CN104359342A - Enhanced boiling microstructure on metal surface and preparation method thereof - Google Patents
Enhanced boiling microstructure on metal surface and preparation method thereof Download PDFInfo
- Publication number
- CN104359342A CN104359342A CN201410579826.8A CN201410579826A CN104359342A CN 104359342 A CN104359342 A CN 104359342A CN 201410579826 A CN201410579826 A CN 201410579826A CN 104359342 A CN104359342 A CN 104359342A
- Authority
- CN
- China
- Prior art keywords
- organic polymer
- structural
- micro
- thin web
- spin coating
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
- F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Moulding By Coating Moulds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an enhanced boiling microstructure on a metal surface and a preparation method thereof. The microstructure adopts a metal sheet, with one surface being an array distributed microstructure surface and the other surface being a smooth plane, and the size being 50 nm to 50 micrometers. The method comprises steps of taking a sheet, with a cone-shaped microstructure on the surface, obtained through a photoetching technology as a template, copying the structure on the template to the surface of an organic polymer film after one to two times of transfer operation, pouring molten metal to the surface of the film under the condition that the temperature exceeds a metal melting point and is 150 to 300 DEG C, removing colloid after cooling, and obtaining a metal matrix with a graphical enhanced boiling microstructure on the surface. The microstructure and the preparation method have the advantages of simple operation, low cost, high preparation efficiency and good consistency of samples.
Description
Technical field
The present invention relates to enhance heat structure, strengthening boiling micro-structural particularly relating to a kind of metal surface and preparation method thereof.
Background technology
Along with the progress of modern industry, the continuous consumption of the energy, saves and effectively utilizes natural resources broadly to receive the concern of people.
In the utilization of the energy with in transmitting, effective strengthening heat transfer is most important with the investment and operating cost reducing equipment for the efficiency improving whole heat transfer system.At present, the main method of enhanced boiling heat transfer improves heat transfer surface structures.
Along with the development of nanometer technique, the minute yardstick porous surface of enhanced boiling heat transfer receives the concern of people gradually, the existence of micro-nano-scale sunk structure effectively can improve the specific area of heating wall, change the imbibition characteristic of solid liquid interface, improve steam bubble nucleation density and depart from frequency, thus improving boiling heat transfer ability.The nano-porous gold metal surface of augmentation of heat transfer boiling is especially in structural stability, and mechanical property, the aspects such as thermal conductivity have unique advantage, have good Study and appliance and are worth.
At present, the method preparing nano porous metal structure comparison maturation mainly contains template and de-alloyage.Template synthesis process is complicated, and cost is higher, is not suitable for batch production; And de-alloyage is mainly used to prepare nanoporous bulk metal material, and above-mentioned two kinds of gained micro-structurals are poroid, and pattern controls to there is randomness, can not precise hard_drawn tuhes.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, strengthening boiling micro-structural that a kind of metal surface is provided and preparation method thereof.
The present invention is achieved through the following technical solutions:
A strengthening boiling micro-structural for metal surface, comprise sheet metal 7, one of them face of sheet metal 7 is the micro-structural face of array distribution, and another face is smooth flat;
Described microstructure size is 50nm-50um.
Described micro-structural face is recessed or convex cone, cylinder, rectangle or the triangular structure of array distribution.
The preparation method of the strengthening boiling micro-structural of above-mentioned metal surface is as follows:
(1) there is the thin slice of array distribution bulge-structure as original template 1 using surface, the plane of organic polymer thin web 2 is impressed, imprint temperature is 60 DEG C-150 DEG C DEG C, original template 1 and organic polymer thin web 2 are heating and curing simultaneously, after organic polymer thin web 2 demoulding, the bulge-structure of this original template 1 is transferred to the surface of organic polymer thin web 2, obtain the organic polymer thin web 3 with the sunk structure corresponding to original template 1 bulge-structure, complete first time transfer printing;
(2) the organic polymer thin web 3 of surface indentation structure first time transfer printing obtained, there is as surface the new template 4 of sunk structure, be placed on spin coater, obtained the organic polymer thin web 5 of the bulge-structure identical with original template 1 by the mode of spin coating, complete second time transfer printing;
The new template 4 completed of first time transfer printing is different from the component material of the organic polymer thin web 5 that second time transfer printing completes, and object prevents new template 4 and organic polymer thin web 5 from sticking together, and affects the demoulding;
On spin coater, spin coating method is: it is 500-2000r/s that spin coater spin coating parameters arranges rotating speed, and spin-coating time is 30s-200s, and some glue amount is 0.5-2mL, at the temperature of 60 DEG C-150 DEG C, solidify 30min; Complete first time spin coating;
(3) spin coating method is repeated in step 2 2-5 time, to increase the thickness of film; Wherein, last spin coating completes in a front spin coating, and carry out after being placed in 80 DEG C of-120 DEG C of isoperibol 5-20min; Wherein, after last 1 spin coating completes, under 60 DEG C of-150 DEG C of conditions, 30min is solidified; After film hardening, carry out stripping operation, obtain the organic polymer film copy board 8 with original template 1 bulge-structure;
(4) the organic polymer film copy board 8 obtained in step 3 is placed on temperature platform 9, platform temperature is 150 DEG C-300 DEG C, be that the METAL HEATING PROCESS of 150 DEG C-300 DEG C is to molten condition fusing point, even perfusion, be laid in the surface of organic polymer film copy board 8 bulge-structure, form metallic solution layer 6, metallic solution relies on self gravitation effect, penetrates in the space between each projection, apply pressure at metallic solution layer 6 upper surface, make it form flat surface;
(5) after metallic solution layer 6 cooling curing, remove organic polymer film copy board 8, namely obtain the sheet metal 7 with strengthening boiling micro-structural.
The matrix of described original template 1 is sapphire sheet or silicon chip.
Sheet metal 7 thickness is 0.1mm-20mm.
Step (5) removes organic polymer film copy board 8 specifically, and Jiang Qipao enters in organic solvent or acid solution, and organic polymer film copy board 8 is decomposed, through Ultrasonic Cleaning process.
Cost of the present invention is low, simple to operate, obviously can improve the drawback that template makes metal-surface strengthening micro-nano structure complex process, and distributing when de-alloyage can be avoided again to make micro-nano structure exists uncertain factor.Meanwhile, microstructure appearance reproduction ratio is high, regulates and controls by realizing the strengthening boiling critical surfaces parameters such as his-and-hers watches area, surface wettability to the adjustment of original template, with satisfied difference strengthening boiling performance requirement.
Accompanying drawing explanation
Fig. 1 is strengthening boiling micro-structural and the preparation flow schematic diagram thereof of metal surface of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1.The strengthening boiling micro-structural of metal surface of the present invention, comprise sheet metal 7, one of them face of sheet metal 7 is the micro-structural face of array distribution, and another face is smooth flat;
Described microstructure size is 50nm-50um.
Described micro-structural face is the similar structures such as recessed or convex cone, cylinder, rectangle or the triangle of array distribution, is covered with whole.
The preparation method of the strengthening boiling micro-structural of metal surface, realizes by following steps:
(1) there is the thin slice of array distribution bulge-structure as original template 1 using surface, the plane of organic polymer thin web 2 is impressed, imprint temperature is 60 DEG C-150 DEG C DEG C, original template 1 and organic polymer thin web 2 are heating and curing simultaneously, after organic polymer thin web 2 demoulding, the bulge-structure of this original template 1 is transferred to the surface of organic polymer thin web 2, obtain the organic polymer thin web 3 with the sunk structure corresponding to original template 1 bulge-structure, complete first time transfer printing;
(2) the organic polymer thin web 3 of surface indentation structure first time transfer printing obtained, there is as surface the new template 4 of sunk structure, be placed on spin coater, obtained the organic polymer thin web 5 of the bulge-structure identical with original template 1 by the mode of spin coating, complete second time transfer printing;
The new template 4 completed of first time transfer printing is different from the component material of the organic polymer thin web 5 that second time transfer printing completes, and object prevents new template 4 and organic polymer thin web 5 from sticking together, and affects the demoulding;
On spin coater, spin coating method is: it is 500-2000r/s that spin coater spin coating parameters arranges rotating speed, and spin-coating time is 30s-200s, and some glue amount is 0.5-2mL, at the temperature of 60 DEG C-150 DEG C, solidify 30min; Complete first time spin coating;
(3) step (2) middle spin coating method 2-5 time is repeated, to increase the thickness of film; Wherein, last spin coating completes in a front spin coating, and carry out after being placed in 80 DEG C of-120 DEG C of isoperibol 5-20min; Wherein, after last 1 spin coating completes, under 60 DEG C of-150 DEG C of conditions, 30min is solidified; After film hardening, carry out stripping operation, obtain the organic polymer film copy board 8 with original template 1 bulge-structure;
(4) the organic polymer film copy board 8 obtained in step (3) is placed on temperature platform 9, platform temperature is 150 DEG C-300 DEG C, be that the METAL HEATING PROCESS of 150 DEG C-300 DEG C is to molten condition fusing point, even perfusion, be laid in the surface of organic polymer film copy board 8 bulge-structure, form metallic solution layer 6, metallic solution relies on self gravitation effect, penetrate in the space between each projection, apply pressure at metallic solution layer 6 upper surface, make it form flat surface;
(5) after metallic solution layer 6 cooling curing, remove organic polymer film copy board 8, namely obtain the sheet metal 7 with strengthening boiling micro-structural.Sheet metal 7 thickness is 0.1mm-20mm.
The matrix of described original template 1 is sapphire sheet or silicon chip.Optical etching technology is adopted to obtain.
Step (5) removes organic polymer film copy board 8 specifically, and Jiang Qipao enters in organic solvent or acid solution, and organic polymer film copy board 8 is decomposed, through Ultrasonic Cleaning process.
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a strengthening boiling micro-structural for metal surface, it is characterized in that: comprise sheet metal (7), one of them face of sheet metal (7) is the micro-structural face of array distribution, and another face is smooth flat;
Described microstructure size is 50nm-50um.
2. the strengthening boiling micro-structural of metal surface according to claim 1, is characterized in that: described micro-structural face is the recessed or convex cone of array distribution.
3. the strengthening boiling micro-structural of metal surface according to claim 1, is characterized in that: described micro-structural face is the recessed or convex cylinder of array distribution.
4. the strengthening boiling micro-structural of metal surface according to claim 1, is characterized in that: described micro-structural face is recessed or convex rectangle or the triangular structure of array distribution.
5. the preparation method of the strengthening boiling micro-structural of metal surface according to any one of Claims 1-4, is characterized in that following steps:
(1) there is the thin slice of array distribution bulge-structure as original template (1) using surface, the plane of organic polymer thin web (2) is impressed, imprint temperature is 60 DEG C-150 DEG C DEG C, original template (1) and organic polymer thin web (2) are heating and curing simultaneously, after organic polymer thin web (2) demoulding, the bulge-structure of this original template (1) is transferred to the surface of organic polymer thin web (2), obtain that there is the organic polymer thin web (3) with the corresponding sunk structure of original template (1) bulge-structure, complete first time transfer printing,
(2) the organic polymer thin web (3) of surface indentation structure first time transfer printing obtained, there is as surface the new template (4) of sunk structure, be placed on spin coater, obtained the organic polymer thin web (5) of the bulge-structure identical with original template (1) by the mode of spin coating, complete second time transfer printing;
The new template (4) completed of first time transfer printing is different from the component material of the organic polymer thin web (5) that second time transfer printing completes, object prevents new template (4) and organic polymer thin web (5) from sticking together, and affects the demoulding;
On spin coater, spin coating method is: it is 500-2000r/s that spin coater spin coating parameters arranges rotating speed, and spin-coating time is 30s-200s, and some glue amount is 0.5-2mL, at the temperature of 60 DEG C-150 DEG C, solidify 30min; Complete first time spin coating;
(3) step (2) middle spin coating method 2-5 time is repeated, to increase the thickness of film; Wherein, last spin coating completes in a front spin coating, and carry out after being placed in 80 DEG C of-120 DEG C of isoperibol 5-20min; Wherein, after last 1 spin coating completes, under 60 DEG C of-150 DEG C of conditions, 30min is solidified; After film hardening, carry out stripping operation, obtain the organic polymer film copy board 8 with original template (1) bulge-structure;
(4) the organic polymer film copy board (8) obtained in step (3) is placed on temperature platform (9), platform temperature is 150 DEG C-300 DEG C, be that the METAL HEATING PROCESS of 150 DEG C-300 DEG C is to molten condition fusing point, even perfusion, be laid in the surface of organic polymer film copy board (8) bulge-structure, form metallic solution layer (6), metallic solution relies on self gravitation effect, penetrate in the space between each projection, apply pressure at metallic solution layer (6) upper surface, make it form flat surface;
(5) after metallic solution layer (6) cooling curing, remove organic polymer film copy board (8), namely obtain the sheet metal (7) with strengthening boiling micro-structural.
6. preparation method according to claim 5, is characterized in that: the matrix of described original template (1) is sapphire sheet or silicon chip.
7. preparation method according to claim 5, it is characterized in that: step (5) removes organic polymer film copy board (8) specifically, steeped in organic solvent or acid solution, organic polymer film copy board (8) is decomposed, through Ultrasonic Cleaning process.
8. preparation method according to claim 5, is characterized in that: sheet metal (7) thickness is 0.1mm-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579826.8A CN104359342B (en) | 2014-10-24 | 2014-10-24 | A kind of strengthening boiling micro-structural of metal surface and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579826.8A CN104359342B (en) | 2014-10-24 | 2014-10-24 | A kind of strengthening boiling micro-structural of metal surface and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104359342A true CN104359342A (en) | 2015-02-18 |
| CN104359342B CN104359342B (en) | 2016-08-24 |
Family
ID=52526628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410579826.8A Active CN104359342B (en) | 2014-10-24 | 2014-10-24 | A kind of strengthening boiling micro-structural of metal surface and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104359342B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820023A (en) * | 2019-10-29 | 2020-02-21 | 苏州胜利精密制造科技股份有限公司 | Method for preparing ultra-precise microstructure radiating fin |
| CN111633882A (en) * | 2020-06-04 | 2020-09-08 | 清华大学 | Method for constructing grid-shaped microstructure on surface of FEVE fluorocarbon resin |
| CN114325902A (en) * | 2022-01-05 | 2022-04-12 | 矽万(上海)半导体科技有限公司 | Microprism array manufacturing method based on laser direct writing lithography technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112731A (en) * | 2004-10-15 | 2006-04-27 | Daikin Ind Ltd | Small-diameter heat transfer tube unit for small-diameter multitubular heat exchanger |
| CN101421579A (en) * | 2006-03-03 | 2009-04-29 | 理查德·弗伯格 | Porous layer |
| CN101644549A (en) * | 2009-07-28 | 2010-02-10 | 华南理工大学 | Compound porous structure of micro groove and fiber and preparation method thereof |
| CN102683305A (en) * | 2012-05-14 | 2012-09-19 | 西安交通大学 | Chip reinforced boiling heat transfer structure of multi-pore microcolumn variable camber molded surfaces |
| CN104002474A (en) * | 2014-05-12 | 2014-08-27 | 华南理工大学 | Preparation method and application of super-hydrophobic and adhesion-adjustable surface with micro-nano composite structure |
| CN204202461U (en) * | 2014-10-24 | 2015-03-11 | 华南理工大学 | A kind of strengthening boiling micro-structural of metal surface |
-
2014
- 2014-10-24 CN CN201410579826.8A patent/CN104359342B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112731A (en) * | 2004-10-15 | 2006-04-27 | Daikin Ind Ltd | Small-diameter heat transfer tube unit for small-diameter multitubular heat exchanger |
| CN101421579A (en) * | 2006-03-03 | 2009-04-29 | 理查德·弗伯格 | Porous layer |
| CN101644549A (en) * | 2009-07-28 | 2010-02-10 | 华南理工大学 | Compound porous structure of micro groove and fiber and preparation method thereof |
| CN102683305A (en) * | 2012-05-14 | 2012-09-19 | 西安交通大学 | Chip reinforced boiling heat transfer structure of multi-pore microcolumn variable camber molded surfaces |
| CN104002474A (en) * | 2014-05-12 | 2014-08-27 | 华南理工大学 | Preparation method and application of super-hydrophobic and adhesion-adjustable surface with micro-nano composite structure |
| CN204202461U (en) * | 2014-10-24 | 2015-03-11 | 华南理工大学 | A kind of strengthening boiling micro-structural of metal surface |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820023A (en) * | 2019-10-29 | 2020-02-21 | 苏州胜利精密制造科技股份有限公司 | Method for preparing ultra-precise microstructure radiating fin |
| CN111633882A (en) * | 2020-06-04 | 2020-09-08 | 清华大学 | Method for constructing grid-shaped microstructure on surface of FEVE fluorocarbon resin |
| CN114325902A (en) * | 2022-01-05 | 2022-04-12 | 矽万(上海)半导体科技有限公司 | Microprism array manufacturing method based on laser direct writing lithography technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104359342B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101339364B (en) | Method for manufacturing micro-lens array by soft mould impression | |
| CN110412684A (en) | A kind of preparation method of near-eye display diffraction grating waveguide | |
| CN109186817A (en) | A kind of condenser type pliable pressure sensor and its manufacturing method | |
| CN104181769B (en) | A kind of preparation method of volcano shape of the mouth as one speaks graphical sapphire substrate | |
| CN109354874A (en) | A kind of preparation of new type silicone rubber heat-conducting pad and cutting process | |
| CN102897709B (en) | Manufacturing method of low-cost micronano integrated structure | |
| CN104359342A (en) | Enhanced boiling microstructure on metal surface and preparation method thereof | |
| CN103172019B (en) | A kind of preparation technology of dry adhesion micro-nano compound two-stage incline structure | |
| CN204202461U (en) | A kind of strengthening boiling micro-structural of metal surface | |
| CN102145875A (en) | Preparation method of polydimethylsiloxane micro-nanofluidic chip | |
| CN109272845A (en) | A kind of shale air water two-phase visualization micro pore model and production method | |
| CN106393526A (en) | Manufacturing method of polydimethylsiloxane (PDMS) micro-fluidic chip having high aspect-ratio structure | |
| CN103579434B (en) | The method of patterned sapphire substrate is prepared without remnant layer nanometer embossing | |
| CN108913104A (en) | A kind of heat-conducting pad and preparation method thereof | |
| CN102494972A (en) | Two-dimensional heat curing porous medium model for microscopic oil displacement and manufacturing method for model | |
| CN106098963B (en) | Optical thin film and preparation method thereof with random pyramid pattern matte | |
| CN105239454A (en) | Release paper production device for grain-imitative artificial leather and production method of release paper | |
| CN106914969A (en) | A kind of 3D printing method of concrete component | |
| CN102799066B (en) | Method for preparing concave lens array structure on titanium dioxide inorganic-organic photosensitive composite film | |
| CN110504474A (en) | Method for preparing heterogeneous composite proton exchange membrane by regulating and controlling interface microstructure | |
| CN105425266A (en) | Preparation method for photonic crystal plastic scintillator | |
| CN204575880U (en) | A kind of based on the visible of nano-imprint process and near-infrared absorption body | |
| CN108957611A (en) | A kind of manufacturing method of lenticular lenses, lenticular lenses and display equipment | |
| CN102243436B (en) | Electric-field-induced micro-compounding method under geometrical restraint | |
| CN105502281A (en) | Metal patterning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |