CN103418994A - Method for equal-strength butt joint of steel tubes - Google Patents
Method for equal-strength butt joint of steel tubes Download PDFInfo
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- CN103418994A CN103418994A CN2013103218780A CN201310321878A CN103418994A CN 103418994 A CN103418994 A CN 103418994A CN 2013103218780 A CN2013103218780 A CN 2013103218780A CN 201310321878 A CN201310321878 A CN 201310321878A CN 103418994 A CN103418994 A CN 103418994A
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Abstract
The invention discloses a method for equal-strength butt joint of steel tubes. The method includes the steps of prefabrication of a steel backing and a bottom backing steel tube, assembly and butt joint of the steel backing, position adjusting and welding of the steel backing, cutting of a steel handle, and repair welding of a gap. The method has the advantages that the position adjusting of the steel backing can be performed without efforts and a large amount of time, and weld seam formation quality is good.
Description
Technical field
The present invention relates to the pipeline docking calculation, specifically refer to a kind of for strong docking calculations such as steel pipes.
Background technology
In the structural steelwork construction, when particularly truss erects web member, diagonal web member Assembling, mutual interference because of intersection interface and main chord, can't install into, web member need be blocked is three sections, will first install with two sections of intersection mouth, then middle straight section penstock installation is entered, but steel pipe docking must meet first-order weld, the strong weld such as reach; In addition, a large amount of steel core concrete columns that adopt in high-rise building steel structure, the steel pipe docking is the strong docking such as first-order weld, but due to the gap between steel sleeve and steel pipe less (common diameter between the two differs 1 ~ 2mm), be difficult to fix put in place when the opposite side steel pipe is installed steel sleeve is inserted in, even steel sleeve be touched down and break.
Summary of the invention
The object of the present invention is to provide a kind of for strong docking calculations such as steel pipes, utilize preliminary election assembling steel sleeve, be selected in advance steel pipe docking port inside and add the steel sleeve with the identical material of steel pipe, adopt single face welding and double face shaping technique during welding, to guarantee the realization of the strong weld technique such as efficient.
Implementation of the present invention is as follows: a kind of for strong docking calculations such as steel pipes, comprise the steps:
Step 4, docking: will dock steel pipe and carry out relative being symmetrical arranged of port with the heelpiece steel pipe, adjust interval, absolute altitude compensation and perpendicularity between docking steel pipe and heelpiece steel pipe, after adjusting to the right place, adopt construction bolt to link together the location horse plate between two steel pipes again;
Be the steel sleeve of steel handle upside below the docking steel pipe, guarantee that the steel sleeve of steel handle downside is below the heelpiece steel pipe;
Step 6, steel sleeve welding: check the laminating degree between steel sleeve and steel pipe, after meeting the requirements, the steel sleeve point is welded on steel pipe;
Step 7, slice off the steel handle;
The specific practice of step 7 is: with carbon arc air gouging, slice off the steel handle on steel sleeve.
Step 8, soldering breach.According to the welding of one-level full-strength weld, that the breach repair welding is smooth.
Of the present inventionly realize that principle is: for fear of the process of two steel pipes docking, avoid docking steel pipe to steel sleeve crimp or wearing and tearing, thereby cause the later stage welding not up to standard, the present invention utilizes prepack method, utilization is at heelpiece steel pipe gap and the steel handle is set on steel sleeve, make the steel handle can be freely movable in gap regions, thereby it is mobile to make steel sleeve be free to along heelpiece steel pipe axis direction, preferably, steel sleeve sinks to the heelpiece steel duct fully, in the time of can fully avoiding docking, the docking steel pipe collides steel sleeve, therefore, can so that steel sleeve can can't harm enter the docking steel duct, thereby intact formation welding inner liner, when driving the steel handle to make steel sleeve be positioned at heelpiece steel pipe and docking steel duct simultaneously, welding inner liner is in place.Steps such as the clamping position of postmenstruation, welding, cutting of steel handle, soldering breach again, and the welding effect of soldered is higher than soldered quality in the past.
After having welded, the location horse plate on two docking steel pipes is taken down, the polishing crator, and enter the Non-Destructive Testing operation.
The steel handle is positioned at steel sleeve lateral surface center.Be convenient to calculate and observe steel sleeve and whether move into place.
For stress equilibrium prevents breach, breach is U-shaped gathering sill.
The distance of breach bottom to heelpiece steel pipe upper surface will guarantee that the upper surface of heelpiece steel pipe flushes with the upper surface of steel sleeve.
In order to make the soldering fluid can flow ipe, in step 5, drive the steel handle make the upper surface of steel sleeve and lower surface take weld gap as line of symmetry axisymmetricly.
In order to make the soldering fluid can flow ipe, in step 5, the upper surface that drives the steel handle to make steel sleeve is 2mm-7mm apart from the distance of docking steel pipe lower surface, and the lower surface that drives the steel handle to make steel sleeve is 2mm-7mm apart from the distance of heelpiece steel pipe upper surface.
In order to make the soldering fluid can flow ipe, in step 5, drive the steel handle to make steel handle side flush heelpiece steel pipe upper surface.
In step 2, the height of breach guarantee the steel handle arrive the breach bottom before or the steel handle while arriving the breach bottom steel sleeve fully in the inside of heelpiece steel pipe.
The present invention reduces for fear of the docking steel pipe probability that steel sleeve is caused to collision when locating, therefore adopt breach and steel handle to coordinate, make the steel sleeve major part enter the inside of heelpiece steel pipe, steel sleeve can reserved part in heelpiece steel pipe outside, and be reserved in outer part, cause more at least the probability of collision just less.Preferably; the height of breach guarantee the steel handle arrive the breach bottom before or the steel handle while arriving the breach bottom steel sleeve fully in the inside of heelpiece steel pipe; can make like this steel sleeve fully in the inside of heelpiece steel pipe; now when location docking steel pipe; there is the protection of heelpiece steel pipe in the steel sleeve outside; the docking steel pipe can not cause collision to steel sleeve fully, and the probability of collision now is zero.
Preferably, the steel handle is circular columns, and the axis of steel handle is perpendicular to the steel sleeve central axis.
The invention has the advantages that: the positioning of steel sleeve can not expend energetically and the plenty of time, the appearance of weld quality better.
The accompanying drawing explanation
Fig. 1 is the steel sleeve schematic diagram obtained after the pre-manufactured steel liner.
Fig. 2 is the schematic diagram after the steel sleeve position is adjusted.
Fig. 3 is the schematic diagram before the steel sleeve position is adjusted.
Fig. 4 is the schematic diagram after the steel sleeve assembling.
The specific embodiment
As shown in Figures 1 to 4.
A kind of for strong docking calculations such as steel pipes, comprise the steps:
Step 4, docking: will dock steel pipe and carry out relative being symmetrical arranged of port with the heelpiece steel pipe, adjust interval, absolute altitude compensation and perpendicularity between docking steel pipe and heelpiece steel pipe, after adjusting to the right place, adopt construction bolt to link together the location horse plate 4 between two steel pipes again.
Guarantee that the steel sleeve of steel handle 11 upsides is below the docking steel pipe, guarantee that the steel sleeve of steel handle downside is below the heelpiece steel pipe;
Step 6, steel sleeve welding: check the laminating degree between steel sleeve and steel pipe, after meeting the requirements, the steel sleeve point is welded on steel pipe;
Step 7, slice off the steel handle;
The specific practice of step 7 is: with carbon arc air gouging, slice off the steel handle on steel sleeve.
Step 8, soldering breach.According to the welding of one-level full-strength weld, that the breach repair welding is smooth.
Of the present inventionly realize that principle is: for fear of the process of steel two steel pipes docking, avoid steel sleeve crimp or wearing and tearing, thereby cause the later stage welding not up to standard, the present invention utilizes prepack method, utilization is at heelpiece steel pipe gap and steel handle 11 is set on steel sleeve, make the steel handle 11 can be freely movable in gap regions, thereby it is mobile to make steel sleeve be free to along heelpiece steel pipe axis direction, utilize steel sleeve to move freely, make steel sleeve not extend the heelpiece steel pipe as far as possible, therefore, can be so that the docking steel pipe reduces the probability of collision steel sleeve when location as far as possible, can so that steel sleeve can can't harm enter the docking steel duct, thereby intact formation welding inner liner, when driving steel handle 11 to make steel sleeve be positioned at heelpiece steel pipe and docking steel duct simultaneously, welding inner liner is in place.Steps such as the clamping position of postmenstruation, welding, cutting of steel handle, soldering breach again, and the welding effect of soldered is higher than soldered quality in the past.
After having welded, the location horse plate on two docking steel pipes is taken down, the polishing crator, and enter the Non-Destructive Testing operation.
The steel handle is positioned at steel sleeve lateral surface center.Be convenient to calculate and observe steel sleeve and whether move into place.
For stress equilibrium prevents breach, breach is U-shaped gathering sill.
The distance of breach bottom to heelpiece steel pipe upper surface will guarantee that the upper surface of heelpiece steel pipe flushes with the upper surface of steel sleeve.
Preferably, steel handle 11 is circular columns, and the axis of steel handle 11 is perpendicular to the steel sleeve central axis
The difference of the present embodiment and embodiment 1 is: can flow ipe in order to make soldering fluid, in step 5, drive steel handle 11 make the upper surface of steel sleeve and lower surface take weld gap as line of symmetry axisymmetricly.
The difference of the present embodiment and embodiment 1 is: can flow ipe in order to make soldering fluid, in step 5, the upper surface that drives steel handle 11 to make steel sleeve is 2mm-7mm apart from the distance of docking steel pipe 3 lower surfaces, and the lower surface that drives steel handle 11 to make steel sleeve is 2mm-7mm apart from the distance of heelpiece steel pipe 2 upper surfaces.
Embodiment 4
The difference of the present embodiment and embodiment 1 is: can flow ipe in order to make soldering fluid, and in step 5, drive steel handle 11 to make steel handle 11 sides flush heelpiece steel pipe 2 upper surfaces.
The difference of the present embodiment and embodiment 1 is: can flow ipe in order to make soldering fluid, in step 5, the upper surface that drives steel handle 11 to make steel sleeve is 3mm or 4mm apart from the distance of docking steel pipe 3 lower surfaces, and the lower surface that drives steel handle 11 to make steel sleeve is 3mm or 4mm apart from the distance of heelpiece steel pipe 2 upper surfaces.
Embodiment 6
The difference of the present embodiment and embodiment 1 is: can flow ipe in order to make soldering fluid, in step 5, the upper surface that drives steel handle 11 to make steel sleeve is 2mm or 7mm apart from the distance of docking steel pipe 3 lower surfaces, and the lower surface that drives steel handle 11 to make steel sleeve is 2mm or 7mm apart from the distance of heelpiece steel pipe 2 upper surfaces.
This method can be adapted to the pipeline of vertical direction setting, also can be adapted to the pipeline of horizontal direction setting, also can be adapted to the pipeline that oblique direction arranges.
Embodiment 7
The difference of the present embodiment and embodiment 1 is: in step 2, the height of breach guarantee the steel handle arrive the breach bottom before or the steel handle while arriving the breach bottom steel sleeve fully in the inside of heelpiece steel pipe.
The present invention reduces for fear of the docking steel pipe probability that steel sleeve is caused to collision when locating, therefore adopt breach and steel handle to coordinate, make the steel sleeve major part enter the inside of heelpiece steel pipe, steel sleeve can reserved part in heelpiece steel pipe outside, and be reserved in outer part, cause more at least the probability of collision just less.Preferably; the height of breach guarantee the steel handle arrive the breach bottom before or the steel handle while arriving the breach bottom steel sleeve fully in the inside of heelpiece steel pipe; can make like this steel sleeve fully in the inside of heelpiece steel pipe; now when location docking steel pipe; there is the protection of heelpiece steel pipe in the steel sleeve outside; the docking steel pipe can not cause collision to steel sleeve fully, and the probability of collision now is zero.
Because docking steel pipe localizing environment is narrow, the degree of depth outside steel sleeve is reserved in is 30mm, and the probability of docking steel pipe collision steel sleeve is 80%.The degree of depth outside steel sleeve is reserved in is 20mm, and the probability of docking steel pipe collision steel sleeve is 70%.The degree of depth outside steel sleeve is reserved in is 10mm, and the probability of docking steel pipe collision steel sleeve is 60%.The degree of depth outside steel sleeve is reserved in is 7mm, and the probability of docking steel pipe collision steel sleeve is 40%.The degree of depth outside steel sleeve is reserved in is 5mm, and the probability of docking steel pipe collision steel sleeve is 30%.The degree of depth outside steel sleeve is reserved in is 3mm, and the probability of docking steel pipe collision steel sleeve is 5%.The degree of depth outside steel sleeve is reserved in is 0mm, and the probability of docking steel pipe collision steel sleeve is 0%.Just move and adopt steel handle and breach to be coordinated for convenient, guarantee the mobile return of steel sleeve.
As above can realize preferably the present invention.
Claims (10)
1. one kind for the strong docking calculation such as steel pipe, it is characterized in that: comprise the steps:
Step 1, pre-manufactured steel liner: according to pipe diameter, prefabricatedly be circular steel sleeve (1), at steel sleeve lateral surface welding at least 1 steel handle (11);
Step 2, prefabricated heelpiece steel pipe: get the heelpiece steel pipe, offer the breach (5) consistent with steel handle (11) number in the upper surface of heelpiece steel pipe, breach is to eliminate along the axis direction of heelpiece steel pipe the groove formed from the upper surface of heelpiece steel pipe, and the width of breach need to guarantee that the steel handle freely passes through;
Step 3, steel sleeve assembling: prefabricated steel sleeve is placed in the heelpiece steel pipe, guarantees that steel handle (11) inserts in breach one to one;
Step 4, docking: will dock steel pipe and carry out relative being symmetrical arranged of port with the heelpiece steel pipe, adjust interval, absolute altitude compensation and perpendicularity between docking steel pipe and heelpiece steel pipe, after adjusting to the right place, adopt construction bolt to link together the location horse plate (4) between two steel pipes again;
Step 5, steel sleeve position are adjusted: drive steel handle (11) towards docking steel pipe one side shifting, make steel sleeve towards docking steel pipe one side shifting, guarantee that steel sleeve is positioned at heelpiece steel pipe and docking steel duct simultaneously;
Step 6, steel sleeve welding: check the laminating degree between steel sleeve and steel pipe, after meeting the requirements, the steel sleeve point is welded on steel pipe;
Step 7, slice off the steel handle;
Step 8, soldering breach.
2. according to claim 1 a kind of for strong docking calculations such as steel pipes, it is characterized in that: the steel handle is positioned at steel sleeve lateral surface center.
3. according to claim 1 a kind of for strong docking calculations such as steel pipes, it is characterized in that: breach is U-shaped gathering sill.
4. according to claim 1 a kind of for strong docking calculations such as steel pipes, it is characterized in that: the distance of breach bottom to heelpiece steel pipe upper surface will guarantee that the upper surface of heelpiece steel pipe flushes with the upper surface of steel sleeve.
5. according to claim 1 a kind of for the strong docking calculation such as steel pipe, it is characterized in that: in step 5, drive steel handle (11) make the upper surface of steel sleeve and lower surface take weld gap as line of symmetry axisymmetricly.
6. according to claim 1 a kind of for strong docking calculations such as steel pipes, it is characterized in that: in step 5, driving steel handle (11) to make the upper surface of steel sleeve is 2mm-7mm apart from the distance of docking steel pipe (3) lower surface.
7. according to claim 1 a kind of for the strong docking calculation such as steel pipe, it is characterized in that: in step 5, the lower surface that drives steel handle (11) to make steel sleeve is 2mm-7mm apart from the distance of heelpiece steel pipe (2) upper surface.
8. according to claim 1 a kind of for strong docking calculations such as steel pipes, it is characterized in that: in step 5, drive steel handle (11) to make steel handle (11) side flush heelpiece steel pipe (2) upper surface.
9. described a kind of for strong docking calculations such as steel pipes according to any one in claim 1-8, it is characterized in that: steel handle (11) is circular columns, and the axis of steel handle (11) is perpendicular to the steel sleeve central axis.
10. described a kind of for strong docking calculations such as steel pipes according to any one in claim 1-8, it is characterized in that: in step 2, the height of breach guarantee the steel handle arrive the breach bottom before or the steel handle while arriving the breach bottom steel sleeve fully in the inside of heelpiece steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218780A CN103418994A (en) | 2013-07-29 | 2013-07-29 | Method for equal-strength butt joint of steel tubes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218780A CN103418994A (en) | 2013-07-29 | 2013-07-29 | Method for equal-strength butt joint of steel tubes |
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| CN103418994A true CN103418994A (en) | 2013-12-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002071A (en) * | 2014-06-13 | 2014-08-27 | 中国五冶集团有限公司 | Lining ring for butt welding of steel pipes and use method of lining ring |
| CN107335966A (en) * | 2017-09-06 | 2017-11-10 | 中国五冶集团有限公司 | A kind of method that steel sleeve is set in steel pipe |
| CN107470846A (en) * | 2017-09-07 | 2017-12-15 | 中建五局第三建设有限公司 | A kind of device and welding method for facilitating steel-pipe welding |
| CN108856971A (en) * | 2017-05-10 | 2018-11-23 | 江西省水电工程局 | Penstock combines steel sleeve single side butt weld technologies for steel |
| CN112008351A (en) * | 2020-07-10 | 2020-12-01 | 中国航发南方工业有限公司 | Torsion measuring ring assembling method and clamp |
| CN112872697A (en) * | 2019-11-29 | 2021-06-01 | 中冶(上海)钢结构科技有限公司 | Method for sliding installation of liner plate welded to butt joint of circular tube in tube |
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| US3912150A (en) * | 1974-10-04 | 1975-10-14 | Foster Wheeler Energy Corp | Backing rings for welded pipe joints |
| JPS6092077A (en) * | 1983-10-24 | 1985-05-23 | Seo Koatsu Kogyo Kk | Welding method of butted part of pipe |
| JPH11216594A (en) * | 1998-01-27 | 1999-08-10 | Tsunoru Mima | Column backing metal for steel frame construction |
| CN1526505A (en) * | 2003-09-19 | 2004-09-08 | 勇 李 | Steel pipe butt jointing apparatus with inner positioning duct and its application |
| CN101870049A (en) * | 2010-06-13 | 2010-10-27 | 陈会荣 | Adjustable telescopic welding sleeve of steel-structure tube truss and air butt construction method |
| CN202571712U (en) * | 2012-05-05 | 2012-12-05 | 中国十七冶集团有限公司 | Rapid positioning device for pipe butting |
| CN202780252U (en) * | 2012-06-12 | 2013-03-13 | 中建钢构江苏有限公司 | Sliding liner ring connecting structure of welding seam of steel pipes |
| CN103056541A (en) * | 2012-12-12 | 2013-04-24 | 山东杭萧钢构有限公司 | Pipe truss or tubular column butt joint structure and butt joint method |
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2013
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3912150A (en) * | 1974-10-04 | 1975-10-14 | Foster Wheeler Energy Corp | Backing rings for welded pipe joints |
| JPS6092077A (en) * | 1983-10-24 | 1985-05-23 | Seo Koatsu Kogyo Kk | Welding method of butted part of pipe |
| JPH11216594A (en) * | 1998-01-27 | 1999-08-10 | Tsunoru Mima | Column backing metal for steel frame construction |
| CN1526505A (en) * | 2003-09-19 | 2004-09-08 | 勇 李 | Steel pipe butt jointing apparatus with inner positioning duct and its application |
| CN101870049A (en) * | 2010-06-13 | 2010-10-27 | 陈会荣 | Adjustable telescopic welding sleeve of steel-structure tube truss and air butt construction method |
| CN202571712U (en) * | 2012-05-05 | 2012-12-05 | 中国十七冶集团有限公司 | Rapid positioning device for pipe butting |
| CN202780252U (en) * | 2012-06-12 | 2013-03-13 | 中建钢构江苏有限公司 | Sliding liner ring connecting structure of welding seam of steel pipes |
| CN103056541A (en) * | 2012-12-12 | 2013-04-24 | 山东杭萧钢构有限公司 | Pipe truss or tubular column butt joint structure and butt joint method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002071A (en) * | 2014-06-13 | 2014-08-27 | 中国五冶集团有限公司 | Lining ring for butt welding of steel pipes and use method of lining ring |
| CN104002071B (en) * | 2014-06-13 | 2015-11-25 | 中国五冶集团有限公司 | Butt welding of steel tube connects by lining ring and using method thereof |
| CN108856971A (en) * | 2017-05-10 | 2018-11-23 | 江西省水电工程局 | Penstock combines steel sleeve single side butt weld technologies for steel |
| CN107335966A (en) * | 2017-09-06 | 2017-11-10 | 中国五冶集团有限公司 | A kind of method that steel sleeve is set in steel pipe |
| CN107470846A (en) * | 2017-09-07 | 2017-12-15 | 中建五局第三建设有限公司 | A kind of device and welding method for facilitating steel-pipe welding |
| CN112872697A (en) * | 2019-11-29 | 2021-06-01 | 中冶(上海)钢结构科技有限公司 | Method for sliding installation of liner plate welded to butt joint of circular tube in tube |
| CN112008351A (en) * | 2020-07-10 | 2020-12-01 | 中国航发南方工业有限公司 | Torsion measuring ring assembling method and clamp |
| CN112008351B (en) * | 2020-07-10 | 2021-11-19 | 中国航发南方工业有限公司 | Torsion measuring ring assembling method and clamp |
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Application publication date: 20131204 |