CN116652317A - Induction brazing equipment and welding method suitable for thin-wall aluminum dense micro-channels - Google Patents
Induction brazing equipment and welding method suitable for thin-wall aluminum dense micro-channels Download PDFInfo
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- CN116652317A CN116652317A CN202310667808.4A CN202310667808A CN116652317A CN 116652317 A CN116652317 A CN 116652317A CN 202310667808 A CN202310667808 A CN 202310667808A CN 116652317 A CN116652317 A CN 116652317A
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- induction coil
- brazing
- annular induction
- thin
- lower annular
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- 230000006698 induction Effects 0.000 title claims abstract description 133
- 238000005219 brazing Methods 0.000 title claims abstract description 67
- 238000003466 welding Methods 0.000 title claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 4
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- SAPGTCDSBGMXCD-UHFFFAOYSA-N (2-chlorophenyl)-(4-fluorophenyl)-pyrimidin-5-ylmethanol Chemical compound C=1N=CN=CC=1C(C=1C(=CC=CC=1)Cl)(O)C1=CC=C(F)C=C1 SAPGTCDSBGMXCD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/002—Soldering by means of induction heating
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a thin-wall aluminum dense micro-channel induction brazing device and a welding method, and belongs to the technical field of welding. The welding device comprises upper and lower annular induction coils and an induction coil position adjusting mechanism, wherein the lower annular induction coil is fixedly connected with the induction coil position adjusting mechanism, and when in welding, the upper annular induction coil is positioned right above the lower annular induction coil, and the induction coil position adjusting mechanism can adjust the displacement of the lower annular induction coil along the vertical direction; the middle of the lower annular induction coil is a horizontal section, the two ends of the lower annular induction coil incline downwards, the cross section shapes of the upper annular induction coil and the lower annular induction coil correspond to the cross section shape of the pre-welded collecting pipe, and gaps are reserved between the upper annular induction coil and the cross section shape of the pre-welded collecting pipe. The invention is suitable for welding the thin-wall aluminum dense micro-channels, ensures the quality of welding seams, improves the welding efficiency, and has the advantages of complete filling of the brazing seams and bright two sides of the brazing seams.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a thin-wall aluminum dense micro-channel induction brazing device and a welding method.
Background
Because the dense micro-channel structure of the light metal cabin body is made of aluminum and is a thin-wall structure, the thin-wall structure is extremely easy to melt due to excessive heating in the welding process, and other pipe walls or square pipe structures are overheated and melted due to temperature accumulation in continuous welding, the problems of high brazing difficulty and low success rate of primary welding of multiple welding seams exist, and key control factors in the manufacturing process are difficult to quantify and treat.
Disclosure of Invention
Based on the defects, the invention aims to provide the induction brazing equipment and the welding method suitable for the thin-wall aluminum dense micro-channels, which are suitable for welding the thin-wall aluminum dense micro-channels and meet the requirement of rapid manufacturing of a large-area micro-channel cooling system of a high Mach aircraft.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a be applicable to intensive micro-channel induction brazing equipment of thin wall aluminium, includes upper portion annular induction coil, lower part annular induction coil and induction coil position adjustment mechanism fixed connection, during the welding, upper portion annular induction coil be located the lower part annular induction coil directly over, induction coil position adjustment mechanism can adjust the displacement of lower part annular induction coil along vertical direction; the middle of the lower annular induction coil is a horizontal section, the two ends of the lower annular induction coil incline downwards, the cross section shapes of the upper annular induction coil and the lower annular induction coil correspond to the cross section shape of the pre-welded collecting pipe, and gaps are reserved between the upper annular induction coil and the cross section shape of the pre-welded collecting pipe.
Furthermore, the two ends of the lower annular induction coil are U-shaped and incline downwards.
Further, the induction coil position adjusting mechanism comprises a screw rod, a supporting frame, a bearing and a horizontal supporting rod, wherein the outer ring and the inner ring of the bearing are fixedly connected in the axial direction without relative displacement, and can relatively rotate in the radial direction; the middle section of support frame be the opening structure of one side indent, the lead screw run through in upper and lower plane center of support frame and its threaded connection, the upper end of lead screw be the rocker structure, the bearing be located the opening structure in, the middle section of lead screw with bearing inner race fixed connection, the bearing outer lane pass through horizontal branch with U type open-ended induction coil fixed connection.
Further, the lower annular induction coil is a water-cooled temperature-adjustable induction coil, a copper pipe with the diameter of 4-10mm is adopted, and the wall thickness of the copper pipe is 1-3mm; the upper annular induction coil is a water-cooled temperature-adjustable induction coil, a copper pipe with the diameter of 1-4mm is adopted, and the wall thickness of the copper pipe is 0.2-1mm.
Further, the gap is 2mm-15mm.
Another object of the present invention is to provide a method for induction brazing suitable for thin-walled aluminum dense micro-channels, obtained by the brazing apparatus as described above, comprising the steps of:
step S1, inserting a dense micro-channel calandria into a cavity of a collecting pipe, wherein the dense micro-channel calandria is in clearance fit with the cavity; placing the collecting pipe at the inner center positions of the upper annular induction coil and the lower annular induction coil;
step S2, smearing annular brazing filler metal at a welding seam, starting a lower annular induction coil power supply, selecting high-power pulse adjustable alternating current for welding, rapidly heating the front side and the rear side of a collecting pipe, and finely adjusting the upper position and the lower position of the lower annular induction coil through an induction coil position adjusting mechanism for controlling the heat input position; the annular brazing filler metal is observed to generate a melting phenomenon, the power supply of the lower annular induction coil is immediately turned off, the upper annular induction coil power supply is started, and small-power pulse adjustable alternating current is selected for welding, so that the temperature of the annular brazing filler metal can be increased in a small range until the annular brazing filler metal is observed to be completely melted and spread, after welding, brazing seams are completely filled, two sides of the brazing seams are bright, the brazing corners are round in transition, and a pipeline is not blocked.
Further, the power adjustable range of the lower annular induction coil is 20-40kW, and the power adjustable range of the upper annular induction coil is 5-15kW.
Further, the wall thickness of the dense micro-channel calandria ranges from 0.1 mm to 0.6mm.
Further, the wall thickness of the collecting pipe is 1-5mm, and the fit clearance between the dense micro-channel row pipes and the collecting pipe is 0.1-0.5mm.
Furthermore, the annular brazing filler metal is aluminum silicon brazing filler metal or aluminum copper brazing filler metal.
The beneficial effects of the invention are as follows: the invention is suitable for welding the dense micro-flow channels of the thin-wall aluminum, ensures the quality of welding seams, improves the welding efficiency, has the advantages of complete filling of the brazing seams, bright two sides of the brazing seams, no crack, unfilled and other destructive defects of the brazing seams, good contact between the brazing filler metal and base materials at two sides, round and moist transition of the brazing corners and no blockage of pipelines.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a thin-walled aluminum dense micro-channel induction brazing weld;
FIG. 2 is a schematic diagram of a portion of a thin-walled aluminum dense micro-channel induction braze welding;
FIG. 3 is a top view of a thin-walled aluminum dense microchannel gauntlet and header;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic diagram of post-weld formation for thin-walled aluminum dense micro-channel induction brazing;
FIG. 6 is a schematic diagram of the post-weld structure of a thin-walled aluminum dense micro-channel induction braze weld.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1
As shown in fig. 1, the induction brazing device suitable for the thin-wall aluminum dense micro-channel comprises an upper annular induction coil 6, a lower annular induction coil 1 and an induction coil position adjusting mechanism 2, wherein the lower annular induction coil 1 is fixedly connected with the induction coil position adjusting mechanism 2, the upper annular induction coil 6 is positioned right above the lower annular induction coil 1 during welding, and the induction coil position adjusting mechanism 2 can adjust the displacement of the lower annular induction coil 1 along the vertical direction; the middle of the lower annular induction coil 1 is a horizontal section, two ends of the lower annular induction coil are U-shaped and incline downwards, the cross section of the upper annular induction coil 6 and the cross section of the lower annular induction coil 1 correspond to the cross section of the pre-welded collecting pipe 4, and gaps of 2mm-15mm are reserved between the upper annular induction coil and the pre-welded collecting pipe 4. The induction coil position adjusting mechanism 2 comprises a screw rod 201, a supporting frame 202, a bearing 204 and a horizontal supporting rod 205, wherein the outer ring and the inner ring of the bearing 204 are fixedly connected in the axial direction without relative displacement, and can relatively rotate in the radial direction; the middle section of support frame 202 be the opening structure of one side indent, lead screw 201 run through in the upper and lower plane center of support frame 202 and its threaded connection, the upper end of lead screw 201 be rocker structure 203, bearing 204 be located the opening structure in, the middle section of lead screw 201 with bearing 204 inner circle fixed connection, the bearing 204 outer lane pass through horizontal branch 205 with U type open type induction coil 1 fixed connection, rotate rocker structure 203 and can change lower part annular induction coil 1 displacement in vertical direction. The lower annular induction coil 1 is a water-cooled temperature-adjustable induction coil, and adopts a copper pipe with the diameter of 4-10mm, and the wall thickness of the copper pipe is 1-3mm; the upper annular induction coil 6 is a water-cooled temperature-adjustable induction coil, and adopts a copper pipe with the diameter of 1-4mm, and the wall thickness of the copper pipe is 0.2-1mm.
Example 2
The method for induction brazing of the dense micro-flow channels for thin-wall aluminum, which is obtained by adopting the brazing equipment in the embodiment 1, comprises the following steps:
step S1, as shown in FIG. 2, the dense micro-channel calandria 3 is inserted into a cavity of the collecting pipe 4, and the dense micro-channel calandria are in clearance fit, wherein the fit clearance is 0.1-0.5mm; the collecting pipe 4 is arranged at the inner center of the upper annular induction coil 6 and the lower annular induction coil 1, the wall thickness of the dense micro-channel calandria 3 ranges from 0.1 mm to 0.6mm, and the wall thickness of the collecting pipe 4 ranges from 1mm to 5mm; a top view and a partial enlarged view of the thin-wall aluminum dense micro-channel calandria 3 and the manifold 4 are shown in fig. 3-4;
step S2, smearing an annular brazing filler metal 5 at a welding seam, adopting aluminum-silicon brazing filler metal or aluminum-copper brazing filler metal, starting a power supply of the lower annular induction coil 1, selecting high-power pulse adjustable alternating current for welding, wherein the power adjustable range is 20-40kW, adopting high power to enable the collecting pipe 4 to quickly reach a relatively high temperature, improving welding efficiency, enabling heat transfer to be slow in front-back heat transfer, enabling the brazing filler metal not to be quickly melted and wetted, quickly heating the front side and the back side of the collecting pipe 4, and finely adjusting the upper position and the lower position of the lower annular induction coil 1 through the induction coil position adjusting mechanism 2 for controlling a heat input position; the annular brazing filler metal 5 is observed to generate a melting phenomenon, the power supply of the lower annular induction coil 1 is immediately turned off, the power supply of the upper annular induction coil 6 is started, small-power pulse adjustable alternating current is selected for welding, the power adjustable range is 5-15kW, the small-power coil is switched to, heat is not easy to dissipate, the temperature can be increased to a small extent until the brazing filler metal is completely spread and wetted, the welding effect is better, the welding quality is better, the temperature of the annular brazing filler metal 5 can be increased to a small extent until the annular brazing filler metal 5 is observed to be completely melted and spread, the brazing filler metal is completely filled after welding, the two sides of the brazing filler metal are bright, the brazing filler metal angle is round in transition, and a pipeline is not blocked.
Example 3
The structure of this embodiment is the same as that of embodiment 1, except that the lower annular induction coil 1 is a copper tube with a diameter of 7mm, the wall thickness of the copper tube is 1.5mm, and the output power of the power supply is 35kW; the upper annular induction coil 6 is a copper pipe with the diameter of 3.5mm, the wall thickness of the copper pipe is 0.4mm, the output power of a power supply is 12kW, and circulating cooling water can be communicated inside the two induction coils so as to control the welding temperature. The thickness of the wall of the densely-micro-channel calandria 3 brazed by the embodiment is 0.25mm, the clearance fit size between the densely-micro-channel calandria 3 and the manifold 4 is 0.25mm, and the thickness of the manifold 4 is 3mm. The annular solder 5 is aluminum copper solder. The gaps between the lower annular induction coil 1 and the upper annular induction coil 6 and the collecting pipe 4 are 6mm.
Example 4
The structure of this embodiment is the same as that of embodiment 1, except that the lower annular induction coil 1 is a copper tube with a diameter of 6mm, the wall thickness of the copper tube is 1mm, and the power output is 30kW; the upper annular induction coil 6 is a copper pipe with the diameter of 3mm, the wall thickness of the copper pipe is 0.3mm, the output power of a power supply is 10kW, and circulating cooling water can be communicated inside the two induction coils so as to control the welding temperature. The thickness of the wall of the densely-micro-channel calandria 3 brazed by the embodiment is 0.2mm, the clearance fit size between the densely-micro-channel calandria 3 and the collecting pipe 4 is 0.2mm, and the thickness of the collecting pipe 4 is 3mm. The annular solder 5 is aluminum silicon solder. A gap of 5mm is left between the lower annular induction coil 1 and the upper annular induction coil 6 and the collecting pipe 4. The welding post-welding seam forming schematic diagram is shown in fig. 5, the heating is relatively uniform in the welding process, the brazing seam is completely filled, both sides of the brazing seam are very bright, the cracking defects such as cracks and unfilled parts are avoided, the brazing filler metal is well contacted with base materials at both sides, the brazing angle is round in transition, and the pipeline is not blocked. As shown in FIG. 6, the microstructure is observed to show that the test piece is in a penetration state, and the weld structure morphology of the test piece is mainly composed of eutectic structures formed by fine needle-shaped Si and alpha (Al), wherein the eutectic structures are discrete and separate into blocky primary alpha (Al) structures. And the welding is performed by local heating through the high-frequency induction coil, so that the welding quality and the welding efficiency are ensured.
Claims (10)
1. The utility model provides a be applicable to intensive microchannel induction brazing equipment of thin wall aluminium, includes upper portion annular induction coil (6), lower part annular induction coil (1) and induction coil position adjustment mechanism (2), its characterized in that: the lower annular induction coil (1) is fixedly connected with the induction coil position adjusting mechanism (2), and when in welding, the upper annular induction coil (6) is positioned right above the lower annular induction coil (1), and the induction coil position adjusting mechanism (2) can adjust the displacement of the lower annular induction coil (1) along the vertical direction; the middle of the lower annular induction coil (1) is a horizontal section, both ends of the lower annular induction coil are inclined downwards, the cross section shapes of the upper annular induction coil (6) and the lower annular induction coil (1) correspond to the cross section shape of the pre-welded collecting pipe (4), and gaps are reserved between the upper annular induction coil and the pre-welded collecting pipe (4).
2. The apparatus for thin-walled aluminum dense micro-channel induction brazing as recited in claim 1, wherein: the two ends of the lower annular induction coil (1) are U-shaped and incline downwards.
3. The apparatus for thin-walled aluminum dense micro-channel induction brazing as recited in claim 2, wherein: the induction coil position adjusting mechanism (2) comprises a screw rod (201), a supporting frame (202), a bearing (204) and a horizontal strut (205), wherein the outer ring and the inner ring of the bearing (204) are fixedly connected in an axial direction without relative displacement, and can relatively rotate along the radial direction; the middle section of support frame (202) be the opening structure of one side indent, lead screw (201) run through in upper and lower plane center of support frame (202) and rather than threaded connection, the upper end of lead screw (201) be rocker structure (203), bearing (204) be located opening structure in, the middle section of lead screw (201) with bearing (204) inner circle fixed connection, bearing (204) outer lane pass through horizontal branch (205) with U type open-ended induction coil (1) fixed connection.
4. A method for thin-walled aluminum dense micro-channel induction brazing as defined in claim 3, wherein: the lower annular induction coil (1) is a water-cooled temperature-adjustable induction coil, a copper pipe with the diameter of 4-10mm is adopted, and the wall thickness of the copper pipe is 1-3mm; the upper annular induction coil (6) is a water-cooled temperature-adjustable induction coil, and adopts a copper pipe with the diameter of 1-4mm, and the wall thickness of the copper pipe is 0.2-1mm.
5. The method for thin-walled aluminum dense micro-channel induction brazing as claimed in claim 4, wherein the method comprises the following steps: the gap is 2mm-15mm.
6. A method for induction brazing of dense micro-channels of thin-walled aluminum, obtained by a brazing apparatus according to any one of claims 1-5, characterized by the steps of:
step S1, inserting the dense micro-channel calandria (3) into a cavity of a collecting pipe (4), wherein the dense micro-channel calandria and the collecting pipe are in clearance fit; the collecting pipe (4) is arranged at the inner center positions of the upper annular induction coil (6) and the lower annular induction coil (1);
step S2, smearing annular brazing filler metal (5) at a welding seam, starting a power supply of a lower annular induction coil (1), selecting high-power pulse adjustable alternating current for welding, rapidly heating the front side and the rear side of a collecting pipe (4), and finely adjusting the upper position and the lower position of the lower annular induction coil (1) through an induction coil position adjusting mechanism (2) for controlling a heat input position; the annular brazing filler metal (5) is observed to generate a melting phenomenon, the power supply of the lower annular induction coil (1) is immediately turned off, the power supply of the upper annular induction coil (6) is started, small-power pulse adjustable alternating current is selected for welding, the temperature of the annular brazing filler metal (5) can be increased slightly until the annular brazing filler metal (5) is observed to be completely melted and spread, the brazing seam is completely filled after welding, the two sides of the brazing seam are bright, the transition of the brazing angle is round, and a pipeline is not blocked.
7. The method for thin-walled aluminum dense micro-channel induction brazing process according to claim 6, wherein the method comprises the following steps: the adjustable power range of the lower annular induction coil (1) is 20-40kW, and the adjustable power range of the upper annular induction coil (6) is 5-15kW.
8. The method for thin-walled aluminum dense micro-channel induction brazing process according to claim 6, wherein the method comprises the following steps: the wall thickness of the dense micro-channel calandria (3) ranges from 0.1 mm to 0.6mm.
9. The method for thin-walled aluminum dense micro-channel induction brazing process according to claim 6, wherein the method comprises the following steps: the wall thickness of the collecting pipe (4) is 1-5mm, and the fit clearance between the dense micro-channel calandria (3) and the collecting pipe (4) is 0.1-0.5mm.
10. The method for thin-walled aluminum dense micro-channel induction brazing process according to claim 6, wherein the method comprises the following steps: the annular brazing filler metal (5) is aluminum silicon brazing filler metal or aluminum copper brazing filler metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310667808.4A CN116652317A (en) | 2023-06-07 | 2023-06-07 | Induction brazing equipment and welding method suitable for thin-wall aluminum dense micro-channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310667808.4A CN116652317A (en) | 2023-06-07 | 2023-06-07 | Induction brazing equipment and welding method suitable for thin-wall aluminum dense micro-channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116652317A true CN116652317A (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310667808.4A Pending CN116652317A (en) | 2023-06-07 | 2023-06-07 | Induction brazing equipment and welding method suitable for thin-wall aluminum dense micro-channels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116652317A (en) |
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2023
- 2023-06-07 CN CN202310667808.4A patent/CN116652317A/en active Pending
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