CN101726205A - Method for manufacturing flat plate type heat pipe - Google Patents
Method for manufacturing flat plate type heat pipe Download PDFInfo
- Publication number
- CN101726205A CN101726205A CN200810305183.2A CN200810305183A CN101726205A CN 101726205 A CN101726205 A CN 101726205A CN 200810305183 A CN200810305183 A CN 200810305183A CN 101726205 A CN101726205 A CN 101726205A
- Authority
- CN
- China
- Prior art keywords
- flat plate
- plate heat
- heat tube
- metal powder
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000011049 filling Methods 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 35
- 210000001161 mammalian embryo Anatomy 0.000 claims description 23
- 238000005238 degreasing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000004227 thermal cracking Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 239000003570 air Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
-
- 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
- F28D15/0233—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 the conduits having a particular shape, e.g. non-circular cross-section, annular
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49353—Heat pipe device making
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)
- Powder Metallurgy (AREA)
Abstract
The invention provides a method for manufacturing a flat plate type heat pipe. The method comprises the following steps of: providing a mould comprising a first mould cavity and a plurality of second mould cavities communicated with the first mould cavity; providing a bi-color moulding injection machine provided with injection systems with two independent directions; providing first metallic powder and second metallic powder; providing a plurality of disappearing filling bodies and placing the disappearing filling bodies in the first mould cavity of the mould; injecting the first metallic powder and the second metallic powder in the first mould cavity and the second mould cavities of the mould from the injection systems in different directions so as to make the second metallic powder completely fill the holes of the disappearing filling bodies and surround the disappearing filling bodies, and make the first metallic powder fill the first mould cavity and the second mould cavities to form a raw blank; removing the filling bodies from the inside of the raw blank to form a brown blank the inside of which is provided with a plurality of accommodating cavities; and placing the brown blank in a sintering furnace, and performing the sintering process and the post-treatment process of the brown blank to obtain the flat plate type heat pipe, wherein the metallic powder is bonded to form a continuous outer cavity of the heat pipe and a plurality of radiator fins extended from the side of the outer cavity.
Description
Technical field
The present invention relates to the manufacture method of a heat pipe, be meant a kind of manufacture method of flat plate heat tube especially.
Background technology
At present industry generally adopts heat pipe to solve the high density heat dissipation problem of high-speed computer, as heat pipe, loop hot-pipe and flat plate heat tube products such as (Vapor Chamber).
The operation principle of flat plate heat tube is identical with conventional heat pipe, because of it has the heat transfer area bigger than conventional heat pipe, and meets the high practical value of " light, thin, short, little ", and is widely applied on the electronic product of large-scale radiating surface.
General flat plate heat tube has with a upper cover plate of punching press processing procedure preparation, a lower cover that cooperates with upper cover plate and the capillary structure between this upper and lower cover plate.This upper and lower cover plate links into an integrated entity by welding manner.Some fin are fixed on the upper cover plate by the mode of welding or bonding, are dispersed in the surrounding air in order to the heat with flat plate heat tube.Yet the thermal resistance between the upper cover plate of fin and flat plate heat tube is bigger, and so, the heat dispersion of flat plate heat tube is bad.
Summary of the invention
In view of this, be necessary to provide the manufacture method of the good flat plate heat tube of a kind of heat dispersion.
A kind of manufacture method of flat plate heat tube may further comprise the steps:
(1) provides a mould, comprise one first die cavity and some second die cavities that are communicated with first die cavity with cavity;
(2) provide a double-colored moulding ejaculator, this dual-color forming ejaculator has the injecting systems of two kinds of independent, direction;
(3) provide first metal powder and second metal powder;
(4) provide some deorienting obturators, and described obturator is placed mould first die cavity;
(5) in regular turn the injecting systems injection via different directions of first metal powder and second metal powder is entered in first, second die cavity of mould, make the hole of the second metal powder complete filling deorienting obturator and surround the deorienting obturator, first metal powder is filled first, second die cavity to form living embryo;
(6) described living embryo is removed the spontaneous embryo of deorienting obturator inside via chemical degreasing or thermal cracking degreasing process and form the brown embryo that inside has some host cavities;
(7) brown embryo is placed sintering furnace impose sintering process and post-treatment process respectively and obtain flat plate heat tube, the described first metal powder bond and some fin of forming the continuous outer chamber of flat plate heat tube and extending from described outer chamber one side.
Compared with prior art, the fin and the outer chamber of flat plate heat tube of the present invention are one-body molded, and the thermal resistance between fin and outer chamber is little, thereby make fin absorb the heat of exocoel fast and be dispersed in the surrounding environment.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Description of drawings
Fig. 1 is the schematic diagram that the obturator of first embodiment of the invention middle plateform formula heat pipe is positioned at mould.
Fig. 2 is the cutaway view that the flat plate heat tube among Fig. 1 is given birth to embryo.
Fig. 3 is the cutaway view of the brown embryo of flat plate heat tube among Fig. 1.
Fig. 4 is the cutaway view of the brown embryo of second embodiment of the invention middle plateform formula heat pipe.
Fig. 5 is the schematic diagram of third embodiment of the invention middle plateform formula heat pipe radiating fin.
Fig. 6 is the schematic diagram of fourth embodiment of the invention middle plateform formula heat pipe radiating fin.
Fig. 7 is the schematic diagram of fifth embodiment of the invention middle plateform formula heat pipe radiating fin.
Fig. 8 is the schematic diagram of sixth embodiment of the invention middle plateform formula heat pipe radiating fin.
Fig. 9 is the schematic diagram of seventh embodiment of the invention middle plateform formula heat pipe radiating fin.
The specific embodiment
Fig. 1 is to the flat plate heat tube 10 that Figure 3 shows that first embodiment of the invention.Flat plate heat tube 10 utilizes the powder ejection forming technique to make, concrete steps are as follows: (1) provides a mould 90, the second some die cavity 93 that this mould 90 has first die cavity 91 of a cuboid and is positioned at first die cavity, 91 tops and is communicated with it, is provided with at interval, the cuboid of sky in each second die cavity 93 is, first, second die cavity 91,93 common interior shapes that form are suitable with the appearance and size of flat plate heat tube; (2) provide a double-colored moulding ejaculator (figure does not show), this dual-color forming ejaculator has the injecting systems of two kinds of independent, direction; (3) (first metal powder of m (figure does not show) and another kind of particle size are 50～150 (second metal powders of m (figure does not show) to provide a kind of particle size to be 5～90; (4) provide deorienting obturator 30 some cuboids, that be formed with some holes that run through, and with these deorienting obturator 30 evenly spaced first die cavities 91 that place mould 90; (5) in regular turn the injecting systems injection via different directions of first metal powder and second metal powder is entered in first, second die cavity 91,93 of mould 90, make the hole of the second metal powder complete filling deorienting obturator 30 and surround deorienting obturator 30, first metal powder is filled first, second die cavity 91,93 to form living embryo; (6) this being given birth to embryo removes deorienting obturator 30 spontaneous embryo inside via chemical degreasing or thermal cracking degreasing process and forms the brown embryo that inside has the host cavity 15 of some cuboids; (7) brown embryo is placed sintering furnace impose sintering process respectively and the host cavity 15 of brown embryo is vacuumized, annotates hydraulic fluid, degasification, fixed length, seals and surface heat is handled and obtained the flat plate heat tube 10 of first embodiment of the invention.
Above-mentioned deorienting obturator 30 is macromolecular material or wax-based material, its role is to by removing in chemical reaction or the spontaneous embryo of thermal cracking mode, with the host cavity 15 that forms brown embryo.
The metal powder of varying particle size size, under identical sintering temperature condition, more little its radius of curvature of metal powder particle is more little, the activation energy of particle surface is high more, thereby the densified speed that is manifested after the granule metal powder bond is very fast.Therefore, under identical sintering temperature, the first metal powder bond and form the continuous outer chamber 11 of middle plateform formula heat pipe of the present invention 10 densifications and from the vertically extending fin 13 of outer chamber 11 1 sides, and the second metal powder bond forms and is positioned at outer chamber capillary structures 14 11 inner surfaces, continuous, mushy.These fin 13 are the rectangular lamellar body of lengthwise, and extend along the length direction of flat plate heat tube 10.Described host cavity 15 is positioned at the middle part of capillary structure 14.After giving birth to embryo process chemical degreasing or thermal cracking degreasing and agglomeration, form and the capillary structure porous that two ends are connected about in the of 14, columned support column 17 by the second metal powder bond between the two adjacent host cavities 15.These support columns 17 support the two ends up and down of outer chamber 11, make flat plate heat tube 10 have suitable intensity and undergo phase transition the steam pressure from inside to outside that turns the time spent generation into to overcome it, and are intact with the face shaping of guaranteeing flat plate heat tube 10.The porosity communication of the hole of the inside of these porous support columns 17 and capillary structure 14.Because these support columns 17 link to each other with capillary structure 14 upper and lower sides, condensed fluid can reflux along support column 17, has shortened the return flow path of condensed fluid.
Because the flat plate heat tube 10 of present embodiment is one-body molded, fin 13 is made for same material with outer chamber 11, and thermal resistance is less each other, can absorb the heat of outer chamber 11 fast, and these heats are dispersed in the ambient air, so that outer chamber 11 is accelerated cooling.
Please consult Fig. 4 simultaneously, schematic diagram for the flat plate heat tube 20 of second embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: the deorienting obturator (figure shows) that is positioned in the mould 90 is three big end down terrace with edge shapes, thereby the support column 27 that forms is three big end down terrace with edge shapes, and the host cavity 25 that its inner air feed stream is passed through is presented greatly, following little three terrace with edge shapes.
Please consult Fig. 5 simultaneously, schematic diagram for flat plate heat tube 30 fin 33 of third embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: the interior empty circular cone that second die cavity 93 of mould 90 is provided with for some even intervals, so, make the first metal sintered back of filling in it form some big down, go up little coniform fin 33.The end that these fin 33 contacts area are big is sticked on the outer chamber 31 of flat plate heat tube 30, absorbs the heat of outer chamber 31 fast.
Please consult Fig. 6 simultaneously, schematic diagram for flat plate heat tube 40 fin 43 of fourth embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: the interior hollow round column that second die cavity 93 of mould 90 is provided with for some even intervals, so, make the first metal sintered back of filling in it form some cylindric fin 43 that matrix is arranged that are.
Please consult Fig. 7 simultaneously, schematic diagram for flat plate heat tube 50 fin 53 of fifth embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: the interior empty cuboid that second die cavity 93 of mould 90 is provided with for some even intervals, so, make the first metal sintered back of filling in it form some fin 53 that are matrix arranged rectangular body.The distance at interval is bigger between these fin 53, can utilize its angle to change the air motion direction that changes 53 of fin.
Please consult Fig. 8 simultaneously, schematic diagram for flat plate heat tube 60 fin 63 of sixth embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: second die cavity 93 of mould 90 for some even intervals be provided with interior empty prismatic, so, make the first metal sintered back of filling in it form some fin 63 that are the prism-shaped of matrix arrangement.Interval between these fin 63 is less, is fit to apply in the unidirectional flow field, changes the air motion direction that changes 63 of fin to utilize its angle.
Please consult Fig. 9 simultaneously, schematic diagram for flat plate heat tube 70 fin 73 of seventh embodiment of the invention, its manufacture method and manufacture process are identical with first embodiment, the difference of itself and first embodiment is: the interior empty round platform that second die cavity 93 of mould 90 is provided with for some even intervals, so, make the first metal sintered back of filling in it form some round table-like fin 73.These fin 73 rounded arrangements, it also can be triangular in shape, prismatic or helical arrangement, to change the direction of motion of 73 air-flows of fin.
Claims (11)
1. the manufacture method of a flat plate heat tube may further comprise the steps:
(1) provide a mould, it comprises one first die cavity and some second die cavities that are communicated with first die cavity;
(2) provide a double-colored moulding ejaculator, this dual-color forming ejaculator has the injecting systems of two kinds of independent, direction;
(3) provide first metal powder and second metal powder;
(4) provide some deorienting obturators, and described deorienting obturator is placed mould first die cavity;
(5) in regular turn the injecting systems injection via different directions of first metal powder and second metal powder is entered in first die cavity and second die cavity of mould, make the hole of the second metal powder complete filling deorienting obturator and surround deorienting obturator, first metal powder and fill first die cavity and second die cavity to form living embryo;
(6) described living embryo is removed the spontaneous embryo of deorienting obturator inside via chemical degreasing or thermal cracking degreasing process and form the brown embryo that inside has some host cavities;
(7) brown embryo is placed sintering furnace impose sintering process and post-treatment process respectively and obtain flat plate heat tube, the described first metal powder bond and some fin of forming the continuous outer chamber of flat plate heat tube and extending from described outer chamber one side.
2. the manufacture method of flat plate heat tube as claimed in claim 1 is characterized in that: described each fin is the rectangular plate body along the lengthwise of flat plate heat tube longitudinal extension.
3. the manufacture method of flat plate heat tube as claimed in claim 1 is characterized in that: the be sticked outer chamber of flat plate heat tube of the cone of described each fin for being provided with at interval, the end that its contact area is big.
4. the manufacture method of flat plate heat tube as claimed in claim 1 is characterized in that: cylinder, rectangular cylinder, Rotary-table or the prism of described each fin for being provided with at interval.
5. the manufacture method of flat plate heat tube as claimed in claim 4 is characterized in that: these fin matrix forms arrangements.
6. the manufacture method of flat plate heat tube as claimed in claim 1 is characterized in that: the described second metal powder bond forms and is positioned at the outer chamber inner surface, continuous, mushy capillary structure.
7. the manufacture method of flat plate heat tube as claimed in claim 6 is characterized in that: be formed with between adjacent two host cavities of described brown embryo and the capillary structure porous support column that is connected of two ends up and down.
8. the manufacture method of flat plate heat tube as claimed in claim 1, it is characterized in that: described deorienting obturator has the hole that several run through, and described second metal powder is filled the hole of described deorienting obturator and is formed described porous support column.
9. the manufacture method of flat plate heat tube as claimed in claim 8 is characterized in that: the hole of the inside of described porous support column and the porosity communication of capillary structure.
10. the manufacture method of flat plate heat tube as claimed in claim 1, it is characterized in that: the particle diameter of described first metal powder is little than second metal powder.
11. the manufacture method of flat plate heat tube as claimed in claim 1 is characterized in that: described obturator is macromolecular material or wax-based material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810305183.2A CN101726205A (en) | 2008-10-24 | 2008-10-24 | Method for manufacturing flat plate type heat pipe |
| US12/392,083 US20100101761A1 (en) | 2008-10-24 | 2009-02-24 | Method for manufacturing a plate-type heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810305183.2A CN101726205A (en) | 2008-10-24 | 2008-10-24 | Method for manufacturing flat plate type heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101726205A true CN101726205A (en) | 2010-06-09 |
Family
ID=42116359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810305183.2A Pending CN101726205A (en) | 2008-10-24 | 2008-10-24 | Method for manufacturing flat plate type heat pipe |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20100101761A1 (en) |
| CN (1) | CN101726205A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372650A (en) * | 2012-04-16 | 2013-10-30 | 富瑞精密组件（昆山）有限公司 | Heat pipe shell manufacturing method |
| CN105783562A (en) * | 2016-05-13 | 2016-07-20 | 高建新 | Radiator |
| CN111907001A (en) * | 2019-05-07 | 2020-11-10 | 慧隆科技股份有限公司 | Molded heat transfer component with isothermal cavity and method of forming the same |
| CN112191842A (en) * | 2020-09-10 | 2021-01-08 | 安徽德诠新材料科技有限公司 | Heat conduction pipe sintering mould capable of realizing multi-pipe sintering |
| CN113048823A (en) * | 2021-03-30 | 2021-06-29 | 华南理工大学 | Ceramic soaking plate structure with composite liquid absorption core based on tape casting method and manufacturing method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941072B (en) * | 2009-07-08 | 2013-06-05 | 富准精密工业(深圳)有限公司 | Manufacturing method of panel-type heat pipe |
| US20130306293A1 (en) * | 2012-05-21 | 2013-11-21 | Hamilton Sundstrand Space Systems International | Extruded matching set radiators |
| US20130308273A1 (en) * | 2012-05-21 | 2013-11-21 | Hamilton Sundstrand Space Systems International | Laser sintered matching set radiators |
-
2008
- 2008-10-24 CN CN200810305183.2A patent/CN101726205A/en active Pending
-
2009
- 2009-02-24 US US12/392,083 patent/US20100101761A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372650A (en) * | 2012-04-16 | 2013-10-30 | 富瑞精密组件（昆山）有限公司 | Heat pipe shell manufacturing method |
| CN105783562A (en) * | 2016-05-13 | 2016-07-20 | 高建新 | Radiator |
| CN111907001A (en) * | 2019-05-07 | 2020-11-10 | 慧隆科技股份有限公司 | Molded heat transfer component with isothermal cavity and method of forming the same |
| CN112191842A (en) * | 2020-09-10 | 2021-01-08 | 安徽德诠新材料科技有限公司 | Heat conduction pipe sintering mould capable of realizing multi-pipe sintering |
| CN112191842B (en) * | 2020-09-10 | 2023-09-29 | 安徽德诠新材料科技有限公司 | Heat conduction pipe sintering die capable of being sintered through multiple pipes |
| CN113048823A (en) * | 2021-03-30 | 2021-06-29 | 华南理工大学 | Ceramic soaking plate structure with composite liquid absorption core based on tape casting method and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100101761A1 (en) | 2010-04-29 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |