CN106513940B - A kind of novel process metal method for welding pipeline - Google Patents
A kind of novel process metal method for welding pipeline Download PDFInfo
- Publication number
- CN106513940B CN106513940B CN201710035715.4A CN201710035715A CN106513940B CN 106513940 B CN106513940 B CN 106513940B CN 201710035715 A CN201710035715 A CN 201710035715A CN 106513940 B CN106513940 B CN 106513940B
- Authority
- CN
- China
- Prior art keywords
- welding
- pipeline
- welded
- arc
- process metal
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of novel process metal method for welding pipeline, comprising: arcing point is arranged at away from 1~2mm of bottom, and continuous arcing is taken to weld；Gimmick is swung laterally with crescent, arc manipulation is welded at the groove of both sides, when fit-up gap is greater than 4mm, reply radian backward is increased using crescent and swings gimmick, forms sealing run；Root punctures aperture, and hole diameter is set within the scope of 0.5~1mm；Before arc crater at 2~3mm after striking, when being welded to boundary in front of arc crater, welding gun, which is pressed downward 1~2mm, increases weld seam by dynamics；When pipeline welds annular hermetic seal, with grinder buffing gradient at crafter, when being welded to this gradient, welding gun is pressed downward 1~2mm；0.5~1mm will be condensed in welding gun electric conductor and nozzle；Using reverse polarity；Reasonable selection gage of wire.The present invention solves the problems, such as that speed of welding is slow, at high cost, quality is not easy to guarantee, improves process metal pipeline welding efficiency.
Description
Technical field
The present invention relates to welding fields, more particularly to a kind of novel process metal method for welding pipeline.
Background technique
Pipeline welding is an important procedure in various metallic conduit work progress, and the one of control is also belonged in construction
A important link, with the fast development of technology, the value volume and range of product of process pipe is increasingly various, this is just to pipe-line system
Welding quality require higher and higher, and weld and restrict entire duration progress again.Therefore, metallic conduit welding link is fast
It is fast efficiently particularly important.
Under normal circumstances, important process metal pipe-line system welding, using the following two kinds welding technique:
1, using argon arc welding, shape, welding quality it is high, but argon gas and welding wire is at high cost, to the technology water of welder
It is flat to require height, and speed of welding is slow.
2, the welding of process metal pipeline is using argon arc bottoming, the welding method of manual electric arc welding capping.This method is taken
It the advantages of argon arc and by hand electric fox weldering, reduces costs, but speed of welding is not improved.Even due to argon arc welding and craft
The exchange of two kinds of welding methods of arc welding, so that speed of welding decreases；And it when welding the pipeline of heavy wall, is also easy to out
Now it is mingled with, stomata etc..
In conclusion the conventional soldering method of above-mentioned process metal pipeline, is implicitly present in many deficiencies: when (1) welding
Between it is long, weld it is costly；(2) welding quality is not easy to guarantee；(3) defect hidden danger is more.
Summary of the invention
The present invention provides a kind of novel process metal method for welding pipeline, the present invention is by argon arc bottoming and carbon dioxide
Protection weldering two kinds of welding method connected applications into the welding of process metal pipeline, solve speed of welding it is slow, it is at high cost,
Welding quality is not easy the problem of guaranteeing, substantially increases the welding efficiency of process metal pipeline, described below:
A kind of novel process metal method for welding pipeline, the welding method the following steps are included:
Arcing point is arranged at away from 1~2mm of bottom, and continuous arcing is taken to weld；
Gimmick is swung laterally with crescent, arc manipulation is welded at the groove of both sides, when fit-up gap is greater than 4mm, using the moon
Thread form increases replys radian swing gimmick backward, forms sealing run；
Root punctures aperture, and hole diameter is set within the scope of 0.5~1mm；
Before arc crater at 2~3mm after striking, when being welded to boundary in front of arc crater, welding gun, which is pressed downward 1~2mm, increases weld seam
Dynamics；
When pipeline welds annular hermetic seal, with grinder buffing gradient at crafter, when being welded to this gradient,
Welding gun is pressed downward 1~2mm；
0.5~1mm will be condensed in welding gun electric conductor and nozzle；Using reverse polarity；Reasonable selection gage of wire.
