CN105014234A - Underwater friction stitch welding local dry method small draining device - Google Patents
Underwater friction stitch welding local dry method small draining device Download PDFInfo
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- CN105014234A CN105014234A CN201410172809.2A CN201410172809A CN105014234A CN 105014234 A CN105014234 A CN 105014234A CN 201410172809 A CN201410172809 A CN 201410172809A CN 105014234 A CN105014234 A CN 105014234A
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- draining
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Abstract
The invention discloses an underwater friction stitch welding local dry method small draining device. A whole draining cover is a cylindrical shell, an opening is formed at the lower end of the whole draining cover, and planes are symmetrically milled in the vertical direction. A through hole is formed in the central position of the upper end face of the draining cover, and a sealed material layer is arranged in the through hole; air inlets are symmetrically formed on the left side and the right side of the through hole; observation windows are formed on the planes milled in the vertical direction of the draining cover; and a draining sponge layer is arranged on the lower end face of the draining cover, and connection between waterproof glue and the draining cover is utilized, so that connection airtightness is ensured. The sealing material layer is a solid annular sealing material layer and is in tight contact with a stopper rod; in the high-speed rotating process of the stopper rod, the airtightness can be ensured, and wear resistance is achieved; the problems that the underwater friction stitch welding quality is poor, and air environment needs to be built underwater for welding are solved. The aims of obtaining the better welding joint quality, optimizing the underwater welding working procedure, and expanding the technical parameter range are achieved.
Description
Technical field
The invention belongs to Solid-State Welding technical field, more particularly, relate to a kind of novel friction stitch welding local dry cavity drainage arrangement.
Background technology
Friction stitch welding is a kind of novel solid phase connecting method.Friction stitch welding is the WMThomas having TWI, and the people such as EDNicholas invented in 1992.The basic research that a large amount of energy is correlated with has been dropped in Europe nearly ten years.Preliminary research has all been done to friction stitch welding by domestic aspect Beijing Institute of Petrochemical Technology, University Of Tianjin etc.The cell orifice welding of friction stitch welding is called as Friction Hydro Pillar Processing (FHPP), its principle utilizes consumable characteristic rod (can be referred to as stopper) under certain pressure or pulling force condition, stopper is driven to rotate by drive unit, rotation limit, stopper limit declines, that stopper contacts with consent (treating welding hole), rubs, form plasticized metal, then stopper stall, upset, complete welding.As solder technology and the recovery technique of a solid phase, friction welding (FW) has many advantages, as fast in environmental protection, weldering speed, can weld etc. in adverse circumstances.
Due to the feature of friction stitch welding, it is welded under water and welds under adverse circumstances that there is very large advantage, so the main direction of studying of friction stitch welding is all under water, but specific heat of water holds higher, the appearance of hardened structure can be caused, be unfavorable for the welding of stitching weldering process next stage, so the research of Underwater Welding Local Dry Process just seems particularly important.Also be still in the starting stage to the research of friction stitch welding local dry underwater welding both at home and abroad.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, one friction stitch welding local dry cavity small-sized drainage device is under water provided, poor in order to solve friction stitch welding Underwater Welding welding quality, build the problem of welding under air ambient under water, thus the experimental facilities of design and experiment flow, obtain better quality of weld joint to reach, optimize Underwater Welding operation, expand the object of process parameters range.
Technical purpose of the present invention is achieved by following technical proposals:
One is friction stitch welding local dry cavity small-sized drainage device under water, comprises drainage cover, observation window, draining spongy layer, air admission hole, sealing material layer, wherein:
Whole drainage cover is cylindrical housings, lower ending opening, and in the vertical direction symmetry is milled with plane, to facilitate installation observation window; Through hole is set in center, drainage cover upper surface, and sealing material layer is set in through-holes; Be symmetrical arranged air admission hole in the through hole left and right sides, the convenient tracheae that connects is ventilated, and ensures the air ambient in welding process in drainage cover, reaches seal request.
Observation window is arranged in the plane of institute's milling of drainage cover vertical direction, install lucite in case the drainage effect ensured and be beneficial to outside observation drainage effect.Described draining spongy layer is arranged on the lower surface of drainage cover, utilizes marine glue to be connected with drainage cover, to ensure the air-tightness connected, selects spongy layer one to be gas in order to discharge in drainage cover, and two is a large amount of backflows of prevention of water.Described sealing material layer is solid circular sealing material layer, and close contact between stopper, in the process of stopper High Rotation Speed, can ensure air-tightness, and have wearability, selects ring-shaped graphite as sealing material layer.
In welding process, first install stopper, fix workpiece to be welded in drainage cover central authorities, then above-mentioned drainage arrangement is seated as shown in Figure 1.Adjust welding machine height, first ventilated in drainage cover by air admission hole afterwards, horizontal plane declines, due to the existence of spongy layer, continue to keep gas smoothness and by the backflow of the anti-sealing of water sorption, after the liquid level of water in drainage cover is lower than surface of the work to be welded, in drainage arrangement, just can carry out the welding of local dry cavity.Starting friction stitch welding welding machine, stopper and absorption surface to be welded, welding process starts, and whole process can be observed by transparent observation window.
The technical scheme of this method may be used for friction stitch welding welder equipment and tests various material, weld overlap in welding process to be formed and the observation of welding stability, utilize equipment of the present invention can realize the welding of friction stitch welding welder equipment optional position under water.Needed for the Welding experiment that the present invention is directed to friction stitch welding local dry cavity under water.This experimental facilities is mainly used in the welding of friction stitch welding local dry cavity, can to ensure local dry cavity smooth enforcement and welding process can be observed very intuitively, thus reach the mechanism more profoundly analyzing friction stitch welding, optimize the effect of friction stitch welding technological parameter, have important meaning to the theoretical research aspect of friction stitch welding.
Accompanying drawing explanation
Fig. 1 is the structural representation of drainage arrangement of the present invention, and wherein 1 is drainage cover, and 2 is observation window, and 3 is draining sponge, and 4 is air admission hole, and 5 is sealing material layer, and 6 is stopper, and 7 is workpiece to be welded.
Fig. 2 is the top view of drainage arrangement of the present invention, and wherein 1 is drainage cover, and 2 is observation window, and 4 is air admission hole.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
As shown in figure 1 and 2, the structure of drainage arrangement of the present invention, wherein 1 is drainage cover, and 2 is observation window, and 3 is draining spongy layer, and 4 is air admission hole, and 5 is sealing material layer, and 6 is stopper, and 7 is workpiece to be welded.
Whole drainage cover is cylindrical housings, lower ending opening, and in the vertical direction symmetry is milled with plane, to facilitate installation observation window; Through hole is set in center, drainage cover upper surface, and sealing material layer is set in through-holes; Be symmetrical arranged air admission hole in the through hole left and right sides, the convenient tracheae that connects is ventilated, and ensures the air ambient in welding process in drainage cover, reaches seal request.
Observation window is arranged in the plane of institute's milling of drainage cover vertical direction, install lucite in case the drainage effect ensured and be beneficial to outside observation drainage effect.Described draining spongy layer is arranged on the lower surface of drainage cover, utilizes marine glue to be connected with drainage cover, to ensure the air-tightness connected, selects spongy layer one to be gas in order to discharge in drainage cover, and two is a large amount of backflows of prevention of water.Described sealing material layer is solid circular sealing material layer, and close contact between stopper, in the process of stopper High Rotation Speed, can ensure air-tightness, and have wearability, selects ring-shaped graphite as sealing material layer.
In welding process, first install stopper, fix workpiece to be welded in drainage cover central authorities, then above-mentioned drainage arrangement is seated as shown in Figure 1.Adjust welding machine height, first ventilated in drainage cover by air admission hole afterwards, horizontal plane declines, due to the existence of spongy layer, continue to keep gas smoothness and by the backflow of the anti-sealing of water sorption, after the liquid level of water in drainage cover is lower than surface of the work to be welded, in drainage arrangement, just can carry out the welding of local dry cavity.Starting friction stitch welding welding machine, stopper and absorption surface to be welded, welding process starts, and whole process can be observed by transparent observation window.
Above to invention has been exemplary description; should be noted that; when not departing from core of the present invention, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection scope of the present invention.
Claims (3)
1. a friction stitch welding local dry cavity small-sized drainage device under water, is characterized in that, comprise drainage cover, observation window, draining spongy layer, air admission hole, sealing material layer, wherein:
Whole drainage cover is cylindrical housings, lower ending opening, and in the vertical direction symmetry is milled with plane, to facilitate installation observation window; Through hole is set in center, drainage cover upper surface, and sealing material layer is set in through-holes; Be symmetrical arranged air admission hole in the through hole left and right sides, the convenient tracheae that connects is ventilated, and ensures the air ambient in welding process in drainage cover, reaches seal request; Observation window is arranged in the plane of institute's milling of drainage cover vertical direction, and described draining spongy layer is arranged on the lower surface of drainage cover, utilizes marine glue to be connected with drainage cover, to ensure the air-tightness connected; Described sealing material layer is solid circular sealing material layer, and close contact between stopper, in the process of stopper High Rotation Speed, can ensure air-tightness, and have wearability.
2. one according to claim 1 friction stitch welding local dry cavity small-sized drainage device under water, it is characterized in that, described observation window is lucite, so that the drainage effect ensured and be beneficial to and outside observe drainage effect.
3. one according to claim 1 friction stitch welding local dry cavity small-sized drainage device under water, is characterized in that, described sealing material layer is ring-shaped graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172809.2A CN105014234A (en) | 2014-04-25 | 2014-04-25 | Underwater friction stitch welding local dry method small draining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172809.2A CN105014234A (en) | 2014-04-25 | 2014-04-25 | Underwater friction stitch welding local dry method small draining device |
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| Publication Number | Publication Date |
|---|---|
| CN105014234A true CN105014234A (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410172809.2A Pending CN105014234A (en) | 2014-04-25 | 2014-04-25 | Underwater friction stitch welding local dry method small draining device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119555A (en) * | 2017-03-21 | 2017-09-01 | 中铁（贵州）市政工程有限公司 | Air-tightness steel bridge bearing waterproof construction |
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| CN86206543U (en) * | 1986-11-26 | 1987-11-07 | 陈式亮 | Submarine locally dry welding apparatus |
| US6237835B1 (en) * | 2000-02-29 | 2001-05-29 | The Boeing Company | Method and apparatus for backing up a friction stir weld joint |
| EP1472039B1 (en) * | 2000-05-02 | 2008-04-16 | Neptune Marine Services Limited | Device for isolating a surface for welding |
| CN102039477A (en) * | 2009-10-13 | 2011-05-04 | 北京石油化工学院 | Local dry-type welding small-sized drainage device |
| JP2011110556A (en) * | 2009-11-24 | 2011-06-09 | Toshiba Corp | Underwater welding apparatus and underwater welding method |
| JP2011147964A (en) * | 2010-01-21 | 2011-08-04 | Bab-Hitachi Industrial Co | Underwater welding apparatus |
| CN102179599A (en) * | 2011-04-01 | 2011-09-14 | 清华大学 | Underwater welding local mask with welding line tracking function |
| CN202934234U (en) * | 2012-11-23 | 2013-05-15 | 北京石油化工学院 | Partial dry type underwater friction stitch welding device |
| CN103212780A (en) * | 2013-04-28 | 2013-07-24 | 江苏科技大学 | Partial-draining and semi-dry type underwater friction stir welding set |
| CN103223552A (en) * | 2013-04-28 | 2013-07-31 | 江苏科技大学 | Centrifuging draining-half dry type underwater friction stir welding set |
| CN103433606A (en) * | 2013-08-19 | 2013-12-11 | 天津大学 | Special portable miniature drainage cover for automatic underwater local dry-method welding |
| CN203875477U (en) * | 2014-04-25 | 2014-10-15 | 天津大学 | Local dry-method small-size water discharging device for underwater friction stitch welding |
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2014
- 2014-04-25 CN CN201410172809.2A patent/CN105014234A/en active Pending
Patent Citations (12)
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|---|---|---|---|---|
| CN86206543U (en) * | 1986-11-26 | 1987-11-07 | 陈式亮 | Submarine locally dry welding apparatus |
| US6237835B1 (en) * | 2000-02-29 | 2001-05-29 | The Boeing Company | Method and apparatus for backing up a friction stir weld joint |
| EP1472039B1 (en) * | 2000-05-02 | 2008-04-16 | Neptune Marine Services Limited | Device for isolating a surface for welding |
| CN102039477A (en) * | 2009-10-13 | 2011-05-04 | 北京石油化工学院 | Local dry-type welding small-sized drainage device |
| JP2011110556A (en) * | 2009-11-24 | 2011-06-09 | Toshiba Corp | Underwater welding apparatus and underwater welding method |
| JP2011147964A (en) * | 2010-01-21 | 2011-08-04 | Bab-Hitachi Industrial Co | Underwater welding apparatus |
| CN102179599A (en) * | 2011-04-01 | 2011-09-14 | 清华大学 | Underwater welding local mask with welding line tracking function |
| CN202934234U (en) * | 2012-11-23 | 2013-05-15 | 北京石油化工学院 | Partial dry type underwater friction stitch welding device |
| CN103212780A (en) * | 2013-04-28 | 2013-07-24 | 江苏科技大学 | Partial-draining and semi-dry type underwater friction stir welding set |
| CN103223552A (en) * | 2013-04-28 | 2013-07-31 | 江苏科技大学 | Centrifuging draining-half dry type underwater friction stir welding set |
| CN103433606A (en) * | 2013-08-19 | 2013-12-11 | 天津大学 | Special portable miniature drainage cover for automatic underwater local dry-method welding |
| CN203875477U (en) * | 2014-04-25 | 2014-10-15 | 天津大学 | Local dry-method small-size water discharging device for underwater friction stitch welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119555A (en) * | 2017-03-21 | 2017-09-01 | 中铁（贵州）市政工程有限公司 | Air-tightness steel bridge bearing waterproof construction |
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Application publication date: 20151104 |