CN106216808A - Welding method for vertical weld joint of high-altitude thick plate - Google Patents
Welding method for vertical weld joint of high-altitude thick plate Download PDFInfo
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- CN106216808A CN106216808A CN201610570008.0A CN201610570008A CN106216808A CN 106216808 A CN106216808 A CN 106216808A CN 201610570008 A CN201610570008 A CN 201610570008A CN 106216808 A CN106216808 A CN 106216808A
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- welding
- altitude
- groove
- welding method
- cross joint
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- 238000003466 welding Methods 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000011324 bead Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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
- B23K9/02—Seam welding; Backing means; Inserts
-
- 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
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
-
- 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
- B23K2101/16—Bands or sheets of indefinite length
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the technical field of welding, and particularly relates to a vertical weld joint welding method for a high-altitude thick plate, which comprises the following steps: A. splicing the thick plates into a double-sided V-shaped groove; B. backing welding: adding a gasket on the back of the groove, and then performing front single-arc welding; C. filling and welding: the front groove and the back groove are symmetrically welded by double sides and double arcs. The method overcomes the defects of complex method and low efficiency of the traditional high-altitude thick plate welding method, greatly improves the high-altitude welding production efficiency, and reduces the problems of serious welding deformation and difficult correction after deformation of the thick plate.
Description
Technical field
The invention belongs to welding technology field, more specifically to a kind of high-altitude slab cross joint welding method.
Background technology
Steel plate shear force wall is one of important component of construction steel structure, and its feature is heavy in section, long weld seam.At present, thicker
The most artificial weldering of the welding method that steel plate wall cross joint uses and semiautomatic welding.Traditional welding method is: front preheating → and just
Face welding → reverse side gouge back chipping → polishing groove → magnetic powder inspection → reverse side preheating → reverse side welding.The weldering that thick plates produces
The power that scoops out is big, makes welding workpiece easily produce the correction work after bigger stress deformation, and high-altitude deformation extremely difficult.Existing
During actual welding, in order to reduce welding deformation, often use in weld seam both sides along bead direction at interval of certain away from
From adding the rigid constraints such as welding horse plate.Burning torch is used to remove welding horse plate after having welded.Owing to welding process needing carbon
Arc gouge back chipping and need to add rigid constraint to reduce welding deformation, on-the-spot steel plate wall cross joint welding be difficulty with from
Dynamic welding.
It is the inexorable trend that welding develops it is known that intelligent with automatization.Weld for current high-altitude steel plate shear force wall
The method that connects is complicated, the production status of human weld's inefficiency, explores a kind of new welding method, reduce labor strength,
Improve welding productivity and be advantageously implemented the automatization of high-altitude thicker steel plate shear force wall, intelligent welding is very important.
At present, market there is the Site Welding robot portable, intelligent of applicable overhead welding.With
As a example by MICROBO robot, the type welding robot is mainly automatically detected by welding wire touch sensor and is obtained workpiece
The weld information such as thickness of slab, bevel angle, root gap, fusion length, position offset, and auto computing goes out optimal electric current
The welding parameters such as voltage, speed of welding, weld interval, the amplitude of oscillation, the number of plies, are finally completed multi-pass welding.But the type is welded
The groove type that robot is suitable for is mainly one side double V-groove form, for slab combination bevel V groove, needs to develop new side
Method realizes automatic welding.
Summary of the invention
The technical problem to be solved is to overcome existing thick plates method method complexity, inefficiency and discomfort
In the shortcoming realizing robot automation's welding, it is provided that a kind of welding side realizing high-altitude thicker steel plate shear force wall high-quality and high-efficiency
Method.
The technical scheme is that
A kind of high-altitude slab cross joint welding method, comprises the following steps:
A. slab is spliced into two-sided double V-groove；
B. bottoming welding: add liner in the groove back side, then carry out front list arc welding；
C. welding is filled: use two-sided pair of arc to be symmetrically welded in front and back groove.
Further, in described step A, use horse plate location further at the groove back side.
Further, in described step B, described gasket shapes is consistent with bevel shape, and liner is spliced into band, and
It is attached to the groove back side.
Further, after described liner is spliced into band, pads with aluminium foil and bonding paper tape, be attached to the groove back of the body with bonding paper tape
Face.
Further, described bevel angle is 35 °, and groove root root face is 0-2mm, and groove gap is 6-8mm；Described lining
Padding trapezoidal shape, bottom width 6mm on it, high 25mm, two haunch degree are 35 °.
Further, described liner is ceramic material.
Further, in described step B, first on slab, along bead direction, magnetic is installed when carrying out front list arc welding
Property track, then, is arranged on welding equipment on magnetic orbit；Afterwards, weld.
Further, in described step B, before carrying out front list arc welding, first remove bevelled edge impurity.
Further, the ignition tip body of front welding equipment stretches out 5mm from spray nozzle front end, and dry extension of electrode degree is
20mm, angle of welding gun is 72 °, and welding wire selects the flux-cored wire of a diameter of 1.2mm；During welding, gas flow is 30-40L/min.
Further, in described step C, after front list arc welding completes, front welding equipment is adjusted to time-out shape
State, welding parameter keeps constant, removes groove back side horse plate with burning torch, knock out liner, complete welding equipment at the groove back side
Install, the most symmetrical welding completing all weld seams of the welding equipment of last obverse and reverse.
Further, in described step C, back side welding equipment welding parameter and front welding equipment welding parameter one
Cause.
Further, described welding equipment is MICROBO welding robot.
Further, in described step C, before being filled with welding, also uneven to groove back-welding shape part
Position carries out grinding process.
Compared with prior art, instant invention overcomes that existing high-altitude thick plates method method is complicated, the lacking of inefficiency
Point.Bottoming welding uses the groove back side to add liner, one side list robot welding, fills welding and uses two-sided dual robot symmetrical
Welding, eliminates on-the-spot gouge back chipping operation, it is also ensured that back side root run molding, beneficially back side robot detect automatically
And generate corresponding welding condition.On the other hand, said method drastically increases overhead welding production efficiency, reduces slab
Welding deformation is serious, the problem of deformation post-equalization difficulty.The most on-the-spot employing robot welding, welding method realizes standardization,
Be conducive to the control of welding quality.After situ machine people's installation, just can automatically carry out the reciprocal welding of weld seam, workman works
Intensity is substantially reduced.
Accompanying drawing explanation
Fig. 1: embodiment of the present invention cut deal splicing schematic diagram；
Fig. 2: liner scheme of installation in the embodiment of the present invention；
Fig. 3: Fig. 2 gasket construction schematic diagram；
Fig. 4: list arc welding schematic diagram in front in the embodiment of the present invention；
Welding gun schematic diagram in Fig. 5: Fig. 4；
Fig. 6: fill welding schematic diagram in the embodiment of the present invention；
In figure: 1-slab 2-horse plate 3-liner 4-welding equipment 5-welding gun
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.
A kind of high-altitude slab cross joint welding method, comprises the following steps:
A. slab 1 is spliced into two-sided double V-groove (as shown in Figure 1)；
B. bottoming welding: add liner 3 (as shown in Figure 2) in the groove back side, then carry out front list arc welding；
C. welding is filled: use two-sided pair of arc to be symmetrically welded in front and back groove.
Specifically, in step, horse plate 2 is used to position (as shown in Figure 1) further at the groove back side, horse plate 2 middle concave
Groove correspond at groove.In stepb, liner 3 can be spliced into band, and be attached to the groove back side.In the present embodiment, liner 3 is spelled
After being connected into band, pad with aluminium foil and bonding paper tape, be attached to the groove back side with bonding paper tape.
As it is shown on figure 3, liner 3 shape is consistent with bevel shape, so fixing firm welding, gap is few, generation miscellaneous
Matter will not be deposited.In the present embodiment, bevel angle is 35 °, and groove root root face is 0-2mm, and groove gap is 6-8mm；Liner 3
Trapezoidal shape, bottom width 6mm on it, high 25mm, two haunch degree are 35 °, and liner 3 is ceramic material.
As shown in Figure 4, in step B, first on slab 1, along bead direction, magnetic is installed when carrying out front list arc welding
Track, then, is arranged on welding equipment 4 on magnetic orbit, it is ensured that commissure is in the range of robot welding, it is ensured that accurately
Property；Afterwards, weld.
In stepb, before carrying out front list arc welding, the removal of impurity in the range of bevelled edge 30mm, is gone；As it is shown in figure 5,
Front welding equipment 4 ignition tip body stretches out 5mm from spray nozzle front end, and dry extension of electrode degree is 20mm, and welding gun 5 angle is 72 °, weldering
Silk selects the flux-cored wire of a diameter of 1.2mm；During welding, gas flow is 30-40L/min.
After adjustment, on practical work piece, do not contact groove for nozzle, need to be finely adjusted whole.Angle is narrow, it is impossible to avoid
The when of nozzle contact groove, welding gun 5 is somewhat erected, adjust to nozzle contact groove side.
In step C, after front list arc welding completes, front welding equipment 4 being adjusted to halted state, welding parameter is protected
Hold constant, remove groove back side horse plate 2 with burning torch, knock out liner 3, complete the installation of another set of welding equipment 4 at the groove back side,
The most symmetrical welding completing all weld seams of welding equipment 4 of last obverse and reverse, as shown in Figure 6.
In step C, back side welding equipment 4 welding parameter is consistent with front welding equipment 4 welding parameter.
Welding equipment 4 is MICROBO welding robot, uses fully automatic mode, automatically generates welding condition, carry out bottoming
The welding of welding bead.This robot is automatically detected by welding wire touch sensor and is obtained between the thickness of slab of workpiece, bevel angle, root
At the weld information, and auto computing such as gap, fusion length, position offset when optimal current/voltage, speed of welding, welding
Between, the welding parameter such as the amplitude of oscillation, number of plies, be finally completed multi-pass welding.
In step C, before being filled with welding, also the uneven position of groove back-welding shape part is carried out burnishing part
Reason, it is ensured that groove is internal clean and tidy.
Said method overcomes existing high-altitude thick plates method complex process, the shortcoming of inefficiency, and bottoming welding is adopted
Add liner 3, one side list robot welding with the groove back side, fill welding and use two-sided dual robot to be symmetrically welded, eliminate
On-the-spot gouge back chipping operation, it is also ensured that back side root run molding, beneficially back side robot automatically detect and generate accordingly
Welding condition.On the other hand, said method drastically increases overhead welding production efficiency, reduces thick plates deformation tight
Weight, the problem of deformation post-equalization difficulty.Meanwhile, on-the-spot employing robot welding, welding procedure realizes standardization, is conducive to welding
The control of quality.After situ machine people's installation, just can automatically carry out the reciprocal welding of weld seam, labor strength drops significantly
Low.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (9)
1. a high-altitude slab cross joint welding method, it is characterised in that: comprise the following steps,
A. slab is spliced into two-sided double V-groove；
B. bottoming welding: add liner in the groove back side, then carry out front list arc welding；
C. welding is filled: use two-sided pair of arc to be symmetrically welded in front and back groove.
A kind of high-altitude the most according to claim 1 slab cross joint welding method, it is characterised in that: in described step A,
Horse plate location is used further at the groove back side.
A kind of high-altitude the most according to claim 1 slab cross joint welding method, it is characterised in that: in described step B,
Described gasket shapes is consistent with bevel shape, liner is spliced into band, and is attached to the groove back side.
A kind of high-altitude the most according to claim 3 slab cross joint welding method, it is characterised in that: described liner is spliced into
After band, pad with aluminium foil and bonding paper tape, be attached to the groove back side with bonding paper tape.
A kind of high-altitude the most according to claim 3 slab cross joint welding method, it is characterised in that: described bevel angle is
35 °, groove root root face is 0-2mm, and groove gap is 6-8mm；The trapezoidal shape of described liner, bottom width 6mm on it, high 25mm,
Two haunch degree are 35 °.
6. according to the arbitrary described a kind of high-altitude slab cross joint welding method of claim 1 to 5, it is characterised in that: described
Liner is ceramic material.
A kind of high-altitude the most according to claim 1 slab cross joint welding method, it is characterised in that: in described step B,
Carry out first on slab, along bead direction, magnetic orbit being installed during the list arc welding of front, then, welding equipment is arranged on magnetic
On property track；Afterwards, weld.
A kind of high-altitude the most according to claim 7 slab cross joint welding method, it is characterised in that: in described step C,
After front list arc welding completes, front welding equipment being adjusted to halted state, welding parameter keeps constant, removes slope with burning torch
Mouth back side horse plate, knocks out liner, completes the installation of welding equipment at the groove back side, and the welding equipment of last obverse and reverse is simultaneously
Symmetry completes the welding of all weld seams.
A kind of high-altitude the most according to claim 8 slab cross joint welding method, it is characterised in that: in described step C,
Before being filled with welding, also the uneven position of groove back-welding shape part is carried out grinding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570008.0A CN106216808A (en) | 2016-07-18 | 2016-07-18 | Welding method for vertical weld joint of high-altitude thick plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570008.0A CN106216808A (en) | 2016-07-18 | 2016-07-18 | Welding method for vertical weld joint of high-altitude thick plate |
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| CN106216808A true CN106216808A (en) | 2016-12-14 |
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| CN201610570008.0A Pending CN106216808A (en) | 2016-07-18 | 2016-07-18 | Welding method for vertical weld joint of high-altitude thick plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296603A (en) * | 2017-01-12 | 2018-07-20 | 南京理工大学 | The two-sided double arc vertical position welding fusion penetration control devices of one kind and its welding method |
| CN109514052A (en) * | 2018-12-27 | 2019-03-26 | 安徽工业大学 | A kind of high-strength steel welding method of thin plate and application |
| CN110587214A (en) * | 2019-10-11 | 2019-12-20 | 中船黄埔文冲船舶有限公司 | Double-side welding tool |
| CN114654051A (en) * | 2022-03-22 | 2022-06-24 | 山东电力工程咨询院有限公司 | Method and system for improving vertical welding effect of carbon dioxide gas shielded welding |
| CN114700596A (en) * | 2022-04-02 | 2022-07-05 | 中建钢构工程有限公司 | Gas shield welding gun head and gas shield welding gun with same |
| CN116175060A (en) * | 2023-04-14 | 2023-05-30 | 华南理工大学 | Reverse welding horse plate technology for orthotropic steel bridge deck plate assembly welding positioning |
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|---|---|---|---|---|
| US4038514A (en) * | 1975-02-03 | 1977-07-26 | Reynolds Metals Company | Vertical welding of thick aluminum members |
| JPS53130251A (en) * | 1977-04-21 | 1978-11-14 | Nippon Kokan Kk <Nkk> | Gas shielded vertical position welding using high current density |
| CN101648310A (en) * | 2008-08-15 | 2010-02-17 | 中国海洋石油总公司 | Method for welding circular casings with large-thickness casing walls |
| CN202963812U (en) * | 2012-11-23 | 2013-06-05 | 象山焊接衬垫厂 | Welding backing for X-shaped butt joint |
| CN103252557A (en) * | 2013-05-30 | 2013-08-21 | 上海交通大学 | Welding method achieving medium thick plate backing welding without back gouging |
| CN103624366A (en) * | 2013-11-30 | 2014-03-12 | 招商局重工（江苏）有限公司 | Welding method for 180mm thickness spud leg rack of self-elevating drilling platform |
-
2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038514A (en) * | 1975-02-03 | 1977-07-26 | Reynolds Metals Company | Vertical welding of thick aluminum members |
| JPS53130251A (en) * | 1977-04-21 | 1978-11-14 | Nippon Kokan Kk <Nkk> | Gas shielded vertical position welding using high current density |
| CN101648310A (en) * | 2008-08-15 | 2010-02-17 | 中国海洋石油总公司 | Method for welding circular casings with large-thickness casing walls |
| CN202963812U (en) * | 2012-11-23 | 2013-06-05 | 象山焊接衬垫厂 | Welding backing for X-shaped butt joint |
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| CN103624366A (en) * | 2013-11-30 | 2014-03-12 | 招商局重工（江苏）有限公司 | Welding method for 180mm thickness spud leg rack of self-elevating drilling platform |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296603A (en) * | 2017-01-12 | 2018-07-20 | 南京理工大学 | The two-sided double arc vertical position welding fusion penetration control devices of one kind and its welding method |
| CN109514052A (en) * | 2018-12-27 | 2019-03-26 | 安徽工业大学 | A kind of high-strength steel welding method of thin plate and application |
| CN110587214A (en) * | 2019-10-11 | 2019-12-20 | 中船黄埔文冲船舶有限公司 | Double-side welding tool |
| CN110587214B (en) * | 2019-10-11 | 2022-05-10 | 中船黄埔文冲船舶有限公司 | Double-side welding tool |
| CN114654051A (en) * | 2022-03-22 | 2022-06-24 | 山东电力工程咨询院有限公司 | Method and system for improving vertical welding effect of carbon dioxide gas shielded welding |
| CN114654051B (en) * | 2022-03-22 | 2023-09-22 | 山东电力工程咨询院有限公司 | Method and system for improving vertical welding effect of carbon dioxide gas shielded welding |
| CN114700596A (en) * | 2022-04-02 | 2022-07-05 | 中建钢构工程有限公司 | Gas shield welding gun head and gas shield welding gun with same |
| CN114700596B (en) * | 2022-04-02 | 2024-05-28 | 中建钢构股份有限公司 | Gas-shielded welding gun head and gas-shielded welding gun with same |
| CN116175060A (en) * | 2023-04-14 | 2023-05-30 | 华南理工大学 | Reverse welding horse plate technology for orthotropic steel bridge deck plate assembly welding positioning |
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Application publication date: 20161214 |