Wherein, the welding method further include: carry out polishing of splaying on arc crater, arc crater is thinned.The welding gun is NBK-
350 welding machines.
The reasonable selection gage of wire are as follows:
As plate thickness≤6mm, gage of wire 1mm is used；As plate thickness > 6mm, gage of wire 1.2mm is used.
The beneficial effect of the technical scheme provided by the present invention is that:
1, shorten the welding duration of process pipe: speed of welding is 5 times of manual electric arc welding；
2, reduce operating expenses: even if welding the process pipe of identical quantity, total installation fee also only needs 50,000 yuan, only
Account for the 1/4 of original expense；
3 compare the higher welding quality of guarantee with manual electric arc welding；
4, guarantee safety: carbon-dioxide arc welding belongs to semi-automatic welding, reduces labour's operation, ensure that and installed
Personnel safety in journey.
Detailed description of the invention
Fig. 1 is a kind of flow chart of novel process metal method for welding pipeline.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention is made below further
Ground detailed description.
Embodiment 1
A kind of novel process metal method for welding pipeline, referring to Fig. 1, the welding method the following steps are included:
101: arcing point is arranged at away from 1~2mm of bottom, and continuous arcing is taken to weld；
Wherein, when the gap at starting point position is too small, bead formed on back weld seam has leakage phenomenon, can not form fusion weldering
Seam, and molding two intersection of weld seam has apparent dent boundary line, does not have transition fusion area.When gap is excessive, it is easy to produce weldering
Tumor or even burn-through can not be formed normally, so the grasp of starting point position is the operating technology of very crux.
102: swinging laterally gimmick with crescent, welding arc manipulation is slightly stopped at the groove of both sides, when fit-up gap is greater than
When 4mm, crescent can be used and increase reply radian swing gimmick backward, sealing run is enable normally to form.
103: root punctures aperture, and hole diameter is set within the scope of 0.5~1mm；
Wherein, breakdown aperture is to ensure that the back side penetrates molding important method, and root punctures aperture, i.e., the controllable back side
Molding weld bead height.
104: layer welding line joint method；
Should be before arc crater at 2~3mm after striking, when being welded to boundary in front of arc crater, welding gun, which is pressed downward 1~2mm, makes weld seam
Increase dynamics, the refuse of sealing run joint connect, and will not generate indent or discrepancy, can also be used enterprising in arc crater
Capable polishing of splaying, the method that arc crater is thinned.
105: when pipeline welds annular hermetic seal, weldering should be worked as first at crafter with one gradient of grinder buffing
When being connected to this gradient, welding gun is pressed downward 1~2mm, i.e., solderable bead formed on back, and weld seam is without indent and discrepancy；
Further, to stablize welding, preferred 350 welding machine of NBK-of welding gun, or lighter welding gun is used, operation spirit
It is living.
106: 0.5~1mm will be condensed in welding gun electric conductor and nozzle；
When due to welding root in groove, electrode extension be will increase, at this point, welding gun electric conductor is inside contracted with nozzle
For 0.5~1mm, so that welding process is stablized.
Due to using short circuiting transfer low current low-voltage, the external cabling of specification welding, welding machine must be solid and reliable, especially
The return line for connecing workpiece must be solid and reliable.
107: using reverse polarity；Reasonable selection gage of wire.
I.e. "-" connects workpiece, and "+" connects welding gun, and otherwise, the increase of pole pressure generates excessive spatter.And it cannot be in blowing ring
It is welded under border, when such as nature draught is larger, movable draught shield should be added, otherwise, weld seam is easy to produce stomata.
As plate thickness≤6mm, gage of wire 1mm should be used；As plate thickness > 6mm, gage of wire 1.2mm should be used, and
According to different spatial, adjusts to Optimum Welding state and weld.
In conclusion the embodiment of the present invention arrives two kinds of welding method connected applications of argon arc bottoming and carbon-dioxide arc welding
In the welding of process metal pipeline, solve the problems, such as that speed of welding is slow, at high cost, welding quality is not easy to guarantee, significantly
Improve the welding efficiency of process metal pipeline.
The embodiment of the present invention to the model of each device in addition to doing specified otherwise, the model of other devices with no restrictions,
As long as the device of above-mentioned function can be completed.
Embodiment 2
Feasibility verifying is carried out to the scheme in embodiment 1 below with reference to specific construction, described below:
Experiment 1
Carbon dioxide gas arc welding technique is used in the welding of chilled water pipe-line system, effect is ideal, welding speed
Degree is fast, and welding quality is high, ensure that construction speed.
Experiment 2
Plumbing process pipe welding procedure in house integration engineering projects has been all made of carbon dioxide gas
Welding is protected, effect is ideal.
In conclusion the embodiment of the present invention solves the problems, such as that speed of welding is slow, at high cost, welding quality is not easy to guarantee,
The welding efficiency of process metal pipeline is substantially increased, and has carried out feasibility verifying.
It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, the embodiments of the present invention
Serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of novel process metal method for welding pipeline, which is characterized in that the welding method uses argon arc bottoming and two
Carbonoxide protection is welded two kinds of welding methods and is combined, the welding method the following steps are included:
Arcing point is arranged at away from 1~2mm of bottom, and continuous arcing is taken to weld；
Gimmick is swung laterally with crescent, arc manipulation is welded at the groove of both sides, when fit-up gap is greater than 4mm, using crescent
Increase and reply radian swing gimmick backward, forms sealing run；
Root punctures aperture, and hole diameter is set within the scope of 0.5~1mm；
Before arc crater at 2~3mm after striking, when being welded to boundary in front of arc crater, welding gun, which is pressed downward 1~2mm, increases weld seam by dynamics；
When pipeline welds annular hermetic seal, with grinder buffing gradient, when being welded to this gradient, welding gun at crafter
It is pressed downward 1~2mm；
0.5~1mm will be condensed in welding gun electric conductor and nozzle；Using reverse polarity；Reasonable selection gage of wire, when plate thickness≤
When 6mm, gage of wire 1mm is used；As plate thickness > 6mm, gage of wire 1.2mm is used；
The welding and the discharge hydraulic art in house integration engineering projects that the method is applied to chilled water pipe-line system
In pipeline welding.
2. the novel process metal method for welding pipeline of one kind according to claim 1, which is characterized in that the welding side
Method further include:
Polishing of splaying is carried out on arc crater, and arc crater is thinned.
3. the novel process metal method for welding pipeline of one kind according to claim 1, which is characterized in that the welding gun is
350 welding machine of NBK-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035715.4A CN106513940B (en) | 2017-01-18 | 2017-01-18 | A kind of novel process metal method for welding pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035715.4A CN106513940B (en) | 2017-01-18 | 2017-01-18 | A kind of novel process metal method for welding pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106513940A CN106513940A (en) | 2017-03-22 |
| CN106513940B true CN106513940B (en) | 2019-08-06 |
Family
ID=58335539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710035715.4A Active CN106513940B (en) | 2017-01-18 | 2017-01-18 | A kind of novel process metal method for welding pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513940B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188031A (en) * | 1997-01-15 | 1998-07-22 | 珠海市万达焊条有限公司 | Square groove welding technology for welding 8-12 mm middle-thick plate by continuous welding rod |
| CN1188032A (en) * | 1997-01-15 | 1998-07-22 | 珠海市万达焊条有限公司 | Square groove welding technology for welding pipeline by using continuous welding rod |
| CN102151954A (en) * | 2011-02-23 | 2011-08-17 | 格菱动力设备(中国)有限公司 | Operating method for welding fillet weld of tube seat on header |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN104384662A (en) * | 2014-11-13 | 2015-03-04 | 常州大学 | Steel structure combination welding technology |
| CN104551339A (en) * | 2014-12-29 | 2015-04-29 | 哈尔滨果岭科技发展有限公司 | Welding method of boiler economizer |
| CN104858555A (en) * | 2015-06-10 | 2015-08-26 | 江苏力沛电力工程技术服务有限公司 | Pressure pipeline welding process |
| CN104907673A (en) * | 2015-06-30 | 2015-09-16 | 湖北省建工工业设备安装有限公司 | Installation method of outdoor carbon steel oxygen transferring pipeline |
| CN105364272A (en) * | 2014-08-12 | 2016-03-02 | 青岛百键城环保科技有限公司 | Carbon steel tube welding process |
| CN105583503A (en) * | 2014-10-23 | 2016-05-18 | 邵杰 | Carbon steel tube welding process |
-
2017
- 2017-01-18 CN CN201710035715.4A patent/CN106513940B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188031A (en) * | 1997-01-15 | 1998-07-22 | 珠海市万达焊条有限公司 | Square groove welding technology for welding 8-12 mm middle-thick plate by continuous welding rod |
| CN1188032A (en) * | 1997-01-15 | 1998-07-22 | 珠海市万达焊条有限公司 | Square groove welding technology for welding pipeline by using continuous welding rod |
| CN102151954A (en) * | 2011-02-23 | 2011-08-17 | 格菱动力设备(中国)有限公司 | Operating method for welding fillet weld of tube seat on header |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN105364272A (en) * | 2014-08-12 | 2016-03-02 | 青岛百键城环保科技有限公司 | Carbon steel tube welding process |
| CN105583503A (en) * | 2014-10-23 | 2016-05-18 | 邵杰 | Carbon steel tube welding process |
| CN104384662A (en) * | 2014-11-13 | 2015-03-04 | 常州大学 | Steel structure combination welding technology |
| CN104551339A (en) * | 2014-12-29 | 2015-04-29 | 哈尔滨果岭科技发展有限公司 | Welding method of boiler economizer |
| CN104858555A (en) * | 2015-06-10 | 2015-08-26 | 江苏力沛电力工程技术服务有限公司 | Pressure pipeline welding process |
| CN104907673A (en) * | 2015-06-30 | 2015-09-16 | 湖北省建工工业设备安装有限公司 | Installation method of outdoor carbon steel oxygen transferring pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 组合焊接工艺在特高压钢管塔制造中的应用;华玉荣等;《热加工工艺》;20130630;第42卷(第11期);第232－233,239页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106513940A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103567652B (en) | Aluminum alloy direct current plasma-tungsten electrode argon arc hybrid welding method based on pulse coordination control | |
| CN102009251B (en) | Full-position welding method for pipeline by full-automatic external welding machine | |
| CN100450692C (en) | Large posted sides pipeline narrow gap tungsten electrode noble gas protecting all-position automatic soldering method | |
| CN103706928B (en) | The straight seam buried arc welding method of corrosion resistance metallurgical composite bimetal steel tube | |
| CN102151959B (en) | High-speed welding production process and device for thin-walled steel tubes | |
| CN204975757U (en) | Thick wall is taken over and is ridden a formula one side welding welding groove | |
| CN102814575A (en) | Deep-groove narrow-gap manual argon arc sealing welding method | |
| CN103990894A (en) | One-side-welding and two-side-forming welding technology for pipe | |
| CN104889527A (en) | Pipeline steel pipe welding technology | |
| CN102756242A (en) | Method for welding carbon steel heads | |
| CN102744499A (en) | Double-side double-arc welding process for root layer of pipeline | |
| CN106695065A (en) | T-shaped plate one-side welding pulse bottoming welding method | |
| CN206296601U (en) | A kind of small triangle robot welding system | |
| CN102922104A (en) | Large-caliber long-distance steel pipe welding process | |
| CN106513940B (en) | A kind of novel process metal method for welding pipeline | |
| CN101774055A (en) | Blind area welding method | |
| CN105234533A (en) | Steel welding technology | |
| CN108213663A (en) | Big thickness cylinder and the complete penetraction and fusion in welding welding method taken over | |
| CN103978288A (en) | Method for welding by TIG (Tungsten Inert Gas arc Welding)-MIG (Metal inert-gas welding) serially connecting way | |
| CN107234360A (en) | A kind of welding structure and its welding method for realizing the splicing of metal composite pipe equal strength | |
| CN103537772B (en) | Airtight welding method for metal shell and end-sealing glass | |
| CN115070183B (en) | Electric resistance welding method and device for oxide dispersion strengthened steel | |
| CN109332854A (en) | Technique suitable for penstock automatic welding high-intensitive in water-conveyance tunnel | |
| CN202894560U (en) | Small-hole inner wall cobalt-chromium-tungsten hard alloy automatic resurfacing welding machine | |
| CN204321408U (en) | A kind of electroslag welder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |