CN106993394A - A kind of preparation method of high-heat conductive efficency graphite composite sheet - Google Patents
A kind of preparation method of high-heat conductive efficency graphite composite sheet Download PDFInfo
- Publication number
- CN106993394A CN106993394A CN201710246040.8A CN201710246040A CN106993394A CN 106993394 A CN106993394 A CN 106993394A CN 201710246040 A CN201710246040 A CN 201710246040A CN 106993394 A CN106993394 A CN 106993394A
- Authority
- CN
- China
- Prior art keywords
- graphite
- copper foil
- composite sheet
- heat conduction
- graphite flake
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Abstract
The present invention discloses a kind of preparation method of high-heat conductive efficency graphite composite sheet, the graphite composite sheet includes graphite flake and the multi-disc heat conduction copper foil through the graphite flake that surface is in contact with thermal source, and the thickness of the heat conduction copper foil is identical with the thickness of the graphite flake；It comprises the following steps：（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；（b）Copper foil volume is punched into heat conduction copper foil；（c）The heat conduction copper foil is inserted in the through hole.By, through graphite flake is set, its capacity of heat transmission in vertical direction can be so improved, so as to improve heat transfer efficiency so that the thermal conductivity of graphite flake in vertical direction reaches more than 150W/ (mk) in graphite flake.
Description
Technical field
The present invention relates to a kind of graphite composite sheet, and in particular to a kind of preparation method of high-heat conductive efficency graphite composite sheet.
Background technology
In recent years, continuing to develop with electronic technology, electronic product, which is constantly updated, regenerates, the size of its work package
Less and less, the speed and efficiency more and more higher of work, its caloric value are also increasing, therefore it is corresponding not require nothing more than its outfit
Heat abstractor, it is also to be ensured that heat abstractor has stronger heat-sinking capability, is made with ensureing the reliability of properties of product and extending it
Use the life-span.
Graphite heat conducting heat sink material, because of its distinctive low-density（Relative to metal class）With high heat conduction and heat radiation coefficient and low-heat
Resistance turns into the preferred material that hyundai electronicses class product solves heat conduction and heat radiation technology.Graphite heat radiation fin can along level, vertical two
Direction heat conduction, but it is relatively poor and easily form focus in the radiating effect of vertical direction, influences the radiating of electronic product
Effect.
The content of the invention
For above-mentioned technical deficiency, it is an object of the invention to provide a kind of system of high-heat conductive efficency graphite composite sheet
Make method.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of high-heat conductive efficency graphite composite sheet
Preparation method, graphite flake and led through the multi-disc of the graphite flake that the graphite composite sheet is in contact including surface with thermal source
Hot copper foil, the thickness of the heat conduction copper foil is identical with the thickness of the graphite flake；It comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；
（c）The heat conduction copper foil is inserted in the through hole.
Optimally, it also includes step（d）In another surface mount formation tack coat of the graphite flake.
Optimally, it also includes step（d'）By step（c）Obtained product is placed in 1000 ~ 1080 DEG C, under vacuum condition
Insulation is down to room temperature after 10 ~ 30 minutes.
Further, the step（d'）In, its programming rate is 30 ~ 50 DEG C/h, and its cooling rate is 50 ~ 100 DEG C/h.
The beneficial effects of the present invention are：The preparation method of high-heat conductive efficency graphite composite sheet of the present invention, by graphite
Through graphite flake is set in piece, its capacity of heat transmission in vertical direction can be so improved, so as to improve heat transfer efficiency, is made
The thermal conductivity of graphite flake in vertical direction is obtained to reach more than 150W/ (mk).
Embodiment
The present invention is described in detail below with reference to shown embodiment：
Embodiment 1
The present embodiment provides a kind of preparation method of high-heat conductive efficency graphite composite sheet, the graphite composite sheet such as Fig. 1 and Fig. 2 institutes
Show, including surface be in contact with thermal source 4 graphite flake 1, formed the tack coat 3 on another surface of graphite flake 1 and one end with it is viscous
Knot layer 3 is in contact and the other end extends to multi-disc heat conduction copper foil 2 through graphite flake 1, thickness and the graphite flake 1 of heat conduction copper foil 2
Thickness it is identical；It comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；The thickness of heat conduction copper foil 2 is 20 μm ~ 2mm, a diameter of 1 ~ 5mm；
（c）The heat conduction copper foil is inserted in the through hole；
（d）In another surface mount of graphite flake formation tack coat so that the end of heat conduction copper foil 2 be in contact with tack coat and
Do not fall out；The vertical heat transfer rate of obtained graphite composite sheet reaches 150W/ (mk), and tensile strength is 700（Testing standard is
ASTM F-152）.
Embodiment 2
The present embodiment provides a kind of preparation method of high-heat conductive efficency graphite composite sheet, structure and the embodiment 1 of graphite composite sheet
In it is basically identical, unlike, it comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；The thickness of heat conduction copper foil 2 is 20 μm ~ 2mm, a diameter of 1 ~ 5mm；
（c）The heat conduction copper foil is inserted in the through hole；
（d'）Step（c）Obtained product is placed under vacuum condition, is warming up to 1000 DEG C with 30 DEG C/h speed, is then incubated 10
Minute, then room temperature is down to 50 DEG C/h speed, the vertical heat transfer rate of obtained graphite composite sheet reaches 250W/ (mk), draws
It is 750 to stretch intensity（Testing standard is ASTM F-152）.
Embodiment 3
The present embodiment provides a kind of preparation method of high-heat conductive efficency graphite composite sheet, structure and the embodiment 1 of graphite composite sheet
In it is basically identical, unlike, it comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；The thickness of heat conduction copper foil 2 is 20 μm ~ 2mm, a diameter of 1 ~ 5mm；
（c）The heat conduction copper foil is inserted in the through hole；
（d'）Step（c）Obtained product is placed under vacuum condition, is warming up to 1080 DEG C with 50 DEG C/h speed, is then incubated 30
Minute, then room temperature is down to 100 DEG C/h speed, the vertical heat transfer rate of obtained graphite composite sheet reaches 450W/ (mk),
Tensile strength is 850（Testing standard is ASTM F-152）.
Embodiment 4
The present embodiment provides a kind of preparation method of high-heat conductive efficency graphite composite sheet, structure and the embodiment 1 of graphite composite sheet
In it is basically identical, unlike, it comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；The thickness of heat conduction copper foil 2 is 20 μm ~ 2mm, a diameter of 1 ~ 5mm；
（c）The heat conduction copper foil is inserted in the through hole；
（d'）Step（c）Obtained product is placed under vacuum condition, is warming up to 1050 DEG C with 35 DEG C/h speed, is then incubated 25
Minute, then room temperature is down to 80 DEG C/h speed, the vertical heat transfer rate of obtained graphite composite sheet reaches 350W/ (mk), draws
It is 790 to stretch intensity（Testing standard is ASTM F-152）.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that spirit is made, should all be included within the scope of the present invention.
Claims (4)
1. a kind of preparation method of high-heat conductive efficency graphite composite sheet, the graphite composite sheet includes what surface was in contact with thermal source
Graphite flake and the multi-disc heat conduction copper foil through the graphite flake, the thickness of the heat conduction copper foil and the thickness phase of the graphite flake
Together；Characterized in that, it comprises the following steps：
（a）Graphite volume is punched into graphite flake, and is stamped and formed out multiple through holes；
（b）Copper foil volume is punched into heat conduction copper foil；
（c）The heat conduction copper foil is inserted in the through hole.
2. the preparation method of high-heat conductive efficency graphite composite sheet according to claim 1, it is characterised in that：It also includes step
Suddenly（d）In another surface mount formation tack coat of the graphite flake.
3. the preparation method of high-heat conductive efficency graphite composite sheet according to claim 1, it is characterised in that：It also includes step
Suddenly（d'）By step（c）Obtained product be placed in 1000 ~ 1080 DEG C, under vacuum condition insulation be down to room temperature after 10 ~ 30 minutes.
4. the preparation method of high-heat conductive efficency graphite composite sheet according to claim 3, it is characterised in that：The step
（d'）In, its programming rate is 30 ~ 50 DEG C/h, and its cooling rate is 50 ~ 100 DEG C/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710246040.8A CN106993394A (en) | 2017-06-06 | 2017-06-06 | A kind of preparation method of high-heat conductive efficency graphite composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710246040.8A CN106993394A (en) | 2017-06-06 | 2017-06-06 | A kind of preparation method of high-heat conductive efficency graphite composite sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106993394A true CN106993394A (en) | 2017-07-28 |
Family
ID=59415124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710246040.8A Pending CN106993394A (en) | 2017-06-06 | 2017-06-06 | A kind of preparation method of high-heat conductive efficency graphite composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106993394A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108925108A (en) * | 2018-07-13 | 2018-11-30 | 深圳烯创技术有限公司 | The conductive structure and its manufacturing method of aluminium alloy are inlayed in a kind of graphene-based composite substrate |
| CN111836488A (en) * | 2019-04-18 | 2020-10-27 | 苹果公司 | Thin coating of support plate |
| CN113355058A (en) * | 2021-06-04 | 2021-09-07 | 上海交通大学 | Two-dimensional carbon-metal configuration composite material and preparation method and application thereof |
| TWI746232B (en) * | 2020-10-28 | 2021-11-11 | 欣興電子股份有限公司 | Package structure and manufacturing method thereof |
| US11545412B2 (en) | 2018-03-20 | 2023-01-03 | Unimicron Technology Corp. | Package structure and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007012912A (en) * | 2005-06-30 | 2007-01-18 | Polymatech Co Ltd | Thermal conductive member and cooling structure using the same |
| CN105235307A (en) * | 2015-09-01 | 2016-01-13 | 山东安诺克新材料有限公司 | Heat-conductive film graphite composite material |
-
2017
- 2017-06-06 CN CN201710246040.8A patent/CN106993394A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007012912A (en) * | 2005-06-30 | 2007-01-18 | Polymatech Co Ltd | Thermal conductive member and cooling structure using the same |
| CN105235307A (en) * | 2015-09-01 | 2016-01-13 | 山东安诺克新材料有限公司 | Heat-conductive film graphite composite material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11545412B2 (en) | 2018-03-20 | 2023-01-03 | Unimicron Technology Corp. | Package structure and manufacturing method thereof |
| CN108925108A (en) * | 2018-07-13 | 2018-11-30 | 深圳烯创技术有限公司 | The conductive structure and its manufacturing method of aluminium alloy are inlayed in a kind of graphene-based composite substrate |
| CN111836488A (en) * | 2019-04-18 | 2020-10-27 | 苹果公司 | Thin coating of support plate |
| US11898808B2 (en) | 2019-04-18 | 2024-02-13 | Apple Inc. | Support plate thin cladding |
| TWI746232B (en) * | 2020-10-28 | 2021-11-11 | 欣興電子股份有限公司 | Package structure and manufacturing method thereof |
| CN113355058A (en) * | 2021-06-04 | 2021-09-07 | 上海交通大学 | Two-dimensional carbon-metal configuration composite material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107221506A (en) | A kind of preparation method of high-heat conductive efficency graphite composite sheet | |
| CN106993394A (en) | A kind of preparation method of high-heat conductive efficency graphite composite sheet | |
| CN204981729U (en) | High -efficient thermal film who contains thermal conductive adhesive | |
| CN204340308U (en) | A kind of miniature graphite copper radiating rib | |
| CN203504880U (en) | Graphene heat conduction circuit substrate | |
| CN205082059U (en) | heat dissipation circuit board | |
| KR101808898B1 (en) | Electro magnetic wave shielding sheet having heat relese fuction, and the preparation method for the same | |
| CN105814683B (en) | The manufacturing method of sheet-like structure, the electronic equipment for having used the sheet-like structure, the manufacturing method of sheet-like structure and electronic equipment | |
| CN108219757B (en) | Preparation method of high-in-plane heat-conducting insulating composite film | |
| CN201785338U (en) | Composite heat-dissipating graphite material | |
| CN107396618A (en) | A kind of fin of good insulating | |
| Bao et al. | Thermal management technology of IGBT modules based on two-dimensional materials | |
| CN207305058U (en) | Metal core circuit board | |
| CN202069420U (en) | High heat conduction kitchen utensil | |
| CN202553577U (en) | Unidirectional electric heating plate | |
| CN108428682A (en) | A kind of power modules and preparation method thereof | |
| CN204640982U (en) | The plastic-aluminum combined material of a kind of lamp body | |
| CN204421706U (en) | A kind of evaporimeter for heat-pipe radiating apparatus | |
| CN207639070U (en) | A kind of cooling fast aluminum alloy radiator casing | |
| CN202133325U (en) | Cluster type membrane material high heat radiation structure | |
| CN202008016U (en) | Thermoelectric separation LED illuminator module | |
| CN102538552A (en) | Bundle membrane material highly radiating structure and manufacturing method thereof | |
| CN206323720U (en) | Three-dimensional liquid metal heat radiation system | |
| CN209496856U (en) | Heat conductive insulating plate | |
| CN203521476U (en) | LED packaging structure with high heat conduction performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000 No. 2 Lantern Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant after: Suzhou Gaotai Electronic Technology Co., Ltd. Address before: 215000 No. 2 Lantern Street, Suzhou Industrial Park, Jiangsu Province Applicant before: SUZHOU SIP HI-TECH PRECISION ELECTRONICS CO., LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |