CN103521902A - Weld joint force applying device and method using same for improving form and performance of weld joint - Google Patents
Weld joint force applying device and method using same for improving form and performance of weld joint Download PDFInfo
- Publication number
- CN103521902A CN103521902A CN201310459900.8A CN201310459900A CN103521902A CN 103521902 A CN103521902 A CN 103521902A CN 201310459900 A CN201310459900 A CN 201310459900A CN 103521902 A CN103521902 A CN 103521902A
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- Prior art keywords
- force
- weld joint
- weld seam
- application
- block
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 9
- 241000599985 Beijerinckia mobilis Species 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 12
- 238000005242 forging Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
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
- B23K9/32—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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a weld joint force applying device and a method using the weld joint force applying device for improving the form and performance of a weld joint, and the weld joint force applying device is applied to the field of welded pipe machining. In the process of submerged-arc welding, a force applying block in the weld joint force applying device applies force on the weld joint which is still in a liquid state or semi-solid state stage, so that plastic deformation happens on the liquid state or semi-solid state weld joint according to the surface shape of the force applying block to generate a liquid forging effect, the interior of the weld joint after forging and pressing is even and compact, defects possibly existing in the weld joint are eliminated, impacting energy of a weld joint center and a heat effect area is improved, the form of the weld joint can be controlled, and weld joint polishing amount is reduced. The weld joint force applying device and the method well solve the problems that the weld joint form of a submerged-arc welded pipe is difficult to control, and critical defects may happen on the weld joint and can be widely applied to a submerged-arc welded pipe production line.
Description
Technical field
The present invention, for welded tube manufacture field, particularly relates to a kind of weld seam force application apparatus and utilizes this device to improve the method for weld seam form and performance.
Background technology
Two critical processes of submerged-arc welded (SAW) pipe are moulding and welding, and there are material impact in serviceability and the life-span of the quality Welded Pipe of submerged arc welding.
The welding process of submerged-arc welding is subject to various factors, sometimes inevitably produce open defect and the internal flaw of welding, common open defect face of weld owes smooth, weld reinforcement is too high, molten wide narrow the differing of weld seam, undercut etc., and internal flaw has slag inclusion, pore, crackle etc., particularly heavy wall submerged-arc welded (SAW) pipe.User comparatively pays close attention to weld seam form and the Weld Performance of submerged-arc welded (SAW) pipe, particularly needs to carry out antiseptic welded tube, usually need to expend a large amount of time and the weld grinding finishing of labour cost to submerged-arc welded (SAW) pipe, and polishing working condition is also very severe.
Common method is by adjusting welding condition at present, adjust welding condition butt welded seam moulding and performance and have remarkable impact, but be often difficult to select suitable welding condition, between the technological parameters such as welding current, weldingvoltage, speed of welding and weld seam form, be nonlinearity relation, be difficult to obtain comparatively ideal weld seam form by adjusting welding condition.
And for improving Weld Performance, the defect that elimination may exist, also do not have at present a kind of method be used for eliminating weld seam may defect.
Summary of the invention
For addressing the above problem, the invention provides a kind of elimination weld defect, improve the weld seam force application apparatus of Weld Performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of weld seam force application apparatus, comprise support arm and the force-application block that is positioned at support arm below, and support arm is provided with the force application mechanism of pressing force-application block downwards.
Be further used as the improvement of technical solution of the present invention, force application mechanism comprises the support bar that stretched out by support arm and the brake block hinged with the lower end of support bar downwards, the downside of brake block arranges force-application block in the place ahead of support bar, and brake block is provided with and drives brake block around the pin joint with support bar, to rotate and press the force-applying piece of force-application block downwards.
Be further used as the improvement of technical solution of the present invention, force-applying piece is for being connected to the hydraulic cylinder of support arm or support bar by the upper end of brake block.
Be further used as the improvement of technical solution of the present invention, force-application block is rolling wheel.
The present invention also provides a kind of method of utilizing said apparatus to improve weld seam form and performance, comprises the following steps:
A. according to the product requirement of submerged-arc welded (SAW) pipe, select suitable welding parameter;
B. mobile welding gun carries out submerged-arc welded (SAW) pipe welding, and uses the force-application block of weld seam force application apparatus to pressing the application of force in liquid or semi-solid weld seam;
C. liquid or semi-solid weld seam at the forming under the pressure of force-application block, solidify, obtain desirable weld seam form.
Be further used as the improvement of technical solution of the present invention, be welded as submerged-arc welding.
Beneficial effect of the present invention: in submerged arc welding process, force-application block in weld seam force application apparatus is to still exerting pressure in liquid state or the weld seam in semisolid stage, make liquid state or semisolid weld seam produce plastic deformation by the surface configuration of force-application block, produce liquid forging effect, the inner even compact of weld seam after forging and stamping, eliminate the defect that weld seam may exist, improve the ballistic work of weld seam center and heat affected area, and can control the form of weld seam, reduce weld grinding amount, the fine weld seam form that has solved submerged-arc welded (SAW) pipe of the present invention is difficult to control, may there is the problems such as critical defect in weld seam.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is weld seam force application apparatus structural representation of the present invention;
Fig. 2 is that the present invention uses view.
The specific embodiment
With reference to Fig. 1, Fig. 2, the invention provides a kind of weld seam force application apparatus, comprise support arm 1 and the force-application block 2 that is positioned at support arm 1 below, support arm 1 is provided with the force application mechanism 3 of pressing force-application block 2 downwards.
As the preferred embodiment of the invention, force-application block 2 is preferably rolling wheel (force-application block 2 also can adopt briquetting form certainly), at submerged-arc welded (SAW) pipe 6, carry out in the welding process of interior outside weld, rolling wheel in weld seam force application apparatus is to still exerting pressure in liquid state or the weld seam in semisolid stage, make liquid state or semisolid weld seam produce plastic deformation by the surface configuration of rolling wheel, produce liquid forging effect, the inner even compact of weld seam after forging and stamping, eliminate the defect that weld seam may exist, improve the ballistic work of weld seam center and heat affected area, and can control the form of weld seam, reduce weld grinding amount, the fine weld seam form that has solved submerged-arc welded (SAW) pipe of the present invention is difficult to control, may there is the problems such as critical defect in weld seam.
As the preferred embodiment of the present invention, force application mechanism 3 comprises the support bar 31 that stretched out by support arm 1 and the brake block 32 hinged with the lower end of support bar 31 downwards, the downside of brake block 32 arranges force-application block 2 in the place ahead of support bar 31, and brake block 32 is provided with and drives brake block 32 around the pin joint with support bar 31, to rotate and press the force-applying piece of force-application block 2 downwards.
As the preferred embodiment of the present invention, force-applying piece is for being connected to the hydraulic cylinder 4 of support arm 1 or support bar 31 by the upper end of brake block 32.
The operation principle of the present embodiment is: brake block 32 is a gore, hydraulic cylinder 4, rolling wheel and be positioned at three angle points of brake block 32 with the pin joint of support bar 31, and hydraulic cylinder 4 is obliquely installed.When needs by rolling wheel to when liquid or semi-solid weld seam roll the application of force, rolling wheel is placed in to weld seam top, hydraulic cylinder 4 extends, and drives brake block 32 around rotating counterclockwise with the pin joint of support bar 31, so makes rolling wheel move downward compacting weld seam.
Certainly, hydraulic cylinder 4 is the preferred embodiments of the present invention just, can not, as restriction of the present invention, such as with the pin joint place of support bar 31, torsionspring being set at brake block 32, or hydraulic cylinder 4 be replaced with by motor-driven threaded screw rod.
The present invention also provides a kind of method of utilizing said apparatus to improve weld seam form and performance, comprises the following steps:
A. according to the product requirement of submerged-arc welded (SAW) pipe 6, select suitable welding parameter, weld seam force application apparatus is adjusted to from the suitable position of welding gun 5, adjust the application of force size of weld seam force application apparatus to submerged-arc welded (SAW) pipe 6 weld seams;
B. after the submerged-arc welding starting the arc, weld seam force application apparatus and welding gun 5 molten baths are in the same center line, and be positioned at after welding wire, mobile welding gun 5 carries out submerged-arc welded (SAW) pipe 6 welding, and uses 2 pairs of the force-application blocks of weld seam force application apparatus to press the application of force in liquid or semi-solid weld seam;
C. liquid or semi-solid weld seam at the forming under the pressure of force-application block 2, solidify, obtain desirable weld seam form.Liquid weld seam will produce plastic deformation according to the shape of weld seam force application apparatus force-application block 2, after forging and stamping, the inner even compact of weld seam, eliminates the defect that weld seam may exist, and improves the ballistic work of weld seam center and heat affected area, and can control the form of weld seam, reduce weld grinding amount.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (6)
1. a weld seam force application apparatus, is characterized in that: comprise support arm and the force-application block that is positioned at described support arm below, described support arm is provided with the force application mechanism of pressing described force-application block downwards.
2. weld seam force application apparatus according to claim 1, it is characterized in that: described force application mechanism comprises the support bar that stretched out by described support arm and the brake block hinged with the lower end of described support bar downwards, the downside of described brake block arranges force-application block in the place ahead of support bar, and described brake block is provided with and drives brake block around the pin joint with support bar, to rotate and press the force-applying piece of described force-application block downwards.
3. weld seam force application apparatus according to claim 2, is characterized in that: the serve as reasons upper end of described brake block of described force-applying piece is connected to the hydraulic cylinder of support arm or support bar.
4. weld seam force application apparatus according to claim 2, is characterized in that: described force-application block is rolling wheel.
5. utilize weld seam force application apparatus described in claim 1～4 any one to improve a method for weld seam form and performance, it is characterized in that comprising the following steps:
A. according to the product requirement of submerged-arc welded (SAW) pipe, select suitable welding parameter;
B. mobile welding gun carries out submerged-arc welded (SAW) pipe welding, and uses the force-application block of described weld seam force application apparatus to pressing the application of force in liquid or semi-solid weld seam;
C. liquid or semi-solid weld seam at the forming under the pressure of force-application block, solidify, obtain desirable weld seam form.
6. the method for improving weld seam form and performance according to claim 5, is characterized in that: described in be welded as submerged-arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459900.8A CN103521902B (en) | 2013-09-30 | 2013-09-30 | Weld seam force application apparatus and utilize this device to improve the method for weld seam form and performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459900.8A CN103521902B (en) | 2013-09-30 | 2013-09-30 | Weld seam force application apparatus and utilize this device to improve the method for weld seam form and performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521902A true CN103521902A (en) | 2014-01-22 |
| CN103521902B CN103521902B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310459900.8A Active CN103521902B (en) | 2013-09-30 | 2013-09-30 | Weld seam force application apparatus and utilize this device to improve the method for weld seam form and performance |
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| Country | Link |
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| CN (1) | CN103521902B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002025A (en) * | 2014-05-22 | 2014-08-27 | 华侨大学 | Aluminum alloy thin plate welding method and aluminum alloy thin plate welding device |
| CN110125522A (en) * | 2019-04-25 | 2019-08-16 | 贵州大学 | A kind of nearly alpha titanium alloy solid State Welding seam organization isometry processing method |
| CN114654057A (en) * | 2022-05-24 | 2022-06-24 | 辽宁创德机械设备有限公司 | Submerged arc automatic welding equipment and welding process based on steel structural member production |
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| CN2863343Y (en) * | 2006-01-19 | 2007-01-31 | 江苏省徐州锻压机床厂 | Plate wheel rim roll seam-welding machine |
| US20080105667A1 (en) * | 2004-12-10 | 2008-05-08 | Hironari Mikata | Weld Fairing Apparatus And Welding Method Using The Same |
| CN201102131Y (en) * | 2007-11-14 | 2008-08-20 | 攀枝花新钢钒股份有限公司 | Narrow lap welder roller compaction wheel |
| CN101890603A (en) * | 2010-08-12 | 2010-11-24 | 哈尔滨工业大学 | Device for trimming weld with trailing impact rolling of high-strength low-matching equivalent-load welding joint |
| CN102689123A (en) * | 2012-06-14 | 2012-09-26 | 哈尔滨工业大学 | Rolling head and method for realizing re-nanocrystallization welding by adopting same |
| CN202655772U (en) * | 2012-05-18 | 2013-01-09 | 沈阳飞机工业（集团）有限公司 | Automatic argon welding device |
| CN203541827U (en) * | 2013-09-30 | 2014-04-16 | 番禺珠江钢管有限公司 | Weld joint force-applying device |
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2013
- 2013-09-30 CN CN201310459900.8A patent/CN103521902B/en active Active
Patent Citations (7)
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| US20080105667A1 (en) * | 2004-12-10 | 2008-05-08 | Hironari Mikata | Weld Fairing Apparatus And Welding Method Using The Same |
| CN2863343Y (en) * | 2006-01-19 | 2007-01-31 | 江苏省徐州锻压机床厂 | Plate wheel rim roll seam-welding machine |
| CN201102131Y (en) * | 2007-11-14 | 2008-08-20 | 攀枝花新钢钒股份有限公司 | Narrow lap welder roller compaction wheel |
| CN101890603A (en) * | 2010-08-12 | 2010-11-24 | 哈尔滨工业大学 | Device for trimming weld with trailing impact rolling of high-strength low-matching equivalent-load welding joint |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002025A (en) * | 2014-05-22 | 2014-08-27 | 华侨大学 | Aluminum alloy thin plate welding method and aluminum alloy thin plate welding device |
| CN110125522A (en) * | 2019-04-25 | 2019-08-16 | 贵州大学 | A kind of nearly alpha titanium alloy solid State Welding seam organization isometry processing method |
| CN110125522B (en) * | 2019-04-25 | 2021-04-06 | 贵州大学 | Equiaxial treatment method for near-alpha-phase titanium alloy solid-state welding seam structure |
| CN114654057A (en) * | 2022-05-24 | 2022-06-24 | 辽宁创德机械设备有限公司 | Submerged arc automatic welding equipment and welding process based on steel structural member production |
| CN114654057B (en) * | 2022-05-24 | 2022-08-02 | 辽宁创德机械设备有限公司 | Submerged arc automatic welding equipment and welding process based on steel structural member production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103521902B (en) | 2015-09-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170704 Address after: 1 No. 519050 Guangdong city of Zhuhai province equipment manufacturing district Gaolan Port Economic Zone South Road Patentee after: PANYU CHU KONG STEEL PIPE (ZHUHAI) CO.,LTD. Address before: Qinghe Road Guangzhou city Guangdong province 511450 Panyu District Shiji Town Patentee before: PANYU CHU KONG STEEL PIPE Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Weld joint force applying device and method using same for improving form and performance of weld joint Effective date of registration: 20190920 Granted publication date: 20150916 Pledgee: Zhuhai Huafa Business and Trade Holding Co.,Ltd. Pledgor: PANYU CHU KONG STEEL PIPE (ZHUHAI) CO.,LTD. Registration number: Y2019980000179 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200903 Granted publication date: 20150916 Pledgee: Zhuhai Huafa Business and Trade Holding Co.,Ltd. Pledgor: PANYU CHU KONG STEEL PIPE (ZHUHAI) Co.,Ltd. Registration number: Y2019980000179 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Welding force application device and method of improving weld shape and performance by using the device Effective date of registration: 20200911 Granted publication date: 20150916 Pledgee: Zhuhai Huafa Business and Trade Holding Co.,Ltd. Pledgor: PANYU CHU KONG STEEL PIPE (ZHUHAI) Co.,Ltd. Registration number: Y2020980005957 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221031 Granted publication date: 20150916 Pledgee: Zhuhai Huafa Business and Trade Holding Co.,Ltd. Pledgor: PANYU CHU KONG STEEL PIPE (ZHUHAI) CO.,LTD. Registration number: Y2020980005957 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |