CN113441802A - Liquid cooling plate joint brazing method - Google Patents
Liquid cooling plate joint brazing method Download PDFInfo
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- CN113441802A CN113441802A CN202110815125.XA CN202110815125A CN113441802A CN 113441802 A CN113441802 A CN 113441802A CN 202110815125 A CN202110815125 A CN 202110815125A CN 113441802 A CN113441802 A CN 113441802A
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- welding
- liquid cooling
- cooling plate
- point
- joint
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- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 title claims abstract description 84
- 238000005219 brazing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 100
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 13
- 230000004907 flux Effects 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
- B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
Abstract
The invention relates to the field of welding of liquid cooling plates, and provides a liquid cooling plate joint brazing method, wherein a liquid cooling plate joint is placed on a liquid cooling plate substrate, and the center point of a positioning hole of the liquid cooling plate substrate is ensured to be superposed with the center point of the liquid cooling plate joint; under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out first welding point welding on a first connecting position of the liquid cooling plate connector and the liquid cooling plate substrate; secondly, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out second welding point welding on a second connecting position of the liquid cooling plate joint and the liquid cooling plate substrate; and finally arranging the plurality of liquid cooling plate substrates welded with the liquid cooling plate joints on a mesh belt of a brazing furnace, and then brazing in the brazing furnace. The invention has simple structure and process, does not need to attach a physically contacted workpiece and has good production efficiency. After the pre-positioning, the reliability of the pre-positioning is improved by adopting spot welding, the accurate and reliable positioning of the joint and the substrate is ensured, the spot welding is combined with the brazing, the surface between the welding head of the liquid cooling plate and the liquid cooling plate is smooth, the welding fastness is high, and the reliability is strong.
Description
Technical Field
The invention relates to the field of welding of liquid cooling plates, in particular to a liquid cooling plate joint brazing method.
Background
With the development of new energy batteries and the deep mind of environmental protection concepts, the market of electric vehicles develops rapidly, and a large amount of heat is brought in the charging and discharging process of the power battery, and the liquid cooling plate is required to absorb the heat in the battery heating element to cool the power battery, so that the normal work of the power battery is ensured. The liquid cooling plate is a key heat dissipation device of the electric automobile, and the working state of the liquid cooling plate directly affects the safety, reliability and service life of the whole machine.
However, the sealing effect of the existing liquid cooling plate before the liquid cooling plate enters and exits the water joint is not good, and the leakage of cooling liquid in the cavity of the liquid cooling plate is easily caused.
Like chinese utility model patent CN201720388507.8 a water-cooling board device with water injection well choke, the background art part discloses among the prior art, be used for the radiating water-cooling board of electronic components, be provided with water inlet and outlet in the water-cooling board main part, water inlet and delivery port are connected with the water injection well choke respectively, as shown in figure 1, need process out the screw thread respectively at the water inlet and the delivery port of water-cooling board, then process the water injection well choke, install the water injection well choke to water inlet and delivery port respectively again, and it is sealed through the sealing washer, make the procedure of water-cooling board complicated, and the sealed mode of sealing washer, after using a period, the sealing washer appears ageing easily, the phenomenon of leaking appears.
As described in the above utility model, the water inlet nozzle, the water outlet nozzle and the water cooling plate body are integrated, and the leakage at the joint of the plate body and the upper cover is avoided, so that the service life of the water cooling plate body 10 is longer. However, due to the production requirement and cost saving, the water inlet and outlet nozzles and the water cooling plate are often inconsistent in material and cannot be integrally formed, and in addition, the water inlet and outlet nozzles are complex in structure and difficult to integrally form or the forming process is high in cost.
A positioning tool is further used in the prior art to be matched with a welding water inlet and outlet connector, as shown in figure 1, a supporting plate 1 on the positioning tool supports a cover plate 2, the cover plate 2 presses a base plate 3 and a connector 4 for positioning, and the positioning tool and the base plate 3 are placed into a brazing furnace together for welding and forming after positioning. In the actual production process, because of the size cooperation has certain clearance problem, lead to easily taking place crooked or drop in welding process, lead to connecting 4 shape and position squints big, influence production efficiency and welding piece size precision, the frock need be made with high temperature resistant material in addition, like SUS316, the cost of manufacture is high, and the loading and unloading frock wastes time and energy, reduces production efficiency, increases manufacturing cost.
Disclosure of Invention
Based on the defects, the invention provides the liquid cooling plate joint brazing method which is simple in process and capable of avoiding leakage at the joint.
In order to achieve the above purpose, the invention provides the technical scheme that: a liquid cold plate joint brazing method comprises the following steps:
s1, placing a liquid cooling plate connector on a liquid cooling plate substrate to ensure that the center point of a positioning hole of the liquid cooling plate substrate is superposed with the center point of the liquid cooling plate connector;
s2, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out first welding point welding on a first connecting position of the liquid cooling plate connector and the liquid cooling plate substrate;
s3, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out second welding point welding on a second connecting position of the liquid cooling plate joint and the liquid cooling plate substrate;
and S4, arranging the plurality of liquid cooling plate substrates welded with the liquid cooling plate joints in the S3 on a mesh belt of a brazing furnace, and then brazing in the brazing furnace.
In some preferred embodiments, in step S3, an acute angle α between a line connecting the first connection point and the center point of the coldplate joint and an angle formed by the second connection point and the center point of the coldplate joint is not less than 45 degrees.
In some preferred embodiments, the first connection, the second connection, and the liquid cooling panel joint center point in the step of S3 are collinear.
In some preferred embodiments, the height of the first and second welds is 0.2-0.3 cm.
In some preferred embodiments, the welding time of the welding gun in the steps S2 and S3 is 1-3S.
In some preferred embodiments, the welding operating voltage is: 45V, and (5); welding a gun: HO-6J; welding a gun head: gun # 3.
In some preferred embodiments, the welding wire is a 4045 flux cored wire.
In some preferred embodiments, in the step S4, the brazing parameter: 575 ℃ in the first region, 580 ℃ in the second region, 580 ℃ in the third region, 610 ℃ in the fourth region, 615 ℃ in the fifth regionSix zones 620 ℃, seven zones 625 ℃, eight zones 625 ℃, nine zones 625 ℃ and ten zones 620 ℃, wherein the protective gas used in the brazing process is nitrogen, and the nitrogen flow rates are 20/60/60/60/20m respectively3/h。
Compared with the prior art, the invention has the following beneficial effects and advantages:
the invention has simple structure and process, does not need to attach a physically contacted workpiece and has good production efficiency.
The shaft shoulder is completed through the matching of the positioning hole in the liquid cooling plate and the step on the joint to perform pre-positioning, then the pre-positioning reliability is improved through spot welding, and the joint can be accurately and reliably positioned with the base plate, so that the problem that the joint falls off or the form and position deviation is large due to the positioning problem of the base plate and the joint in the brazing process is solved, the production efficiency and the product quality are improved, the spot welding and the brazing are combined, the surface between the liquid cooling plate welding head and the liquid cooling plate is smooth, the welding fastness is high, and the reliability is high.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of a positioning structure of a positioning tool and a liquid cooling plate joint in the prior art;
FIG. 2 is a schematic diagram of a liquid cooling plate structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a positioning structure of a liquid cooling plate and a liquid cooling plate joint according to an embodiment of the present invention;
in the figure: 1. a support plate; 2. a cover plate; 3, a substrate; 4. a joint; 5. cooling the liquid substrate; 6. positioning holes; 7. a liquid cooling plate joint; 8. a first connection; 9. a second connection.
Detailed Description
In order to facilitate understanding of the invention, the invention will be described in more complete detail with reference to the drawings and preferred embodiments, but the scope of the invention is not limited to the following specific embodiments.
As shown in fig. 2 and 3, a method for brazing the liquid-cooled plate joint 7 includes the following steps:
s1, placing a liquid cooling plate connector 7 on a liquid cooling plate substrate 5 to ensure that the central point of a positioning hole 6 on the liquid cooling plate substrate 5 is superposed with the central point of the liquid cooling plate connector 7, and completing convenient pre-positioning of a shaft shoulder by utilizing the matching of the positioning hole 6 on the liquid cooling plate substrate 5 and steps on the liquid cooling plate connector 7;
s2, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out first welding point welding on a first connecting position 8 between the liquid cooling plate joint 7 and the liquid cooling plate substrate 5, and the first welding point is randomly selected;
s3, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out second welding point welding on a second connecting position of the liquid cooling plate connector 7 and the liquid cooling plate substrate 5, the second welding point is not overlapped with the first welding point, and the liquid cooling plate connector 7 and the liquid cooling plate substrate are subjected to 2 times of spot welding, so that the liquid cooling plate connector 7 is prevented from being skewed or falling off in the brazing process;
and S4, arranging the plurality of liquid cooling plate substrates 5 welded with the liquid cooling plate joints 7 in the S3 on a mesh belt of a brazing furnace, and then brazing in the brazing furnace.
In this embodiment, specifically, in the step S3, an obtuse angle and an acute angle α are formed between a connection line between the first connection point and the central point of the liquid cooling board joint and between the second connection point and the central point of the liquid cooling board joint, where the acute angle α is not less than 45 degrees, so as to further improve the welding firmness of the liquid cooling board joint 7 and the liquid cooling board substrate.
In another embodiment of this embodiment, in the step S3, the center points of the first connection point 8, the second connection point, and the liquid-cooled plate joint 7 are collinear, that is, the first welding point and the second welding point are axisymmetric with respect to the diameter of the positioning hole of the liquid-cooled plate substrate, so as to increase the reliability of pre-positioning, and ensure that the joint can be accurately and reliably positioned with the substrate.
Specifically, the height of the first welding point and the second welding point is 0.2-0.3cm, the welding points at the height are not easy to generate air holes or undercut, and the first welding point and the second welding point flow smoothly without accumulation when being melted for the second brazing, so that welding stress and welding deformation are not easy to generate, and welding seam collapse and edge collapse are not easy to generate, thereby affecting the appearance attractiveness and the tightness of the product.
The special welding wire is cladded on the damaged part of the workpiece by high heat energy generated by over-micro-electricity instantaneous discharge and is firmly welded with the original base material, the welding time of the welding guns in the steps S2 and S3 is 1-3S, particularly 2S is preferred, and the welding time is short, and the welding effect is good.
The voltage size has decided the roughness of welding strength and postweld surface, and the bigger surface of voltage is rougher, and the smaller welded firmness is lower on the contrary, but on the basis of guaranteeing the welded firmness after considering later stage and brazing to combine, can form more smooth surface, welding operating voltage: 40-60V; more preferably, the welding working voltage is: 45V, selecting HO-6J as the model of the welding gun; the welding gun head adopts a No. 3 gun. More preferably, the welder parameters are: welding current 5.6A, welding frequency: 25.
furthermore, the welding wire is a flux-cored wire, the melting flux-cored wire in a plasma state is transited to the surface layer of the workpiece in a metallurgical mode, and more preferably, the welding wire is a 4045 aluminum welding wire with the diameter of 1 mm.
Specifically, in step S4, the brazing parameters: 575 ℃ in the first region, 580 ℃ in the second region, 580 ℃ in the third region, 610 ℃ in the fourth region, 615 ℃ in the fifth region, 620 ℃ in the sixth region, 625 ℃ in the seventh region, 625 ℃ in the eighth region, 625 ℃ in the ninth region and 620 ℃ in the tenth region, the protective gas used in the brazing process is nitrogen, and the nitrogen flow rates are 20/60/60/60/20m3H is used as the reference value. Under the protection of nitrogen, the product is prevented from being oxidized by oxygen in the air. In order to improve the brazing quality and make the welding point smooth, 10 temperature zones are set, and a gradient temperature field with the brazing temperature from low to high to low is formed.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (8)
1. A liquid cooling plate joint brazing method is characterized by comprising the following steps: the method comprises the following steps:
s1, placing a liquid cooling plate connector on a liquid cooling plate substrate to ensure that the center point of a positioning hole of the liquid cooling plate substrate is superposed with the center point of the liquid cooling plate connector;
s2, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out first welding point welding on a first connecting position of the liquid cooling plate connector and the liquid cooling plate substrate;
s3, under the work of the medium frequency point welding machine, a welding gun is used for melting welding flux to carry out second welding point welding on a second connecting position of the liquid cooling plate joint and the liquid cooling plate substrate;
and S4, arranging the plurality of liquid cooling plate substrates welded with the liquid cooling plate joints in the S3 on a mesh belt of a brazing furnace, and then brazing in the brazing furnace.
2. A liquid cold plate joint brazing method according to claim 1, wherein: in the step S3, an acute angle α between a connecting line between the first connecting point and a central point of the liquid-cooled plate joint and an angle formed by the second connecting point and the central point of the liquid-cooled plate joint is not less than 45 degrees.
3. A liquid cold plate joint brazing method according to claim 1, wherein: the first joint, the second joint and the liquid cooling plate joint center point in the step of S3 are collinear.
4. A liquid cold plate joint brazing method according to claim 1, wherein: the height of the first welding point and the second welding point is 0.2-0.3 cm.
5. A liquid cold plate joint brazing method according to claim 1, wherein: the welding time of the welding gun in the steps S2 and S3 is 1-3S.
6. A liquid cold plate joint brazing method according to claim 1, wherein: welding working voltage: 45V, and (5); welding a gun: HO-6J; welding a gun head: gun # 3.
7. A liquid cold plate joint brazing method according to claim 1, wherein: the welding wire is 4045 aluminum welding wire, and the diameter is 1 mm.
8. A liquid cold plate joint brazing method according to claim 1, wherein: in the step S4, brazing parameters: 575 ℃ in the first region, 580 ℃ in the second region, 580 ℃ in the third region, 610 ℃ in the fourth region, 615 ℃ in the fifth region, 620 ℃ in the sixth region, 625 ℃ in the seventh region, 625 ℃ in the eighth region, 625 ℃ in the ninth region and 620 ℃ in the tenth region, the protective gas used in the brazing process is nitrogen, and the nitrogen flow rates are 20/60/60/60/20m3/h。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110815125.XA CN113441802A (en) | 2021-07-19 | 2021-07-19 | Liquid cooling plate joint brazing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110815125.XA CN113441802A (en) | 2021-07-19 | 2021-07-19 | Liquid cooling plate joint brazing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121891A (en) * | 2022-07-20 | 2022-09-30 | 飞荣达科技(江苏)有限公司 | Method for fixing soldered joint |
| CN115178827A (en) * | 2022-08-19 | 2022-10-14 | 北京航空航天大学 | Spot welding positioning method for vacuum brazing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240477A (en) * | 2013-05-22 | 2013-08-14 | 江苏嘉和热系统股份有限公司 | Anti-rotating condenser welding process |
| CN203471152U (en) * | 2013-10-02 | 2014-03-12 | 荆州市南湖机械总厂 | Aluminum shell welded through aluminum brazing |
| US20150165218A1 (en) * | 2013-12-12 | 2015-06-18 | Heraeus Precious Metals Gmbh & Co. Kg | Direct integration of feedthrough to implantable medical device housing using a gold alloy |
| CN109296835A (en) * | 2018-11-30 | 2019-02-01 | 常州常发制冷科技有限公司 | Plug-in type sealed pipe fitting and its installation method |
| CN109357098A (en) * | 2018-11-30 | 2019-02-19 | 常州常发制冷科技有限公司 | Insert seal pipe fitting and its installation method |
| CN109396587A (en) * | 2018-12-17 | 2019-03-01 | 扬州嘉和新能源科技有限公司 | A kind of method for welding of water-cooled plate |
| CN110193545A (en) * | 2019-05-30 | 2019-09-03 | 南京加特源热能科技有限公司 | A kind of heat dissipation liquid cooling plate and its processing method |
| CN209357878U (en) * | 2019-01-08 | 2019-09-06 | 重庆宏美制冷设备有限公司 | A kind of liquid cooling plate joint connecting structure |
-
2021
- 2021-07-19 CN CN202110815125.XA patent/CN113441802A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240477A (en) * | 2013-05-22 | 2013-08-14 | 江苏嘉和热系统股份有限公司 | Anti-rotating condenser welding process |
| CN203471152U (en) * | 2013-10-02 | 2014-03-12 | 荆州市南湖机械总厂 | Aluminum shell welded through aluminum brazing |
| US20150165218A1 (en) * | 2013-12-12 | 2015-06-18 | Heraeus Precious Metals Gmbh & Co. Kg | Direct integration of feedthrough to implantable medical device housing using a gold alloy |
| CN109296835A (en) * | 2018-11-30 | 2019-02-01 | 常州常发制冷科技有限公司 | Plug-in type sealed pipe fitting and its installation method |
| CN109357098A (en) * | 2018-11-30 | 2019-02-19 | 常州常发制冷科技有限公司 | Insert seal pipe fitting and its installation method |
| CN109396587A (en) * | 2018-12-17 | 2019-03-01 | 扬州嘉和新能源科技有限公司 | A kind of method for welding of water-cooled plate |
| CN209357878U (en) * | 2019-01-08 | 2019-09-06 | 重庆宏美制冷设备有限公司 | A kind of liquid cooling plate joint connecting structure |
| CN110193545A (en) * | 2019-05-30 | 2019-09-03 | 南京加特源热能科技有限公司 | A kind of heat dissipation liquid cooling plate and its processing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121891A (en) * | 2022-07-20 | 2022-09-30 | 飞荣达科技(江苏)有限公司 | Method for fixing soldered joint |
| CN115178827A (en) * | 2022-08-19 | 2022-10-14 | 北京航空航天大学 | Spot welding positioning method for vacuum brazing |
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Application publication date: 20210928 |