CN106903401A - Obliquity buried arc welding method - Google Patents
Obliquity buried arc welding method Download PDFInfo
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- CN106903401A CN106903401A CN201710291239.2A CN201710291239A CN106903401A CN 106903401 A CN106903401 A CN 106903401A CN 201710291239 A CN201710291239 A CN 201710291239A CN 106903401 A CN106903401 A CN 106903401A
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- welding
- welded
- arc welding
- sheet material
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Classifications
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- 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
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to ship welding technique field, more particularly to a kind of obliquity buried arc welding method.Comprise the following steps:Jointed sheet material groove both sides to be welded are carried out into surface Local treatment, and removes iron rust, moisture and greasy dirt；In plate back stickers lining pad to be welded, and jointed sheet material to be welded and the angle of horizontal plane are 5~15 °；First welded since jointed sheet material front to be welded using CO2 semiautomatic weldings, afterwards using the filling of submerged-arc welding uphill welding, finally using submerged-arc welding downward welding in the inclined position capping；In welding process, welding wire and board material vertical to be welded.Jointed sheet material to be welded and the angle of horizontal plane are 5~15 ° in the present invention, by CO2Semiautomatic welding treats welded blank and carries out pre-welding, is then filled by submerged-arc welding uphill welding again, and quickly weld seam can be filled, and finally using submerged-arc welding downward welding in the inclined position capping, ensure that the flatness and smoothness of face of weld.
Description
Technical field
The present invention relates to ship welding technique field, more particularly to a kind of obliquity buried arc welding method.
Background technology
Submerged-arc welding is a kind of efficient automatic welding method in shipbuilding industry, and it uses scope wide, welding quality
Stabilization, in segmentation jigsaw, pre- carrying, the stage application of carrying extremely extensively, but generally submerged-arc welding can only the inclination of butt welding weld seam
Sheet material of the angle within 5 °, and there are many butt weld angles of inclination to be both greater than 5 ° substantially, and now these weld seams just can only
Using CO2The automatic welding of semiautomatic welding or multilayer multiple tracks is welded.
Using semi- or fully automated CO2Gas shielded arc welding, weld layer road number is more, and the welding current of per pass weldering is also confined to
Within 280A, therefore welding efficiency is relatively low；
Wherein, semi-automatic CO2Gas shielded arc welding belongs to manual operations, for welder's technical ability in itself, sense of responsibility requirement compared with
Height, welding Shi Ceng roads number needs connection and reasonable arrangement, during the angle that produces or defect must remove after can carry out down welding together
Connect, stability of the welding quality is relatively poor.
And use CO2When the butt weld of semi-automatic welding jigsaw is in 5 °~15 ° of obliquities, due to the card of jigsaw positioning
Code is typically mounted on the front of welding groove, and many welding points can be produced in welding process, easily produces weld defect,
Welding quality is caused to decline.
Therefore, a kind of obliquity buried arc welding method how is provided, to solve submerged-arc welding present in prior art
Welding only can butt weld angle of inclination within 5 ° sheet material welding, be those skilled in the art need solve technology ask
Topic.
The content of the invention
It is an object of the invention to propose a kind of obliquity buried arc welding method, can solve the problem that in the prior art and exist
Submerged arc welding only be capable of butt weld angle of inclination within 5 ° sheet material welding problem.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of obliquity buried arc welding method is provided, is comprised the following steps:
(1) jointed sheet material groove both sides to be welded, are carried out into surface Local treatment, and removes iron rust, moisture and greasy dirt；
(2), in plate back stickers lining pad to be welded, and jointed sheet material to be welded and the angle of horizontal plane are 5~15 °；
(3) CO, is first used2Semiautomatic welding is welded since jointed sheet material front to be welded, is filled out using submerged-arc welding uphill welding afterwards
Fill, finally using submerged-arc welding downward welding in the inclined position capping；In welding process, welding wire and board material vertical to be welded.
Preferably, described first use CO2The weld layer road number that semiautomatic welding is welded since jointed sheet material front to be welded is 1
~2 layers, thickness is 5~10mm.
Preferably, the submerged-arc welding uphill welding welding current is 450~550A, weldingvoltage is 27~29V, welding speed
It is 24~30m/h to spend.
Preferably, the submerged-arc welding downward welding in the inclined position welding current is 550~700A, weldingvoltage is 25~30V, welding speed
It is 26~32m/h to spend.
Preferably, the gage of wire is 3.2~5mm.
Preferably, the pad is ceramic substrate, and the ceramic substrate is provided near the side of jointed sheet material to be welded
Groove, the groove is located at the underface in the gap that two jointed sheet materials to be welded are formed.
Preferably, the bevel angle scope of the jointed sheet material to be welded is 30~45 °.
Preferably, a width of 4~12mm in gap that jointed sheet material to be welded described in two is formed.
Beneficial effects of the present invention：
Jointed sheet material to be welded and the angle of horizontal plane are 5~15 ° in the present invention, by CO2Semiautomatic welding treats welded blank
Pre-welding is carried out, is then filled by submerged-arc welding uphill welding again, quickly weld seam can be filled, finally using submerged-arc welding
Downward welding in the inclined position capping, ensure that the flatness and smoothness of face of weld.Compared with prior art, effect is welded in the present invention
Rate is greatly improved, under same weld intensity, the present invention in welding method with traditional-handwork weld compared with efficiency at least improve
2-4 times.
Because the electric current that is used during submerged arc welding in the present invention, voltage, speed of welding are used with existing submerged-arc welding
Electric current, voltage, speed of welding are differed, but the preferable welding effect of acquisition, and then can be can solve the problem that in the prior art
The too small syncretizing effect for causing of electric current is poor, the excessive problem for causing electric arc unstable.
Brief description of the drawings
Fig. 1 is the positional structure between the obliquity buried arc welding method welding wire that the present invention is provided and jointed sheet material to be welded
Schematic diagram；
Fig. 2 is the position view between two jointed sheet materials to be welded that the present invention is provided；
Fig. 3 is the position view between the jointed sheet material to be welded that the present invention is provided and pad；
Fig. 4 be in the present invention jointed sheet material to be welded in CO2Position view after semiautomatic welding welding；
Fig. 5 is that jointed sheet material to be welded welds schematic diagram after the welding of submerged-arc welding uphill welding in the present invention；
Fig. 6 is that jointed sheet material to be welded welds schematic diagram after the welding of submerged-arc welding downward welding in the inclined position in the present invention.
In figure：
1st, jointed sheet material to be welded；2nd, welding wire；3rd, pad.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and by specific
Implementation method further illustrates technical scheme.
As shown in figures 1 to 6, a kind of obliquity buried arc welding method is provided in the present embodiment, is comprised the following steps:
(1) jointed sheet material groove both sides to be welded, are carried out into surface Local treatment, and removes iron rust, moisture and greasy dirt；
(2), in plate back stickers lining pad 3 to be welded, and jointed sheet material to be welded 1 and the angle α of horizontal plane are 5~15 °；
(3) CO, is first used2Semiautomatic welding is welded since jointed sheet material front to be welded, is filled out using submerged-arc welding uphill welding afterwards
Fill, finally using submerged-arc welding downward welding in the inclined position capping；In welding process, welding wire 2 is vertical with jointed sheet material to be welded 1.
The groove both sides of jointed sheet material to be welded 1 are carried out into surface Local treatment, is to prevent weld iron rust, moisture and greasy dirt
Butt welding is practiced midwifery raw harmful effect, prevents welding from the quality problems such as undercut occur.In the purpose of the back side stickers lining pad 3 of jointed sheet material to be welded 1
It is, in order to the soldering fluid after welding wire 2 is melted effectively stops, to prevent soldering fluid from flowing out weld seam.During welding, welding wire 2 with it is to be welded
Sheet material 1 is vertically arranged, and now the angle γ between welding wire 2 and horizontal plane is 75~85 °.
Wherein, it is described first to use CO2The weld layer road number that semiautomatic welding is welded since jointed sheet material front to be welded is 1~2
Layer, thickness is 5~10mm.Using CO2The purpose of semiautomatic welding is in order to two jointed sheet materials to be welded 1 are carried out into pre-connection, such energy
Enough facilitate follow-up submerged-arc welding uphill welding and submerged-arc welding downward welding in the inclined position.
Wherein, submerged-arc welding uphill welding welding current described above is 450~550A, and weldingvoltage is 27~29V, welding speed
It is 24~30m/h to spend；The submerged-arc welding downward welding in the inclined position welding current is 550~700A, and weldingvoltage is 25~30V, speed of welding
It is 26~32m/h.
Submerged arc welding electric current is between 650~800A in the prior art, submerged-arc welding uphill welding welding current in the present invention
It is 450~550A, is 5~15 ° with reference to the angle between jointed sheet material to be welded and horizontal plane, the weld seam of acquisition is welded in the case of this kind
Be not in the problem of undercut and incomplete fusion, at the same during ultrasound examination present invention jointed sheet material 1 relatively to be welded and horizontal plane it
Between angle be 5~15 °, electric current in 450~550A, ultrasonic bonding Detection results are good, and disqualification rate is relatively low.Tool
Body, submerged-arc welding downward welding in the inclined position welding current is 550~650A.
Wherein, a diameter of 3.2~5mm of the welding wire 2.Welding wire 2 hangs down between jointed sheet material to be welded 1 all the time in welding process
Directly, i.e., the angle γ between welding wire and horizontal plane is 75-85 °, and the stem elongation of welding wire 2 is 25~30mm.
In the present embodiment pad 3 be ceramic substrate, and the ceramic substrate near jointed sheet material to be welded 1 side be provided with it is recessed
Groove, the groove is located at the underface in the gap that two jointed sheet material to be welded 1 is formed.The purpose for setting groove is in order that two is to be welded
Radiating is very fast between the gap that sheet material 1 is formed, while being that the welding wire 2 for melting can form a preferable weld seam of switching performance.
The bevel angle β scopes of the jointed sheet material to be welded 1 are 30~45 °.The gap a width of 4 that jointed sheet material to be welded 1 described in two is formed~
12mm。
It is vertically arranged with plate to be welded 1 by by welding wire 2 in the present invention, and the electric current in welding process is subtracted relatively
It is small, when can to make the angle between plate to be welded and horizontal plane be 5~15 °, it is ensured that welding quality.
With submerged-arc welding uphill welding electric current as 500A, weldingvoltage as 27V, speed of welding as 28m/h, submerged-arc welding downward welding in the inclined position electricity
Flow for 600A, weldingvoltage be 27V, speed of welding be 30m/h as a example by, welding finish after by Ultrasonic Nondestructive,
The waveform of weld feedback is integrally respectively positioned on below the lines of φ 3 in a coordinate system, then show the weldquality symbol obtained in the present invention
Close ship steel weld joint ultrasonic characterization processes and quality classification standard (CB/T 3559-2011).
With submerged-arc welding uphill welding electric current as 450A, weldingvoltage as 29V, speed of welding as 26m/h, submerged-arc welding downward welding in the inclined position electricity
Flow for 580A, weldingvoltage be 27V, speed of welding be 28m/h as a example by, welding finish after by Ultrasonic Nondestructive,
The waveform of weld feedback is integrally respectively positioned on the lines of φ 3 lower section in a coordinate system, then show the weldquality symbol obtained in the present invention
Close ship steel weld joint ultrasonic characterization processes and quality classification standard (CB/T 3559-2011).
With submerged-arc welding uphill welding electric current as 550A, weldingvoltage as 28V, speed of welding as 26m/h, submerged-arc welding downward welding in the inclined position electricity
Flow for 700A, weldingvoltage be 30V, speed of welding be 30m/h as a example by, welding finish after by Ultrasonic Nondestructive,
The waveform of weld feedback is integrally respectively positioned on the lines of φ 3 lower section in a coordinate system, then show the weldquality symbol obtained in the present invention
Close ship steel weld joint ultrasonic characterization processes and quality classification standard (CB/T 3559-2011).
With submerged-arc welding uphill welding electric current as 490A, weldingvoltage as 28V, speed of welding as 29m/h, submerged-arc welding downward welding in the inclined position electricity
Flow for 600A, weldingvoltage be 29V, speed of welding be 28m/h as a example by, welding finish after by Ultrasonic Nondestructive,
The waveform of weld feedback is integrally respectively positioned on the lines of φ 3 lower section in a coordinate system, then show the weldquality symbol obtained in the present invention
Close ship steel weld joint ultrasonic characterization processes and quality classification standard (CB/T 3559-2011).
The obliquity buried arc welding method provided in the present invention expands the use scope of submerged-arc welding, makes submerged-arc welding only
Energy butt welding weld seam angle of inclination is expanded within 5 ° can be with butt welding weld seam angle of inclination within 15 °.
The present invention changes weld seam and can only use CO in 5 °~15 ° range of tilt angles2The problem of semiautomatic welding, enters
And reduce and use CO2Weld grinding work, substantially increases production efficiency, while also ensure that welding quality during welding.Phase
For CO2For semiautomatic welding, welding current increase in the present invention, and then improve welding efficiency.
Note, general principle of the invention and principal character and advantages of the present invention has been shown and described above.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in above-mentioned implementation method and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
Improve, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (8)
1. a kind of obliquity buried arc welding method, it is characterised in that comprise the following steps:
(1) jointed sheet material groove both sides to be welded, are carried out into surface Local treatment, and removes iron rust, moisture and greasy dirt；
(2), in plate back stickers lining pad to be welded, and jointed sheet material to be welded and the angle of horizontal plane are 5~15 °；
(3) CO, is first used2Semiautomatic welding is welded since jointed sheet material front to be welded, afterwards using the filling of submerged-arc welding uphill welding, most
Submerged-arc welding downward welding in the inclined position capping is used afterwards；In welding process, welding wire and board material vertical to be welded.
2. obliquity buried arc welding method according to claim 1, it is characterised in that described first to use CO2It is semi-automatic
It is 1~2 layer to weld the weld layer road number welded since jointed sheet material front to be welded, and thickness is 5~10mm.
3. obliquity buried arc welding method according to claim 2, it is characterised in that the submerged-arc welding uphill welding weldering
Electric current is connect for 450~550A, weldingvoltage is 27~29V, speed of welding is 24~30m/h.
4. obliquity buried arc welding method according to claim 3, it is characterised in that the submerged-arc welding downward welding in the inclined position weldering
Electric current is connect for 550~700A, weldingvoltage is 25~30V, speed of welding is 26~32m/h.
5. obliquity buried arc welding method according to claim 4, it is characterised in that the gage of wire is 3.2
~5mm.
6. obliquity buried arc welding method according to claim 5, it is characterised in that the pad is ceramic liner
Pad, and the ceramic substrate sets fluted near the side of jointed sheet material to be welded, the groove is formed positioned at two jointed sheet materials to be welded
Gap underface.
7. obliquity buried arc welding method according to claim 6, it is characterised in that the slope of the jointed sheet material to be welded
Mouth angular range is 30~45 °.
8. obliquity buried arc welding method according to claim 7, it is characterised in that jointed sheet material shape to be welded described in two
Into a width of 4~12mm in gap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291239.2A CN106903401A (en) | 2017-04-28 | 2017-04-28 | Obliquity buried arc welding method |
| PCT/CN2017/104139 WO2018196280A1 (en) | 2017-04-28 | 2017-09-29 | Method for submerged arc welding at inclined position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291239.2A CN106903401A (en) | 2017-04-28 | 2017-04-28 | Obliquity buried arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903401A true CN106903401A (en) | 2017-06-30 |
Family
ID=59210971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710291239.2A Pending CN106903401A (en) | 2017-04-28 | 2017-04-28 | Obliquity buried arc welding method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106903401A (en) |
| WO (1) | WO2018196280A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196280A1 (en) * | 2017-04-28 | 2018-11-01 | 广船国际有限公司 | Method for submerged arc welding at inclined position |
| CN109926698A (en) * | 2019-04-29 | 2019-06-25 | 冰轮环境技术股份有限公司 | A kind of welding procedure of single-side welding double-side forming |
| CN111318790A (en) * | 2018-12-17 | 2020-06-23 | 施凯元 | Submerged arc welding method |
| CN113500275A (en) * | 2021-07-22 | 2021-10-15 | 南京航空航天大学 | GMAW (gas metal arc welding) welding process for improving formation and performance of high-speed electric arc lap welding seam of sheet steel |
| CN113649725A (en) * | 2021-09-27 | 2021-11-16 | 南京航空航天大学 | Process method for improving fatigue performance of sheet steel GMAW electric arc welding butt joint |
| CN116079188A (en) * | 2023-03-09 | 2023-05-09 | 中铁宝桥集团有限公司 | Welding method for large-section butt-joint groove of inclined steel tower section |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059371A (en) * | 2020-08-26 | 2020-12-11 | 郑州煤矿机械集团股份有限公司 | Automatic welding method for narrow groove of hydraulic support structural part |
| CN112191989A (en) * | 2020-09-29 | 2021-01-08 | 郑州煤矿机械集团股份有限公司 | Method for welding fillet weld of hydraulic support through large penetration depth of robot |
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| CN103028817A (en) * | 2011-09-29 | 2013-04-10 | 中航鼎衡造船有限公司 | Mixed welding process for marine duplex stainless steel trough type bulkhead thick plate |
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| JPS5319952A (en) * | 1976-08-10 | 1978-02-23 | Nippon Steel Corp | Submerged arc welding for very thick steel plates |
| JPH08267279A (en) * | 1995-03-29 | 1996-10-15 | Kobe Steel Ltd | Fused flux for submerged arc welding |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196280A1 (en) * | 2017-04-28 | 2018-11-01 | 广船国际有限公司 | Method for submerged arc welding at inclined position |
| CN111318790A (en) * | 2018-12-17 | 2020-06-23 | 施凯元 | Submerged arc welding method |
| CN109926698A (en) * | 2019-04-29 | 2019-06-25 | 冰轮环境技术股份有限公司 | A kind of welding procedure of single-side welding double-side forming |
| CN109926698B (en) * | 2019-04-29 | 2021-03-09 | 冰轮环境技术股份有限公司 | Welding process for single-side welding and double-side forming |
| CN113500275A (en) * | 2021-07-22 | 2021-10-15 | 南京航空航天大学 | GMAW (gas metal arc welding) welding process for improving formation and performance of high-speed electric arc lap welding seam of sheet steel |
| CN113500275B (en) * | 2021-07-22 | 2022-06-21 | 南京航空航天大学 | GMAW (gas metal arc welding) welding process for improving formation and performance of high-speed electric arc lap welding seam of sheet steel |
| CN113649725A (en) * | 2021-09-27 | 2021-11-16 | 南京航空航天大学 | Process method for improving fatigue performance of sheet steel GMAW electric arc welding butt joint |
| CN116079188A (en) * | 2023-03-09 | 2023-05-09 | 中铁宝桥集团有限公司 | Welding method for large-section butt-joint groove of inclined steel tower section |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018196280A1 (en) | 2018-11-01 |
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