CN105689858A - Boiler welding process - Google Patents
Boiler welding process Download PDFInfo
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- CN105689858A CN105689858A CN201410708605.6A CN201410708605A CN105689858A CN 105689858 A CN105689858 A CN 105689858A CN 201410708605 A CN201410708605 A CN 201410708605A CN 105689858 A CN105689858 A CN 105689858A
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- welding
- boiler
- flux
- wire
- welding process
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Abstract
The invention provides a boiler welding process. The boiler welding process is characterized in that a center hole penetrating through a pipe plate is deeply inserted in a boiler barrel; a machine head of submerged arc welding is fixed on a cross beam of equipment for welding; a welding wire, a flux and parent metal are molten to form welding lines; filling metal can adopt solid welding wires and flux-cored wires, and an application ratio is about 20%; simple thick wire submerged arc welding for preparing a joint groove can use welding current high up to 1000 A; and the highest deposition rate is 20 kg/h, so that a butt-joint joint of steel plates with thicknesses of below 30 mm can be thoroughly welded in once travel. The boiler welding process has the following beneficial effects: the boiler welding process is easy to operate, excellent in flexibility, high in process adaptability, free of special requirements on working places and capable of welding in any position, and achieves the highest welding efficiency and the lowest production cost to obtain the maximum economic benefit under the precondition of guaranteeing the quality of the welding lines to accord with corresponding technical standard and the price adjustment of product technology to accord with the requirement.
Description
Technical field
The invention belongs to boiler welding field, be specifically related to a kind of boiler welding process method。
Background technology
At present in welding process, it is common to the welding method of application is: SMAW, submerged-arc welding, gas metal-arc welding, flux cored wire arc welding, gas tungsten arc welding, plasma weldering, electroslag welding etc.。For any kind of Welding Structure, welding procedure is to determine the primary influence factor of product quality, especially for important Welding Structure。Such as the complete penetraction and fusion in welding Welding Structure such as boiler, pressure vessel, its welding point all according to uniform strength design, the intensity of welding point weaken or toughness is not enough, all can cause whole welding and joint premature failure, even cause serious catastrophic effect。
Summary of the invention
It is an object of the invention to solve above-mentioned the deficiencies in the prior art, in order to solve the problems referred to above, the present invention proposes a kind of boiler welding process method, go deep in drum by the centre bore through tube sheet, the head of submerged-arc welding is fixed on the crossbeam of equipment weld, metal and form weld seam, filler metal can adopt solid welding wire and flux-cored wire, application rate accounts for 20%, joint bevel prepares simple and easy crin submerged-arc welding can use the welding current up to 1000A, most high deposition rate be 20kg/h can one stroke through welding thickness 30mm with the banjo fixing butt jointing of lower steel plate。
It is an object of the invention to be realized by techniques below scheme, have developed a kind of boiler welding process method, it is characterized in that: the described centre bore through tube sheet gos deep in drum, the head of submerged-arc welding is fixed on the crossbeam of equipment weld, the electric arc heat of burning under welding flux layer, filler wire, solder flux and base metals and form weld seam, wherein electric arc and weld zone are shielded by graininess solder flux, filler metal can adopt solid welding wire and flux-cored wire, application rate accounts for 20%, joint bevel prepares simple and easy crin submerged-arc welding can use the welding current up to 1000A, most high deposition rate be 20kg/h can one stroke through welding thickness 30mm with the banjo fixing butt jointing of lower steel plate, can square groove or open little groove and be welded into full penetration weld。
The method have the benefit that easily operated motility is good, Technological adaptability is strong, to work place without particular/special requirement, can weld in any position, guarantee that weldquality meets under corresponding technical standard and product technology price modification premise on request, reach the highest welding efficiency and minimum production cost, to obtain maximum economic benefit。
Detailed description of the invention
One boiler welding process method of the present invention, it is characterized in that: the described centre bore through tube sheet gos deep in drum, the head of submerged-arc welding is fixed on the crossbeam of equipment weld, the electric arc heat of burning under welding flux layer, filler wire, solder flux and base metals and form weld seam, wherein electric arc and weld zone are shielded by graininess solder flux, filler metal can adopt solid welding wire and flux-cored wire, application rate accounts for 20%, joint bevel prepares simple and easy crin submerged-arc welding can use the welding current up to 1000A, most high deposition rate be 20kg/h can one stroke through welding thickness 30mm with the banjo fixing butt jointing of lower steel plate, can square groove or open little groove and be welded into full penetration weld。
Embodiments described above is only that the preferred embodiment of the present invention is described; not design and scope to invention are defined; under the premise without departing from design concept of the present invention; various modification that technical scheme is made by this area ordinary person and improvement; the protection domain of invention all should be dropped into; the technology contents that invention is claimed, all records in detail in the claims。
Claims (1)
1. a boiler welding process method, it is characterized in that: the described centre bore through tube sheet gos deep in drum, the head of submerged-arc welding is fixed on the crossbeam of equipment weld, the electric arc heat of burning under welding flux layer, filler wire, solder flux and base metals and form weld seam, wherein electric arc and weld zone are shielded by graininess solder flux, filler metal can adopt solid welding wire and flux-cored wire, application rate accounts for 20%, joint bevel prepares simple and easy crin submerged-arc welding can use the welding current up to 1000A, most high deposition rate be 20kg/h can one stroke through welding thickness 30mm with the banjo fixing butt jointing of lower steel plate, can square groove or open little groove and be welded into full penetration weld。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708605.6A CN105689858A (en) | 2014-11-27 | 2014-11-27 | Boiler welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708605.6A CN105689858A (en) | 2014-11-27 | 2014-11-27 | Boiler welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105689858A true CN105689858A (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708605.6A Pending CN105689858A (en) | 2014-11-27 | 2014-11-27 | Boiler welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570838A (en) * | 2017-10-27 | 2018-01-12 | 北京奥林匹亚锅炉有限公司 | A kind of boiler corrugated inner liner welding procedure |
-
2014
- 2014-11-27 CN CN201410708605.6A patent/CN105689858A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570838A (en) * | 2017-10-27 | 2018-01-12 | 北京奥林匹亚锅炉有限公司 | A kind of boiler corrugated inner liner welding procedure |
| CN107570838B (en) * | 2017-10-27 | 2020-02-07 | 北京奥林匹亚锅炉有限公司 | Welding process for corrugated inner container of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |
|
| WD01 | Invention patent application deemed withdrawn after publication |