CN116275424B - Welding device for ultrathin aluminum strip heat exchanger forming process - Google Patents
Welding device for ultrathin aluminum strip heat exchanger forming process Download PDFInfo
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- CN116275424B CN116275424B CN202310498711.5A CN202310498711A CN116275424B CN 116275424 B CN116275424 B CN 116275424B CN 202310498711 A CN202310498711 A CN 202310498711A CN 116275424 B CN116275424 B CN 116275424B
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Sealing Devices (AREA)
Abstract
The application relates to the field of argon arc welding, and discloses a welding device for an ultrathin aluminum strip heat exchanger forming process, which mainly comprises a sealing cover, a sealing piston and a supporting mechanism, wherein the sealing piston consists of a piston substrate, a piston rubber ring and a piston partition plate, the outer periphery side of the piston rubber ring is provided with a bowl top, a bowl skirt and a compensation sealing part, so that a radiating pipe can be sealed when the sealing piston moves bidirectionally, one end of the sealing piston is filled with argon gas to push the sealing piston to move, air in the radiating pipe is discharged, and meanwhile, the argon gas is reversely pumped to recover the argon gas. The application has the advantages of small argon filling amount and high-purity argon recycling in a single welding process, and can effectively seal the inner cavity of the radiating pipe in both the argon filling stage and the recycling stage, ensure the purity of the recovered argon, realize recycling and save resources.
Description
Technical Field
The application relates to the technical field of argon arc welding, in particular to a welding device for an ultrathin aluminum strip heat exchanger forming process.
Background
The ultrathin aluminum strip heat exchanger is an aluminum fin tube heat exchanger, and is formed by punching and shearing an ultrathin aluminum strip, and welding a heat exchanger tube after passing through the tube. Modern welding technology can connect fins of different materials together, and can manufacture finned tubes simply and economically, has better heat transfer and mechanical properties, and has been applied. Because residues in the weld are detrimental to heat transfer and even cause breakage, the quality of the welding process must be ensured when producing such finned tubes, and argon arc welding, which is relatively low cost, is typically used, including TIG (non-consumable electrode gas-shielded arc welding), MIG (consumable electrode gas-shielded arc welding) and MAG (automatic welding of the wire fed by a wire feeder).
Argon arc welding, that is, the welding process, in which inert gas-argon gas is sprayed near the weld joint to prevent oxidation of the weld zone. For the welding process of the ultrathin piece, the root welding seam is protected by applying protective gas on the back of the welding piece, two ends of the pipe piece to be welded are generally sealed by using a sealing adhesive tape, argon is filled, and the welding is performed after the concentration of the protective gas reaches the standard. However, the method often needs to fill more than one time of the volume of the tube cavity to remove the air in the original tube, and is not easy to recycle, so that the welding cost is high and the resource is wasted.
The internal shielding gas device for the 2G girth weld argon arc welding of the pipe test piece disclosed in the Chinese patent CN111230270B provides an exhaust mode, but still has a mixing stage of argon and air in the pipe, so that more argon filling is needed, and the argon cannot be effectively recovered. The argon filling sealing protection device suitable for the pipeline argon arc welding disclosed by the Chinese patent CN113245678B can be filled with a small amount of argon, but for the fin tube type welding of the application, the device is inconvenient to use due to the fact that the fins are densely distributed and the welding positions are changed by continuous operation, and the argon can not be effectively recycled.
Therefore, a welding device for an ultrathin aluminum strip heat exchanger forming process is provided, which aims to solve the technical problems, control the single argon filling amount and effectively recycle the argon.
Disclosure of Invention
The application provides a welding device for an ultrathin aluminum strip heat exchanger forming process, which has the advantages of small argon filling amount and high-purity argon recycling in a single welding process and is used for solving the technical problems in the background art.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a welding set for ultra-thin aluminium strip heat exchanger shaping technology, includes: the outside activity of air guide bracing piece has cup jointed the closing cap, the one end fixedly connected with seal piston of air guide bracing piece, the outside fixed cup joint of air guide bracing piece has supporting mechanism, supporting mechanism is located between closing cap and the seal piston, supporting mechanism is used for guaranteeing seal piston's the stability of advance stage, annular rubber ring is established to seal piston's outward flange, the air filling way has been seted up to seal piston's inner wall, the inside of air filling way intercommunication air guide bracing piece and the inside of cooling tube, the exhaust passage has been seted up in the inside of closing cap, the inside and the outside atmosphere of exhaust passage intercommunication cooling tube, the outer tip of exhaust passage is by sealing the stopper shutoff.
Further, supporting mechanism includes backup pad, spout, spring, ejector pin and gyro wheel, and the backup pad is fixed to be cup jointed in the outside of air guide bracing piece, has radially seted up the spout in the backup pad, and four spouts annular array distributes in the inside of backup pad, at the inner bottom fixedly connected with spring of spout, the one end fixedly connected with ejector pin of spring, at the free end fixed mounting of ejector pin has the gyro wheel.
Further, lubricating oil is applied to the outer peripheral side of the seal piston.
Further, the sealing piston comprises a piston base plate, a piston rubber ring and a piston partition plate, wherein the piston base plate is fixedly connected to the end part of the air guide supporting rod, the piston rubber ring is annular and fixedly installed on the outer peripheral side of the piston base plate, the piston partition plate is fixedly installed in the piston rubber ring, the piston partition plate is annular and divides the inner cavity of the piston rubber ring into a left cavity and a right cavity, and the left cavity and the constant pressure cavity are respectively an adjusting cavity and a constant pressure cavity.
Further, an argon gas channel and a constant pressure channel are respectively formed in the piston base plate, the argon gas channel consists of a source gas port, a tail gas port and an expansion port, the source gas port, the tail gas port and the expansion port are converged in the same channel, the source gas port is communicated with the inner cavity of the air guide support rod, the tail gas port is communicated with the inner cavity of the radiating tube, the expansion port is communicated with the inner cavity of the adjusting cavity, the inner diameter of the tail gas port is smaller than the inner diameter of the expansion port, and the constant pressure channel is used for communicating the constant pressure cavity with external atmosphere.
Further, the periphery side of the piston rubber ring is provided with a bowl top, a bowl skirt and a compensation sealing part, wherein the bowl top is an arc top surface formed by converging arc surfaces at the left side and the right side of the piston rubber ring, the bowl skirt is positioned at one side of the bowl top, the bowl skirt is a thin-wall annular body, and the compensation sealing part is an annular body and is fixedly arranged at the other side of the bowl top.
Further, the piston baffle comprises annular plate portion and ring portion, and ring portion is located the inside and outside annular wall of annular plate portion, and the fixed joint of ring portion that is located the inside annular wall of annular plate portion is installed in piston base plate periphery side, and the fixed joint of ring portion that is located the outside annular wall of annular plate portion is on the inner wall of piston rubber ring, and annular plate portion is the rigidity annular plate.
Further, the left and right sides of the ring portion are formed by inclined surface portions inclined toward the ring plate portion, the inclined surface portion located at one side of the ring portion of the outer ring wall of the ring plate portion is cut off to form an arc surface portion, and the arc surface portion is located close to the constant pressure cavity side relative to the piston partition plate.
The application has the following beneficial effects:
through establishing air guide bracing piece, closing cap and sealed piston in the cooling tube, there is the argon gas of filling in the air guide bracing piece, in entering the space that closing cap, sealed piston and cooling tube enclose through sealed piston to along with the argon gas volume promotes, carry out sealed piston and advance, the air in the discharge cooling tube is simultaneously, fills full argon gas, improves argon gas filling efficiency, reduces single argon gas filling quantity.
Through establishing bowl top, bowl skirt and compensation sealing portion at piston rubber ring tip, fill the argon gas stage, adjust the chamber inflation, the argon gas is retrieved the stage, adjust the chamber shrink for argon gas fills the stage and retrieves the stage, the inner chamber of cooling tube can both effectively be sealed to the homoenergetic, guarantee the purity of argon gas recovery, circulated use, resources are saved.
Drawings
FIG. 1 is a front view of the internal structure of the present application;
FIG. 2 is a side partial cross-sectional view of the support mechanism of FIG. 1 in accordance with the present application;
FIG. 3 is an enlarged schematic view of a portion of the application at A in FIG. 1;
FIG. 4 is a schematic view of a piston separator plate according to the present application;
FIG. 5 is a schematic top view of a seal piston of the present application in a three-dimensional configuration;
fig. 6 is a schematic bottom view of a three-dimensional structure of a sealing piston of the present application.
In the figure: 1. an air guide support rod; 2. a cover; 3. a sealing piston; 31. a piston base plate; 311. an argon gas channel; b. a source gas port; c. a last gas port; d. an expansion port; 312. a constant pressure channel; 32. piston rubber ring; 321. a bowl top; 322. bowl skirt; 323. a compensation seal; e. a regulating chamber; f. a constant pressure chamber; 33. a piston separator; 331. a ring plate portion; 332. a loop portion; g. a bevel portion; h. an arc surface portion; 4. a support mechanism; 41. a support plate; 42. a chute; 43. a spring; 44. a push rod; 45. a roller; 5. a sealing plug; a. and a radiating pipe.
Detailed Description
The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
The radiating pipe a is a pipe fitting to be welded, and the outside is sleeved with thin aluminum fins.
Referring to fig. 1 and 2, a welding device for a forming process of an ultrathin aluminum strip heat exchanger comprises an air guide supporting rod 1, wherein a sealing cover 2 is movably sleeved outside the air guide supporting rod 1, the sealing cover 2 is used for sealing one end of a radiating pipe a, one end of the air guide supporting rod 1 is fixedly connected with a sealing piston 3, a supporting mechanism 4 is fixedly sleeved outside the air guide supporting rod 1, the supporting mechanism 4 is located between the sealing cover 2 and the sealing piston 3, and the supporting mechanism 4 is used for guaranteeing stability of an advancing stage of the sealing piston 3. The annular rubber ring is arranged at the outer edge of the sealing piston 3, the size of the annular rubber ring is matched with the inner diameter of the radiating pipe a for sliding sealing, and the inner wall of the sealing piston 3 is provided with an air charging channel which is communicated with the inside of the air guide supporting rod 1 and the inside of the radiating pipe a. An exhaust passage is arranged in the sealing cover 2, the exhaust passage is communicated with the internal atmosphere and the external atmosphere of the radiating pipe a, and the outer end part of the exhaust passage is sealed by a sealing plug 5.
The supporting mechanism 4 comprises a supporting plate 41, sliding grooves 42, springs 43, ejector rods 44 and rollers 45, wherein the supporting plate 41 is fixedly sleeved on the outer side of the air guide supporting rod 1, the sliding grooves 42 are formed in the supporting plate 41 in the radial direction, the sliding grooves 42 are four, the four sliding grooves 42 are distributed in the supporting plate 41 in an annular array mode, the springs 43 are fixedly connected to the inner bottoms of the sliding grooves 42, one ends of the springs 43 are fixedly connected with the ejector rods 44, the rollers 45 are fixedly arranged at the free ends of the ejector rods 44, and the springs 43 are used for propping the ejector rods 44 out of the sliding grooves 42 to enable the rollers 45 to roll against the inner walls of the radiating pipes a.
When the radiator is used, the supporting mechanism 4 is attached to the sealing cover 2, one end of the radiating pipe a is sealed by the sealing cover 2, then the sealing plug 5 is taken down, argon is filled into the radiating pipe a through the inside of the sealing piston 3 by the air guide supporting rod 1, after a small amount of air in an initial stage is exhausted, the sealing plug 5 is installed, argon is continuously filled, the air pressure of the sealed space in the radiating pipe a is increased, the sealing piston 3 is pushed to overcome the inner wall resistance of the radiating pipe a to travel, and the air filling is stopped when the predetermined position is reached, namely the welding operation is started.
In order to reduce the argon filling amount, it is necessary to reduce the forward resistance of the seal piston 3 as much as possible, and lubricating oil may be applied to the outer peripheral side of the seal piston 3 at the beginning.
Example two
Referring to fig. 1 and 3, on the basis of the first embodiment, the structural features of the sealing piston 3 are further improved to achieve the effect of recovering high purity argon.
The sealing piston 3 is composed of a piston base plate 31, a piston rubber ring 32 and a piston partition plate 33, the piston base plate 31 is a base body part and is fixedly connected to the end part of the air guide supporting rod 1, the piston rubber ring 32 is an annular rubber ring in the first alternative embodiment, the piston rubber ring 32 is fixedly arranged on the outer peripheral side of the piston base plate 31, the piston rubber ring 32 is used for enabling the sealing piston 3 to seal the inner cavity of the radiating pipe a, the piston partition plate 33 is fixedly arranged in the piston rubber ring 32, the piston partition plate 33 is annular and divides the inner cavity of the piston rubber ring 32 into a left cavity and a right cavity, and the left cavity and the constant pressure cavity f are respectively an adjusting cavity e and a constant pressure cavity f.
An argon gas channel 311 and a constant pressure channel 312 are respectively arranged in the piston substrate 31, the argon gas channel 311 replaces an inflation channel in the first embodiment, the argon gas channel 311 consists of a source gas port b, a tail gas port c and an expansion port d, the source gas port b, the tail gas port c and the expansion port d are converged in the same channel, the source gas port b is communicated with the inner cavity of the air guide support rod 1, the tail gas port c is communicated with the inner cavity of the radiating tube a, the expansion port d is communicated with the inner cavity of the adjusting cavity e, and the diameter of the tail gas port c is smaller than that of the expansion port d; the constant pressure passage 312 is for communicating the constant pressure chamber f with the outside atmosphere.
The left and right side walls of the piston rubber ring 32 are thin walls, the arc line of the inner cavity is an elliptic arc line, the piston rubber ring 32 is deformable flexible rubber, can be natural rubber or artificial synthetic rubber, and is generally similar to the conventional sealing rubber cup in material and can be used in the application.
The periphery side of piston rubber ring 32 has bowl top 321, bowl skirt 322 and compensation sealing part 323 to constitute, bowl top 321 is the circular arc top end face that the left and right sides circular arc face of piston rubber ring 32 gathered together formed, bowl skirt 322 is located one side of bowl top 321, and bowl skirt 322 is the thin wall cyclic annular body, bowl top 321 and bowl skirt 322 integrated into one piece, compensation sealing part 323 is the cyclic annular body and fixed mounting in the opposite side of bowl top 321, in piston rubber ring 32 in natural state, the biggest external diameter of compensation sealing part 323 is less than the external diameter of bowl top 321, namely as shown in fig. 2, when the inner wall of cooling tube a is contacted to bowl top 321 tip in natural state, compensation sealing part 323 has not contacted the inner wall of cooling tube a yet, the clearance is about 1-2mm. When the adjustment chamber e is filled and expanded, the compensating seal 323 is in contact with the inner wall of the radiating pipe a.
The mounting node of the piston rubber ring 32 and the piston base plate 31 adopts annular groove clamping, then is glued and fixed, and can be adapted by replacing the piston rubber ring 32 under the condition that the dimension specification of the radiating pipe a is not greatly different.
Referring to fig. 3 and 4, the piston partition 33 is composed of a ring plate portion 331 and a ring portion 332, the ring plate portion 331 is a rigid ring plate, and is not easily deformed by air pressure, the ring portion 332 is located on an inner and outer ring wall of the ring plate portion 331, wherein the ring portion 332 located on the inner ring wall of the ring plate portion 331 is fixedly clamped and mounted on the outer peripheral side of the piston substrate 31, and the ring portion 332 located on the outer ring wall of the ring plate portion 331 is fixedly clamped and mounted on the inner wall of the piston rubber ring 32.
The left and right sides of the ring portion 332 are formed of inclined surface portions g inclined toward the ring plate portion 331, and the inclined surface portion g on one side of the ring portion 332 located on the outer peripheral wall of the ring plate portion 331 is cut out to form an arc surface portion h, which is located on the constant pressure chamber f side with respect to the position of the piston diaphragm 33. Due to the design of the inclined surface part g and the cambered surface part h, when the piston rubber ring 32 expands, the inclined pushing deformation at the inclined surface part g can promote the compensation sealing part 323 to contact the inner wall of the radiating pipe a, and the cambered surface part h is used for synchronous smooth deformation.
Fig. 5 and 6 are external views of the sealing piston 3 to facilitate understanding of its configuration.
The specific action flow and principle of the application are as follows:
when in use, the supporting mechanism 4 is attached to the sealing cover 2, one end of the radiating pipe a is sealed by the sealing cover 2, then the sealing plug 5 is removed, argon is filled into the radiating pipe a from the air guide supporting rod 1 through the inside of the sealing piston 3, after a small amount of air in the initial stage is exhausted, argon is continuously filled after the sealing plug 5 is installed, the air pressure in the space sealed in the radiating pipe a is increased, the sealing piston 3 is pushed to overcome the resistance of the inner wall of the radiating pipe a to move, the argon in the air guide supporting rod 1 enters the air filling channel through the source air port b, and enters the annular closed containing cavity in the radiating pipe a through the air port c and the expansion port d respectively, and part enters the adjusting cavity e through the expansion port d because part of the resistance to move is needed to be overcome, the argon filling pressure intensity in the radiating pipe a and the adjusting cavity e is higher than the atmospheric pressure at the other side of the sealing piston 3, and in the process of continuously inflating, as the diameter of the expansion port d is higher than the diameter of the tail gas port c, the pressure in the adjusting cavity e is higher than the annular airtight cavity pressure in the radiating pipe a, the piston rubber ring 32 is promoted to expand, the compensating sealing part 323 can be contacted with the inner wall of the radiating pipe a under the assistance of inclined sliding at the inclined surface part g, so that the sealing sliding can be carried out, the waste caused by argon leakage is avoided, the inflating is stopped after the sealing piston 3 reaches the designated position, the pressure in the adjusting cavity e and the radiating pipe a is gradually balanced, the compensating sealing part 323 restores to the natural state position, and the welding process is normally carried out.
After welding is finished and the welding seam is cooled, argon is pumped into the air guide supporting rod 1, the argon returns through the original path, the piston rubber ring 32 is positioned at the e side part of the adjusting cavity and is contracted due to low pressure, the inclination and sliding of the inclined surface part g and the cambered surface part h enable the bowl skirt 322 to be more attached to the inner wall of the radiating pipe a, the sealing performance is ensured, and meanwhile, the external atmospheric pressure pushes the sealing piston 3 to move back, so that the recovery of the argon is gradually completed.
Claims (5)
1. Welding device for ultra-thin aluminum strip heat exchanger molding process, characterized by comprising: the air guide support rod (1), sealing cover (2) has been cup jointed in the outside activity of air guide support rod (1), the one end fixedly connected with seal piston (3) of air guide support rod (1), the outside of air guide support rod (1) has fixedly cup jointed supporting mechanism (4), supporting mechanism (4) are located between sealing cover (2) and seal piston (3), supporting mechanism (4) are used for guaranteeing sealing piston (3) advance stage's stability, annular rubber ring is established at sealing piston (3)'s outer edge, the inner wall of sealing piston (3) has seted up the gas filled channel, the inside of gas filled channel intercommunication air guide support rod (1) and the inside of cooling tube (a) the inside of sealing cover (2) has been seted up the exhaust passage, the inside and the outside atmosphere of exhaust passage intercommunication cooling tube (a), the outer tip of exhaust passage is by sealing plug (5) shutoff;
the sealing piston (3) consists of a piston base plate (31), a piston rubber ring (32) and a piston partition plate (33), wherein the piston base plate (31) is fixedly connected to the end part of the air guide supporting rod (1), the piston rubber ring (32) is annular and fixedly arranged on the outer peripheral side of the piston base plate (31), the piston partition plate (33) is fixedly arranged in the piston rubber ring (32), the piston partition plate (33) is annular and divides the inner cavity of the piston rubber ring (32) into a left cavity and a right cavity, and the two cavities are an adjusting cavity (e) and a constant pressure cavity (f);
an argon gas channel (311) and a constant pressure channel (312) are respectively formed in the piston substrate (31), the argon gas channel (311) is composed of a source gas port (b), a tail gas port (c) and an expansion port (d), the source gas port (b), the tail gas port (c) and the expansion port (d) are converged in the same channel, the source gas port (b) is communicated with the inner cavity of the air guide supporting rod (1), the tail gas port (c) is communicated with the inner cavity of the radiating pipe (a), the expansion port (d) is communicated with the inner cavity of the adjusting cavity (e), the inner diameter of the tail gas port (c) is smaller than the inner diameter of the expansion port (d), and the constant pressure channel (312) is used for communicating the constant pressure cavity (f) with external atmosphere;
the periphery side of piston rubber ring (32) has bowl top (321), bowl skirt (322) and compensation sealing part (323) to constitute, bowl top (321) is the circular arc terminal surface that forms after the left and right sides circular arc face of piston rubber ring (32) gathers together, bowl skirt (322) are located one side of bowl top (321), and bowl skirt (322) are the thin wall cyclic annular body, compensation sealing part (323) are the cyclic annular body and fixed mounting in the opposite side at bowl top (321).
2. The welding device for the ultra-thin aluminum strip heat exchanger forming process according to claim 1, wherein the supporting mechanism (4) comprises a supporting plate (41), sliding grooves (42), springs (43), ejector rods (44) and rollers (45), the supporting plate (41) is fixedly sleeved on the outer side of the air guide supporting rod (1), the sliding grooves (42) are radially formed in the supporting plate (41), the sliding grooves (42) are four, the four sliding grooves (42) are distributed in the supporting plate (41) in an annular array mode, the springs (43) are fixedly connected to the inner bottoms of the sliding grooves (42), one ends of the springs (43) are fixedly connected with the ejector rods (44), and the rollers (45) are fixedly arranged at the free ends of the ejector rods (44).
3. Welding device for the ultra-thin aluminum strip heat exchanger forming process according to claim 2, characterized in that lubricating oil is smeared on the outer peripheral side of the sealing piston (3).
4. The welding device for the ultra-thin aluminum strip heat exchanger forming process according to claim 1, wherein the piston separator (33) is composed of a ring plate portion (331) and a ring portion (332), the ring portion (332) is located on inner and outer ring walls of the ring plate portion (331), the ring portion (332) located on the inner ring wall of the ring plate portion (331) is fixedly clamped and mounted on the outer peripheral side of the piston substrate (31), the ring portion (332) located on the outer ring wall of the ring plate portion (331) is fixedly clamped and mounted on the inner wall of the piston rubber ring (32), and the ring plate portion (331) is a rigid ring plate.
5. The welding device for the ultra-thin aluminum strip heat exchanger forming process according to claim 4, wherein the left and right sides of the ring portion (332) are composed of inclined surface portions (g) inclined toward the ring plate portion (331), the inclined surface portions (g) on one side of the ring portion (332) of the outer annular wall of the ring plate portion (331) are cut out to form arc surface portions (h), and the arc surface portions (h) are positioned on the side close to the constant pressure chamber (f) with respect to the piston partition plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310498711.5A CN116275424B (en) | 2023-05-06 | 2023-05-06 | Welding device for ultrathin aluminum strip heat exchanger forming process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310498711.5A CN116275424B (en) | 2023-05-06 | 2023-05-06 | Welding device for ultrathin aluminum strip heat exchanger forming process |
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| CN116275424A CN116275424A (en) | 2023-06-23 |
| CN116275424B true CN116275424B (en) | 2023-10-03 |
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| CN209035675U (en) * | 2018-11-09 | 2019-06-28 | 四川岷河管道建设工程有限公司 | A kind of argon inlet device |
| CN111299767A (en) * | 2020-03-17 | 2020-06-19 | 中船澄西扬州船舶有限公司 | Internal filling type argon filling welding device and welding method for butt welding of pipelines |
| CN214463758U (en) * | 2020-11-25 | 2021-10-22 | 南京创洁净化设备有限公司 | Automatic sealing device for door bottom |
| CN115837506A (en) * | 2022-10-28 | 2023-03-24 | 中国石油化工集团有限公司 | Stainless steel branch pipe welding argon filling device and using method |
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| CN116275424A (en) | 2023-06-23 |
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