CN109158740A - A kind of spiral welded pipe adapting method - Google Patents
A kind of spiral welded pipe adapting method Download PDFInfo
- Publication number
- CN109158740A CN109158740A CN201811187554.1A CN201811187554A CN109158740A CN 109158740 A CN109158740 A CN 109158740A CN 201811187554 A CN201811187554 A CN 201811187554A CN 109158740 A CN109158740 A CN 109158740A
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- CN
- China
- Prior art keywords
- welding
- solder joint
- spiral welded
- welded pipe
- spiral
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- 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.)
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
-
- 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
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
Abstract
The present invention relates to a kind of spiral welded pipe adapting methods, spiral welded pipe first checks the circumferential length and straightness of butt end, welding position when butt welding selects in the angular range of 30 ° of steel pipe vertical centerline two sides, is in welding position always in the region；When butt welding, keep 2 spiral welded pipe end faces of docking parallel, 2~5mm of spacing applies spot welding and obtains the first solder joint, and spot welding length is not less than 10mm, is not more than 20mm；After first solder joint welding that 2 spiral welded pipes are synchronous to positive, backscrolling, roll angle is greater than 90 °；The welding of subsequent solder joint is successively carried out, i.e., welding point is respectively set in the middle position of molded solder joint in front, is evenly distributed on subsequent solder joint between molded solder joint using the principle of diagonal welding；Backing welding, filling weldering and cosmetic welding are carried out after spot welding.The present invention can guarantee form accuracy and welding quality after spiral welded pipe docking, and easy to operate, and adapter tube lumber recovery is high.
Description
Technical field
The present invention relates to spiral welded pipe technical field more particularly to a kind of spiral welded pipe adapting methods.
Background technique
Spiral welded pipe in process of production, due to burning, misalignment is overproof, spiral weld and butt joint be sewed with longer one section because
X-ray images not congruent defect, can all cause the appearance of pup joint；In order to improve the utilization rate of screw thread welded tube, need pup joint
It is docked to meet requirement.During adapter tube, due to spiral welded pipe own dimensions, the deviation of shape, and welding
Stress influence in the process, causes to take over second-rate, and lumber recovery is low.
Summary of the invention
The present invention provides a kind of spiral welded pipe adapting methods, form accuracy and weldering after capable of guaranteeing spiral welded pipe docking
Quality is connect, and easy to operate, adapter tube lumber recovery is high.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of spiral welded pipe adapting method, includes the following steps:
1) for adapter tube spiral welded pipe material and wall thickness be intended to it is identical, adapter tube before first to the burr of end of spirial welded pipe,
Iron scale and greasy dirt are cleared up；
2) circumferential length and straightness of spiral welded pipe butt end, the spiral welded pipe circle of outer diameter < 500mm are checked after clearing up
Difference≤1mm of Zhou Changdu, straightness≤0.05%；The difference of 500mm≤outer diameter < 700mm spiral welded pipe circumferential length≤
2mm, straightness≤0.1%；Difference≤3mm of 700mm≤outer diameter < 900mm spiral welded pipe circumferential length, straightness≤
0.15%；Difference≤4mm of 900mm≤outer diameter < 1200mm spiral welded pipe circumferential length, straightness≤0.2%；
3) meet the spiral welded pipe both ends that adapter tube requires and beat groove respectively, groove depth is according to spiral welded pipe wall thickness, docking
Size is stitched to determine；The size of current of selected butt welding simultaneously, determines, current range also according to thickness of steel pipe and abutment joint size
Value 60A~90A selects high current when wall thickness is big and/or abutment joint size is big, otherwise selects low current；
4) welding position when butt welding selects in the angular range of 30 ° of steel pipe vertical centerline two sides, using rolling spiral shell
The mode of rotation welded tube is in welding position always in the region；
5) when butt welding, keep 2 spiral welded pipe end faces of docking parallel, 2~5mm of spacing applies spot welding and obtains the first solder joint,
Spot welding length is not less than 10mm, is not more than 20mm；2 spiral welded pipes are synchronized to positive, backscrolling after first solder joint welding,
Roll angle is greater than 90 °；
6) so that the second bond pad locations for preparing welding is in welding region, apply spot welding according to the operating method of step 5) and obtain
Second solder joint；Second solder joint and the first solder joint are 180 ° at a distance of angle；Equally spiral welded pipe is synchronized after welding positive, anti-
To rolling；
7) spot welding is applied in the middle position of the first solder joint and the second solder joint side and obtain third solder joint, then in the other side
Between position apply spot welding and obtain the 4th solder joint；
8) successively carrying out the welding of subsequent solder joint, i.e., welding point is respectively set in the middle position of molded solder joint in front,
Subsequent solder joint is evenly distributed between molded solder joint using the principle of diagonal welding；
9) after the completion of the equal welding of each solder joint of spiral welded pipe circumferential direction, backing welding is carried out；Using manual sequential welding, a certain
Striking above the groove of solder joint stops arc heating below the former molten bath of solder joint at this, normal welding is switched to after molten bath is filled up；It applies
There is discovery during weldering carries out manual correction at any time when misalignment phenomenon；
10) determined whether to be filled weldering according to the wall thickness of spiral welded pipe, finally carry out cosmetic welding.
Compared with prior art, the beneficial effects of the present invention are:
The method of the invention can guarantee form accuracy and welding quality after spiral welded pipe docking, and easy to operate,
Adapter tube lumber recovery is high.
Specific embodiment
A kind of spiral welded pipe adapting method of the present invention, includes the following steps:
1) for adapter tube spiral welded pipe material and wall thickness be intended to it is identical, adapter tube before first to the burr of end of spirial welded pipe,
Iron scale and greasy dirt are cleared up；
2) circumferential length and straightness of spiral welded pipe butt end, the spiral welded pipe circle of outer diameter < 500mm are checked after clearing up
Difference≤1mm of Zhou Changdu, straightness≤0.05%；The difference of 500mm≤outer diameter < 700mm spiral welded pipe circumferential length≤
2mm, straightness≤0.1%；Difference≤3mm of 700mm≤outer diameter < 900mm spiral welded pipe circumferential length, straightness≤
0.15%；Difference≤4mm of 900mm≤outer diameter < 1200mm spiral welded pipe circumferential length, straightness≤0.2%；
3) meet the spiral welded pipe both ends that adapter tube requires and beat groove respectively, groove depth is according to spiral welded pipe wall thickness, docking
Size is stitched to determine；The size of current of selected butt welding simultaneously, determines, current range also according to thickness of steel pipe and abutment joint size
Value 60A~90A selects high current when wall thickness is big and/or abutment joint size is big, otherwise selects low current；
4) welding position when butt welding selects in the angular range of 30 ° of steel pipe vertical centerline two sides, using rolling spiral shell
The mode of rotation welded tube is in welding position always in the region；
5) when butt welding, keep 2 spiral welded pipe end faces of docking parallel, 2~5mm of spacing applies spot welding and obtains the first solder joint,
Spot welding length is not less than 10mm, is not more than 20mm；2 spiral welded pipes are synchronized to positive, backscrolling after first solder joint welding,
Roll angle is greater than 90 °；
6) so that the second bond pad locations for preparing welding is in welding region, apply spot welding according to the operating method of step 5) and obtain
Second solder joint；Second solder joint and the first solder joint are 180 ° at a distance of angle；Equally spiral welded pipe is synchronized after welding positive, anti-
To rolling；
7) spot welding is applied in the middle position of the first solder joint and the second solder joint side and obtain third solder joint, then in the other side
Between position apply spot welding and obtain the 4th solder joint；
8) successively carrying out the welding of subsequent solder joint, i.e., welding point is respectively set in the middle position of molded solder joint in front,
Subsequent solder joint is evenly distributed between molded solder joint using the principle of diagonal welding；
9) after the completion of the equal welding of each solder joint of spiral welded pipe circumferential direction, backing welding is carried out；Using manual sequential welding, a certain
Striking above the groove of solder joint stops arc heating below the former molten bath of solder joint at this, normal welding is switched to after molten bath is filled up；It applies
There is discovery during weldering carries out manual correction at any time when misalignment phenomenon；
10) determined whether to be filled weldering according to the wall thickness of spiral welded pipe, finally carry out cosmetic welding.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of spiral welded pipe adapting method, which comprises the steps of:
1) the spiral welded pipe material for taking over and wall thickness are intended to identical, first to the burr of end of spirial welded pipe, oxidation before adapter tube
Iron sheet and greasy dirt are cleared up；
2) circumferential length and straightness of spiral welded pipe butt end, the spiral welded pipe circumference of outer diameter < 500mm are checked after clearing up
Difference≤1mm of degree, straightness≤0.05%；Difference≤2mm of 500mm≤outer diameter < 700mm spiral welded pipe circumferential length,
Straightness≤0.1%；Difference≤3mm of 700mm≤outer diameter < 900mm spiral welded pipe circumferential length, straightness≤0.15%；
Difference≤4mm of 900mm≤outer diameter < 1200mm spiral welded pipe circumferential length, straightness≤0.2%；
3) meet the spiral welded pipe both ends that adapter tube requires and beat groove respectively, groove depth is according to spiral welded pipe wall thickness, abutment joint ruler
Very little determination；The size of current of selected butt welding simultaneously, determines, current range value also according to thickness of steel pipe and abutment joint size
60A~90A selects high current when wall thickness is big and/or abutment joint size is big, otherwise selects low current；
4) welding position when butt welding selects in the angular range of 30 ° of steel pipe vertical centerline two sides, is welded using rolling screw
The mode of pipe is in welding position always in the region；
5) when butt welding, keep 2 spiral welded pipe end faces of docking parallel, 2~5mm of spacing applies spot welding and obtains the first solder joint, spot welding
Length is not less than 10mm, is not more than 20mm；It is after first solder joint welding that 2 spiral welded pipes are synchronous to positive, backscrolling, it rolls
Angle is greater than 90 °；
6) so that the second bond pad locations for preparing welding is in welding region, apply spot welding according to the operating method of step 5) and obtain second
Solder joint；Second solder joint and the first solder joint are 180 ° at a distance of angle；Spiral welded pipe is equally synchronized into positive, reversed rolling after welding
It is dynamic；
7) spot welding is applied in the middle position of the first solder joint and the second solder joint side obtain third solder joint, then the interposition in the other side
It sets and applies spot welding and obtain the 4th solder joint；
8) welding of subsequent solder joint is successively carried out, i.e., welding point is respectively set in the middle position of molded solder joint in front, uses
The principle of diagonal welding is evenly distributed on subsequent solder joint between molded solder joint；
9) after the completion of the equal welding of each solder joint of spiral welded pipe circumferential direction, backing welding is carried out；Using manual sequential welding, in a certain solder joint
Groove above striking, stop arc heating at this below the former molten bath of solder joint, normal welding switched to after molten bath is filled up；Welding
There is discovery in journey carries out manual correction at any time when misalignment phenomenon；
10) determined whether to be filled weldering according to the wall thickness of spiral welded pipe, finally carry out cosmetic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187554.1A CN109158740A (en) | 2018-10-12 | 2018-10-12 | A kind of spiral welded pipe adapting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187554.1A CN109158740A (en) | 2018-10-12 | 2018-10-12 | A kind of spiral welded pipe adapting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109158740A true CN109158740A (en) | 2019-01-08 |
Family
ID=64877940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187554.1A Pending CN109158740A (en) | 2018-10-12 | 2018-10-12 | A kind of spiral welded pipe adapting method |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101774059A (en) * | 2009-12-29 | 2010-07-14 | 广东省工业设备安装公司 | Welding process of 10CrMoAl seawater corrosion resistant steel tube |
| CN102357741A (en) * | 2011-09-07 | 2012-02-22 | 无锡市创新化工设备有限公司 | Girth welding technology for vacuum container |
| CN102500878A (en) * | 2011-10-20 | 2012-06-20 | 渤海造船厂集团有限公司 | Automatic tungsten argon arc welding method for completely penetrated fillet weld of nuclear power main pipeline and branch pipe |
| CN103212913A (en) * | 2013-04-25 | 2013-07-24 | 河北钢铁股份有限公司唐山分公司 | Fitting up and welding method of major-diameter thin-wall stainless steel bellows |
| CN104858555A (en) * | 2015-06-10 | 2015-08-26 | 江苏力沛电力工程技术服务有限公司 | Pressure pipeline welding process |
| CN105081683A (en) * | 2014-05-23 | 2015-11-25 | 天津市管道工程集团有限公司 | Machining technology of straight-seam steel reel pipe |
| CN106735779A (en) * | 2016-12-31 | 2017-05-31 | 中国化学工程第十四建设有限公司 | A kind of Hastelloy tubing welding method |
| CN106877255A (en) * | 2017-03-23 | 2017-06-20 | 江苏恒旭电力科技有限公司 | Gas-insulated transmission line spiral welded pipe |
| CN108500426A (en) * | 2018-03-20 | 2018-09-07 | 中车青岛四方机车车辆股份有限公司 | A kind of butt welding method of thick walled steel tube |
-
2018
- 2018-10-12 CN CN201811187554.1A patent/CN109158740A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101774059A (en) * | 2009-12-29 | 2010-07-14 | 广东省工业设备安装公司 | Welding process of 10CrMoAl seawater corrosion resistant steel tube |
| CN102357741A (en) * | 2011-09-07 | 2012-02-22 | 无锡市创新化工设备有限公司 | Girth welding technology for vacuum container |
| CN102500878A (en) * | 2011-10-20 | 2012-06-20 | 渤海造船厂集团有限公司 | Automatic tungsten argon arc welding method for completely penetrated fillet weld of nuclear power main pipeline and branch pipe |
| CN103212913A (en) * | 2013-04-25 | 2013-07-24 | 河北钢铁股份有限公司唐山分公司 | Fitting up and welding method of major-diameter thin-wall stainless steel bellows |
| CN105081683A (en) * | 2014-05-23 | 2015-11-25 | 天津市管道工程集团有限公司 | Machining technology of straight-seam steel reel pipe |
| CN104858555A (en) * | 2015-06-10 | 2015-08-26 | 江苏力沛电力工程技术服务有限公司 | Pressure pipeline welding process |
| CN106735779A (en) * | 2016-12-31 | 2017-05-31 | 中国化学工程第十四建设有限公司 | A kind of Hastelloy tubing welding method |
| CN106877255A (en) * | 2017-03-23 | 2017-06-20 | 江苏恒旭电力科技有限公司 | Gas-insulated transmission line spiral welded pipe |
| CN108500426A (en) * | 2018-03-20 | 2018-09-07 | 中车青岛四方机车车辆股份有限公司 | A kind of butt welding method of thick walled steel tube |
Non-Patent Citations (1)
| Title |
|---|
| 杨省绪: "一种螺旋焊管对接新方法", 《焊管》 * |
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Application publication date: 20190108 |