CN110315174A - A kind of welding method of steel plate box beam - Google Patents
A kind of welding method of steel plate box beam Download PDFInfo
- Publication number
- CN110315174A CN110315174A CN201910664435.9A CN201910664435A CN110315174A CN 110315174 A CN110315174 A CN 110315174A CN 201910664435 A CN201910664435 A CN 201910664435A CN 110315174 A CN110315174 A CN 110315174A
- Authority
- CN
- China
- Prior art keywords
- welding
- box beam
- steel plate
- moulding bed
- assembly
- 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.)
- Pending
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
- B23K9/18—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
- B23K9/235—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
- B23K9/32—Accessories
-
- 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
- B23K2101/28—Beams
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Abstract
The invention discloses a kind of welding methods of steel plate box beam, assemble moulding bed by setting, play the role of steel plate box beam stationary positioned, effectively reduce the deformation generated in welding process；Box beam component to be welded is taken to be divided into several groups, segmented welding reduces box beam Welding difficulty, can greatly improve welding efficiency, shorten the construction period；Each weld seam welding direction when welding is conducive to steel plate stress release on the contrary, alternately, reduce welding deformation, improves welding precision；When tipping welding, the present invention is by very heavy top support, and displacement is few when can guarantee box beam tipping welding, facilitates weld groove to be aligned, improves welding quality.
Description
Technical field
The invention belongs to a kind of steel box girder construction field, the welding method of specifically a kind of steel plate box beam.
Background technique
Steel box girder is largely used in bridge construction at present, the generally existing length of steel plate box beam is big, and welding difficulty is big, easily
The problems such as deformation, the period is long.Welding quality quality, directly influences the intensity and quality of girder steel.In the prior art to steel plate box
Beam welding mostly uses manual welding, and it is not accurate that there are welding parameters, and arbitrarily big, weldquality is irregular, steel plate box beam body product
Huge with weight, the problems such as deflection is excessive in welding, is difficult to solve.
Summary of the invention
The object of the present invention is to provide a kind of welding method of steel plate box beam, specification steel plate box beam Welding improves welding matter
Amount.
Technical scheme is as follows:
A kind of welding method of steel plate box beam, it is characterised in that method includes the following steps:
(1), production assembly moulding bed；
(2), steel plate component needed for processing box beam processes the welding surface of each box beam component in 60-70 ° of groove；
(3), box beam component to be welded is divided into several groups, is installed on moulding bed and is aligned, and by ribbed stiffener and steel box-girder unit piece
Spot welding is fixed；Length is more than to remove 15 meter Shi Xu segmented weldings assembly welding again；
(4), installed at the both ends of the soldered of each box beam component steel plate draw, arc-extinguishing plate；And it is preheated to 100-150 °, successively
Tack welding is carried out, backing welding, filling weldering, filled layer is using submerged-arc welding；Every layer of throat depth control is within 6 millimeters, every layer of weldering
When connecing, welding direction is on the contrary, alternately, in the welding process, keep welding current, voltage, speed of welding basicly stable；
(5), it is welded into several components according to the above method, several components are finally lain in a horizontal plane in into assembly moulding bed, assembly welding；It spells
When welding equipment connects, is positioned by very heavy top support, box beam component is prevented to be subjected to displacement；
(6), after welding, support positioning is removed, it is cooling, obtain steel plate box beam.
The submerged-arc welding, welding current are 470~580A；Voltage is 25~30V；Speed of welding is 30-50
cm/min；Welding temperature is 210~280 °.
Advantages of the present invention, the specification of the present invention welding method of steel plate box beam assemble moulding bed by setting, play steel plate
The effect of box beam stationary positioned effectively reduces the deformation generated in welding process；Segmented welding is taken, box beam Welding hardly possible is reduced
Degree, can greatly improve welding efficiency, shorten the construction period；Each weld seam welding direction when welding is on the contrary, alternately, reduce welding shape
Become, be conducive to steel plate stress release, improves welding precision；When tipping welding, the present invention can guarantee box beam by very heavy top support
Displacement is few when tipping welding, and weld groove is facilitated to be aligned, and improves welding quality.
Has full embodiment
A kind of welding method of steel plate box beam, comprising the following steps:
(1), production assembly moulding bed；
(2), steel plate component needed for processing box beam processes the welding surface of each box beam component in 60-70 ° of groove；
(3), box beam component to be welded is divided into several groups, is installed on moulding bed and is aligned, and by ribbed stiffener and steel box-girder unit piece
Spot welding is fixed；Length is more than to remove 15 meter Shi Xu segmented weldings assembly welding again；
(4), installed at the both ends of the soldered of each box beam component steel plate draw, arc-extinguishing plate；And it is preheated to 120-150 °, successively
Carry out tack welding, backing welding protects weldering bottoming with welding electrode arc welding or CO2 gas, backing welding with a thickness of 4mm；Filling weldering, is filled out
Layer is filled using submerged-arc welding；The control of every layer of throat depth is within 6 millimeters, when every layer of welding, welding direction on the contrary, alternately,
Its welding current of submerged-arc welding is 470~580A；Voltage is 25~30V；Speed of welding is 30-50 cm/min；Welding temperature
It is 210~280 °.In the welding process, keep welding current, voltage, speed of welding basicly stable；
(5), it is welded into several components according to the above method, several components are finally lain in a horizontal plane in into assembly moulding bed, assembly welding；It spells
When welding equipment connects, is positioned by very heavy top support, box beam component is prevented to be subjected to displacement；
(6), after welding, support positioning is removed, it is cooling, obtain steel plate box beam.
Claims (2)
1. a kind of welding method of steel plate box beam, it is characterised in that method includes the following steps:
(1), production assembly moulding bed；
(2), steel plate component needed for processing box beam processes the welding surface of each box beam component in 60-70 ° of groove；
(3), box beam component to be welded is divided into several groups, is installed on moulding bed and is aligned, and by ribbed stiffener and steel box-girder unit piece
Spot welding is fixed；Length is more than to remove 15 meter Shi Xu segmented weldings assembly welding again；
(4), installed at the both ends of the soldered of each box beam component steel plate draw, arc-extinguishing plate；And it is preheated to 100-150 °, successively
Tack welding is carried out, backing welding, filling weldering, filled layer is using submerged-arc welding；Every layer of throat depth control is within 6 millimeters, every layer of weldering
When connecing, welding direction is on the contrary, alternately, in the welding process, keep welding current, voltage, speed of welding basicly stable；
(5), it is welded into several components according to the above method, several components are finally lain in a horizontal plane in into assembly moulding bed, assembly welding；It spells
When welding equipment connects, is positioned by very heavy top support, box beam component is prevented to be subjected to displacement；
(6), after welding, support positioning is removed, it is cooling, obtain steel plate box beam.
2. a kind of welding method for steel plates according to claim 1, it is characterised in that: the submerged-arc welding, weldering
Connecing electric current is 470~580A；Voltage is 25~30V；Speed of welding is 30-50 cm/min；Welding temperature be 210~
280°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664435.9A CN110315174A (en) | 2019-07-23 | 2019-07-23 | A kind of welding method of steel plate box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664435.9A CN110315174A (en) | 2019-07-23 | 2019-07-23 | A kind of welding method of steel plate box beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110315174A true CN110315174A (en) | 2019-10-11 |
Family
ID=68124251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910664435.9A Pending CN110315174A (en) | 2019-07-23 | 2019-07-23 | A kind of welding method of steel plate box beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110315174A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003074A (en) * | 2010-10-15 | 2011-04-06 | 中国建筑第八工程局有限公司 | Construction method for indoor long-span steel connecting bridge |
| CN104057189A (en) * | 2014-05-23 | 2014-09-24 | 浙江东南网架股份有限公司 | Novel U-shaped cross section component, special jig frame and processing and setting method |
| CN107142832A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of construction method of arc steel box-girder |
| CN107142833A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of segmented large span steel beam and its welding method |
| CN207840529U (en) * | 2018-01-11 | 2018-09-11 | 中国建筑土木建设有限公司 | Micro-tensioning system for steel construction girder steel plate piece leveling |
| CN208276406U (en) * | 2018-04-26 | 2018-12-25 | 天津中铁五新钢模有限公司 | A kind of automatic section box girder bed die angle steel positioning system |
-
2019
- 2019-07-23 CN CN201910664435.9A patent/CN110315174A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003074A (en) * | 2010-10-15 | 2011-04-06 | 中国建筑第八工程局有限公司 | Construction method for indoor long-span steel connecting bridge |
| CN104057189A (en) * | 2014-05-23 | 2014-09-24 | 浙江东南网架股份有限公司 | Novel U-shaped cross section component, special jig frame and processing and setting method |
| CN107142832A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of construction method of arc steel box-girder |
| CN107142833A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | A kind of segmented large span steel beam and its welding method |
| CN207840529U (en) * | 2018-01-11 | 2018-09-11 | 中国建筑土木建设有限公司 | Micro-tensioning system for steel construction girder steel plate piece leveling |
| CN208276406U (en) * | 2018-04-26 | 2018-12-25 | 天津中铁五新钢模有限公司 | A kind of automatic section box girder bed die angle steel positioning system |
Non-Patent Citations (1)
| Title |
|---|
| 王守明等: "《电焊工》", 31 May 1989 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103862142B (en) | Orthotropic plate U-shaped angle of rib weld seam robot prosposition single track balanced welding method | |
| CN101745718A (en) | Method for welding thin steel plate | |
| CN102632344A (en) | Welding deformation control process for ship superstructure | |
| CN107876938A (en) | Bridging method between a kind of electric arc increasing material manufacturing road based on mechanical arm swing | |
| CN103406667A (en) | Laser welding method of stainless steel sheet fillet weld and clamp thereof | |
| CN108031957A (en) | A kind of welding manufacture method of weather-proof all welded steel structured stiff girder suspension bridge | |
| CN102990266A (en) | Argon tungsten-arc welding clamp for butt joint of thin steel strips and using method | |
| CN102248281B (en) | Thick plate joint welding method | |
| CN110315174A (en) | A kind of welding method of steel plate box beam | |
| CN204224720U (en) | The energy-efficient anode steel jaw of electrolytic aluminum that a kind of and blast welding block total cross section welds | |
| CN104028880A (en) | Welding process method of aluminum profile car hook plate | |
| CN105798411B (en) | The compound docking method for welding of aluminium alloy ultrasound resistance | |
| CN108406156A (en) | A kind of low_input_power narrow gap vertical electro-gas method | |
| CN101823186A (en) | Welding method of ocean platform module wall board gas shielded flux-cored down weld | |
| CN204321394U (en) | A kind of thin plate splicing weld industry device | |
| CN207104167U (en) | A kind of EMUs water tank frid group mounted welder | |
| CN105269167A (en) | Full-load van front body plate welding process | |
| CN203282030U (en) | H-shaped steel gantry type automatic submerged-arc welding equipment | |
| CN204974825U (en) | Inboard apposition of two jack of steel construction cross post is corrected control and is warp device | |
| CN211966355U (en) | Adjustable clamp device for narrow-gap laser filler wire welding of medium-thickness titanium alloy plate | |
| CN210703047U (en) | Frame skin homonymy bull resistance welding machine | |
| CN203936548U (en) | Aluminum cell casing mold device | |
| CN102632323A (en) | Narrow gap welding method | |
| CN206105136U (en) | Single armed multistation butt -joint device | |
| CN207735828U (en) | A kind of folder for efficient welding weldment welds all-in-one machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191011 |
|
| RJ01 | Rejection of invention patent application after publication |