CN109341393B - Separated micro-channel aluminum heat pipe blank with multiple capillary liquid absorbing cores and manufacturing method thereof - Google Patents
Separated micro-channel aluminum heat pipe blank with multiple capillary liquid absorbing cores and manufacturing method thereof Download PDFInfo
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- CN109341393B CN109341393B CN201811231991.9A CN201811231991A CN109341393B CN 109341393 B CN109341393 B CN 109341393B CN 201811231991 A CN201811231991 A CN 201811231991A CN 109341393 B CN109341393 B CN 109341393B
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- cover plate
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- 239000007788 liquid Substances 0.000 title claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 38
- 230000008569 process Effects 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 238000005245 sintering Methods 0.000 claims description 15
- 238000005219 brazing Methods 0.000 claims description 13
- 239000003832 thermite Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a separated micro-channel aluminothermic tube blank with various capillary liquid absorbing cores, which comprises a square groove-shaped upper cover plate and a lower cover plate which are tightly buckled up and down to form a sealing working medium cavity, wherein a plurality of longitudinal reinforcing ribs which isolate the sealing working medium cavity into a plurality of micro channels are arranged on the inner top wall of the upper cover plate at intervals along the width direction, liquid absorbing core structures are oppositely and fixedly arranged on the upper inner wall and the lower inner wall of each micro channel, each liquid absorbing core structure comprises a copper substrate, one surface of the copper substrate is welded and fixed with the inner wall of the micro channel, and the other surface of the copper substrate is provided with the capillary liquid absorbing core structures. The invention also discloses a manufacturing method of the separated micro-channel aluminum heat pipe blank with various capillary liquid absorbing cores. The invention avoids the problem of directly adding the capillary liquid suction core structure in the integrated porous micro-channel aluminum thermal tube shell, and the method for adding the capillary liquid suction core structure in the separated aluminum thermal tube shell is more flexible, can autonomously select the required capillary liquid suction core, and is lower in limitation of space.
Description
Technical Field
The invention relates to the technical field of thermit tube processing, in particular to a separated micro-channel aluminum heat tube blank suitable for various capillary liquid suction cores and a manufacturing method thereof.
Background
The aluminum heat pipe with the porous micro-channel is favored by people in the heat dissipation field because of the characteristics of large area, light weight, high equivalent heat conductivity, high mechanical strength, good plasticity, high safety and the like. However, aluminum metal has high chemical reactivity, and an oxide film is easy to form on the surface of the aluminum metal, so that a capillary liquid suction core structure is difficult to be added into the aluminum heat pipe, and therefore, the aluminum heat pipe with the porous micro-channel is poor in anti-gravity performance, cannot be used under the condition of reverse weight, and has a narrow application range. The prior art adds the mode of capillary wick structure mostly at direct aluminium extrusion shaping into holistic thermite pipe shell inside and adds, and the operation mode is complicated, difficult processing manufacturing.
Disclosure of Invention
In order to solve the problems, the invention provides a separated micro-channel aluminum heat pipe blank suitable for various capillary liquid absorbing cores and a manufacturing method thereof, the process is simple, and the manufactured pipe blank can be used for manufacturing micro-channel aluminum heat pipes with anti-gravity performance.
In order to achieve the above purpose of the present invention, the present invention adopts the following technical scheme:
the utility model provides a separation type microchannel aluminothermic tube blank of multiple capillary wick, includes upper cover plate and the lower apron of square groove shape that upper and lower inseparable lock formed sealed working medium chamber, upper cover plate inner top wall is provided with a plurality of vertical strengthening ribs that keep apart sealed working medium chamber into a plurality of micro-channels along width direction interval, all fixedly is provided with the wick structure relatively on the upper and lower inner wall of every micro-channel, the wick structure includes the copper base plate, the one side of copper base plate is led to and is welded fixedly with the inner wall of micro-channel, and opposite another side is provided with capillary wick structure.
Further, a plurality of grooves opposite to the reinforcing ribs are formed in the inner bottom wall of the lower cover plate at intervals along the width direction, and the tail ends of the reinforcing ribs extend into the corresponding grooves and isolate the sealing working medium cavity into a plurality of micro channels after being sealed by welding.
Further, the width and depth of the groove should be larger than the depth of the reinforcing rib embedded in the groove after the reinforcing rib is buckled with the upper cover plate and the lower cover plate.
Further, the upper cover plate and the lower cover plate are made of 1-series aluminum materials.
Further, the copper substrate is welded and fixed to the inner wall of the micro channel by the lower portion Wen Xigao.
A method for manufacturing a tube blank of a split-type micro-channel aluminum heat pipe with a plurality of capillary liquid absorbing cores, comprising the following steps:
manufacturing an upper cover plate and a lower cover plate of a shell of the separated microchannel aluminum thermal tube blank for bearing a capillary liquid suction core;
adding a required capillary wick structure on the inner surfaces of the upper cover plate and the lower cover plate respectively;
the upper cover plate and the lower cover plate are buckled and welded into a whole to form the separated micro-channel aluminum heat pipe blank of various capillary liquid absorbing cores.
Further, the upper cover plate and the lower cover plate are manufactured and molded through an aluminum extrusion process.
The separated micro-channel aluminum thermal pipe blank with multiple capillary liquid absorbing cores according to claim, wherein the needed capillary liquid absorbing core structure is added on the inner surfaces of the upper cover plate and the lower cover plate respectively, and the method specifically comprises the following steps:
after the upper cover plate and the lower cover plate are cleaned and dried, preparing a plurality of copper substrates with certain thickness according to the sizes of the upper cover plate and the lower cover plate;
sintering copper powder on one side of the surface of the copper substrate through a copper powder sintering process or a copper wire mesh sintering process to form a capillary wick structure;
after sintering, carrying out surface nickel plating treatment on one surface of the unsintered copper powder of the copper substrate, after nickel plating, continuously coating low-temperature solder paste with certain thickness on the surface, placing the copper substrate at the positions of the upper cover plate and the lower cover plate where the capillary wick structure is required to be added, and fixing the copper substrate by using a clamp, wherein the clamp does not interfere and does not form resistance to buckling after the upper cover plate and the lower cover plate are buckled;
and then the fixed upper cover plate and the fixed lower cover plate are respectively placed into a welding furnace for welding, and after the welding is finished, the clamp is not loosened, and the next process is continued.
Further, the thickness of the copper substrate is 0.4-0.6mm, and the low Wen Xigao coating thickness is 0.4-0.6mm.
Further, the split type micro-channel aluminum heat pipe blank for forming various capillary liquid absorbing cores by buckling and welding the upper cover plate and the lower cover plate into a whole specifically comprises the following steps:
filling vacuum brazing solder in the joint between the groove of the lower cover plate and the two sides of the upper cover plate and the lower cover plate, and buckling;
clamping by a clamp, and putting into a vacuum brazing furnace for welding;
simultaneously, the welding and sealing of the reinforcing ribs and the grooves are completed;
and (5) taking down the clamp after welding is finished to obtain the separated micro-channel thermite tube blank with the micro-channels of the capillary wick structure disconnected with each other.
Compared with the prior art, the invention has the following outstanding advantages:
the invention adopts the mode of firstly manufacturing the upper cover and the lower cover of the separated thermit tube shell, adding the capillary liquid suction cores on the surfaces of the upper cover plate and the lower cover plate and then welding the upper cover plate and the lower cover plate into a whole, thereby avoiding the problem that the capillary liquid suction core structure is directly added in the integrated porous micro-channel thermit tube shell;
the invention adopts the mode of embedding the reinforcing ribs with the grooves and filling welding brazing filler metal in the grooves, so that the mutual welding and sealing of all micro-channels in the tube shell are completed while the aluminum shell adopting the separation mode is welded into a whole, the non-connectivity among all the same channels is ensured, the time is saved, and the efficiency of manufacturing the micro-channel aluminum heat tube blank with the capillary liquid absorption core is improved;
the method for adding the capillary liquid absorption core is easier to observe and test the added liquid absorption core, and provides convenience for production and research.
Drawings
Fig. 1 is a schematic diagram of a lower cover plate of a tube blank of a separation type micro-channel thermite tube suitable for various capillary liquid suction cores;
fig. 2 is a schematic diagram of the upper cover plate structure of a tube blank of a split-type micro-channel aluminum heat pipe suitable for various capillary wicks;
fig. 3 is a schematic cross-sectional view of the lower cover plate with the addition of a capillary wick structure;
fig. 4 is a schematic cross-sectional view of the upper cover plate with the addition of a capillary wick structure;
fig. 5 is a schematic cross-sectional view of a split-type microchannel aluminum tube blank suitable for multiple capillary wicks after welding upper and lower cover plates together;
in the figure: 1. a lower cover plate; 2. a groove; 3, an upper cover plate; 4, reinforcing ribs; 5. low Wen Xigao; 6. a copper substrate; 7. a capillary wick structure; 8. and (5) welding the brazing filler metal by vacuum brazing.
Detailed Description
For a further understanding of the present invention, preferred embodiments of the invention are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the invention, and are not limiting of the claims of the invention.
Example 1
As shown in fig. 1 to 5, a split-type microchannel aluminothermic tube blank with multiple capillary liquid absorbing cores comprises a square groove-shaped upper cover plate 3 and a lower cover plate 1 which are tightly buckled up and down to form a sealing working medium cavity, a plurality of longitudinal reinforcing ribs 4 which isolate the sealing working medium cavity into a plurality of micro channels are arranged on the inner top wall of the upper cover plate 3 at intervals along the width direction, liquid absorbing core structures are oppositely and fixedly arranged on the upper inner wall and the lower inner wall of each micro channel, each liquid absorbing core structure comprises a copper substrate 6, one surface of the copper substrate 6 is welded and fixed with the inner wall of the micro channel, and the other surface of the copper substrate is provided with a capillary liquid absorbing core structure 7.
As shown in fig. 1, a plurality of grooves 2 with a depth of 3mm opposite to the reinforcing ribs 4 are arranged on the inner bottom wall of the lower cover plate 1 at intervals along the width direction, the grooves are wider than the reinforcing ribs 4 by 1mm and have equal spacing between two sides, and the tail ends of the reinforcing ribs 4 extend into the corresponding grooves 2 and are 0.5mm away from the bottoms of the grooves 2. The tail ends of the reinforcing ribs 4 and the grooves 2 are sealed by welding, and then the sealing working medium cavity is isolated into a plurality of micro channels.
The width and depth of the groove 2 are larger than the depth of the reinforcing ribs embedded into the groove after the reinforcing ribs 4 are buckled with the upper cover plate and the lower cover plate.
The upper cover plate 3 and the lower cover plate 1 adopt 1-series aluminum materials, so that excellent heat conduction performance is ensured.
The copper substrate 6 is welded and fixed to the inner wall of the micro-channel by the lower portion Wen Xigao.
Example two
A method for manufacturing a tube blank of a split-type micro-channel aluminum heat pipe with a plurality of capillary liquid absorbing cores, comprising the following steps:
s1, manufacturing an upper cover plate 3 and a lower cover plate 1 of a shell of a separated micro-channel thermite tube blank for bearing a capillary wick;
s2, adding a required capillary wick structure 7 on the inner surfaces of the upper cover plate 3 and the lower cover plate 1 respectively;
and S3, buckling and welding the upper cover plate 3 and the lower cover plate 1 into a whole to form a separated micro-channel thermit tube blank with various capillary liquid absorbing cores.
Specifically, the upper cover plate 3 and the lower cover plate 1 are manufactured and molded through an aluminum extrusion process.
Specifically, the adding the desired capillary wick structure 7 to the inner surfaces of the upper cover plate 3 and the lower cover plate 1 respectively specifically includes:
s21, after the upper cover plate 3 and the lower cover plate 1 are cleaned and dried, preparing a plurality of copper substrates 6 with certain thickness according to the sizes of the upper cover plate 3 and the lower cover plate 1;
s22, sintering copper powder on one side of the surface of the copper substrate 6 through a copper powder sintering process to form a capillary wick structure 7;
s23, after sintering is finished, carrying out surface nickel plating treatment on one surface of the copper substrate 6, after nickel plating is finished, continuously coating a certain thickness of low Wen Xigao on the surface, and then placing the copper substrate 6 at the position of the upper cover plate 3 and the lower cover plate 1 where the capillary wick structure 7 is required to be added and fixing the copper substrate with a clamp, wherein the clamp does not interfere and does not form resistance to buckling after the upper cover plate 3 and the lower cover plate 1 are buckled;
s24, respectively placing the fixed upper cover plate 3 and the fixed lower cover plate 1 into a welding furnace for welding, and continuing the next process without loosening a clamp after the welding is completed.
Specifically, the thickness of the copper substrate 6 is 0.5mm, and the low Wen Xigao coating thickness is 0.5mm.
Specifically, the split type micro-channel aluminum heat pipe blank for forming various capillary liquid absorbing cores by buckling and welding the upper cover plate 3 and the lower cover plate 1 into a whole specifically comprises the following steps:
s31, filling vacuum brazing solder 8 at the joint of the groove 2 of the lower cover plate 1 and the two sides of the upper cover plate 3 and the lower cover plate 1, and buckling;
s32, clamping by a clamp, and putting into a vacuum brazing furnace for welding;
s33, welding and sealing the reinforcing ribs 4 and the grooves 2 are completed at the same time;
and S34, removing the clamp after welding is finished to obtain the separated micro-channel thermite tube blank which is sintered by copper powder and is of the capillary wick structure 7 and is not connected with each other.
Since the sintering process and vacuum brazing are well known to those skilled in the art, they are not described in detail herein.
In the method for manufacturing the split-type micro-channel alumino-tube blank suitable for various capillary liquid absorbing cores, the capillary liquid absorbing core structure can be selected independently according to requirements, so that in order to illustrate the adaptability of the tube blank of the invention to various capillary liquid absorbing core structures, a specific process of adding the capillary liquid absorbing cores in the process is provided, and an embodiment is further stated.
Example III
A method for manufacturing a tube blank of a split-type micro-channel aluminum heat pipe with a plurality of capillary liquid absorbing cores, comprising the following steps:
s1, manufacturing an upper cover plate 3 and a lower cover plate 1 of a shell of a separated micro-channel thermite tube blank for bearing a capillary wick;
s2, adding a required capillary wick structure 7 on the inner surfaces of the upper cover plate 3 and the lower cover plate 1 respectively;
and S3, buckling and welding the upper cover plate 3 and the lower cover plate 1 into a whole to form a separated micro-channel thermit tube blank with various capillary liquid absorbing cores.
Specifically, the upper cover plate 3 and the lower cover plate 1 are manufactured and molded through an aluminum extrusion process.
Specifically, the adding the desired capillary wick structure 7 to the inner surfaces of the upper cover plate 3 and the lower cover plate 1 respectively specifically includes:
s21, after the upper cover plate 3 and the lower cover plate 1 are cleaned and dried, preparing a plurality of copper substrates 6 with certain thickness according to the sizes of the upper cover plate 3 and the lower cover plate 1;
s22, sintering a copper wire mesh on one side of the surface of the copper substrate 6 through a copper wire mesh sintering process to form a capillary wick structure 7;
s23, after sintering is finished, carrying out surface nickel plating treatment on one surface of the copper substrate 6, which is not sintered with a copper wire mesh, after nickel plating is finished, continuously coating a certain thickness of low Wen Xigao 5 on the surface, and then placing the copper substrate on the positions of the upper cover plate 3 and the lower cover plate 1, which are required to be added with the capillary wick structure 7, and fixing the copper substrate by using a clamp, wherein the clamp does not interfere after the upper cover plate 3 and the lower cover plate 1 are buckled and does not form resistance to buckling;
s24, respectively placing the fixed upper cover plate 3 and the fixed lower cover plate 1 into a welding furnace for welding, and continuing the next process without loosening a clamp after the welding is completed.
Specifically, the thickness of the copper substrate 6 is 0.5mm, and the low Wen Xigao coating thickness is 0.5mm.
Specifically, the split type micro-channel aluminum heat pipe blank for forming various capillary liquid absorbing cores by buckling and welding the upper cover plate 3 and the lower cover plate 1 into a whole specifically comprises the following steps:
s31, filling vacuum brazing solder 8 at the joint of the groove 2 of the lower cover plate 1 and the two sides of the upper cover plate 3 and the lower cover plate 1, and buckling;
s32, clamping by a clamp, and putting into a vacuum brazing furnace for welding;
s33, welding and sealing the reinforcing ribs 4 and the grooves 2 are completed at the same time;
and S34, removing the clamp after welding is finished to obtain the separated micro-channel thermite tube blank which is provided with the capillary wick structure 7 sintered by the copper wire mesh and is not connected with each other.
Since the sintering process and vacuum brazing are well known to those skilled in the art, they are not described in detail herein. The method for adding the capillary wick structure to the upper cover plate and the lower cover plate can be to directly process and modify the surfaces of the upper cover plate and the lower cover plate or add other materials on the surfaces.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the invention.
Claims (10)
1. The utility model provides a separation type microchannel aluminothermy tube blank of multiple capillary wick, its characterized in that includes upper cover plate (3) and lower apron (1) of square groove shape that upper and lower inseparable lock formed sealed working medium chamber, the roof is provided with a plurality of vertical strengthening ribs (4) that keep apart sealed working medium chamber into a plurality of fine passageway along width direction interval in upper cover plate (3), all relatively fixedly on the upper and lower inner wall of every fine passageway be provided with the wick structure, the wick structure includes copper base plate (6), the one side of copper base plate (6) is led to and is welded fixedly with the inner wall of fine passageway, and opposite another side is provided with capillary wick structure (7).
2. The separated microchannel aluminum tube blank with multiple capillary liquid absorbing cores according to claim 1, wherein a plurality of grooves (2) opposite to the reinforcing ribs (4) are arranged on the inner bottom wall of the lower cover plate (1) at intervals along the width direction, and the tail ends of the reinforcing ribs (4) extend into the corresponding grooves (2) to isolate the sealing working medium cavity into a plurality of micro channels after being sealed by welding.
3. The tube blank of the separation type micro-channel aluminum thermal tube with various capillary liquid absorbing cores according to claim 2, wherein the width and the depth of the groove (2) are larger than the depth of the reinforcing ribs embedded in the groove after the reinforcing ribs (4) are buckled with the upper cover plate and the lower cover plate.
4. The split microchannel thermite tube blank of multiple capillary wick according to claim 1, wherein the upper cover plate (3) and the lower cover plate (1) are made of 1-series aluminum material.
5. A split microchannel thermite tube blank of multiple capillary wicks according to claim 1 wherein the copper substrate (6) is welded to the inner walls of the microchannel by means of a lower Wen Xigao (5).
6. A method of manufacturing a split microchannel aluminum heat pipe blank for a plurality of capillary wicks according to any one of claims 1 to 5, comprising the steps of:
manufacturing an upper cover plate (3) and a lower cover plate (1) of a shell of the separated microchannel thermite tube blank for bearing a capillary wick;
the inner surfaces of the upper cover plate (3) and the lower cover plate (1) are respectively added with a required capillary wick structure (7);
the upper cover plate (3) and the lower cover plate (1) are buckled and welded into a whole to form a separated micro-channel thermite tube blank of various capillary liquid absorbing cores.
7. The manufacturing method according to claim 6, characterized in that the upper cover plate (3) and the lower cover plate (1) are manufactured and formed by an aluminum extrusion process.
8. The manufacturing method according to claim 6, wherein the adding of the desired capillary wick structure (7) to the inner surfaces of the upper cover plate (3) and the lower cover plate (1), respectively, specifically comprises:
after the upper cover plate (3) and the lower cover plate (1) are cleaned and dried, preparing a plurality of copper substrates (6) with certain thickness according to the sizes of the upper cover plate (3) and the lower cover plate (1);
copper powder is sintered on one side of the surface of the copper substrate (6) through a copper powder sintering process or a copper wire mesh sintering process to form a capillary wick structure (7);
after sintering, carrying out surface nickel plating treatment on one surface of unsintered copper powder of a copper substrate (6), after nickel plating is finished, continuously coating a certain thickness of low Wen Xigao (5) on the surface, and then placing the copper substrate at the positions of an upper cover plate (3) and a lower cover plate (1) where a capillary wick structure (7) is required to be added, and fixing the copper substrate by using a clamp, wherein the clamp does not interfere and does not form resistance to buckling after the upper cover plate (3) and the lower cover plate (1) are buckled;
and then the fixed upper cover plate (3) and the fixed lower cover plate (1) are respectively placed into a welding furnace for welding, and after the welding is finished, the clamp is not loosened, and the next process is continued.
9. The manufacturing method according to claim 8, characterized in that the copper substrate (6) has a thickness of 0.4-0.6mm and the low Wen Xigao (5) coating thickness is 0.4-0.6mm.
10. The manufacturing method according to claim 6, wherein the steps of buckling and welding the upper cover plate (3) and the lower cover plate (1) into a whole to form the split type micro-channel aluminum heat pipe blank with various capillary wicks specifically comprise the following steps:
filling vacuum brazing solder (8) at the joint of the groove (2) of the lower cover plate (1) and the two sides of the upper cover plate (3) and the lower cover plate (1) and buckling;
clamping by a clamp, and putting into a vacuum brazing furnace for welding;
simultaneously, the welding and sealing of the reinforcing ribs (4) and the grooves (2) are completed;
and (5) taking down the clamp after welding to obtain the separated micro-channel thermite tube blank with the micro-channels of the capillary wick structure (7) disconnected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231991.9A CN109341393B (en) | 2018-10-22 | 2018-10-22 | Separated micro-channel aluminum heat pipe blank with multiple capillary liquid absorbing cores and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811231991.9A CN109341393B (en) | 2018-10-22 | 2018-10-22 | Separated micro-channel aluminum heat pipe blank with multiple capillary liquid absorbing cores and manufacturing method thereof |
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| CN109341393B true CN109341393B (en) | 2023-11-21 |
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| CN112815750B (en) * | 2021-01-11 | 2022-04-01 | 东莞领杰金属精密制造科技有限公司 | Manufacturing method of vapor chamber, vapor chamber and middle frame vapor chamber |
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| CN1821701A (en) * | 2005-02-18 | 2006-08-23 | 江陵机电股份有限公司 | Heat pipe cooling system and its heat transfer connector |
| CN102019543A (en) * | 2009-09-18 | 2011-04-20 | 和硕联合科技股份有限公司 | Temperature-equalizing plate and manufacture method thereof |
| CN102519289A (en) * | 2011-12-31 | 2012-06-27 | 山东大学 | Integrated preparation technology of loop heat pipe evaporator |
| CN102901391A (en) * | 2012-10-31 | 2013-01-30 | 边树仁 | Heat pipe and manufacturing method thereof |
| CN204987987U (en) * | 2015-08-31 | 2016-01-20 | 华南理工大学 | Slot imbibition core compound with microstructured layer |
| WO2017124754A1 (en) * | 2016-01-22 | 2017-07-27 | 华南师范大学 | Ultrathin soaking plate and manufacturing method thereof |
| CN106604621A (en) * | 2017-01-23 | 2017-04-26 | 苏州天脉导热科技有限公司 | Micro-channel aluminum vapor chamber |
| CN209639577U (en) * | 2018-10-22 | 2019-11-15 | 华南理工大学 | The separate type microchannel aluminothermy pipe pipe of a variety of capillary wicks |
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