CN211387264U - Brazing equipment in cooling plate closed cavity under inert gas protection environment - Google Patents
Brazing equipment in cooling plate closed cavity under inert gas protection environment Download PDFInfo
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- CN211387264U CN211387264U CN201922419533.4U CN201922419533U CN211387264U CN 211387264 U CN211387264 U CN 211387264U CN 201922419533 U CN201922419533 U CN 201922419533U CN 211387264 U CN211387264 U CN 211387264U
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- nitrogen
- brazing
- cooling plate
- furnace
- chain conveyor
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- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 238000005219 brazing Methods 0.000 title claims abstract description 46
- 239000011261 inert gas Substances 0.000 title abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 59
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 50
- 230000017525 heat dissipation Effects 0.000 claims abstract description 43
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000007664 blowing Methods 0.000 claims description 19
- 239000004411 aluminium Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model provides a brazing device in a cooling plate closed cavity under the inert gas protection environment, which comprises a drying preheating furnace, a brazing furnace and a cooling chamber, chain conveyor and automatic nitrogen deoxidization mechanism that fills, stoving preheater and cooling furnace set up the both ends at the stove of brazing, treat that aluminium matter heat dissipation cooling plate work piece card is fixed on chain conveyor, chain conveyor passes from stoving preheater, brazing stove and cooling chamber are middle, preheat the kiln, the exit of brazing stove and cooling chamber is provided with thermal-insulated heat preservation curtain, automatic nitrogen deoxidization mechanism that fills sets up the both sides face at chain conveyor, automatic nitrogen deoxidization mechanism that fills blows moves and aims at the inside cavity of aluminium matter heat dissipation cooling plate work piece along the automatic removal of aluminium matter heat dissipation cooling plate work piece of following of nitrogen nozzle, the utility model discloses an equipment and technology have degree of automation height, increase substantially the yield, have fine spreading value.
Description
Technical Field
The utility model belongs to the technical field of the welding technique and specifically relates to a cooling plate seals intracavity brazing equipment under inert gas protected environment.
Background
The closed cavity of the aluminum radiating and cooling plate is a heat exchanger of gas, water or other cooling medium fluid, and the aluminum radiating and cooling plate has the characteristics of a structure of an expanded surface, a cooling channel with a smaller equivalent diameter, a rib surface which is beneficial to enhancing convection heat transfer and the like, so that the heat transfer coefficient is higher. As an actuator of the cooling system, the aluminum heat dissipation cooling plate can effectively realize efficient cooling of the power device, the printed board assembly and the electronic chassis. Therefore, aluminum heat sink cooling plates have found wide application in thermal management technology for electronic devices. Because the heat conductivity coefficient and specific heat of the liquid are both larger than those of air, the heat resistance of each related heat exchange link can be greatly reduced, and the cooling efficiency is improved, so that the liquid cooling by utilizing the aluminum heat dissipation cooling plate is a better cooling mode, and the aluminum heat dissipation cooling plate is adopted for cooling the transmitting tubes of a plurality of high-power transmitters.
With the gradual increase of the heat power of electronic equipment, the aluminum heat dissipation cooling plate flow channel is also developed to be complicated and micronized. The factors of the aluminum heat dissipation cooling plate such as increased complexity, improved pressure resistance, and strict environmental requirements put higher demands on the subsequent manufacturing of the aluminum heat dissipation cooling plate. The narrow-channel aluminum heat dissipation cooling plate is densely distributed in internal flow channels and is separated by various support ribs, the sectional area of the flow channels needs to be increased for improving the heat dissipation efficiency, the increase of the sectional area of the flow channels compresses the width size of ribs welded on the aluminum heat dissipation cooling plate, and the width of the ribs is only 1-3mmAnd (4) right. The mechanical property and the heat conduction property are comprehensively considered, and the aluminum heat dissipation cooling plate is designed and selected from heat-treatable strengthened aluminum alloy. Al is easily formed due to oxygen2O3The oxide film has a melting point as high as 2050 ℃, and even if the aluminum alloy subjected to surface treatment is welded quickly, the oxide film cannot be generated again in the operation process, and the oxide film can seriously influence the welding quality of the aluminum heat dissipation cooling plate, so that the welding dew point must be strictly controlled, the brazing atmosphere is provided, and the generation of HF is reduced as much as possible. When an aluminum heat dissipation cooling plate workpiece enters a heating furnace for brazing, if the oxygen content in the furnace is higher, the oxidation phenomenon is serious after the aluminum heat dissipation cooling plate workpiece is welded out, and the yield of the aluminum heat dissipation cooling plate workpiece is low, so the oxygen content in the furnace and a closed cavity of the heat dissipation cooling plate must be controlled. After the aluminum cooling plate workpiece is dried, the atmosphere in the aluminum cooling plate cavity is complex, and oxygen and trace water vapor in the air can affect the welding quality, so that the welding process can not only perform oxygen-free protection on the external environment of the cooling plate, but also perform oxidation-resistant protection by filling nitrogen into the closed cavity of the aluminum cooling plate. At present, no good method is available for effectively solving the problem of high-quality and high-qualification-rate welding of aluminum heat dissipation cooling plates.
Disclosure of Invention
The utility model aims at providing a cooling plate seals intracavity brazing equipment under inert gas protects environment.
The invention aims to realize the following mode, the equipment structure comprises a drying preheating furnace, a brazing furnace, a cooling chamber, a chain conveyor and an automatic nitrogen-filling and oxygen-removing mechanism, wherein the drying preheating furnace and the cooling furnace are arranged at two ends of the brazing furnace, workpieces of aluminum heat-dissipation cooling plates to be welded are clamped on the chain conveyor, the chain conveyor penetrates through the drying preheating furnace, the brazing furnace and the cooling chamber, heat-insulating curtains are arranged at inlets and outlets of the preheating drying furnace, the brazing furnace and the cooling chamber, the automatic nitrogen-filling and oxygen-removing mechanism is arranged at two side surfaces of the chain conveyor, and nitrogen-blowing nozzles of the automatic nitrogen-filling and oxygen-removing mechanism automatically move along with the workpieces of the aluminum heat-dissipation cooling plates and align to an inner cavity of the workpieces of the aluminum heat-dissipation cooling plates.
Brazing equipment, automatic nitrogen filling deoxidization mechanism is responsible for by nitrogen gas, lift pneumatic cylinder, rack and servo motor constitute, nitrogen gas is responsible for and is set up nitrogen blowing deoxidization nozzle, the jetting direction of nitrogen blowing deoxidization nozzle is relative with a medium exit of aluminium matter heat dissipation cooling plate work piece, lift pneumatic cylinder is linked to the below that nitrogen gas is responsible for, lift pneumatic cylinder's bottom is linked with the rack, the bottom of rack is provided with drive gear, drive gear is connected with servo motor's power take off shaft, servo motor and lift pneumatic cylinder's control valve pass through data line and singlechip controller link.
The brazing furnace of the brazing equipment consists of a furnace body and a hearth, wherein a heat-insulating layer is arranged outside the hearth, and heat-insulating curtains are arranged at an inlet and an outlet of the hearth.
The utility model has the advantages that: the automatic intelligentization is realized, the labor intensity of workers is greatly reduced, the production efficiency is improved, and the yield is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus;
FIG. 2 is a schematic plan view of an aluminum heat sink cooling plate workpiece;
fig. 3 is a left-side structural schematic diagram of the automatic nitrogen-filling and oxygen-removing mechanism.
Description of reference numerals: the device comprises a chain conveyor 1, an aluminum heat-dissipation cooling plate 2, a preheating drying furnace 3, a lifting pneumatic cylinder 4, a nitrogen-blowing oxygen-removing nozzle 5, a nitrogen main pipe 6, a gear 7, a rack 8, a servo motor 9, a brazing hearth 10, a heat-insulating layer 11, a brazing furnace 12, a liquid inlet 13, a seam welding part 14, a liquid outlet 15, a heat-insulating curtain 16 and a cooling chamber 17.
Detailed Description
The brazing equipment in the closed cavity of the cooling plate in the inert gas protection environment of the present invention is described in detail below with reference to the attached drawings.
The equipment structure comprises a drying preheating furnace 3, a brazing furnace, a cooling chamber 17, a chain conveyor 1 and an automatic nitrogen-filling and oxygen-removing mechanism, wherein the drying preheating furnace 3 and the cooling furnace 17 are arranged at two ends of the brazing furnace, aluminum heat-dissipation cooling plate workpieces 2 to be brazed are clamped on the chain conveyor 1, the chain conveyor 1 penetrates through the drying preheating furnace 3, the brazing furnace and the cooling chamber 17, heat-insulating and heat-preserving curtains 16 are arranged at inlets and outlets of the preheating drying furnace 3, the brazing furnace and the cooling chamber 17, the automatic nitrogen-filling and oxygen-removing mechanism is arranged on two side faces of the chain conveyor 1, and nitrogen-blowing and oxygen-removing nozzles 5 of the automatic nitrogen-filling and oxygen-removing mechanism automatically move along with the aluminum heat-dissipation cooling plate workpieces 2 and aim at an inner cavity of the aluminum heat-dissipation cooling plate workpieces 2.
Brazing equipment, automatic nitrogen filling deoxidization mechanism is responsible for 6 by nitrogen, lifting pneumatic cylinder 4, rack 8 and servo motor 9 are constituteed, nitrogen is responsible for and is set up nitrogen blowing deoxidization nozzle 5 on 6, the jetting direction of nitrogen blowing deoxidization nozzle 5 is relative with a medium exit of aluminium matter heat dissipation cooling plate work piece 2, lifting pneumatic cylinder 4 is linked to the below that nitrogen is responsible for 6, lifting pneumatic cylinder 4's bottom is linked with rack 8, rack 8's bottom is provided with drive gear 7, drive gear 7 is connected with servo motor 9's power take off shaft, servo motor 9 and lifting pneumatic cylinder 4's control valve passes through data line and singlechip controller chain joint.
The brazing furnace of the brazing equipment consists of a furnace body 12 and a hearth 10, wherein a heat-insulating layer 11 is arranged outside the hearth 10, and heat-insulating curtains 16 are arranged at an inlet and an outlet of the hearth 10.
Examples
The brazing process of the brazing equipment comprises the following steps:
firstly, a preparation procedure: the front welding process of the aluminum radiating and cooling plate workpiece is as follows: uniformly coating brazing flux and brazing flux on the welding seam part of the aluminum radiating and cooling plate workpiece for later use;
secondly, drying and preheating: placing an aluminum heat dissipation cooling plate workpiece in a fixed clamping groove on a chain conveyor, and sending the aluminum heat dissipation cooling plate workpiece into a drying and preheating furnace for drying by the chain conveyor, wherein the drying time is controlled to be 5-8 minutes, and the drying and preheating temperature is controlled to be 100-150 ℃;
thirdly, nitrogen blowing and oxygen removing: an aluminum heat dissipation cooling plate workpiece enters a brazing furnace after passing through a drying preheating furnace, a nitrogen main pipe of an automatic nitrogen-filling and oxygen-removing mechanism is put down by a lifting pneumatic cylinder, a nitrogen-blowing and oxygen-removing nozzle is aligned to the inner cavity of the aluminum heat dissipation cooling plate workpiece from a liquid inlet or a liquid outlet of the aluminum heat dissipation cooling plate workpiece and blows nitrogen, a servo motor drives a rack to drive the nitrogen main pipe to follow nitrogen blowing and oxygen removing from right to left according to the advancing speed and the advancing direction of a chain conveyor, nitrogen and other mixed gas are discharged from the other pipe orifice of the aluminum heat dissipation cooling plate workpiece after oxygen removing, and after 1-3 minutes of nitrogen blowing and oxygen removing, the nitrogen main pipe of the automatic nitrogen-filling and oxygen-removing mechanism is lifted up again by the lifting pneumatic cylinder, the nitrogen-blowing and oxygen-removing nozzle is lifted up upwards, the servo motor rapidly drives the rack to move right through the gear, and the lifting pneumatic cylinder puts down the nitrogen main pipe again to enable the nitrogen-blowing and oxygen-removing nozzle to be aligned to the inner cavity of the liquid inlet or the liquid outlet of the next group of aluminum heat-dissipation cooling plate workpieces for carrying out nitrogen-blowing and oxygen removal along with the nitrogen-;
fourthly, brazing procedure: sending the aluminum heat dissipation cooling plate workpiece subjected to nitrogen blowing and oxygen removal into a high-temperature region of a brazing furnace by a chain conveyor in an oxygen-free environment, controlling the brazing temperature at 580-613 ℃, melting brazing materials and infiltrating the brazing materials into a welding line of the aluminum heat dissipation cooling plate workpiece, and controlling the brazing time at 2.5 minutes;
and fifthly, after the brazing is finished, the aluminum heat dissipation cooling plate workpiece is slowly conveyed into the cooling chamber by the chain conveyor, is cooled to the room temperature after 2-5 minutes and then is conveyed out of the cooling chamber by the chain conveyor, and the aluminum heat dissipation cooling plate workpiece is conveyed from the top to the bottom of the chain conveyor by a robot hand and is conveyed into an inspection process and a packaging process.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The equipment is characterized in that the equipment structure comprises a drying preheating furnace, a brazing furnace, a cooling chamber, a chain conveyor and an automatic nitrogen-filling and oxygen-removing mechanism, wherein the drying preheating furnace and the cooling furnace are arranged at two ends of the brazing furnace, a workpiece of the cooling plate for aluminum heat dissipation to be welded is clamped on the chain conveyor, the chain conveyor penetrates through the drying preheating furnace, the brazing furnace and the cooling chamber, heat-insulating curtains are arranged at inlets and outlets of the preheating drying furnace and the cooling chamber, the automatic nitrogen-filling and oxygen-removing mechanism is arranged on two side faces of the chain conveyor, and a nitrogen-blowing nozzle of the automatic nitrogen-filling and oxygen-removing mechanism automatically moves along with the workpiece of the aluminum heat dissipation cooling plate and aims at an inner cavity of the workpiece of the aluminum heat dissipation cooling plate.
2. The brazing equipment according to claim 1, wherein the automatic nitrogen-filling and oxygen-removing mechanism consists of a nitrogen main pipe, a lifting pneumatic cylinder, a rack and a servo motor, a nitrogen-blowing and oxygen-removing nozzle is arranged on the nitrogen main pipe, the blowing direction of the nitrogen-blowing and oxygen-removing nozzle is opposite to a medium inlet and a medium outlet of the aluminum heat-dissipation cooling plate workpiece, the lifting pneumatic cylinder is connected below the nitrogen main pipe, the bottom of the lifting pneumatic cylinder is connected with the rack, a driving gear is arranged at the bottom of the rack, the driving gear is connected with a power output shaft of the servo motor, and the servo motor and a control valve of the lifting pneumatic cylinder are connected with a single chip microcomputer controller through data.
3. The brazing equipment according to claim 1, wherein the brazing furnace is composed of a furnace body and a hearth, an insulating layer is arranged outside the hearth, and heat insulating curtains are arranged at an inlet and an outlet of the hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419533.4U CN211387264U (en) | 2019-12-27 | 2019-12-27 | Brazing equipment in cooling plate closed cavity under inert gas protection environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419533.4U CN211387264U (en) | 2019-12-27 | 2019-12-27 | Brazing equipment in cooling plate closed cavity under inert gas protection environment |
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| Publication Number | Publication Date |
|---|---|
| CN211387264U true CN211387264U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922419533.4U Active CN211387264U (en) | 2019-12-27 | 2019-12-27 | Brazing equipment in cooling plate closed cavity under inert gas protection environment |
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| CN (1) | CN211387264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840590A (en) * | 2024-03-07 | 2024-04-09 | 成都天成电科科技有限公司 | Method for protecting inner cavity chip during laser re-welding and laser re-welding system |
| CN117840590B (en) * | 2024-03-07 | 2024-06-04 | 成都天成电科科技有限公司 | Method for protecting inner cavity chip during laser re-welding and laser re-welding system |
-
2019
- 2019-12-27 CN CN201922419533.4U patent/CN211387264U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840590A (en) * | 2024-03-07 | 2024-04-09 | 成都天成电科科技有限公司 | Method for protecting inner cavity chip during laser re-welding and laser re-welding system |
| CN117840590B (en) * | 2024-03-07 | 2024-06-04 | 成都天成电科科技有限公司 | Method for protecting inner cavity chip during laser re-welding and laser re-welding system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 271411 office building of Haili auto parts Science Park, middle section of Panlongshan Avenue, economic development zone, Ningyang County, Tai'an City, Shandong Province Patentee after: Shandong Xingneng Thermal Energy Technology Co.,Ltd. Country or region after: China Address before: 271411 office building of Haili auto parts Science Park, middle section of Panlongshan Avenue, economic development zone, Ningyang County, Tai'an City, Shandong Province Patentee before: Shandong Haili Tongchuang Cooling Technology Development Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |