CN109654309A - A kind of welding structure and preparation method thereof of circumferential wave metal bellows - Google Patents
A kind of welding structure and preparation method thereof of circumferential wave metal bellows Download PDFInfo
- Publication number
- CN109654309A CN109654309A CN201710946268.8A CN201710946268A CN109654309A CN 109654309 A CN109654309 A CN 109654309A CN 201710946268 A CN201710946268 A CN 201710946268A CN 109654309 A CN109654309 A CN 109654309A
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- CN
- China
- Prior art keywords
- bellows
- weld seam
- seam
- weld
- overlapping
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1017—Joints with sleeve or socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
- F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of welding structure and production method for connecting circumferential wave metal bellows, welded feature is ring week weld seam to be arranged in the side-walls of ripple, and use simple and reliable lap seam welding structure.Its production method is first to form lap seam welding weld seam, then pass through expanding method into ripple required out the multiple pipes for being used to make bellows in end sections overlapping and along ring Zhou Jinhang seam weld, and weld seam is arranged in the side-walls of ripple in forming.Above scheme changes traditional handicraft, and weld seam bears that folding s tress is small, and welding is simple, high-efficient, weldquality is good, good appearance, while can save stainless steel material.
Description
Technical field
The present invention relates to a kind of welding structures and preparation method thereof of circumferential wave metal bellows, belong to wavy metal compensation
Field, the manufacture of the large-caliber thin-walled bellows especially suitable for multiple pipes.
Background technique
Metal bellows pipeline flexible connects, bit shift compensation and cubage compensation field are widely used, larger caliber it is thin
Wall bellows is mostly annular corrugated (the opposed helical ripple) that ripple is parallel to each other, and connection difficulty is larger.Bigbore metal wave
Line pipe generally use stainless steel plate material be welded after pipe shape it is annular corrugated, since stainless steel plate material wide cut is usually at 1.2 meters
Hereinafter, a pipe can be limited at the ripple gone out, when ripple number requires more, generally use and connect more piece metal bellows
Together.The method of connection is usually first to press the side wave of two bellowss to be connected (first wave or the last one wave)
It is flat, then the side wave alignment after flattening is welded together again.This production method has following deficiency: first is that welding efficiency is low,
Second is that weldquality is unreliable, third is that weld seam is also easy to produce cracking by the folding s tress that ripple stretches, fourth is that flattening wave causes ripple
Waste of material.Bellows was quickly grown using nearly 20 years, but ripple connection type is confined to the bad wave crest of stress always and flattens
Welding structure.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of welding structure of circumferential wave metal bellows and its production sides
Method, the welding structure of the circumferential wave metal bellows ensure that the connection of metal bellows is reliable, beautiful, long service life；It should
Bellows-welding can be realized in the side wave that production method does not have to flatten bellows, and welding efficiency is high, weldquality is good, weld seam is held
It is small by folding s tress, while stainless steel material can be saved.
The specific technical solution of the present invention is as follows: 1, a kind of welding structure of circumferential wave metal bellows, including adjacent
Bellows A and bellows B, and the weld seam of connection bellows A and bellows B, bellows A and bellows B have weight on ripple
It is folded, there is weld seam in overlapping, weld seam is the lap seam welding weld seam in ring week, and weld seam is arranged at corrugated sidewalls.
Weld seam is arranged at the overlapped corrugated sidewalls of bellows A and bellows B, while bellows A and bellows B exist
Also there is overlapping at wave crest or trough.
The seam weld is stacked with solder joint for what current impulse was formed, and solder joint fuses contact site, and weld seam appearance is in
Scalelike mark shape, weld seam are not higher than base material.
A kind of production method of annular corrugated metal bellows, comprising the following steps:
1), first the end of adjacent pipe is nested, holding part overlapping；
2) it, is welded in overlapping using seam welder ring week seam weld, multiple pipes is connected；
3) then on molding machine that the pipe expansion connected is annular corrugated using expanding method, and the weld seam of overlapping is set
It sets at annular corrugated corrugated sidewalls.
Annular corrugated wave crest or valley regions is arranged in the weld seam of overlapping.
The weld seam of the seam weld welding is the ovelapping spot weld that current impulse is formed, and appearance is scalelike mark shape, and weld seam is not high
In base material.
Beneficial effects of the present invention: the welding structure of the circumferential wave metal bellows uses the lap seam welding being locally overlapped
Structure, and weld seam is arranged at corrugated sidewalls, stress level suffered by weld seam can be substantially reduced, the service life is improved, mentions simultaneously
High welded seal reliability improves welding efficiency, moreover it is possible to realize that weld seam is hidden, realize that ripple tube exterior is more beautiful.
Weld seam is arranged while corrugated sidewalls, increases the ripple lap of adjacent peaks or trough, can make weld seam stress
Smaller, fatigue life is longer.
Using the production method of circumferential wave metal bellows of the present invention, the side wave without flattening bellows be can be realized
Bellows-welding, welding efficiency is high, weldquality is good, good appearance, weld seam receiving folding s tress are small, and the weld fatigue service life obtains
It improves, while stainless steel material can also be saved.Pipe overlapping seam weld to be welded, easy to operate, reliable in quality is high-efficient,
This method changes be shaped after the traditional handicraft welded.For heavy caliber bellows, connection pipe is in technology controlling and process before shaping
Bellows is connected after being substantially better than forming with quality control aspect.
The weld seam of seam weld welding is the ovelapping spot weld that current impulse is formed, and appearance is scalelike mark shape, and weld seam is not higher than base material,
It can ensure that weld seam fusion is continuous, sealed reliable, and flat appearance is beautiful.
Detailed description of the invention
Fig. 1 is annular corrugated metal bellows pipe connection schematic diagram.
Fig. 2 is schematic diagram after the forming of annular corrugated metal bellows.
Fig. 3 is one weld seam of embodiment partial enlargement at the I at corrugated sidewalls.
Fig. 4 is two weld seam of embodiment partial enlargement at the I of peak regions.
Fig. 5 is three weld seam of embodiment partial enlargement at the I of valley regions.
Fig. 6 is example IV weld seam partial enlargement in corrugated sidewalls region and at I that wave crest has overlapping.
Fig. 7 is example IV weld seam partial enlargement in corrugated sidewalls region and at I that trough has overlapping.
Wherein, 1 is pipe A；2 be pipe B；3 be weld seam；4 be bellows A；5 be bellows B.
Specific embodiment
Embodiment one
A kind of production method of circumferential wave metal bellows, total ripple number according to actual needs determine the pipe for needing to connect
Number, first stainless steel roll bending is unfolded and by pipe perimeter blanking, and is welded into pipe A1 and pipe B2 for formed bellow
Or more pipe.Adjacent pipe is allowed to meet the requirement being tightly sleeved when determining pipe perimeter blank size.Then by two or
More than two pipes are nested in adjacent end head and the tail, and partly overlap and (overlap), such as Fig. 1, overlap lap and meet forming
With welding requirements.Then seam welder (also referred to as seam welder) ring Zhou Jinhang seam weld with disk electrode is used to weld in overlapping
It connects, forms weld seam 3, welding current and speed of welding are adjusted to the solder joint that weldment sufficiently fuses and current impulse is formed and are overlapped 30%
More than, to guarantee that weld seam seals, weld seam can be with ring Zhou Duodao.Multiple pipes are linked together according to the above method, are then used
The expansion on molding machine is required amount of annular corrugated by the pipe connected for expanding method, (illustrates only two as shown in Figure 2
Pipe, can be with multiple at the bellows gone out).Expanding method refers to the side with pressure-actuated mechanical expansion grinding tool expansion ripple
Method, may be implemented single-bellow continuous using expanding method, and can preset crest location.Such as Fig. 3, by pipe when forming
The side-walls (region i.e. between wave crest and trough) of ripple are arranged in the seam weld 3 of overlapping, and weld seam 3 is the overlap joint in ring week
Seam weld, smooth face of weld is in scalelike mark shape, and contact site of the weldment at welding bead sufficiently merge, and face of weld is without filling out
Material is not higher than base material.
Embodiment two
As shown in figure 4, the seam weld 3 of overlapping to be arranged in the peak regions of ripple when forming, remaining and one phase of embodiment
Together.
Embodiment three
As shown in figure 5, the seam weld 3 of overlapping to be arranged in the valley regions of ripple when forming, remaining and one phase of embodiment
Together.
Example IV
It, can also be by increasing the weight when socket of adjacent pipe when weld seam 3 is arranged at corrugated sidewalls referring to one method of embodiment
Folded amount allows lap to form wave crest as shown in Figure 6 in corrugation；Or lap forms trough as shown in fig. 7, in this way
It can be reduced weld seam stress in bellows, remaining structure is the same as example 1.
A kind of welding structure connecting circumferential wave metal bellows can be obtained using one method of embodiment, as shown in figure 3, packet
Include adjacent bellows A4 and bellows B5, and the weld seam 3 of connection bellows A4 and bellows B5.Wherein, bellows A4 and
Bellows B5 has overlapping on ripple, has weld seam in overlapping, weld seam is the lap seam welding weld seam in ring week, and weld seam is arranged in wave
At the corrugated sidewalls of line pipe.Smooth face of weld is in scalelike mark shape, and the contact site of weldment is fused together, face of weld without
Filler is not higher than base material.
Weld seam be arranged at corrugated sidewalls, in bellows the stress of weld seam better than weld seam be arranged at wave crest or
At trough, while it is consistent to be also able to achieve ripple rigidity, and deformation is more evenly.Since bellows can't see weld seam in appearance,
Appearance is more beautiful for bellows.
Metal bellows can be circle perpendicular to the cross section of axis and be also possible to other shapes in above-described embodiment, such as
Track type, rectangle with rounded corners and triangle etc..Increase ripple lap, weld seam can repeat to be arranged at multiple positions, greatly
The big reliability for improving connection and sealing.
Claims (6)
1. a kind of welding structure of circumferential wave metal bellows, including adjacent bellows A and bellows B, and connection ripple
The weld seam of pipe A and bellows B, it is characterised in that: bellows A and bellows B have overlapping on ripple, have weld seam in overlapping,
Weld seam is the lap seam welding weld seam in ring week, and weld seam is arranged at corrugated sidewalls.
2. a kind of welding structure of circumferential wave metal bellows as described in right 1, it is further characterized in that: weld seam is arranged in bellows
At A and bellows B overlapped corrugated sidewalls, while bellows A and bellows B also have overlapping at wave crest or trough.
3. the welding structure of annular corrugated metal bellows as claimed in claim 1 or 2, it is characterised in that: the seam weld
Weld seam is stacked with solder joint for what current impulse was formed, and solder joint fuses contact site, and weld seam appearance is in scalelike mark shape, and weld seam is not higher than
Base material.
4. a kind of production method of annular corrugated metal bellows, it is characterised in that following steps:
1), first the end of adjacent pipe is nested, holding part overlapping；
2) it, is welded in overlapping using seam welder ring week seam weld, multiple pipes is connected；
3) then on molding machine that the pipe expansion connected is annular corrugated using expanding method, and the weld seam of overlapping is set
It sets at annular corrugated corrugated sidewalls.
5. a kind of production method of annular corrugated metal bellows as described in right 4, it is characterised in that: the weld seam of overlapping is arranged
In annular corrugated wave crest or valley regions.
6. the production method of annular corrugated metal bellows as described in claim 4 or 5, it is characterised in that: the seam weld
The weld seam of welding is the ovelapping spot weld that current impulse is formed, and appearance is scalelike mark shape, and weld seam is not higher than base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710946268.8A CN109654309B (en) | 2017-10-12 | 2017-10-12 | Welding structure of annular wave metal corrugated pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710946268.8A CN109654309B (en) | 2017-10-12 | 2017-10-12 | Welding structure of annular wave metal corrugated pipe and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654309A true CN109654309A (en) | 2019-04-19 |
| CN109654309B CN109654309B (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710946268.8A Active CN109654309B (en) | 2017-10-12 | 2017-10-12 | Welding structure of annular wave metal corrugated pipe and manufacturing method thereof |
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| CN (1) | CN109654309B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681487A (en) * | 2019-10-17 | 2021-04-20 | 上海华夏波纹钢研究院 | Novel corrugated steel inspection well structure and construction method |
| CN112903174A (en) * | 2020-12-30 | 2021-06-04 | 南京晨光东螺波纹管有限公司 | Corrugated pipe for nuclear fusion and manufacturing process thereof |
| CN114082802A (en) * | 2021-10-12 | 2022-02-25 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
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| US3942702A (en) * | 1973-03-29 | 1976-03-09 | Boa Ag Luzern | Corrugated tubing |
| JPS566786A (en) * | 1979-06-29 | 1981-01-23 | Mitsubishi Electric Corp | Welding method of corrugated sheet |
| JP2002356811A (en) * | 2001-05-30 | 2002-12-13 | Nkk Corp | Joint structure of corrugated steel plate web girder |
| CN103894798A (en) * | 2014-03-31 | 2014-07-02 | 张家港保税区亚信汽车零部件科技有限公司 | Manufacturing method of precisely-welded pipe |
| CN104279380A (en) * | 2013-07-12 | 2015-01-14 | 宁庆合 | Thin-walled pipe connection method |
| CN104493440A (en) * | 2014-11-28 | 2015-04-08 | 安徽盛运环保（集团）股份有限公司 | Manufacturing process of bellows expansion joint |
-
2017
- 2017-10-12 CN CN201710946268.8A patent/CN109654309B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942702A (en) * | 1973-03-29 | 1976-03-09 | Boa Ag Luzern | Corrugated tubing |
| JPS566786A (en) * | 1979-06-29 | 1981-01-23 | Mitsubishi Electric Corp | Welding method of corrugated sheet |
| JP2002356811A (en) * | 2001-05-30 | 2002-12-13 | Nkk Corp | Joint structure of corrugated steel plate web girder |
| CN104279380A (en) * | 2013-07-12 | 2015-01-14 | 宁庆合 | Thin-walled pipe connection method |
| CN103894798A (en) * | 2014-03-31 | 2014-07-02 | 张家港保税区亚信汽车零部件科技有限公司 | Manufacturing method of precisely-welded pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681487A (en) * | 2019-10-17 | 2021-04-20 | 上海华夏波纹钢研究院 | Novel corrugated steel inspection well structure and construction method |
| CN112903174A (en) * | 2020-12-30 | 2021-06-04 | 南京晨光东螺波纹管有限公司 | Corrugated pipe for nuclear fusion and manufacturing process thereof |
| CN112903174B (en) * | 2020-12-30 | 2024-01-16 | 南京晨光东螺波纹管有限公司 | Corrugated pipe for nuclear fusion and manufacturing process thereof |
| CN114082802A (en) * | 2021-10-12 | 2022-02-25 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
| CN114082802B (en) * | 2021-10-12 | 2024-04-26 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
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| CN109654309B (en) | 2021-04-16 |
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