaneously achieves high protecting level (IP23). The present invention is suitable for open work, field construction and electricity supply in wide range.
Description
Technical field
The present invention relates to a kind of Arc Welding Power, particularly a kind of Arc Welding Power that is used for pipeline welding.
Background technology
Is the requirement with property for heavy caliber length apart from the needed Arc Welding Power of open-air manual arc welding technology of gas pipeline.It wants cube little, and is in light weight, high capacity rate (100%) and the high-protection level (Arc Welding Power of the light 400A contravariant of IP21～IP23).
Technology [1] U.S. formerly, Miller electric corporation (Miller Electric Mfg.CO.) provide a kind of Arc Welding Power (referring to " Invision456p and Phoenix456cc/cv " product description, TM-2213A, 1997,9).As a kind of multipurpose Arc Welding Power, though its fan-out capability and degree of protection are all relatively good, but, during as manual welding (SMAW), its V-I (volt-ampere) characteristic curve is undesirable, particularly ((voltage of 200A～400A) is low, and this will influence speed of welding and quality and cost performance of product for the big electric current of voltage ratio during 50A～150A) at little electric current.Simultaneously, its volume is also bigger than normal.
Technology [2] China formerly, " Times Group Co. " provides its fan-out capability of a kind of ZX7-400B Arc Welding Power (referring to its products instruction [PE20-400] 1998,1) only to reach 60%, degree of protection has reached IP21, and the V-I characteristic curve is (50A～150A) still undesirable between cellulose welding rod arc welding Current Zone.
Summary of the invention
The present invention is in order to overcome the deficiency in the above-mentioned technology formerly, a kind of Arc Welding Power that is used for pipeline welding is provided, between main cellulose welding rod arc welding Current Zone (50A-150A), adopt local high output voltage, and in common welding rod welding current interval (200A～400A), adopt the envelope curve of maximum V/A characteristic oblique deascension,, guarantee the optimization of cost and performance to reduce maximum power capabilities.Referring to Fig. 3.
Arc Welding Power of the present invention mainly comprises: output transformer 1, rectifier 2, gas check 3 and cooling device 4.
Said output transformer 1 secondary contains two main winding W
2, W
3With two auxiliary winding W
4, W
5Said rectifier 2 has radiator 201, contains and four winding W of 1 level of output transformer
2, W
3, W
4, W
5Corresponding four rectifying tube V
D1, V
D2, V
D3, V
D4Said cooling device 4 is structures of rainproof ventilation shutter; Gas check 3 places between the radiator 201 and cooling device 4 of rectifier 2.As shown in Figure 1.
Beneficial effect of the present invention:
As the structure of above-mentioned Arc Welding Power of the present invention, output transformer 1 secondary has four winding W of major-minor
2, W
3, W
4, W
5, Duoed two auxiliary winding W than technology formerly
4, W
5, this has just improved the output voltage of welding current in the cellulose welding rod welding current interval of 50A～150A.Arc Welding Power of the present invention shown in Fig. 3 V-I curve has reached 80 volts at this interval voltage.Than formerly technology [1] and [2] are all high.Therefore, the Arc Welding Power starting the arc of the present invention is fast, the success rate height, and arc stability is good; Because Arc Welding Power of the present invention is equipped with gas check 3 between the radiator 201 of rectifier 2 and cooling device 4, make flow through radiator 201 cross sections the cold air flow-rate ratio formerly the structure of technology fallaway type increased 30%～50%, also just increased heat-exchange capacity accordingly, guarantee under the condition of small size low capacity, realize 100% load factor; Owing in the Arc Welding Power of the present invention, contain the cooling device 4 of rainproof ventilation shutter, make its cooling effectiveness height again, blow force of arc is big, and penetration power is strong, good springiness, and it is little to splash, antiseized automatically, and welding rod can be not overheated, frees easily.Guarantee Arc Welding Power when reaching 100% load factor, reached high-protection level (IP23).
In a word, Arc Welding Power of the present invention adapts to open work, field construction and wide region power supply.Than the weight saving of technology [1] formerly 10%, volume has reduced 24%.Compare with technology [2] formerly, fan-out capability again it 60% bring up to 100%, degree of protection is brought up to IP23 by its IP21.Be applicable to the arc welding and the cutting of iron and steel, stainless steel, steel alloy and other metals.It is a kind of desirable Arc Welding Power.
Description of drawings
Fig. 1 is the structural representation of Arc Welding Power of the present invention.
Fig. 2 is the 401 shape and structure schematic diagrames of the blade in the cooling device 4 among Fig. 1.
Fig. 3 is the V-I performance diagram that Arc Welding Power of the present invention obtains.
The specific embodiment
Structure as shown in Figure 1, 2.
Said output transformer 1 elementary by winding W
1-1, W
1-2Constitute, secondary by two main winding W
2, W
3With two auxiliary winding W
4, W
5Constitute.Four secondary winding W
2, W
3, W
4, W
5Respectively with rectifier 2 in four rectifying tube V
D1, V
D2, V
D3, V
D4Link to each other.At two auxiliary winding W
4, W
5With two rectifying tube V
D3, V
D4Be in series with current-limiting inductance L between the connection respectively
1, L
2
The rainproof ventilation shutter of said formation cooling device 4 is made of the continuous punch forming of sheet metal.401 one-tenth α of its blade=45 ° of inclinations angle, the curved R of the section of blade 401.The window face of shutter covers the radiating surface of whole rectifier 2 radiators 201.As shown in Figure 2.
By the Arc Welding Power of the present invention that said structure constitutes, the V-I characteristic curve that is obtained as shown in Figure 3.As can be seen from Figure 3, Arc Welding Power of the present invention has reached the purpose of the invention described above fully.At cellulose welding rod arc operation interval (welding current 50-150A), output voltage still meets welding conditions (V up to 80 volts in big galvanic areas
2〉=20+0.04I).
Claims (3)
1, a kind of Arc Welding Power that is used for pipeline welding mainly comprises: output transformer (1), and rectifier (2) and cooling device (4), what it is characterized in that said output transformer (1) secondaryly contains two main winding (W
2, W
3) and two auxiliary winding (W
4, W
5); Said rectifier (2) has radiator (201), contains and secondary four the winding (W of output transformer (1)
2, W
3, W
4, W
5) corresponding four rectifying tube (V
D1, V
D2, V
D3, V
D4); Said cooling device (4) is the structure of rainproof ventilation shutter; Between the radiator (201) of rectifier (2) and cooling device (4), be equipped with gas check (3).
2, the Arc Welding Power that is used for pipeline welding according to claim 1 is characterized in that two auxiliary winding (W that said output transformer (1) is secondary
4, W
5) with rectifier (2) in two rectifying tube (V
D3, V
D4) be in series with current-limiting inductance (L respectively between the connection
1, L
2).
3, the Arc Welding Power that is used for pipeline welding according to claim 1, the rainproof ventilation shutter that it is characterized in that said formation cooling device (4) is made of the continuous punch forming of sheet metal, blade (401) inclination angle at 45, the section of blade (401) is curved, and the window face of shutter covers the radiating surface of whole rectifiers (2) radiators (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031161766A CN100348354C (en) | 2003-04-04 | 2003-04-04 | Arc welding power supply for welding pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031161766A CN100348354C (en) | 2003-04-04 | 2003-04-04 | Arc welding power supply for welding pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1535789A CN1535789A (en) | 2004-10-13 |
| CN100348354C true CN100348354C (en) | 2007-11-14 |
Family
ID=34320259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031161766A Expired - Fee Related CN100348354C (en) | 2003-04-04 | 2003-04-04 | Arc welding power supply for welding pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100348354C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897522A (en) * | 1989-02-06 | 1990-01-30 | The Lincoln Electric Company | Output control circuit for inverter |
| CN2621868Y (en) * | 2003-06-26 | 2004-06-30 | 上海金通电子设备有限公司 | Arc welder for pipeline welding |
-
2003
- 2003-04-04 CN CNB031161766A patent/CN100348354C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897522A (en) * | 1989-02-06 | 1990-01-30 | The Lincoln Electric Company | Output control circuit for inverter |
| US4897522B1 (en) * | 1989-02-06 | 1992-10-13 | Lincoln Electric Co | |
| CN2621868Y (en) * | 2003-06-26 | 2004-06-30 | 上海金通电子设备有限公司 | Arc welder for pipeline welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1535789A (en) | 2004-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20130404 |