CN106643240A - Method for manufacturing heat pipe core - Google Patents
Method for manufacturing heat pipe core Download PDFInfo
- Publication number
- CN106643240A CN106643240A CN201710026462.4A CN201710026462A CN106643240A CN 106643240 A CN106643240 A CN 106643240A CN 201710026462 A CN201710026462 A CN 201710026462A CN 106643240 A CN106643240 A CN 106643240A
- Authority
- CN
- China
- Prior art keywords
- mould
- wire netting
- outer tube
- preparation
- metal net
- 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.)
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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
Abstract
The invention discloses a method for manufacturing a heat pipe core. According to the method for manufacturing the heat pipe core, an outer surface of a mold is coated with a metal net, then the mold coated with the metal net is implanted into an outer pipe, and finally the metal net is sintered so that the metal net can be firmly attached to the inner wall of the outer pipe, and the thickness of the formed metal net is uniform. In addition, the mold can be easily pulled out from the metal net, and the trouble that in the prior art, the mold is pulled out by flattening or stretching the outer pipe can be avoided.
Description
Technical field
The present invention relates to the technical field of heat pipe processing, in particular to a kind of preparation method of heat pipe tube core.
Background technology
The products such as current electronics, electrical equipment have two main trend on the direction of development, and one is compact, is second high property
Energy and multifunction.With the diminution of increase and the volume of product interior element caloric value, heat generation density also thus quickly lifted,
If effectively radiating cannot be provided, it will have influence on electronics, the performance of electric equipment products and reliability, or even the use for shortening product
Time limit.In order to solve heat generation density rapid increase and provide effective heat dissipating method so that the product such as electronics, electrical equipment dissipates in system
Thermal design and structure load onto the problem for becoming important, and heat pipe is the critical elements for being widely used in heat transfer at present, especially
In terms of notebook computer, the heat (or golf calorific value element) that it produces microprocessor is by adopting heat pipes for heat transfer to heat dissipation element for it
Radiating, makes microprocessor keep operating at a normal temperature.Heat pipe can be considered that a passive heat with high thermoconductivity passes unit
Part, due to the internal hot biography mechanism of two phase flow so that the heat-transfer capability of heat pipe be same apparent size copper metal hundreds times with
On, therefore, have the advantages that to be swift in response using heat pipe and thermal resistance be little, coordinate heat pipe use develop it is various high performance
Heat radiation module, to solve the products such as current various electronics, electrical equipment, because of heat dissipation problem derived from performance boost, with respect to geothermal tube
The quality of performance and manufacturing technology, also become important key.
Heat pipe is a kind of heat-transfer arrangement of a phase change of utilization two (liquid, vapour) and steam flowing, due to this device energy
Enough under the temperature difference condition of very little, the length of a certain distance is transferred heat to.Working fluid absorbs heat of vaporization, stream in evaporator section
Release to condensation segment and condense into liquid after heat, then evaporator section is flowed back to by the capillary force that capillary structure is provided.Due to evaporation
Reason, in the working fluid liquid level of heating end different radius of curvature are formed in wire netting, therefore produced capillary force will
Condensate liquid is withdrawn into heating end by colling end, and completes a working cycles.Thus, as long as the hair produced by the wire netting of tube core
, more than the overall presure drop in heat pipe, heat pipe can normal work for thin power.So, it can be seen that tube core is component of the utmost importance in heat pipe
One of.
In prior art, axle is first implanted into the outer tube of heat pipe by machine for the making of the tube core of heat pipe；Plant in axle
After entering outer tube, the axle and outer tube wall will maintain gap, then by metal dust be filled between this it is sunken after, by outer tube and
Axle is placed in stove and sinters；Metal dust is allowed to be combined together with outer tube wall in sintering；After sintering, axle is detached,
Complete the making of the wire netting of heat pipe.But, this preparation method makes axle be difficult to be implanted into outer tube due to outer pipe range,
Even if after axle implantation outer tube, because the length of outer tube is long, causing the gap length edge between outer tube wall and axle
Outer tube direction is uneven, causes the metal dust thickness inserted to differ and causes the in uneven thickness of resulting wire netting.
The content of the invention
In view of this, one aspect of the present invention is to provide a kind of preparation method of heat pipe tube core, and the preparation method is obtained
Wire netting energy secure fit in the inwall of outer tube, the thickness of wire netting is uniform.
A kind of preparation method of heat pipe tube core, comprises the following steps：
(1) mould is provided, the appearance for making the mould coats a wire netting；
(2) outer tube is provided, the mould of the cladding wire netting is implanted in the outer tube；
(3) outer tube of Jing steps (2) is sintered so that the wire netting is fitted with the inwall of outer tube.
Further, the line footpath wiry for constituting the wire netting is 0.035～0.055mm.
Further, the thickness of the wire netting is 0.068～0.11mm.
Further, the mesh size of the wire netting is 60～120 mesh.
Further, the temperature of the sintering is 585～635 DEG C, and the time of the sintering is 20～26h.
Further, the temperature of the sintering is 825～885 DEG C, and the time of the sintering is 18～21h.
Further, the appearance that mould is additionally included in before appearance one wire netting of cladding for making the mould is coated with the demoulding
Agent.
Further, the outer tube is copper or aluminum.
Further, the mould is by made by iron or its alloy, nickel or its alloy, titanium or its alloy.
Further, the metallized metal net is copper or aluminum.
The preparation method of the heat pipe tube core of the present invention, the appearance for making the mould coats a wire netting, then will coat metal
In the mould implantation outer tube of net, last sintered metal net, so that the interior wall energy secure fit of wire netting and outer tube, formation
Metal thickness of net is uniform.Additionally, mould is extracted out with being relatively easy to from wire netting, it is to avoid by flattening or drawing in prior art
Stretch outer tube to extract the trouble of mould out.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific terminology have and the common skill of art of the present invention
The identical implication that art personnel are generally understood that.When there is contradiction, the definition in this specification is defined.
Term as used herein：
" by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " including ", " having ", " containing "
Or its any other deformation, it is intended that cover including for non-exclusionism.For example, the composition comprising listed elements, step, method,
Product or device are not necessarily solely those key elements, and can be including not expressly listed other key elements or this kind of composition, step
Suddenly, the intrinsic key element of method, product or device.
Conjunction " by ... constitute " exclude any key element do not pointed out, step or component.If in being used for claim,
This phrase will make claim for closed so as to not comprising the material in addition to the material that those are described, but relative
Except customary impurities.When phrase " by ... constitute " theme is rather than immediately following in the clause that occurs in claim main body after
When, it is only limited to the key element described in the clause；Other key elements be not excluded as the overall claim it
Outward.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value is limited, this is appreciated that and specifically discloses by any range limit or preferred value and any scope
All scopes that arbitrary pairing of lower limit or preferred value is formed, regardless of whether whether the scope separately discloses.For example, when open
During scope " 1～5 ", described scope should be interpreted as including scope " 1～4 ", " 1～3 ", " 1～2 ", " 1～2 and 4～
5 ", " 1～3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope is intended to include its end
Value and all integers within the range and fraction.
" mass parts " refer to the basic measurement unit of the mass ratio relation for representing multiple components, and 1 part can represent arbitrary list
Position quality, can such as be expressed as 1g, may also indicate that 2.689g etc..If we say component A mass parts be a parts, the matter of B component
Amount part is b parts, then it represents that the quality of component A and mass ratio a of B component：b.Or, represent component A quality be aK, B groups
The quality divided is bK (K is Arbitrary Digit, represents multiplying factor).Can not misread, and unlike mass fraction, all components
Mass parts sum be not limited to 100 parts of restriction.
"and/or" is used to represent that one of illustrated situation or both may to occur, and for example, A and/or B includes (A
And B) and (A or B)；
Additionally, key element of the present invention or indefinite article " one kind " and " one " before component are to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore " one " or " one kind " should be read as including one or at least one, well and odd number
The key element or component of form also includes plural form, unless the obvious purport of the quantity refers to singulative.
The preparation method of the heat pipe tube core of the present invention, comprises the following steps：
(1) mould is provided, the appearance for making the mould coats a wire netting；
(2) outer tube is provided, the mould of the cladding wire netting is implanted in the outer tube；
(3) outer tube of Jing steps (2) is sintered so that the wire netting is fitted with the inwall of outer tube.
As the wire netting of the present invention, the silk screen of some mesh of band that both can have been worked out using wire.It can be with
For individual layer, i.e., by many one metal wires it is integrated it is a branch of worked out, or for multilayer, that is, have multilayer establishment net to be superimposed composition.
Wire netting can be column, and such as cylindric or class is cylindric.
The line footpath wiry of composition metal net can be 0.035～0.055mm, such as 0.035mm, 0.038mm,
0.040mm, 0.045mm, 0.050mm, 0.052mm, 0.054mm, 0.055mm etc..Herein, line footpath is thickness.
The referring to property of thickness of wire netting be 0.068～0.11mm, such as 0.068mm, 0.070mm, 0.080mm,
0.090mm, 0.10mm, 0.105mm, 0.108mm, 0.11mm etc..
The mesh size of wire netting is advisable with 60～120 mesh, such as 60 mesh, 62 mesh, 65 mesh, 70 mesh, 80 mesh, 85 mesh, 100
Mesh, 110 mesh, 120 mesh etc..As for the shape of mesh, its shape can not be limited for square, circular or cellular etc..
The edge of wire netting can cut into sawtooth corrugation shape, and wave height is less than 1mm.
The material of the wire netting of the present invention can include aluminium or copper material, can also there is other materials etc. certainly.
The support for functioning as wire netting of above-mentioned mould, specifically, is being implanted into wire netting using external equipment
It is easy to handle operation during outer tube；In sintering process, wire netting can be prevented to the internal expansion of outer tube so as to ensure wire netting only
Can fit to the expansion of the outer wall of outer tube；In cooling procedure after sintering is finished, the shape of wire netting can be fixed.
The shape of mould can adopt bar-shaped or shaft-like, and it can adopt solid construction.
The material of mould is preferably higher than the material of wire netting for softening point or fusing point.It is aluminium or copper material in wire netting
In embodiment, mould can be using made by iron or its alloy, nickel or its alloy, titanium or its alloy.Herein, iron, nickel, titanium it is molten
Point or softening point are all remarkably higher than wire netting, and so during sintering, mould softens and fits with wire netting.
It is understood that after step (3), also including the demoulding.The demoulding herein is referred to mould separating wire netting.
In order that being easier for the demoulding, can be before cladding wire netting in the appearance coating releasing agent of mould.Releasing agent
Can be organo-silicon compound class, such as silicone compounds, silicone oil, silicones metlyl branching silicone oil, methyl-silicone oil, emulsification methyl
Silicone oil, hydrogeneous methyl-silicone oil, silicone grease, silicones, silicon rubber, silicon rubber toluene solution；Or for wax series, such as plant, animal,
Synthesis paraffin；Microcrystalline wax；Tissuemat E etc.；Or arrange for fluorine system, such as high polytetrafluoroethylene (PTFE)；Fluororesin powder；Fluororesin
Coating；Or for surfactant-based, such as metallic soap (anionic property), EO, PO derivative (nonionic)；Or for inorganic powder
End, such as talcum, mica, potter's clay, white clay；Polyether series, such as polyethers and fatty oil mixture.
Thickness that is how many as the consumption of releasing agent and coating can need adjust according to the actual demoulding.
The temperature of above-mentioned sintering can be preferably controlled in the softening temperature of wire netting between fusing point.Herein, softening temperature
Referring to can be so that the temperature range of the softening (i.e. hardness is significantly reduced) of metal solid.
Specifically, for wire netting is aluminum, the temperature of sintering can be 585～635 DEG C, such as 585 DEG C, 600 DEG C,
610 DEG C, 620 DEG C, 630 DEG C, 635 DEG C etc.；Under this sintering temperature basis, time of sintering can be 20～26h, such as 20h,
20.5h, 22h, 23h, 24h, 25h or 26h etc..For wire netting is copper, the temperature of sintering can be 825～885 DEG C, such as
825 DEG C, 830 DEG C, 840 DEG C, 850 DEG C, 855 DEG C, 875 DEG C, 880 DEG C, 885 DEG C etc., under this sintering temperature, its corresponding sintering
Time can be 18～21h, such as 18h, 19h, 19.5h, 20h, 21h.
The material of outer tube can be aluminum or the copper or alloy of the two.
Below do not address part and be applied to prior art.
Embodiment 1
Step one, mould appearance coat releasing agent.
Step 2, mould appearance coat aluminum metal net.The line footpath wiry of aluminum metal net be 0.035mm, aluminium gold
The thickness of category net is 0.068mm, and the mesh size of aluminum metal net is 60 mesh.The edge cuts of aluminum metal net are less than into wave height
The sawtooth corrugation shape of 1mm.
Step 3, by cladding aluminum metal net mould implantation aluminium outer tube in.
Step 4, above-mentioned aluminium outer tube is carried out sintering 26h at 585 DEG C until the fusion of aluminum metal net and aluminium outer tube is to paste
Close.
Step 5, the demoulding.Will mould from shaping aluminum metal taking-up off the net.
Embodiment 2
Step one, mould appearance coat releasing agent.
Step 2, mould appearance coat wire netting.The line footpath wiry of aluminum metal net be 0.055mm, aluminum metal
The thickness of net is 0.11mm, and the mesh size of aluminum metal net is 120 mesh.The edge cuts of aluminum metal net are less than 1mm into wave height
Sawtooth corrugation shape.
Step 3, by cladding aluminum metal net mould implantation aluminium outer tube in.
Step 4, above-mentioned aluminium outer tube is carried out sintering 20h at 635 DEG C until the fusion of aluminum metal net and aluminium outer tube is to paste
Close.
Step 5, the demoulding.Will mould from shaping aluminum metal taking-up off the net.
Embodiment 3
Step one, mould appearance coat releasing agent.
Step 2, mould appearance coat aluminum metal net.The line footpath wiry of aluminum metal net be 0.045mm, aluminium gold
The thickness of category net is 0.09mm, and the mesh size of aluminum metal net is 90 mesh.The edge cuts of aluminum metal net are less than 1mm into wave height
Sawtooth corrugation shape.
Step 3, by cladding aluminum metal net mould implantation aluminium outer tube in.
Step 4, above-mentioned aluminium outer tube is carried out sintering 23h at 590 DEG C until the fusion of aluminum metal net and aluminium outer tube is to paste
Close.
Step 5, the demoulding.Will mould from shaping aluminum metal taking-up off the net.
Embodiment 4
Step one, mould appearance coat releasing agent.
Step 2, in the appearance coated copper wire netting of mould.The line footpath wiry of copper metal net is 0.035mm, and copper is golden
The thickness of category net is 0.068mm, and the mesh size of copper metal net is 60 mesh.The edge cuts of copper metal net are less than into wave height
The sawtooth corrugation shape of 1mm.
Step 3, by the mould of coated copper wire netting implantation copper outer tube.
Step 4, above-mentioned copper outer tube is carried out sintering 21h at 825 DEG C until the fusion of copper metal net and copper outer tube is to paste
Close.
Step 5, the demoulding.Will mould from shaping copper metal taking-up off the net.
Embodiment 5
Step one, mould appearance coat releasing agent.
Step 2, mould appearance coat wire netting.The line footpath wiry of copper metal net be 0.055mm, copper metal
The thickness of net is 0.11mm, and the mesh size of copper metal net is 120 mesh.The edge cuts of copper metal net are less than 1mm into wave height
Sawtooth corrugation shape.
Step 3, by the mould of coated copper wire netting implantation copper outer tube.
Step 4, above-mentioned copper outer tube is carried out sintering 18h at 885 DEG C until the fusion of copper metal net and copper outer tube is to paste
Close.
Step 5, the demoulding.Will mould from shaping copper metal taking-up off the net.
Embodiment 6
Step one, mould appearance coat releasing agent.
Step 2, in the appearance coated copper wire netting of mould.The line footpath wiry of copper metal net is 0.045mm, and copper is golden
The thickness of category net is 0.09mm, and the mesh size of copper metal net is 90 mesh.The edge cuts of copper metal net are less than 1mm into wave height
Sawtooth corrugation shape.
Step 3, by the mould of coated copper wire netting implantation copper outer tube.
Step 4, above-mentioned copper outer tube is carried out sintering 19.5h at 855 DEG C until copper metal net and copper outer tube fusion with
Laminating.
Step 5, the demoulding.Will mould from shaping copper metal taking-up off the net.
The preparation method of the heat pipe tube core of the present invention, the appearance for making the mould coats a wire netting, then will coat metal
In the mould implantation outer tube of net, last sintered metal net, so that the interior wall energy secure fit of wire netting and outer tube, formation
Metal thickness of net is uniform.Additionally, mould is extracted out with being relatively easy to from wire netting, it is to avoid by flattening or drawing in prior art
Stretch outer tube to extract the trouble of mould out.
Because the number range of each technological parameter involved in the present invention can not possibly all embody in the above-described embodiments,
As long as but those skilled in the art's envisioned any numerical value fallen in the above-mentioned number range completely can implement this
Invention, also includes any combination of occurrence in the range of some numerical value certainly.Herein, for the consideration of length, eliminate to
Go out the embodiment of occurrence in certain one or more number range, this disclosure for being not to be construed as technical scheme is not filled
Point.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But above-mentioned detailed process equipment and technological process are the invention is not limited in, that is, does not mean that the present invention has to rely on above-mentioned detailed
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
Addition, concrete mode selection of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., fall in the protection of the present invention
In the range of.
Claims (10)
1. a kind of preparation method of heat pipe tube core, it is characterised in that comprise the following steps：
(1) mould is provided, the appearance for making the mould coats a wire netting；
(2) outer tube is provided, the mould of the cladding wire netting is implanted in the outer tube；
(3) outer tube of Jing steps (2) is sintered so that the wire netting is fitted with the inwall of outer tube.
2. preparation method according to claim 1, it is characterised in that the line footpath wiry for constituting the wire netting is
0.035～0.055mm.
3. preparation method according to claim 1, it is characterised in that the thickness of the wire netting is 0.068～0.11mm.
4. preparation method according to claim 1, it is characterised in that the mesh size of the wire netting is 60～120 mesh.
5. preparation method according to claim 1, it is characterised in that the temperature of the sintering is 585～635 DEG C, described
The time of sintering is 20～26h.
6. preparation method according to claim 1, it is characterised in that the temperature of the sintering is 825～885 DEG C, described
The time of sintering is 18～21h.
7. preparation method according to claim 1, it is characterised in that the appearance for making the mould is coated before a wire netting
The appearance for being additionally included in mould is coated with releasing agent.
8. preparation method according to claim 1, it is characterised in that the outer tube is copper or aluminum.
9. preparation method according to claim 1, it is characterised in that the mould by iron or its alloy, nickel or its alloy,
Made by titanium or its alloy.
10. preparation method according to claim 1, it is characterised in that the metallized metal net is copper or aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026462.4A CN106643240A (en) | 2017-01-13 | 2017-01-13 | Method for manufacturing heat pipe core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026462.4A CN106643240A (en) | 2017-01-13 | 2017-01-13 | Method for manufacturing heat pipe core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106643240A true CN106643240A (en) | 2017-05-10 |
Family
ID=58843928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710026462.4A Pending CN106643240A (en) | 2017-01-13 | 2017-01-13 | Method for manufacturing heat pipe core |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425967A (en) * | 2011-12-05 | 2012-04-25 | 苏州聚力电机有限公司 | Thinned composite capillary texture and molding method and application thereof |
| CN102435084A (en) * | 2011-11-30 | 2012-05-02 | 苏州聚力电机有限公司 | Heat pipe structure capable of controlling sintering position of capillary tissue and preparation method thereof |
| CN103353248A (en) * | 2013-07-08 | 2013-10-16 | 昆山德泰新材料科技有限公司 | Flat type heat pipe and manufacturing method thereof |
| CN103940274A (en) * | 2013-01-23 | 2014-07-23 | 中山伟强科技有限公司 | Ultra-thin heat pipe and manufacturing method thereof |
| US20150113808A1 (en) * | 2013-10-29 | 2015-04-30 | Hao Pai | Method for manufacturing heat pipe with ultra-thin capillary structure |
-
2017
- 2017-01-13 CN CN201710026462.4A patent/CN106643240A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435084A (en) * | 2011-11-30 | 2012-05-02 | 苏州聚力电机有限公司 | Heat pipe structure capable of controlling sintering position of capillary tissue and preparation method thereof |
| CN102425967A (en) * | 2011-12-05 | 2012-04-25 | 苏州聚力电机有限公司 | Thinned composite capillary texture and molding method and application thereof |
| CN103940274A (en) * | 2013-01-23 | 2014-07-23 | 中山伟强科技有限公司 | Ultra-thin heat pipe and manufacturing method thereof |
| CN103353248A (en) * | 2013-07-08 | 2013-10-16 | 昆山德泰新材料科技有限公司 | Flat type heat pipe and manufacturing method thereof |
| US20150113808A1 (en) * | 2013-10-29 | 2015-04-30 | Hao Pai | Method for manufacturing heat pipe with ultra-thin capillary structure |
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Application publication date: 20170510 |