CN106001868A - Full penetration welding method for simultaneously welding H-shaped steel with two guns - Google Patents
Full penetration welding method for simultaneously welding H-shaped steel with two guns Download PDFInfo
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- CN106001868A CN106001868A CN201610330235.6A CN201610330235A CN106001868A CN 106001868 A CN106001868 A CN 106001868A CN 201610330235 A CN201610330235 A CN 201610330235A CN 106001868 A CN106001868 A CN 106001868A
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- 238000003466 welding Methods 0.000 title claims abstract description 94
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 230000035515 penetration Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003306 harvesting Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000002537 cosmetic Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method 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
- B23K9/235—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
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
- B23K9/1735—Arc welding or cutting making use of shielding gas and of a consumable electrode making use of several electrodes
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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)
- Arc Welding In General (AREA)
Abstract
The invention discloses a full penetration welding method for simultaneously welding H-shaped steel with two guns. The method includes the following steps of 1, machining of a web groove; 2, assembling; 3, positioned welding; 4, backing welding; and 5, filling cover face welding. The front gun and the rear gun are staggered to not to share a common weld pool so as to solve the arc noise problem of the two guns. Full penetration without back gouging is adopted, and proper welding current is controlled by controlling the web edge truncating amount to be 0-1 mm and the assembling gap to be 2.5-3.5 mm. The two sides of a web are simultaneously welded, camber deformation is eliminated, and welding efficiency is improved. A welding gun holder has swinging and staying functions.
Description
Technical field
Patent of the present invention relates to a kind of rush-harvesting and rush-planting welded H section steel complete penetration welding method simultaneously, belongs to welding technology field.
Background technology
H profile steel is lightweight because of it, and mechanical property is good, is often used in heavy construction (such as Factory Building, skyscraper etc.),
In bridge, boats and ships, handling machinery, equipment Foundations, support, foundation pile.The acquisition of H profile steel at present can be by heat
Rolling and weld two ways, hot rolled H-shaped have the advantage that on cross section, each point extension is more uniform, internal stress is little.Welded H
Shaped steel has and combination arbitrarily devised with engineering, and can manufacture special requirement, coordinates being actually needed of special engineering.When little
Specific demand in batches, during inconvenience die sinking rolling, can pass through the H profile steel that welding manufacture is special.For stress complexity, have
For for the welded H section steel of requirement of strength, it is desirable to bevel process to be carried out to web, it is ensured that four longitudinal angle weld seams
Full penetration.Simultaneously need to use rational welding sequence and welding method, control angular deformation that web and wing plate occur,
Amount of deflection and camber deformation.
Summary of the invention
It is an object of the invention to provide a kind of full penetration, without back chipping, the H profile steel pair that welding efficiency is high, welding deformation is little
Rifle welding procedure.
To achieve these goals, the comprising the following steps that of the present invention
Step 1: processing web groove, web groove prescription: web opens 45 ° of grooves of bilateral, root face 0-1mm；
Step 2: it is right to organize；Remove wing plate region and to the water in the range of the 25mm of weld edge surface, oxide skin, rust,
Greasy dirt, paint etc., and by clean for dust eliminating impurities；The starting the arc splaying 2.5mm of web and wing plate, receives arc splaying
3.5mm；
Step 3: tack welding；Positioning welding uses ER50-6 welding wire to carry out positioning welding, and tack weld length should be greater than
40mm, spacing is 300mm～500mm, welding current 10-15% bigger than normal weld electric current, it is ensured that positioning welding position
All penetrations；
Step 4: bottoming is welded；Welding wire selects the ER50-6 solid welding wire of diameter 1.2mm, and web both sides arrange two
Welding gun is respectively front rifle, rear rifle, front rifle and the rear rifle 50mm that staggers and moves simultaneously, welding gun anterior equipped with contact weld seam with
Track system, dry extension of electrode 16-18mm, alignment web root, front rifle welding current 240-260A, voltage 26-27V,
Rear rifle electric current 260-280A, voltage 29-30V, translational speed 360mm/min, shield gas flow rate 20-25L/min,
Welding process is without swinging；
Step 5: fill cover welding；Filling cosmetic welding and use welding ER50-6 solid welding wire, rush-harvesting and rush-planting electric current is electricity
Stream 280-290A, voltage 29-30V, simultaneously translational speed 400mm/min, shield gas flow rate 20-25L/min, weldering
Silk stem elongation 16-18mm, amplitude of fluctuation, according to depending on bevel for welding width, swings 0.2s of the upper time of staying, during lower stop
Between 0.1s, hunting frequency 0.5Hz；The twice welding condition that cover welding uses is identical with filling weldering；
There is run-on tab the H profile steel starting the arc and receipts arc position and receives arc plate, are used for eliminating the starting the arc, blow-out position defect and extending weldering
Seam is followed the tracks of.
Contact seam tracking system has upper and lower autotracker, front and back autotracker, contacts weld joint tracking system
System and welding gun are at a distance of 80mm.
Rush-harvesting and rush-planting electric arc interference problem, is staggered so that front rifle and rear rifle not congruent melting pond eliminate by front and back's rifle.Not back chipping fine melt
Thoroughly, by controlling web root face amount 0-1mm, group is to gap 2.5-3.5mm, suitable welding current control.Web two
Side is welded simultaneously, eliminates camber deformation, promotes welding efficiency.Welding gun holder has swing and resident functions.
Accompanying drawing explanation
Fig. 1 is the welding schematic diagram of present example；
Fig. 2 is present example run-on tab and receives arc plate installation site；
Fig. 3 is that present example web and groups of vanes are to schematic diagram；
Fig. 4 is groove of the present invention, root face parameter schematic diagram.
1-web in figure；2-wing plate；Rifle before 3-；Rifle after 4-；5-seam tracking system；6-welding gun holder；7-is left
Right autotracker；The upper and lower autotracker of 8-；9-run-on tab；10-arc-extinguishing plate.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
The present invention as a example by Q345 Plate Welding becomes H profile steel, its median ventral plate size 3000mm × 400mm × 16mm, wing plate
Size 3000mm × 300mm × 20mm.
Step 1: web groove prescription.Using machining means to be processed into the groove of Fig. 2, it is wide that bilateral opened by web
45 ° of grooves, root face strict guarantee 0-1mm.
Step 2: it is right to organize.Remove wing plate region and to the water (moist) in the range of the 25mm of weld edge surface, oxide skin,
Rust, greasy dirt, paint etc., and by clean for dust eliminating impurities.Between the starting the arc end (initial welding position) of web and wing plate
Gap 2.5mm, receives arc end (welding end position) position gap 3.5mm.
Step 3: tack welding.Positioning welding uses ER50-6 welding wire to carry out positioning welding, and tack weld length should be greater than
40mm, spacing is preferably 300mm～500mm, spot welding current 260-280A, and (welding current is bigger than normal weld electric current
10-15%), it is ensured that the whole penetration in positioning welding position, the oxide layer on spot welding surface is removed in polishing.
Step 4: bottoming is welded.Welding wire selects the ER50-6 solid welding wire of diameter 1.2mm, such as Fig. 1 web both sides welding gun
Front and back stagger 50mm (one in front and one in back welding along web, longitudinal separation 50mm) simultaneously starting the arc from run-on tab,
Welding gun is anterior equipped with contact seam tracking system, dry extension of electrode 16-18mm, is directed at web root；Before web side
Rifle welding current 240-260A, voltage 26-27V, it is achieved single-side welding double-side forming, rifle electric current after web opposite side
260-280A, voltage 29-30V, it is ensured that full penetration；Translational speed 360mm/min, shield gas flow rate 20-25L/min,
Welding process is without swinging.
Step 5: fill cover welding.Filling weldering and use welding ER50-6 solid welding wire, rush-harvesting and rush-planting electric current is electric current
280-290A, voltage 29-30V realize the uniform filling of symmetrical groove；Translational speed 400mm/min simultaneously, protective gas
Flow 20-25L/min, dry extension of electrode 16-18mm, amplitude of fluctuation 3mm, swing 0.2s of the upper time of staying, lower stop
Time 0.1s, hunting frequency 0.5Hz.Cover welding uses twice welding condition identical with filling weldering.
Step 6: carry out ultrasonic inspection detection after workpiece has welded 24h.
The H profile steel starting the arc and receive arc position and have 150mm long inverted T shape run-on tab and receive each one piece of arc plate, be used for eliminating the starting the arc,
Blow-out position defect and prolongation weld joint tracking.
Contact seam tracking system is upper and lower, left and right autotracker, it is ensured that be not partially welded, autotracker adjusting range
For-50mm-+50mm.
Rush-harvesting and rush-planting electric arc interference problem, is staggered so that front rifle and rear rifle not congruent melting pond eliminate by front and back's rifle.
Full penetration, needs to control web root face amount 0-1mm simultaneously, and group is to gap 2.5-3.5mm.
Web both sides are welded simultaneously, eliminate camber deformation.
Welding gun holder swings and ensures enough weld widths, stops up and down and controls undercut and stay.
The technique of the rush-harvesting and rush-planting of present invention welded H section steel simultaneously, welding efficiency is high, and welding deformation is little, and appearance of weld is the most beautiful
See, it is possible to realize root full penetration, be a kind of technology can being widely popularized in H profile steel is welded.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (5)
1. a rush-harvesting and rush-planting welded H section steel complete penetration welding method simultaneously, it is characterised in that comprise the following steps:
Step 1: processing web groove；
Step 2: it is right to organize；
Step 3: tack welding；Positioning welding uses ER50-6 welding wire to carry out positioning welding, and tack weld length should be greater than
40mm, spacing is 300mm～500mm, welding current 10-15% bigger than normal weld electric current, it is ensured that positioning welding position
All penetrations；
Step 4: bottoming is welded；Welding wire selects the ER50-6 solid welding wire of diameter 1.2mm, and web both sides arrange two
Welding gun is respectively front rifle, rear rifle, front rifle and the rear rifle 50mm that staggers and moves simultaneously, welding gun anterior equipped with contact weld seam with
Track system, dry extension of electrode 16-18mm, alignment web root, front rifle welding current 240-260A, voltage 26-27V,
Rear rifle electric current 260-280A, voltage 29-30V, translational speed 360mm/min, shield gas flow rate 20-25L/min,
Welding process is without swinging；
Step 5: fill cover welding；Filling cosmetic welding and use welding ER50-6 solid welding wire, rush-harvesting and rush-planting electric current is electricity
Stream 280-290A, voltage 29-30V, simultaneously translational speed 400mm/min, shield gas flow rate 20-25L/min, weldering
Silk stem elongation 16-18mm, amplitude of fluctuation, according to depending on bevel for welding width, swings 0.2s of the upper time of staying, during lower stop
Between 0.1s, hunting frequency 0.5Hz；The twice welding condition that cover welding uses is identical with filling weldering.
Rush-harvesting and rush-planting the most according to claim 1 welded H section steel complete penetration welding method simultaneously, it is characterised in that
Web groove prescription: web opens 45 ° of grooves of bilateral, root face 0-1mm.
Rush-harvesting and rush-planting the most according to claim 1 welded H section steel complete penetration welding method simultaneously, it is characterised in that
The starting the arc splaying 2.5mm of web and wing plate, receives arc splaying 3.5mm.
Rush-harvesting and rush-planting the most according to claim 1 welded H section steel complete penetration welding method simultaneously, it is characterised in that
The H profile steel starting the arc and receive arc position and have run-on tab and receive arc plate, be used for eliminating the starting the arc, blow-out position defect and extend weld seam with
Track.
Rush-harvesting and rush-planting the most according to claim 1 welded H section steel complete penetration welding method simultaneously, it is characterised in that
Contact seam tracking system has upper and lower autotracker, front and back autotracker, contact seam tracking system and weldering
Rifle is at a distance of 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330235.6A CN106001868B (en) | 2016-05-18 | 2016-05-18 | A kind of rush-harvesting and rush-planting while welded H section steel complete penetration welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330235.6A CN106001868B (en) | 2016-05-18 | 2016-05-18 | A kind of rush-harvesting and rush-planting while welded H section steel complete penetration welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001868A true CN106001868A (en) | 2016-10-12 |
| CN106001868B CN106001868B (en) | 2018-06-22 |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735772A (en) * | 2016-12-29 | 2017-05-31 | 吉林大学 | The device and method of the double arc automatic MIG weldering welding of aluminum alloy two-side |
| CN106891081A (en) * | 2017-04-28 | 2017-06-27 | 广船国际有限公司 | A kind of vertical corner connection double-wire automatic welding connects method |
| CN107008992A (en) * | 2017-05-26 | 2017-08-04 | 中车石家庄车辆有限公司 | Continuous welding method |
| CN107520528A (en) * | 2017-07-18 | 2017-12-29 | 中车青岛四方机车车辆股份有限公司 | A kind of aluminium and aluminium alloy double-gun double-face cooperates with welding method |
| CN107598340A (en) * | 2017-10-26 | 2018-01-19 | 上海振华重工(集团)股份有限公司 | Big thick plate T-joint welding method |
| CN108161190A (en) * | 2017-12-27 | 2018-06-15 | 湖南响箭重工科技有限公司 | A kind of rush-harvesting and rush-planting Double Wire Welding device and method |
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| CN108746943A (en) * | 2018-06-06 | 2018-11-06 | 湖北天图桥梁技术研究有限公司 | H profile steel beam manufacturing method |
| CN109175614A (en) * | 2018-08-23 | 2019-01-11 | 中国船舶重工集团公司第七二五研究所 | A kind of two-sided double asynchronous welding methods of arc of titanium or titanium alloy T-type reinforcement structure |
| CN110340497A (en) * | 2019-07-12 | 2019-10-18 | 浙江东南网架股份有限公司 | A kind of not back chipping realizes the welding procedure method of stainless steel H profile steel ontology T-type penetration |
| CN110814468A (en) * | 2019-09-27 | 2020-02-21 | 沪东中华造船(集团)有限公司 | T-shaped joint double-sided arc back-gouging-free penetration welding method |
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| CN107008992B (en) * | 2017-05-26 | 2019-09-17 | 中车石家庄车辆有限公司 | Continuous welding method |
| CN107008992A (en) * | 2017-05-26 | 2017-08-04 | 中车石家庄车辆有限公司 | Continuous welding method |
| CN107520528A (en) * | 2017-07-18 | 2017-12-29 | 中车青岛四方机车车辆股份有限公司 | A kind of aluminium and aluminium alloy double-gun double-face cooperates with welding method |
| CN107598340A (en) * | 2017-10-26 | 2018-01-19 | 上海振华重工(集团)股份有限公司 | Big thick plate T-joint welding method |
| CN107598340B (en) * | 2017-10-26 | 2020-09-15 | 上海振华重工(集团)股份有限公司 | Method for welding T-shaped joint of large thick plate |
| CN108161190A (en) * | 2017-12-27 | 2018-06-15 | 湖南响箭重工科技有限公司 | A kind of rush-harvesting and rush-planting Double Wire Welding device and method |
| CN108746943A (en) * | 2018-06-06 | 2018-11-06 | 湖北天图桥梁技术研究有限公司 | H profile steel beam manufacturing method |
| CN108746943B (en) * | 2018-06-06 | 2020-06-30 | 湖北天图桥梁技术研究有限公司 | Manufacturing method of H-shaped steel beam |
| CN108608214A (en) * | 2018-06-22 | 2018-10-02 | 北京京诚之星科技开发有限公司 | A kind of Ripple Sternum welding fabrication equipment and method |
| CN108608214B (en) * | 2018-06-22 | 2023-07-25 | 北京京诚瑞信长材工程技术有限公司 | Corrugated web H-shaped steel welding forming equipment and method |
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