CN107962268B - A kind of assembly method before light wall pipe part soldering - Google Patents
A kind of assembly method before light wall pipe part soldering Download PDFInfo
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- CN107962268B CN107962268B CN201711144827.XA CN201711144827A CN107962268B CN 107962268 B CN107962268 B CN 107962268B CN 201711144827 A CN201711144827 A CN 201711144827A CN 107962268 B CN107962268 B CN 107962268B
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- nozzle
- pipe
- welding
- oil circuit
- interface
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Classifications
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- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses the assembly methods before a kind of soldering of light wall pipe part, including being assembled before working connection pipe (3) and auxiliary oil circuit pipe (4) and the welding of nozzle (1) interface weld seam (5) position, using the welding wire with nozzle (1) same material on nozzle (1) butt junction location solder joint (2), after working connection pipe (3) and the assembly of auxiliary oil circuit pipe (4) and nozzle (1) interface, fusing tack weld (2) makes working connection pipe (3) and auxiliary oil circuit pipe (4) be connected with nozzle (1).Execute-in-place of the present invention is convenient, not injuring part ontology, position while welding appearance looks elegant after welding, facilitates the addition of solder and the size Control of part before soldering, eliminates the presence of operating process human factor, key position size is easy to control.
Description
Technical field
The invention belongs to soldering tech fields, and in particular to the method for welding positioning is carried out before a kind of soldering of light wall pipe part.
Background technique
As shown in Figure 1, fuel manifold be by nozzle 1 (in Fig. 1 the face m-m be nozzle 1 the plane of symmetry) and oil pipe (main oil pipe road
3 and secondary oil pipe line 4) be welded by vacuum brazing, the welding quality of fuel manifold require it is very tight, it is especially total to fuel oil
Size Control at pipe nozzle requires within 0.1mm.Fuel manifold is welded by 12 nozzles and 22 oil pipes, part
Shape is fine, and design requirement dimensional accuracy is high, has position degree and the control of nozzle plane degree equidimension to require after part welding.Due to
The particularity of technique, part at high temperature size it is difficult to ensure that, this is an extremely difficult problem for vacuum brazing.
Structural analysis is carried out for fuel manifold, which is by the nozzle with gas hood, and major and minor oil-way pipe passes through true
Sky soldering is composed, and the outer diameter of part is < 250mm, and component assembly is difficult, and due to weld seam position after component assembly
It is equipped with fit clearance, cannot be fixedly secured after component assembly and solder can not be added.
Current treating method is: the end face of nozzle is fixed with fixture and carries out auxiliary compression by bolt, screw rod, and will
Major-minor oil circuit is tightly attached to chucking surface, cannot be in one week addition solder of position while welding, if full-filling half after such part is fixed
When taking out from fixture after solder by part and adding the other half solder, part ruler not can guarantee since part is not fixed
Very little, addition solder is difficult, and works repeatedly, influences working efficiency.
By the way of carrying out argon arc welding positioning to part, due to the thin only 1.2mm's of part nozzle weld position wall
Wall thickness, routinely in the position carry out argon arc welding positioning when, due to part wall is thin and injuring part ontology, spot welding position after welding
Occur chips defect and appearance is unqualified.
To sum up, it is necessary to which the assembly method for designing a kind of soldering carries out size Control before part welds, and can facilitate
The addition of solder and the appearance modification of welding position before part welds, and meet technique requirement after can guarantee part welding.
Summary of the invention
The technical problem to be solved by the present invention is proposing the assembly method before a kind of soldering of light wall pipe part, zero can be facilitated
Assembly and solder addition before part welding, and can guarantee that the quality of the part after welding meets technique requirement.
Technical scheme is as follows:
Assembly method before a kind of soldering of light wall pipe part, including working connection pipe and auxiliary oil circuit pipe and nozzle interface position while welding
Welding before assemble, using the welding wire with nozzle same material on nozzle butt junction location solder joint, to working connection pipe and auxiliary oil circuit
For pipe with after nozzle interface assembly, fusing tack weld makes working connection pipe and auxiliary oil circuit pipe be connected with nozzle.Here docking is
Nozzle surface will be connected to after the fusing of welding wire one end by referring to.
The tack weld diameter is Φ 1mm~Φ 1.5mm, and a height of 1.5mm~2mm, the shape of tack weld is cylinder
Shape or truncated cone-shaped.
The tack weld is located in nozzle interface weld seam end face outside, and the central axis of tack weld is located at weld seam institute
Planar and with the central axis of nozzle interface inner cavity intersect.
The tack weld is symmetrical about the plane of symmetry of nozzle.
The present invention is carried out of the same race by the welding position analysis to this thin-walled parts of nozzle interface in part thin-walled position
The welding wire of material docks, and is formed and reinforces solder joint, i.e., a welding structure is increased at the positioning welding of script, and (structure uses
With the welding wire of nozzle weld material of the same race) it is used as tack weld, it also is understood as having thickened place to be welded (tack welding position).
After component assembly to be welded, high temperature melting only is carried out to increased tack weld, so that nozzle and working connection pipe, auxiliary oil circuit
Pipe is connected and fixed, and not only can guarantee do not damage light wall pipe part noumenon (only melting increased tack weld) in this way, but also can guarantee part
Connection (flowing that is in a liquid state after the fusing of increased tack weld is covered on nozzle interface and oil pipe surface, connects to connect nozzle
Mouth and oil pipe), facilitate the operation of subsequent soldering processes and guarantees welding quality.
Compared with prior art, execute-in-place of the present invention is convenient, not injuring part ontology, position while welding appearance beauty after welding
It sees, facilitates the addition of solder and the size Control of part before soldering, eliminate the presence of operating process human factor, key position ruler
Very little to be easy to control, the production verification the verifying results by welding and fuel manifold to sample coupon are good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fuel manifold component；
Fig. 2 is the nozzle arrangements schematic diagram (part) before not increasing tack weld；
Fig. 3 is the nozzle arrangements schematic diagram (part) increased after tack weld；
Wherein, 1 nozzle, 2 tack welds, 3 working connection pipes, 4 auxiliary oil circuit pipes, 5 weld seams.
Specific embodiment
Technical solution of the present invention is further described with reference to the accompanying drawing, but claimed range is not limited to institute
It states.
As shown in Figure 1, needing for working connection pipe 3 and auxiliary oil circuit pipe 4 and 1 interface of nozzle to be brazed, (1 interface of nozzle is Fig. 2
With circular cross-section lumen shown in Fig. 3, working connection pipe 3 and auxiliary oil circuit pipe 4 respectively correspond to an interface lumen).
As shown in figure 3, spraying 1 mouth position design feature according to part, sprayed using the argon arc welding wire with 1 same material of nozzle
Butt junction location solder joint 2 on mouth 1, tack weld 2 are in truncated cone-shaped, and basal diameter (compared with large end face diameter) is Φ 1.2mm, a height of
1.7mm, tack weld 2 share 4 (1 corresponding at every weld seam 5), are respectively positioned in 1 interface weld seam of nozzle, 5 end face outside, and
The central axis of tack weld 2 be located at weld seam 5 planar and with the central axis of 1 interface inner cavity of nozzle intersect.Positioning
Solder joint 2 is symmetrical about the plane of symmetry m-m of nozzle 1.After working connection pipe 3 and the assembly of auxiliary oil circuit pipe 4 and 1 interface of nozzle, melt
Changing tack weld 2 makes working connection pipe 3 and auxiliary oil circuit pipe 4 be connected with nozzle 1.
Claims (4)
1. the assembly method before a kind of light wall pipe part soldering, including working connection pipe (3) and auxiliary oil circuit pipe (4) and nozzle (1) interface
It is assembled before the welding of weld seam (5) position, it is characterised in that: use and docked on nozzle (1) with the welding wire of nozzle (1) same material
Tack weld (2), after working connection pipe (3) and the assembly of auxiliary oil circuit pipe (4) and nozzle (1) interface, fusing tack weld (2) makes
Working connection pipe (3) and auxiliary oil circuit pipe (4) are connected with nozzle (1).
2. the assembly method before a kind of light wall pipe part soldering according to claim 1, it is characterised in that: the tack weld
(2) diameter is Φ 1mm~Φ 1.5mm, a height of 1.5mm~2mm.
3. the assembly method before a kind of light wall pipe part soldering according to claim 1, it is characterised in that: the tack weld
(2) it is located in nozzle (1) interface weld seam (5) end face outside, and the central axis of tack weld (2) is located at weld seam (5) place and puts down
Intersect in face and with the central axis of nozzle (1) interface inner cavity.
4. the assembly method before a kind of light wall pipe part soldering according to claim 1, it is characterised in that: the tack weld
(2) plane of symmetry about nozzle (1) is symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144827.XA CN107962268B (en) | 2017-11-17 | 2017-11-17 | A kind of assembly method before light wall pipe part soldering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144827.XA CN107962268B (en) | 2017-11-17 | 2017-11-17 | A kind of assembly method before light wall pipe part soldering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107962268A CN107962268A (en) | 2018-04-27 |
| CN107962268B true CN107962268B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144827.XA Active CN107962268B (en) | 2017-11-17 | 2017-11-17 | A kind of assembly method before light wall pipe part soldering |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666265A (en) * | 2019-09-19 | 2020-01-10 | 西安成立航空制造有限公司 | Multi-oil-path vacuum brazing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251714A (en) * | 1988-08-26 | 1993-10-12 | Msui Kokusai Sangyo Kaisha, Ltd. | Method for soldering pipe end and counter member |
| CN101192489A (en) * | 2006-11-30 | 2008-06-04 | 邱鸿智 | Ultramicro minitype high voltage slow-melting fuse structure and its production method |
| CN102922156A (en) * | 2012-10-31 | 2013-02-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Welding method for main fuel tube of engine |
| CN103586639A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining fuel manifold with nozzles and of welding structure |
| CN107234354A (en) * | 2017-08-03 | 2017-10-10 | 中国电子科技集团公司第三十八研究所 | A kind of vacuum brazing method applied to thin-wall construction |
-
2017
- 2017-11-17 CN CN201711144827.XA patent/CN107962268B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251714A (en) * | 1988-08-26 | 1993-10-12 | Msui Kokusai Sangyo Kaisha, Ltd. | Method for soldering pipe end and counter member |
| CN101192489A (en) * | 2006-11-30 | 2008-06-04 | 邱鸿智 | Ultramicro minitype high voltage slow-melting fuse structure and its production method |
| CN102922156A (en) * | 2012-10-31 | 2013-02-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Welding method for main fuel tube of engine |
| CN103586639A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining fuel manifold with nozzles and of welding structure |
| CN107234354A (en) * | 2017-08-03 | 2017-10-10 | 中国电子科技集团公司第三十八研究所 | A kind of vacuum brazing method applied to thin-wall construction |
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| CN107962268A (en) | 2018-04-27 |
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