CN109703164A - The manufacturing method of graphite film - Google Patents
The manufacturing method of graphite film Download PDFInfo
- Publication number
- CN109703164A CN109703164A CN201811637598.XA CN201811637598A CN109703164A CN 109703164 A CN109703164 A CN 109703164A CN 201811637598 A CN201811637598 A CN 201811637598A CN 109703164 A CN109703164 A CN 109703164A
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- China
- Prior art keywords
- film
- wheel
- binder
- manufacturing
- beaming roller
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- 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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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 23
- 239000010439 graphite Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 229920002521 macromolecule Polymers 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 6
- 238000003763 carbonization Methods 0.000 claims abstract description 5
- 238000003490 calendering Methods 0.000 claims abstract description 4
- 238000005087 graphitization Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 239000011265 semifinished product Substances 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of manufacturing method of graphite film, it include the following steps: 1), rolling step；2), low-temperature carbonization；3), high temperature graphitization；4) electrographite film semi-finished product pressure is attached on release film or protective film by, calendering process；5), winding packaging；Wherein the rolling step is the process by macromolecule PI film original packing volume by reel-off gear again clot, so that the macromolecule PI film package roll after loose winding retains the gap of 50um-500um between layers.
Description
Technical field:
The present invention relates to the manufacturing method of the graphite film of the heat dissipation film and radiator material that are used as electronic equipment, precision equipment etc.,
In particular to the manufacturing method of smooth strip graphite film.
Background technique:
Heat generating components with the continuous development of electronics industry, in mobile phone, computer, LCD TV and various integrated circuit boards
Requirement to heat dissipation is higher and higher, therefore graphite film is high as a kind of thermal conductivity and is in the Heat Conduction Material of film-form in electronics industry
In be widely used, it can effectively by heat caused by electronic component to the radiator bodies such as radiator transmit, thus
The heat of electronic component is spread rapidly to reduce the temperature of the electronic component of fever.The manufacturing method of existing graphite film is by list
The polymeric membrane opened, which is sandwiched in be heat-treated in flexible graphite paper, to be obtained, but graphite film size is limited in this way, and production efficiency is low,
And it is restricted in subsequent applications, therefore how efficiently to produce continuous graphite film coiled material into instantly popular class
Topic.Chinese patent ZL201580001791.2 discloses a kind of manufacturing method of graphite film, and such an approach achieves graphite film rolls
The scale volume production of material, but 1 rolling step of this method and step needs to introduce flexible graphite paper and is pricked with carbon rope is tired, and complex procedures are simultaneously
And efficiency is lower.
Summary of the invention:
Technical problem to be solved by the invention is to provide a kind of manufacturing method of completely new graphite film, technical side used by it
Case is: a kind of manufacturing method of graphite film, it includes the following steps: a kind of manufacturing method of graphite film, includes the following steps:
1), rolling step；2), low-temperature carbonization；3), high temperature graphitization；4), calendering process, by electrographite film semi-finished product pressure be attached to from
On type film or protective film；5), winding packaging；Wherein the rolling step is that macromolecule PI film original packing volume is passed through reel-off gear
Again the process of clot, so that the macromolecule PI film package roll after loose winding retains the gap of 50um-500um between layers.
The present invention is further characterized in:
The reel-off gear includes feed spool, and the feeding servo motor being electrically connected with feed spool, collecting shaft is electrically connected with collecting shaft
Rewinding servo motor, the material feeding tray being fixed on feed spool, the rewinding pallet being fixed on collecting shaft, and being watched with feeding
Take the PLC controller and manipulation touch screen of motor and the electrical connection of rewinding servo motor.
Rubber folder film rollers wheel and binder beaming roller wheel and adjustable rubber are additionally provided between the feed spool and collecting shaft
The regulating mechanism of gap width between plastic clip deflector roll wheel and binder beaming roller wheel, wherein the nip rolls wheel is electrically connected with binder servo
Motor.
The regulating mechanism of gap width is to connect with rubber folder film rollers wheel between the rubber folder film rollers wheel and binder beaming roller wheel
The regulation handle connect, there are two stations for the regulation handle: a station is separated into rubber folder film rollers wheel and binder beaming roller wheel
The gap of 10mm, convenient for across macromolecule PI film, another station makes rubber folder film rollers wheel and binder beaming roller wheel be combined into zero boundary
Face prevents macromolecule PI film fold.
The binder beaming roller wheel is provided with Destaticizing device in the side close to collecting shaft.
The beneficial effects of the present invention are: since macromolecule PI film original packing volume is passed through reel-off gear again in rolling step
Clot, so that the macromolecule PI film package roll after loose winding retains the gap of 50um-500um between layers.Make to secure satisfactory grades in this way
It is not in free warpage after sub- film carbonization；And present invention introduces the full-automatic loose windings of reel-off gear can guarantee between film and film
Interval is consistent, fully meets the gap of macromolecule PI film expanded by heating, and the product for being sintered out is intact, and full-automatic from the beginning to the end
Coiling, to being automatically stopped when counting, so that production efficiency increases substantially.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of reel-off gear in the present invention.
Specific embodiment:
The present invention is further illustrated with reference to the accompanying drawing.
Referring to Fig.1, a kind of manufacturing method of graphite film, it includes the following steps: a kind of manufacturing method of graphite film, including
, rolling step following steps: 1)；2), low-temperature carbonization；3), high temperature graphitization；4), calendering process, by electrographite film semi-finished product
Pressure is attached on release film or protective film；5), winding packaging；Wherein the rolling step is to pass through macromolecule PI film original packing volume
The process of reel-off gear clot again, so that the macromolecule PI film package roll after loose winding retains 50um-500um's between layers
Gap.Wherein the reel-off gear includes feed spool 1, the feeding servo motor 2 being electrically connected with feed spool, collecting shaft 3, with rewinding
The rewinding servo motor 4 of axis electrical connection, the material feeding tray 5 being fixed on feed spool 1, the rewinding pallet being fixed on collecting shaft 3
6, and the PLC controller 7 and manipulation touch screen 8 that are electrically connected with feeding servo motor 2 and rewinding servo motor 4, in this implementation
In example, other positions can also be arranged in inside manipulation touch screen 8 in the setting of PLC controller 7 in practical applications certainly.?
In reel-off gear shown in FIG. 1, rubber folder film rollers wheel 9 and binder beaming roller wheel are additionally provided between the feed spool 1 and collecting shaft 3
The regulating mechanism of gap width between 10 and adjustable rubber folder film rollers 9 wheel and binder beaming roller wheel 10, wherein the binder
Roller is electrically connected with binder servo motor 11.In the present embodiment, gap between the rubber folder film rollers wheel and binder beaming roller wheel
The regulating mechanism of width is the regulation handle 12 connecting with rubber folder film rollers wheel, and there are two stations for the regulation handle: a work
Position makes rubber folder film rollers wheel 9 and binder beaming roller wheel 10 be separated into the gap of 10mm, convenient for across macromolecule PI film, another station
So that rubber folder film rollers wheel 9 and binder beaming roller wheel 10 is combined into zero interface, prevents PI film fold.In reel-off gear shown in Fig. 1,
The binder beaming roller wheel is provided with Destaticizing device 13 in the side close to collecting shaft.
In the present invention, the working principle of the reel-off gear is: rewinding length computation: setting rewinding length as L receipts, rewinding
Axis initial diameter is d1, and the gap of film and film is x when rewinding, then collecting shaft first lap length is that L receives 1=π (d1+0x), second
It encloses L and receives 2=π (d1+2x), third circle L receives 3=π (d1+4x) n-th and encloses are as follows: L receives n=π [d1+2 (n ﹣ 1) x] (n >=1)
Material recovering speed: touch screen sets V and receives；
Feed length: L send n=L to receive n
Binder length: L pressure n=L send n=L to receive n
Feeding speed and binder speed: PLC is calculated, and meets above-mentioned condition.
The diameter of collecting shaft is every to increase by a circle, and PLC calculates its perimeter, and rewinding servo motor is operated with the speed set,
Feed spool and binder axis send feeding servo motor and binder servo motor with operating in the time then with the calculated speed of PLC
Length is expected, to realize that the gap between macromolecule PI film and film is always consistent.
Since macromolecule PI film original packing volume is passed through reel-off gear clot again in rolling step, so that the height after loose winding
Molecule PI film package roll retains the gap of 50um-500um between layers.It is not in certainly after making polymeric membrane be carbonized in this way
By warpage；And present invention introduces the full-automatic loose windings of reel-off gear can guarantee that the interval between film and film is consistent, fully meets height
The gap of molecule PI film expanded by heating, the product for being sintered out is intact, and full-automatic coiling from the beginning to the end, to count when stop automatically
Only, so that production efficiency increases substantially.
Coverage area of the invention is not limited to the above embodiments, on the contrary, the present invention cover it is all literal upper or equivalent
All technical solutions being substantially intended to fall within the scope of the appended claims under the introduction of form.Protection scope of the present invention is wanted with right
It asks subject to book.
Claims (5)
1. a kind of manufacturing method of graphite film, it is characterised in that include the following steps: 1), rolling step；2), low-temperature carbonization；3),
High temperature graphitization；4) electrographite film semi-finished product pressure is attached on release film or protective film by, calendering process；5), winding packaging；
Wherein the rolling step is the process by macromolecule PI film original packing volume by reel-off gear again clot, so that after loose winding
Macromolecule PI film package roll retains the gap of 50um-500um between layers.
2. the manufacturing method of graphite film as described in claim 1, it is characterised in that: the reel-off gear includes feed spool, with
The feeding servo motor of feed spool electrical connection, collecting shaft, the rewinding servo motor being electrically connected with collecting shaft are fixed on feed spool
Material feeding tray, the rewinding pallet being fixed on collecting shaft, and be electrically connected with feeding servo motor and rewinding servo motor
PLC controller and manipulation touch screen.
3. the manufacturing method of graphite film as claimed in claim 2, it is characterised in that: it is also set between the feed spool and collecting shaft
It is equipped with gap width between rubber folder film rollers wheel and binder beaming roller wheel and adjustable rubber folder film rollers wheel and binder beaming roller wheel
Regulating mechanism, wherein the nip rolls wheel is electrically connected with binder servo motor.
4. the manufacturing method of graphite film as claimed in claim 3, it is characterised in that: the rubber folder film rollers wheel and binder beaming roller
The regulating mechanism of gap width is the regulation handle connecting with rubber folder film rollers wheel between wheel, and there are two works for the regulation handle
Position: a station makes rubber folder film rollers wheel and binder beaming roller wheel be separated into the gap of 10mm, is convenient for across macromolecule PI film, another
A station makes rubber folder film rollers wheel and binder beaming roller wheel be combined into zero interface, prevents PI film fold.
5. such as claim 3 or the manufacturing method of graphite film as claimed in claim 4, it is characterised in that: the binder beaming roller wheel
Side close to collecting shaft is provided with Destaticizing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637598.XA CN109703164A (en) | 2018-12-29 | 2018-12-29 | The manufacturing method of graphite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637598.XA CN109703164A (en) | 2018-12-29 | 2018-12-29 | The manufacturing method of graphite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109703164A true CN109703164A (en) | 2019-05-03 |
Family
ID=66259741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637598.XA Pending CN109703164A (en) | 2018-12-29 | 2018-12-29 | The manufacturing method of graphite film |
Country Status (1)
| Country | Link |
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| CN (1) | CN109703164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135635A1 (en) * | 2018-12-29 | 2020-07-02 | 嘉兴中易碳素科技有限公司 | Loose winding apparatus |
| WO2023165204A1 (en) * | 2022-03-04 | 2023-09-07 | 浙江道明超导科技有限公司 | Manufacturing process for coiled graphene heat dissipation film material |
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|---|---|---|---|---|
| WO2013035237A1 (en) * | 2011-09-08 | 2013-03-14 | 株式会社カネカ | Process for producing carbonaceous film and process for producing graphite film |
| KR20140002671A (en) * | 2011-03-28 | 2014-01-08 | 가부시키가이샤 가네카 | A process for producing a carbonaceous film, a process for producing a graphite film, and a process for producing a roll-shaped polymer film and a roll- |
| CN203631629U (en) * | 2013-11-01 | 2014-06-04 | 厦门聚微材料科技有限公司 | Pair-roller adjustment device for film layering machine |
| CN104802467A (en) * | 2014-01-27 | 2015-07-29 | 嘉兴中易碳素科技有限公司 | Making method of graphite film |
| CN105531227A (en) * | 2014-01-27 | 2016-04-27 | 嘉兴中易碳素科技有限公司 | Method for preparing graphite film |
| CN106586636A (en) * | 2016-12-28 | 2017-04-26 | 镇江博昊科技有限公司 | Delivery mechanism for graphite film calender |
| CN106927068A (en) * | 2017-01-13 | 2017-07-07 | 北京卫星制造厂 | A kind of Graphene film Rapid Implementation device and process |
| CN207903614U (en) * | 2017-12-28 | 2018-09-25 | 北京中石伟业科技无锡有限公司 | The zero adjustable film in tension gap rewinds device |
-
2018
- 2018-12-29 CN CN201811637598.XA patent/CN109703164A/en active Pending
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| KR20140002671A (en) * | 2011-03-28 | 2014-01-08 | 가부시키가이샤 가네카 | A process for producing a carbonaceous film, a process for producing a graphite film, and a process for producing a roll-shaped polymer film and a roll- |
| WO2013035237A1 (en) * | 2011-09-08 | 2013-03-14 | 株式会社カネカ | Process for producing carbonaceous film and process for producing graphite film |
| CN203631629U (en) * | 2013-11-01 | 2014-06-04 | 厦门聚微材料科技有限公司 | Pair-roller adjustment device for film layering machine |
| CN104802467A (en) * | 2014-01-27 | 2015-07-29 | 嘉兴中易碳素科技有限公司 | Making method of graphite film |
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| CN106586636A (en) * | 2016-12-28 | 2017-04-26 | 镇江博昊科技有限公司 | Delivery mechanism for graphite film calender |
| CN106927068A (en) * | 2017-01-13 | 2017-07-07 | 北京卫星制造厂 | A kind of Graphene film Rapid Implementation device and process |
| CN207903614U (en) * | 2017-12-28 | 2018-09-25 | 北京中石伟业科技无锡有限公司 | The zero adjustable film in tension gap rewinds device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135635A1 (en) * | 2018-12-29 | 2020-07-02 | 嘉兴中易碳素科技有限公司 | Loose winding apparatus |
| WO2023165204A1 (en) * | 2022-03-04 | 2023-09-07 | 浙江道明超导科技有限公司 | Manufacturing process for coiled graphene heat dissipation film material |
| JP2024535402A (en) * | 2022-03-04 | 2024-09-30 | 浙江道明超導科技有限公司 | Manufacturing process of graphene heat dissipation film coil material |
| JP7625765B2 (en) | 2022-03-04 | 2025-02-03 | 浙江道明超導科技有限公司 | Manufacturing process of graphene heat dissipation film coil material |
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Application publication date: 20190503 |