CN1384313A - Automatic submerged-arc welding method for boiler ppie header and head - Google Patents
Automatic submerged-arc welding method for boiler ppie header and head Download PDFInfo
- Publication number
- CN1384313A CN1384313A CN 02109846 CN02109846A CN1384313A CN 1384313 A CN1384313 A CN 1384313A CN 02109846 CN02109846 CN 02109846 CN 02109846 A CN02109846 A CN 02109846A CN 1384313 A CN1384313 A CN 1384313A
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- welding
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- welding wire
- wire guide
- boiler
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Abstract
The present invention provides a improved automatic submerged-arc welding method for boiler pipe header and head. The welded part of boiler pipe header and the welded part of head are first butted jointed and then welded via automatic submerged-arc welding process. The present invention features welding wire guiding head with bent front end fixed on wire moving mechanism, welding wire guiding hole set along the welding wire guiding head, and stretching the guiding head into inner wall for welding in the inner wall. Compared with available technology, the present invention has the advantages of high welding efficiency, no need of cutting slope mouth, low cost, etc.
Description
Technical field
The invention belongs to a kind of welding method of boiler component, particularly a kind of boiler header and end socket adopt the method for Lincoln weld.
Background technology
At present, domestic each tame boiler factory aborning, following two kinds of methods are adopted in the boiler header and the welding of end socket substantially: a kind of is that the boiler header welding position is also docked with end socket welding position bevel, adopts argon arc welding welding bottoming then, utilizes manual welding to fill and capping at last.Second kind is that the boiler header welding position is also docked with end socket welding position bevel, adopts manual welding then, and single face welding and double face shaping utilizes manual welding to fill and capping.Adopt two kinds of above-mentioned methods to have following deficiency: working (machining) efficiency is low, and adding wastes argon gas man-hour, and operation is many, needs bevel, and processing cost height, welding fabrication are not attractive in appearance.
Summary of the invention
The purpose of this invention is to provide the method working (machining) efficiency height that a kind of boiler header and end socket adopt Lincoln weld, do not need bevel, reduce operation, reduce cost, quality is good, and it is attractive in appearance to be shaped.
The objective of the invention is to be achieved through the following technical solutions: earlier the boiler header welding position is docked with the end socket welding position, utilize automatic submerged-arc welding machine to carry out submerged arc welding then, it is characterized in that: the welding wire guide head is fixedly connected on Lincoln weld machine head wire feeder, along the welding wire guide head welding wire guide hole is set, the front end of welding wire guide head has certain camber, during the welding inwall, the welding wire guide head that installs welding wire is stretched into the inboard weld.
The present invention and prior art relatively have following advantage: the working (machining) efficiency height, do not need bevel, and reduce operation, reduce cost, quality is good, and it is attractive in appearance to be shaped.
Description of drawings
Fig. 1 is a welding wire guide head schematic diagram of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the welding wire guide head schematic diagram that is fixedly connected on the Lincoln weld machine head wire feeder of the present invention.
Fig. 4 is boiler header and end socket welding schematic diagram.
The specific embodiment
See Fig. 1-4, welding wire guide head 1 is the copper pipe body, centre bore 2 is the welding wire hole, there is certain camber the front portion of its body, the body portion cross sectional shape that inserts Lincoln weld machine head wire feeder 4 at the rear portion is a small semicircle, the screwed hole 3 of installation is arranged on it, be fixed on the installing hole of Lincoln weld machine head wire feeder 4 with screw by this hole.During welding, earlier boiler header 5 welding positions are docked with end socket 6 welding positions, utilize automatic submerged-arc welding machine to carry out submerged arc welding then, welding wire guide head 1 front end that welding wire 7 will be housed earlier stretches into the inner weld bond of interior welds, welds outside weld bond then according to a conventional method.
Claims (1)
1, a kind of boiler header and end socket adopt the method for Lincoln weld, earlier the boiler header welding position is docked with the end socket welding position, utilize automatic submerged-arc welding machine to carry out submerged arc welding then, it is characterized in that: the welding wire guide head is fixedly connected on Lincoln weld machine head wire feeder, along the welding wire guide head welding wire guide hole is set, the front end of welding wire guide head has certain camber, during the welding inwall, the welding wire guide head that installs welding wire is stretched into the inboard weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109846 CN1384313A (en) | 2002-06-14 | 2002-06-14 | Automatic submerged-arc welding method for boiler ppie header and head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109846 CN1384313A (en) | 2002-06-14 | 2002-06-14 | Automatic submerged-arc welding method for boiler ppie header and head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1384313A true CN1384313A (en) | 2002-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02109846 Pending CN1384313A (en) | 2002-06-14 | 2002-06-14 | Automatic submerged-arc welding method for boiler ppie header and head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1384313A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398246C (en) * | 2004-06-30 | 2008-07-02 | 上海锅炉厂有限公司 | Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam |
| CN102240840A (en) * | 2010-05-10 | 2011-11-16 | 南通星瑞热交换容器有限公司 | Submerged arc welding process for cylinders with diameter delta of more than 8mm and heads |
| CN103394835A (en) * | 2013-08-14 | 2013-11-20 | 哈尔滨哈锅锅炉工程技术有限公司 | Argon filling protective hood for welding P91/T91 header pipes |
-
2002
- 2002-06-14 CN CN 02109846 patent/CN1384313A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398246C (en) * | 2004-06-30 | 2008-07-02 | 上海锅炉厂有限公司 | Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam |
| CN102240840A (en) * | 2010-05-10 | 2011-11-16 | 南通星瑞热交换容器有限公司 | Submerged arc welding process for cylinders with diameter delta of more than 8mm and heads |
| CN103394835A (en) * | 2013-08-14 | 2013-11-20 | 哈尔滨哈锅锅炉工程技术有限公司 | Argon filling protective hood for welding P91/T91 header pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |