CN220006455U - Assembled brazing filler metal sheet structure for welding - Google Patents
Assembled brazing filler metal sheet structure for welding Download PDFInfo
- Publication number
- CN220006455U CN220006455U CN202321584202.6U CN202321584202U CN220006455U CN 220006455 U CN220006455 U CN 220006455U CN 202321584202 U CN202321584202 U CN 202321584202U CN 220006455 U CN220006455 U CN 220006455U
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- CN
- China
- Prior art keywords
- nozzle
- filler metal
- brazing filler
- shell
- welding
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Links
- 238000005219 brazing Methods 0.000 title claims abstract description 66
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 42
- 238000003466 welding Methods 0.000 title claims abstract description 42
- 239000000945 filler Substances 0.000 title claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 229910000679 solder Inorganic materials 0.000 claims description 24
- 238000005476 soldering Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Abstract
The utility model relates to the technical field of radiator brazing processes, in particular to an assembled brazing filler metal sheet structure for welding, which comprises a cylindrical brazing filler metal sheet, wherein the brazing filler metal sheet comprises an upper flanging which is only in contact with the outer peripheral surface of a nozzle and a lower flanging which is only in contact with the inner wall of a shell mounting hole, and an assembly gap is kept between the nozzle and the lower flanging. Compared with the prior art, this patent has solved current aluminium matter radiator pipe mouth and casing vacuum brazing in-process through setting up flange and assembly clearance, and casing, brazing filler metal piece, nozzle three guarantee the welding clearance through the assembly, but because casing, nozzle rigidity are strong thereby lead to the three assembly difficulty to unable batch welded technical problem.
Description
Technical Field
The utility model relates to the technical field of radiator brazing processes, in particular to an assembled brazing filler metal sheet structure for welding.
Background
Under the environment that the precision and quality requirements of the metal processing industry are increasingly improved, vacuum brazing is often applied to welding of parts of precision equipment, particularly, brazing filler metal is melted in a vacuum chamber, connection of the brazing filler metal and a base metal is realized by means of capillary action, compared with common welding, the brazing flux for vacuum brazing obviously improves corrosion resistance of products, various pollution is avoided, pollution-free treatment equipment cost is avoided, good safety production conditions are provided, a large amount of expensive metal brazing flux is saved in vacuum brazing, complex flux cleaning procedures are not needed, production cost is reduced, and welding requirements among more precise metal devices can be met. For example, the sealing and fixing of the aluminum radiator pipe nozzle and the shell which are very commonly used in the market are often realized by adopting a brazing process,
when the nozzle and the shell of the traditional aluminum radiator are welded, as shown in fig. 1 and 2, a mounting hole for placing the lower end of the nozzle is formed in the shell, a flange is integrally formed on the periphery of the nozzle and clamped on the mounting hole, a brazing filler metal sheet is placed between the nozzle and the shell, the contact surface of the brazing filler metal sheet and the nozzle is a welding surface a, the contact surface of the brazing filler metal sheet and the shell is a welding surface b, the nozzle, the brazing filler metal sheet and the shell are placed into a vacuum brazing furnace together for vacuum brazing, and the brazing filler metal sheet melts and is fused with the nozzle and the shell at the welding surface a and the welding surface b respectively, so that the nozzle and the shell form sealing connection.
In fig. 1, the solder sheet has a planar circular ring structure, and in order to tightly attach and position the nozzle, the solder sheet, and the housing, a welding jig is used to fix the position of the nozzle. The planar circular brazing filler metal sheet has the following problems in the use process that the requirements on the flatness of the contact surface (namely the welding surface a) of the pipe mouth and the brazing filler metal sheet and the precision of the welding fixture are high, so that the mutual adhesion of all the welding surfaces in the welding process can be ensured, and the fluctuation of the qualification rate caused by unstable part and fixture states is reflected in the actual production.
In order to solve the technical problems, the applicant carries out a first technical improvement, namely, the improved partial assembly relation between the nozzle and the shell is shown in figure 2, the brazing filler metal sheet comprises a plane circular ring, the inner edge of the plane circular ring is integrally formed with a downward flanging, and the flanging is clamped between the lower end of the nozzle and the mounting hole of the shell; the brazing sheet with the structure is assembled with the nozzle and the shell, so that the requirement on the clamp on weldability is not high, and the welding gap is ensured by the assembly among the nozzle, the shell and the brazing sheet. However, since the thickness of the nozzle is usually more than 1mm, the rigidity is better, the rigidity of the shell is also better, the parts must be kept clean during brazing, lubrication is not allowed, small gap assembly between the three parts is difficult to realize under the condition of no lubrication, if an assembly gap is reserved between the nozzle and the flanging of the brazing filler metal sheet, the nozzle and the brazing filler metal sheet have no welding surface which is tightly attached, and therefore the welding gap cannot be ensured.
Therefore, if the assembly efficiency is required to be ensured, the welding gap is required to be ensured by matching with a high-precision welding fixture, so that the significance of improving the technical scheme of fig. 1 to the technical scheme of fig. 2 is lost; therefore, the technical innovation selects the convenience in assembly, and the welding gap is ensured through the assembly of the shell, the brazing filler metal sheet and the nozzle, and although the scheme can complete vacuum brazing without the cooperation of a high-precision welding clamp, the problem of difficult assembly is that the shell and the nozzle cannot be welded in batches under the cooperation of the brazing filler metal sheet.
Disclosure of Invention
The utility model aims to provide an assembled brazing filler metal sheet structure for welding, which is mainly used for solving the technical problems that in the vacuum brazing process of the existing aluminum radiator pipe nozzle and a shell, the brazing filler metal sheet and the nozzle ensure welding gaps through assembly, but the assembly of the shell, the nozzle is difficult due to the high rigidity of the shell and the nozzle, so that batch welding cannot be performed.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides an assembled brazing filler metal piece structure for welding, includes the brazing filler metal piece of tube-shape, and the brazing filler metal piece includes the turn-up edge that only contacts with the nozzle outer peripheral face, only contacts with the lower turn-up edge of casing mounting hole inner wall, nozzle and lower turn-up edge keep the fit-up gap.
The working principle and the beneficial effects of the utility model are as follows:
1. working principle: the solder sheet is clamped in the mounting hole of the shell, then the nozzle is inserted into the hollow part of the solder sheet, and one part of the peripheral surface of the nozzle is contacted with the upturned edge of the solder sheet.
2. The beneficial effects are that: in the prior art, the flanging is clamped at the nozzle and the shell until now through the downward flanging, and the welding gap between the shell and the nozzle is ensured through the assembly of the three parts, however, under the condition of ensuring the welding gap, if lubrication is not available, the hardness of the nozzle and the shell is higher, the three parts realize small gap assembly difficulty, and the batch welding cannot be realized under the brazing sheet structure and the welding mode.
In the technical scheme, because the rigidity of the brazing sheet is weaker than that of the shell and the nozzle, the brazing sheet can be assembled with the nozzle and the shell mounting hole relatively easily, the nozzle is independently fixed through the upper flanging, the lower flanging is assembled in the shell mounting hole, the lower flanging is only contacted with the inner wall of the shell mounting hole, and an assembly gap is kept between the lower flanging and the lower end of the nozzle. In this technical scheme, under the fixed condition of the upper and lower turn-ups of this kind of solder piece, alright guarantee that the relative position of nozzle and casing is fixed to guarantee the welding clearance of two, simultaneously, under the condition that is equipped with the assembly clearance, the nozzle lower extreme again can insert in the mounting hole easily, accomplish the assembly with the casing. In summary, this technical scheme has solved current aluminium matter radiator pipe mouth and casing vacuum brazing in-process, and casing, brazing filler metal piece, nozzle three guarantee the welding clearance through the assembly, but because casing, nozzle rigidity are strong thereby lead to the three assembly difficulty to unable batch welded technical problem.
Preferably, the upturn is in contact with the maximum diameter of the outer peripheral surface of the flange of the nozzle. Under normal conditions, after the welding of the nozzle and the shell is finished, the flange of the nozzle is clamped above the mounting hole of the shell, so that if the upturn is required to be contacted with the nozzle to fix the nozzle, the material is saved to the greatest extent, convenience in assembly can be realized, and the contact between the upturn and the maximum diameter of the peripheral surface of the flange is the best scheme. In the process of assembling the brazing filler metal sheet and the nozzle, the nozzle is coaxially inserted into the hollow part of the brazing filler metal sheet, and the flange is clamped on the inner wall of the upturned edge.
Preferably, the solder sheet further comprises a plane ring fixedly arranged between the upper flanging and the lower flanging, and the plane ring is positioned between the lower surface of the nozzle flange and the upper surface of the shell and is in contact with the nozzle and the shell. The arrangement of the plane circular ring can ensure the welding gap between the nozzle and the shell.
Preferably, the width of the assembly gap is more than or equal to 0.1mm.
Preferably, the thickness of the solder sheet is 0.5-0.7mm.
Preferably, the distance between the upper flange and the maximum diameter of the outer peripheral surface of the flange of the nozzle is smaller than 0.05mm, and the distance between the lower flange and the inner wall of the mounting hole of the shell is also smaller than 0.05mm. The clearance between the solder sheet and the welding surface of the part to be welded is required to be smaller than 0.05mm, so that good welding quality can be formed.
Preferably, the longitudinal width of the contact surface between the upturn and the maximum diameter of the outer peripheral surface of the flange of the nozzle is 1mm.
Drawings
FIG. 1 is a schematic diagram of an assembled structure of a prior art shell, a nozzle, and a solder sheet with a planar circular ring structure;
FIG. 2 is a schematic diagram of the assembly structure of the prior art shell, nozzle, and solder sheet with planar ring and turndown structure;
FIG. 3 is an assembly block diagram of a fabricated solder sheet structure for soldering in accordance with the present utility model;
fig. 4 is an enlarged view of fig. 3C of a fabricated solder sheet structure for soldering in accordance with the present utility model.
Reference numerals in the drawings of the specification include: nozzle 1, flange 11, housing 2, solder sheet 3, upturn 31, planar ring 32, downturn 33, and assembly gap 4.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 3-4, the assembled solder sheet 3 structure for welding comprises a cylindrical solder sheet 3, wherein the thickness of the solder sheet 3 is 0.6mm, the solder sheet 3 comprises an upper flange 31 and a lower flange 33, a plane with the upper and lower width of 1mm is processed at the maximum diameter of a flange 11 of a nozzle 1, the upper flange 31 is only contacted with the plane of the flange 11 of the nozzle 1, and the gap between the contact surfaces of the upper flange 31 and the lower flange 11 is less than 0.05mm; the downward flanging 33 is only in contact with the inner wall of the mounting hole of the shell 2, and the gap between the downward flanging 33 and the mounting hole is smaller than 0.05mm, so that the brazing filler metal sheet 3 is uniformly connected with the shell 2 and the nozzle 1 after being melted in the vacuum brazing process. The brazing sheet 3 further comprises a plane circular ring 32 integrally formed between the upper flange 31 and the lower flange 33, and the plane circular ring 32 is positioned between the lower surface of the flange 11 of the nozzle 1 and the upper surface of the shell 2 and is in contact with the nozzle 1 and the shell 2. The whole brazing sheet 3 is positioned between the nozzle 1 and the shell 2, and is attached to ensure a welding gap between the nozzle 1 and the shell 2.
The nozzle 1 and the downward flange 33 keep an assembly gap 4, the width of the assembly gap 4 is more than or equal to 0.1mm, and the lower end of the nozzle 1 can be easily inserted into the mounting hole to complete assembly with the shell 2 under the condition that the assembly gap 4 is arranged.
From the above, the specific implementation manner of this embodiment is as follows:
the brazing filler metal sheet 3 is clamped in the mounting hole of the shell 2 preferentially, the plane circular ring 32 of the brazing filler metal sheet 3 is clamped on the mounting hole, then the nozzle 1 is inserted into the hollow part of the brazing filler metal sheet 3, the flange 11 of the nozzle 1 is contacted with the inner surface of the upturned edge 31 of the brazing filler metal sheet 3, then the brazing filler metal sheet 3, the shell 2 and the nozzle 1 are fed into a vacuum brazing furnace together for vacuum brazing, the brazing filler metal sheet 3 is soaked in a welding gap between the shell 2 and the nozzle 1 through capillary action after being melted, and the shell 2 and the nozzle 1 are connected in a sealing manner after being cooled.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The utility model provides an assembled brazing filler metal piece structure for welding, includes the brazing filler metal piece of tube-shape, its characterized in that: the brazing sheet comprises an upper flanging which is only in contact with the peripheral surface of the nozzle, and a lower flanging which is only in contact with the inner wall of the mounting hole of the shell, and the nozzle and the lower flanging keep an assembly gap.
2. The assembled solder sheet structure for soldering as defined in claim 1, wherein: the upturn is contacted with the maximum diameter of the outer peripheral surface of the flange of the nozzle.
3. The assembled solder sheet structure for soldering as defined in claim 1, wherein: the brazing filler metal sheet also comprises a plane circular ring fixedly arranged between the upper flanging and the lower flanging, and the plane circular ring is positioned between the lower surface of the nozzle flange and the upper surface of the shell and is in contact with the nozzle and the shell.
4. The assembled solder sheet structure for soldering as defined in claim 1, wherein: the width of the assembly gap is more than or equal to 0.1mm.
5. The assembled solder sheet structure for soldering as defined in claim 1, wherein: the thickness of the brazing sheet is 0.5-0.7mm.
6. The assembled solder sheet structure for soldering as defined in claim 1, wherein: the distance between the upper flanging and the maximum diameter of the outer peripheral surface of the flange of the nozzle is smaller than 0.05mm, and the distance between the lower flanging and the inner wall of the mounting hole of the shell is also smaller than 0.05mm.
7. The assembled solder sheet structure for soldering as defined in claim 2, wherein: the longitudinal width of the contact surface between the upturn and the maximum diameter of the outer peripheral surface of the flange of the nozzle is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584202.6U CN220006455U (en) | 2023-06-20 | 2023-06-20 | Assembled brazing filler metal sheet structure for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584202.6U CN220006455U (en) | 2023-06-20 | 2023-06-20 | Assembled brazing filler metal sheet structure for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220006455U true CN220006455U (en) | 2023-11-14 |
Family
ID=88683995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321584202.6U Active CN220006455U (en) | 2023-06-20 | 2023-06-20 | Assembled brazing filler metal sheet structure for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220006455U (en) |
-
2023
- 2023-06-20 CN CN202321584202.6U patent/CN220006455U/en active Active
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