CN203541827U - Weld joint force-applying device - Google Patents
Weld joint force-applying device Download PDFInfo
- Publication number
- CN203541827U CN203541827U CN201320613824.7U CN201320613824U CN203541827U CN 203541827 U CN203541827 U CN 203541827U CN 201320613824 U CN201320613824 U CN 201320613824U CN 203541827 U CN203541827 U CN 203541827U
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- Prior art keywords
- force
- weld joint
- block
- support arm
- weld seam
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- Withdrawn - After Issue
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Abstract
The utility model discloses a weld joint force-applying device applied to the field of processing of a welding tube. The weld joint force-applying device comprises a support arm and a force applying block arranged below the support arm, wherein a force applying mechanism for pressing the force applying block downwards is arranged on the support arm; the force applying block in the weld joint applying device applies pressure on a weld joint in a liquid or semi-solid state stage in a submerged-arc welding process, so that the liquid or semi-solid state weld joint plastically deforms according to the surface shape of the force applying block, and generates a liquid die forging effect, the internal part of the weld joint is uniform and compact after being forged and pressed, the deflects which may be exist in the weld joint are removed, the impact power of the center of the weld joint center and a thermal effect zone is improved, the shape of the weld joint can be controlled, and the grinding amount of the weld joint is reduced. By adopting the weld joint force-applying device, the problems that the shape of the weld joint of a submerged-arc welded pipe is difficultly controlled, and the weld joint may generate critical defects and the like are well solved, and the weld joint force-applying device can be widely applied to a submerged-arc welded pipe production line.
Description
Technical field
The utility model, for welded tube manufacture field, particularly relates to a kind of weld seam force application apparatus.
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.
Utility model content
For addressing the above problem, the utility model provides a kind of weld defect of eliminating, and improves the weld seam force application apparatus of Weld Performance.
The utility model solves the technical scheme that its technical problem adopts: a kind of weld seam force application apparatus, and comprise support arm and be positioned at the force-application block of support arm below, support arm is provided with the force application mechanism of pressing force-application block downwards.
Be further used as the improvement of technical solutions of the utility model, 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 front of support bar, and brake block is provided with and drives brake block around rotating with the pin joint of support bar the force-applying piece of also pressing force-application block downwards.
Be further used as the improvement of technical solutions of the utility model, force-applying piece is the hydraulic cylinder that is connected to support arm or support bar by the upper end of force-application block.
Be further used as the improvement of technical solutions of the utility model, force-application block is rolling wheel.
The beneficial effects of the utility model: 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 utility model 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 utility model is described in further detail:
Fig. 1 is the utility model weld seam force application apparatus structural representation;
Fig. 2 is that the utility model is used view.
The specific embodiment
With reference to Fig. 1, Fig. 2, the utility model provides a kind of weld seam force application apparatus, comprises support arm 1 and the force-application block 2 that is positioned at support arm 1 below, and support arm 1 is provided with the force application mechanism 3 of pressing force-application block 2 downwards.
As the utility model preferred embodiment, 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 utility model is difficult to control, may there is the problems such as critical defect in weld seam.
As the utility model preferred embodiment, 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 front of support bar 31, and brake block 32 is provided with and drives brake block 32 around rotating with the pin joint of support bar 31 force-applying piece of also pressing force-application block 2 downwards.
As the utility model preferred embodiment, force-applying piece is the hydraulic cylinder 4 that is connected to support arm 1 or support bar 31 by the upper end of force-application 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 preferred embodiment of the present utility model, can not serve as restriction of the present utility model, such as with the pin joint place of support bar 31, torsionspring being set at brake block 32, or hydraulic cylinder 4 is replaced with by motor-driven threaded screw rod.
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 the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (4)
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 front of support bar, and described brake block is provided with and drives brake block around rotating with the pin joint of support bar the force-applying piece of also pressing 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 force-application 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613824.7U CN203541827U (en) | 2013-09-30 | 2013-09-30 | Weld joint force-applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613824.7U CN203541827U (en) | 2013-09-30 | 2013-09-30 | Weld joint force-applying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541827U true CN203541827U (en) | 2014-04-16 |
Family
ID=50459996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320613824.7U Withdrawn - After Issue CN203541827U (en) | 2013-09-30 | 2013-09-30 | Weld joint force-applying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521902A (en) * | 2013-09-30 | 2014-01-22 | 番禺珠江钢管有限公司 | Weld joint force applying device and method using same for improving form and performance of weld joint |
-
2013
- 2013-09-30 CN CN201320613824.7U patent/CN203541827U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521902A (en) * | 2013-09-30 | 2014-01-22 | 番禺珠江钢管有限公司 | Weld joint force applying device and method using same for improving form and performance of weld joint |
| CN103521902B (en) * | 2013-09-30 | 2015-09-16 | 番禺珠江钢管有限公司 | Weld seam force application apparatus and utilize this device to improve the method for weld seam form and performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |