CN102029473A - Aerological welding method of steel sleeve - Google Patents
Aerological welding method of steel sleeve Download PDFInfo
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- CN102029473A CN102029473A CN2009101963975A CN200910196397A CN102029473A CN 102029473 A CN102029473 A CN 102029473A CN 2009101963975 A CN2009101963975 A CN 2009101963975A CN 200910196397 A CN200910196397 A CN 200910196397A CN 102029473 A CN102029473 A CN 102029473A
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Abstract
The invention relates to steel structure construction, in particular to a steel sleeve welding method. The aerological welding method of the steel sleeve comprises the following steps of: (1) processing arc plates of the steel sleeve one by one and pre-assembling before leaving the factory; (2) hoisting the arc plates of the steel sleeve at high altitude on spot in place; (3) mounting a rigid fixing and welding deformation adjustment device and carrying out positioned welding after the device is adjusted; (4) welding vertical seams; (5) welding transverse seams; and (6) after an arc plate crossing two steel sleeves is welded, dismantling the rigid fixing and welding deformation adjustment device. The invention greatly reduces the consumption of auxiliary steel, has least damages to the appearance of the steel sleeve body and guarantees that the aerological welding deformation of the steel sleeve meets the requirements.
Description
Technical field
The present invention relates to Construction of Steel Structure, relate in particular to a kind of steel bushing welding method.
Background technology
Steel construction is low from heavy and light, foundation cost with it, be applicable to soft foundation, install easily, construction is fast, the cycle is short, gain quick return, the construction pollution environment reaches advantages such as anti-seismic performance is good less in investment, and with its superior structural behaviour and good overall economic efficiency, aspects such as house, bridge, tower mast, pipeline, storage tank, pressure vessel and water conservancy project have obtained using widely at home.The welding of steel construction product has become one of important processing technology.The distortion that steel construction welding back produces is the problem that often occurs in the steel construction use, and the distortion that steel construction welding back takes place is broadly divided into two kinds of situations: the distortion of promptly integrally-built distortion and structure partial.Integrally-built distortion comprises that the vertical and horizontal of structure shorten and crooked (being warpage).It is multiple that local deformation shows as male bend, waveform, angular deformation etc.
The measure that prevents and reduce the steel construction welding deformation mainly contains at present: 1 welded appropriate design; Welding code and method of operating are strictly observed in 2 welding operations; 3 reduce the measure (improvement of prestrain method, rigid fixation, hammering weld seam method, welding procedure) of welding deformation; 4 increase the rich amount of shrinking.Occur generally taking mechanical orthosis and flame correction method to correct after the welding deformation.
The welding deformation problem that not every measure occurs steel construction can both be suitable for.Some measure can't be suitable for because of the restriction that is subjected to conditions such as on-the-spot place, weather, space.Also to take concrete measure at concrete problem.
The hoisting steel plate back in place that to be processed into arc in the high-altitude in advance is made into round buss to reinforce existing reinforced concrete chimney by outer one-sided welding, and this reinforcement technique does not also have the reinforcement technique of this respect at present both at home and abroad, does not have corresponding document introduction yet.And at the scene in the implementation process, steel bushing gross distortion problem has appearred, can't meet the demands taking the steel bushing reinforcement technique to continue to use existing welding deformation control technology to existing reinforced concrete chimney.
In the technical field relevant with the application,
Chinese invention patent open CN101011781 provide welding deformation controlling method in a kind of bridge steel pylon manufacturing process, and it is by the fabrication scheme with " plate → plate → plate unit → block → casing ", and welding deformation is realized grading control.Assembling ribbed stiffener after the plate straightening is formed plate, plate connects to form block with diaphragm plate and wallboard unit, four angles in the middle of forming the plate unit, when forming casing, there are element solder such as middle diaphragm plate, sidewall paneling, inside panel, exterior panel could form the textural anomaly complexity again.Inapplicable to the steel bushing welding.
Chinese invention patent open CN1554508 provide a kind of large-sized structural parts welding deformation controlling method, it is by reserve allowance for shrinkage on part blanking and structural member fitted position, and large-sized structural parts is divided into plurality of sub portion cover, respectively with each sub-portion cover assembling earlier, welding again; Each sub-portion cover that welding is good is assembled into integral body, welding again; Postwelding structural parts whole annealing destressing; After heat treatment, before the transportation, arrange lacing wire in the region of interest of structural member.Prevent welding deformation by the mode of setting up lacing wire.Setting up lacing wire for the steel bushing outside for circular arc stops deformation effect poor.
Chinese invention patent open CN1915573 provide a kind of method for controlling welding deformations of special type motor bedplate, it uses support and process flange with the support fixation, at top ring outer surface X, Y cross centre line, draw the eight equal parts line in the top ring commissure, use acetone or silk to clean groove before the argon arc welding bottoming, postwelding adopts dihedral emery wheel reconditioning weld seam, dye penetrant inspection, weld synchronously by technological requirement and welding sequence symmetry by two welders at last, interlayer temperature is controlled at 50 ℃, every weldering one deck, air pressure gun vibration hammering 5-8 time, welding finishes, and superficial layer does not vibrate hammering.Welding sequence is loaded down with trivial details, the required precision height.Construction can't meet the demands to steel bushing.
The open CN1294039 of Chinese invention patent provides a kind of welding deformation controlling method of blades for axial-flow water turbine, the steel plate that it will cut slivering erects, cloth is face of blade to be repaired, and one-tenth space network, with steel plate and blade firm welding, blade is carried out the large tracts of land welding then, after welding is finished, steel plate is cut off in the integral high-temperature tempering at once after the tempering.The steel plate that erects plays the rigid support effect, and steel consumption is big, the welding, the cutting workload big, take long processing time.Set up the badly broken of Steel vertical plate, to big, the weak effect of outer anticorrosion surface treatment difficulty of steel bushing from now on to the steel bushing surface.
Summary of the invention
The present invention is intended to address the aforementioned drawbacks, and a kind of steel bushing high-altitude welding method is provided.The present invention significantly reduces auxiliary rolled steel dosage, and is minimum to the appearance damage of steel bushing body, and guaranteed that the high-altitude welding deformation of steel bushing meets the demands.
The present invention is achieved in that a kind of steel bushing high-altitude welding method, and it comprises the following steps:
Described steel bushing high-altitude welding method, described welding deformation adjusting device comprises unfitness of butt joint guiding mechanism and clearance adjustment mechanism.
Described steel bushing high-altitude welding method, described unfitness of butt joint guiding mechanism comprises: a Karma and a wedge, described Karma breach inwardly is welded on one side of steel pipe interface evagination, one side and described wedge with its level be welded on the steel pipe interface, and and described Karma is corresponding is provided with.
Described steel bushing high-altitude welding method, described clearance adjustment mechanism is arranged on the gusset plate joint of steel bushing, it is made up of the punching pin of an arm-tie, two locating pieces with holes and four tapers, locating piece is installed in two sections gusset plate plate mouths that need butt joint respectively, and two place's openings on the arm-tie overlapped locating piece to be fixed with two punching pines.
The present invention has not only cancelled a large amount of auxiliary lacing wire or Steel vertical plate, also need not be assembled into block earlier goes integrated again, rigidly fix and directly to carry out welding procedure after the welding deformation adjusting device installs and fixes, to rigidly fix welding deformation device dismounting back detail sanding after welding procedure is intact gets final product, significantly reduced the consumption of auxiliary steel, guaranteed that welding deformation is controlled, and such device has dropped to the breakage of steel bushing outer surface minimum.
Description of drawings
Below, further specify the specific embodiment of the present invention in conjunction with the accompanying drawings:
Fig. 1 is a welding deformation adjusting device schematic diagram of the present invention.
Fig. 2 is described arc schematic diagram.
The specific embodiment
A kind of steel bushing high-altitude welding method, it comprises the following steps:
Described welding deformation adjusting device, it is connected two steel bushing outer wall interfaces to be aimed at, and it comprises: unfitness of butt joint guiding mechanism and clearance adjustment mechanism.
Described unfitness of butt joint guiding mechanism comprises: a Karma 4 and a wedge 3, described Karma 4 breach inwardly are welded on one side 2 of steel pipe interface evagination, and described wedge 3 with its level while being welded on 1 of steel pipe interface indent, and and described Karma 4 corresponding settings.Karma 4 and wedge 3 mainly are the unfitnesses of butt joint that is used for adjusting docking port, in the use Karma 4 is installed in the side that the plate stomatodeum is entered, wedge 3 is installed in the side that the plate mouth protrudes, utilize hammer to hit wedge 3 again, by Karma 4 the plate mouth that falls in is pulled out, wedge 3 is compressed into the plate mouth that protrudes, till the unfitness of butt joint of plate mouth reaches in the assentment scope.
Described clearance adjustment mechanism is arranged on gusset plate 7 joints of steel bushing, it is made up of the punching pin 6 of an arm-tie 5, two locating pieces with holes 8 and four tapers, locating piece 8 is installed in two sections gusset plates, the 7 plate mouths that need butt joint respectively, and it is fixing that two place's openings on the arm-tie 5 overlapped two punching pines of locating piece 8 usefulness 6.It is fixing that two place's openings during use on the arm-tie 5 overlapped two punching pines of locating piece 8 usefulness 6.When the butt joint excesssive gap of two sections gusset plates need be turned down, between locating piece 8 and arm-tie 5 two ends blocks, insert two punching pines 6 by form shown in Figure 1, punching pin 6 afterbodys that hit with a hammer are then drawn two sections gusset plates over to one's side.Otherwise, inserting two punching pines 6 between the block in the middle of locating piece 8 and the arm-tie 5, the punching pin 6 that hits with a hammer can open two sections gusset plates, thereby increases the butt joint gap.
Embodiment:
Certain reinforced concrete chimney because of cylindrical shell concrete heavy corrosion lost strength, in order to realize the strengthening construction that do not stop production, adopts the wet method Scheme of Strengthening of outsourcing steel bushing at last by the demonstration decision, this reinforced concrete chimney has been implemented consolidation process.Specific practice is as follows:
The actual reinforced concrete chimney external diameter in scene is measured, the outsourcing steel bushing is divided into several arc burst processing according to plate size, and pre-assembling before dispatching from the factory;
It is in place that upper air installing is carried out at steel bushing arc motion scene;
Installation rigidly fixes welding deformation adjusting device (see figure 1), and carries out tack welding earlier after adjusting unfitness of butt joint and gap;
After finishing tack welding arc 9 shown in Figure 2 is installed again, is implemented to reinforce welding at last, the weldering cross joint welds the horizontal position welding seam more earlier.The concrete operations main points:
Welding procedure
Gusset plate material Q345B, thickness of slab 10mm;
Welding position: horizontal position welding, vertical position welding
Welding method: SMAW
Welding sequence:
Overall welding sequence: upright earlier seam back transverse joint.
During the transverse joint welding, be distributed in the simultaneously synchronous symmetrical welding of weld seam on every side by 3～6 welders.
When standing seam welding, by 2 welders welding synchronously simultaneously.
Adopting segmentation to regress when every welder welds welds.
The welding process points for attention
Striking is carried out in welding bead, can not the starting the arc on the mother metal beyond the welding bead district.
Should be specifically noted that the quality of joint and receipts arc in the welding, the molten bath should be filled up when receiving arc.
During multi-pass welding, joint staggers more than the 50mm, and continuous sequence.
The suitable continuous sequence of welding, each layer welding bead have welded back dress watch in time, weldering again after the removal of defects.
In the welding process, the way scarfing cinder is also checked.Avoid occurring wedge angle, if having then with gouge or polishing.
The slag on the timely trimming of postwelding welder surface and the splash of both sides are checked the weld appearance quality.Quality inspection personnel is carried out the welding record after the passed examination.
Welding job finishes, and weld metal zone and place, welding job position are cleaned out.
Welding variables sees Table 1
Table 2 welding variables
Welding finishes, and removes and rigidly fixes the welding deformation device, and detail sanding is at last to steel bushing outer wall brushing anticorrosive paint.
The good back of welding is checked the welding texturing quality, satisfies the welding deformation requirement fully.
Claims (4)
1. a steel bushing high-altitude welding method is characterized in that it comprises the following steps:
Step 1, the processing of steel bushing arc burst, pre-assembling before dispatching from the factory;
Step 2, the on-the-spot upper air installing of steel bushing arc is in place;
Step 3 is installed and is rigidly fixed the welding deformation adjusting device, and carries out tack welding earlier after adjusting;
Step 4, upright seam welding;
Step 5, the transverse joint welding;
Step 6 behind the arc of two steel bushings of welding cross-over connection, is removed and is rigidly fixed the welding deformation device.
2. a steel bushing high-altitude welding method is characterized in that, described welding deformation adjusting device comprises unfitness of butt joint guiding mechanism and clearance adjustment mechanism.
3. steel bushing according to claim 2 high-altitude welding method, it is characterized in that, described unfitness of butt joint guiding mechanism comprises: a Karma and a wedge, described Karma breach inwardly is welded on one side of steel pipe interface evagination, and described wedge is welded on the steel pipe interface with one side of its level, and and described Karma is corresponding is provided with.
4. steel bushing according to claim 2 high-altitude welding method, it is characterized in that, described clearance adjustment mechanism is arranged on the gusset plate joint of steel bushing, it is made up of the punching pin of an arm-tie, two locating pieces with holes and four tapers, locating piece is installed in two sections gusset plate plate mouths that need butt joint respectively, and two place's openings on the arm-tie overlapped locating piece to be fixed with two punching pines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910196397 CN102029473B (en) | 2009-09-25 | 2009-09-25 | Aerological welding method of steel sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910196397 CN102029473B (en) | 2009-09-25 | 2009-09-25 | Aerological welding method of steel sleeve |
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| CN102029473A true CN102029473A (en) | 2011-04-27 |
| CN102029473B CN102029473B (en) | 2013-01-23 |
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| CN 200910196397 Expired - Fee Related CN102029473B (en) | 2009-09-25 | 2009-09-25 | Aerological welding method of steel sleeve |
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Cited By (12)
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| CN102601531A (en) * | 2012-03-20 | 2012-07-25 | 江苏中科四象激光科技有限公司 | Laser welding fixture with back protection function |
| CN102896432A (en) * | 2011-07-27 | 2013-01-30 | 上海宝冶集团有限公司 | Method for installing vertical section of overhead large-diameter pipeline |
| CN103586611A (en) * | 2013-11-07 | 2014-02-19 | 中国华冶科工集团有限公司 | Furnace-shell steel-plate butt-joint fixture and using method thereof |
| CN104047456A (en) * | 2013-03-13 | 2014-09-17 | 宜兴市工业设备安装有限公司 | Longitudinal seam spliced adjustable clamp of large-sized storage tank |
| CN104708255A (en) * | 2015-03-12 | 2015-06-17 | 中国能源建设集团浙江火电建设有限公司 | Module assembly anti-deformation and welded junction fitting-up wedge-shaped tool |
| CN106695146A (en) * | 2015-11-18 | 2017-05-24 | 上海宝冶集团有限公司 | Method for plate butt joint during steel bridge mounting |
| CN106895252A (en) * | 2017-03-10 | 2017-06-27 | 广州增立钢管结构股份有限公司 | A kind of steel pipe and its manufacture method with blocking magnetic conduction construction |
| CN106975857A (en) * | 2017-04-13 | 2017-07-25 | 中国葛洲坝集团第工程有限公司 | A kind of assembled device of the lossless pressure head of penstock longitudinal joint and assembling method |
| CN109014632A (en) * | 2018-09-29 | 2018-12-18 | 北京首钢建设集团有限公司 | A method of welding deformation is controlled using rectangle steel plate |
| CN109304554A (en) * | 2018-12-05 | 2019-02-05 | 保定天威电气设备结构有限公司 | A kind of restorative procedure of power transformer enclosure postwelding angular deviation |
| CN109626212A (en) * | 2018-12-21 | 2019-04-16 | 中国电建集团核电工程有限公司 | Chimney installation auxiliary device |
| CN114310100A (en) * | 2021-11-29 | 2022-04-12 | 上海江南长兴造船有限责任公司 | Device and method for controlling butt welding deformation of section steel |
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| CN100493799C (en) * | 2006-03-20 | 2009-06-03 | 上海锅炉厂有限公司 | Method of welding the plug in type connection tube and the un-orthogonal crossed connection joint of the cylinder |
| CN100560883C (en) * | 2007-07-12 | 2009-11-18 | 中冶京唐建设有限公司 | The preparation method of double-distortion arc box body structure |
| CN100500508C (en) * | 2007-07-30 | 2009-06-17 | 黄润樟 | Mounting method for shaft tube peculiar to vessel |
| CN100491044C (en) * | 2007-11-23 | 2009-05-27 | 鞍钢建设集团有限公司 | Large caliber aluminium alloy pipeline non-pad tungsten electrode argon arc single face welding and double face shaping method |
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2009
- 2009-09-25 CN CN 200910196397 patent/CN102029473B/en not_active Expired - Fee Related
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| CN102896432A (en) * | 2011-07-27 | 2013-01-30 | 上海宝冶集团有限公司 | Method for installing vertical section of overhead large-diameter pipeline |
| CN102896432B (en) * | 2011-07-27 | 2016-03-30 | 上海宝冶集团有限公司 | High-altitude big-diameter pipeline vertical section pipe installation method |
| CN102601531A (en) * | 2012-03-20 | 2012-07-25 | 江苏中科四象激光科技有限公司 | Laser welding fixture with back protection function |
| CN104047456A (en) * | 2013-03-13 | 2014-09-17 | 宜兴市工业设备安装有限公司 | Longitudinal seam spliced adjustable clamp of large-sized storage tank |
| CN103586611A (en) * | 2013-11-07 | 2014-02-19 | 中国华冶科工集团有限公司 | Furnace-shell steel-plate butt-joint fixture and using method thereof |
| CN104708255A (en) * | 2015-03-12 | 2015-06-17 | 中国能源建设集团浙江火电建设有限公司 | Module assembly anti-deformation and welded junction fitting-up wedge-shaped tool |
| CN106695146A (en) * | 2015-11-18 | 2017-05-24 | 上海宝冶集团有限公司 | Method for plate butt joint during steel bridge mounting |
| CN106895252A (en) * | 2017-03-10 | 2017-06-27 | 广州增立钢管结构股份有限公司 | A kind of steel pipe and its manufacture method with blocking magnetic conduction construction |
| CN106975857A (en) * | 2017-04-13 | 2017-07-25 | 中国葛洲坝集团第工程有限公司 | A kind of assembled device of the lossless pressure head of penstock longitudinal joint and assembling method |
| CN109014632A (en) * | 2018-09-29 | 2018-12-18 | 北京首钢建设集团有限公司 | A method of welding deformation is controlled using rectangle steel plate |
| CN109304554A (en) * | 2018-12-05 | 2019-02-05 | 保定天威电气设备结构有限公司 | A kind of restorative procedure of power transformer enclosure postwelding angular deviation |
| CN109626212A (en) * | 2018-12-21 | 2019-04-16 | 中国电建集团核电工程有限公司 | Chimney installation auxiliary device |
| CN109626212B (en) * | 2018-12-21 | 2020-05-15 | 中国电建集团核电工程有限公司 | Chimney installation auxiliary device |
| CN114310100A (en) * | 2021-11-29 | 2022-04-12 | 上海江南长兴造船有限责任公司 | Device and method for controlling butt welding deformation of section steel |
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| CN102029473B (en) | 2013-01-23 |
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