CN207845165U - A kind of graphite film coiled material jig - Google Patents
A kind of graphite film coiled material jig Download PDFInfo
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- CN207845165U CN207845165U CN201721868852.8U CN201721868852U CN207845165U CN 207845165 U CN207845165 U CN 207845165U CN 201721868852 U CN201721868852 U CN 201721868852U CN 207845165 U CN207845165 U CN 207845165U
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- jig
- coiled material
- graphite film
- film coiled
- graphite
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Abstract
The utility model is related to graphite film coiled material technical fields, and particularly a kind of graphite film coiled material jig, the jig are platypelloid type jig, and there are the jig two winding ends for winding PI films, wherein at least one to wind end retractable.The purpose of this utility model is to provide a kind of graphite film coiled material jig, no longer needs to be mingled with the material other than PI among coiled material when being wound PI, and coiling one-step shaping improves PI coiling efficiency；And the jig is a kind of graphite jig having retractable core, ensure that the coiled material close to core is not pulled off, coiled material yield higher；The graphite film coiled material jig is graphite jig, and during PI Carbonization contracts, coiled material relies closely with high heat conduction graphite film coiled material jig always, ensure that the uniformity that coiled material is heated from inside to outside.
Description
Technical field
The utility model is related to graphite film coiled material technical field, particularly a kind of graphite film coiled material jig and graphite film
Coiled material production technology.
Background technology
PI coiled materials are during being transformed into graphite coiled material, to reach with the comparable level of sheet quality（Film surface exquisiteness,
It is smooth, without breakage）, technically to reach coiled material and be heated evenly, shrink consistent and unimpeded coke discharging problem, generally use at present
Technological means is in PI coiling section by round tube filler coiling, and then row is arranged in the modes such as intermediate plus PET, metal strip or graphite paper
Degree of being heated evenly is improved in burnt space.Which realizes PI coiled materials and turns to general quality graphite coiled material to a certain extent
Become.
It is existing the process of graphite film coiled material to be prepared by PI coiled materials there are following defects：1, PI turns to graphite film
Variable area can shrink 20%-30%.Round tube filler is involved in around complete into carbide furnace, during PI Carbonization contracts, close to the coiled material of tube filler
Can be increasing with the pressure between barrel, hard tube filler cannot give PI and shrink cushion space, when pressure is born more than material
When intensity, the coiled material close to core can a large amount of damaged or fracture；2, PI coiling mode is too cumbersome, while using PET, metal strip etc.
The gap that mode is artificially arranged between PI is uneven, is heated during coiled material can be caused to be carbonized and coke discharging is uneven, obtained coiled material is shunk
Form differs, and then influences the degree of being heated evenly during graphitization, and uneven heating can lead to that graphite film coiled material form is inconsistent, film
Face out-of-flatness eventually affects calendering efficiency and calendering quality；3, it using round tube filler coiling, is set in a manner of PET, metal strip etc.
Gap is set, this gap is generally all excessive, cannot be tightened naturally after carbonization, and for coiled material graphitization, inside coiled material
Heat transmits uneven, discharging poor quality.
Utility model content
The purpose of this utility model is to provide a kind of graphite film coiled material jig, no longer needs rolling up when being wound PI
The material being mingled among material other than PI, coiling one-step shaping improve PI coiling efficiency；And the jig be one kind have can from
By the graphite jig for core of stretching, it ensure that the coiled material close to core is not pulled off, coiled material yield higher；The graphite film coiled material is controlled
Tool is graphite jig, and during PI Carbonization contracts, coiled material relies closely with high heat conduction graphite film coiled material jig always, is ensured
The uniformity that coiled material is heated from inside to outside.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of graphite film coiled material jig, the jig are platypelloid type jig, and the jig has two for winding PI films
A winding end, wherein at least one wind end retractable.
Specifically, above-mentioned two winding end can freely stretch.
Specifically, above-mentioned jig includes the winding end of jig body and retractable, the winding of the retractable
End is that T-type winds end, including crosspiece and the perpendicular section being vertically fixed in the middle part of crosspiece, and the jig body is equipped with rolls up convenient for T-type
The receiving hole that perpendicular section around end is freely stretched.
Specifically, above-mentioned jig body is flat square.
Specifically, above-mentioned jig further includes being moved when winding PI films, for restricted T type winding end relative to jig body
Limiting device.
Specifically, above-mentioned limiting device is limited block, when wind PI films, limited block be located at crosspiece and jig body it
Between.
Specifically, above-mentioned limiting device is spacer pin, has jig body limit hole, the perpendicular section in the jig body
It is equipped with perpendicular section limit hole, the spacer pin passes through jig body limit hole and perpendicular section limit hole to carry out T-type winding end position
Limit.
A kind of technique being produced graphite film coiled material using graphite film coiled material jig, is included the following steps：
1) PI films are coiled into coiled material by the carrier centered on graphite film coiled material jig on graphite film coiled material jig；
2) by step 1）The coiled material and graphite film coiled material jig being coiled into are sent into carbide furnace and are carbonized, institute in carbonisation
State jig level；
3) by step 2）Coiled material and graphite film coiled material jig after carbonization, which are sent into graphitizing furnace, to be graphitized, graphite
The jig is horizontal positioned during change；
4) uncoiling rewinding；
5) calendering process.
Specifically, it is 500~1400 DEG C that the carbonisation of above-mentioned steps 2, which is specifically carburizing temperature, carbonization time 12
~24 hours, vacuum environment was 10~10000Pa in carbide furnace.
Specifically, it is 2400~3300 DEG C that the graphitizing process of above-mentioned steps 3, which is specifically graphitization temperature, the time 4
~12 hours, the environment of inert gas shielding in graphitizing furnace.
The utility model has the beneficial effects that：（1）A kind of graphite film coiled material jig provided by the utility model, to PI into
It no longer needs to be mingled with the material other than PI among coiled material when row winding, coiling one-step shaping improves PI coiling efficiency；
（2）In the transition process of PI to graphite film, the contraction of 20%-30% can occur for coiled material, provided by the utility model
A kind of graphite film coiled material jig is a kind of graphite jig having retractable core, ensure that close to core coiled material not by
It breaks, coiled material yield higher；
（3）A kind of graphite film coiled material jig provided by the utility model, no longer needs when being wound to PI in coiled material
Centre is mingled with the material other than PI, and during PI Carbonization contracts, coiled material is close with high heat conduction graphite film coiled material jig always
It mutually leans on, ensure that the uniformity that coiled material is heated from inside to outside, the graphite film flatness finally come out of the stove is fine, and when calendering is not easily broken
It splits, rolling velocity can reach 8m/min or more；Because PI shrink can inside the coiled material between generate certain extruding force, it is this to squeeze
Pressure is conducive to the heated and internal crystallite of coiled material and is orientated along graphite film film surface direction, is conducive to carrying for direction thermal diffusion coefficient
Height, thermal diffusion coefficient normally can generally reach 900mm2/ s or more；
（4）In the transition process of PI to graphite film, it can tighten, be conducive under graphitizable high temperature naturally after the carbonization of PI coiled materials
Coiled material interior layer and interlayer thermally equivalent, coiled material quality is more preferable after graphitization.
（5）A kind of graphite film coiled material jig provided by the utility model, whole is in platypelloid type, is effectively prevented due to carbonization
The uneven heating of PI coiled materials caused by the temperature difference of the levels part of stove and graphitizing furnace, ensure that graphitization after coiled material it is good
Quality；Flat jig can ensure to locally lie between PI in PI coiling not produce before carbonization between gap or PI
Raw extruding force, facilitates carbonization coke discharging；Simultaneously sidewards（Recumbency）It places and can guarantee that jig spatial position is more stable, be heated evenly,
The quality that discharges is good, and coiled material wide cut can do more.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of graphite film coiled material jig of the utility model；
Fig. 2 is a kind of decomposition texture schematic diagram of graphite film coiled material jig of the utility model；
Fig. 3 is the structural schematic diagram of the graphite film coiled material jig with spacer pin；
Fig. 4 is the structural schematic diagram of the graphite film coiled material jig with limited block；
In figure：1. end is wound, 2. jig bodies, 11. crosspieces, 12. perpendicular sections, 21. receiving holes, 3. limited blocks, 4. limits
Pin, 5. jig body limit holes, 6. perpendicular section limit holes.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.
A kind of graphite film coiled material jig, jig are platypelloid type graphite jig, and jig has two volumes for winding PI films
Around end 1, wherein at least one winds 1 retractable of end.
In a specific embodiment, two winding ends 1 can freely stretch.
In a specific embodiment, jig includes the winding end 1 of jig body 2 and retractable, can freely be stretched
The winding end 1 of contracting is that T-type winds end 1, including crosspiece 11 and the perpendicular section 12 for being vertically fixed on the middle part of crosspiece 11, in jig body 2
The receiving hole 21 freely stretched equipped with the perpendicular section 12 for winding end 1 convenient for T-type.
In a specific embodiment, jig body 2 is flat square.
In a specific embodiment, jig further include when winding PI films, for restricted T type winding end 1 relative to
The limiting device that jig body 2 moves.
In a specific embodiment, limiting device is limited block 3, and when winding PI films, limited block 3 is located at crosspiece 11
Between jig body 2.
In a specific embodiment, limiting device is spacer pin 4, has jig body limit hole in jig body 2
5, it erects section 12 and is equipped with perpendicular section limit hole 6, spacer pin 4 passes through jig body limit hole 5 and perpendicular section limit hole 6 to wind end 1 to T-type
Position is limited.
A kind of technique being produced graphite film coiled material using graphite film coiled material jig, is included the following steps：
1) PI films are coiled into coiled material by the carrier centered on graphite film coiled material jig on graphite film coiled material jig；
2) by step 1）The coiled material and graphite film coiled material jig being coiled into are sent into carbide furnace and are carbonized, institute in carbonisation
It is horizontal positioned to state jig；Carburizing temperature is 500~1400 DEG C, and carbonization time is 12~24 hours, and vacuum environment is in carbide furnace
10~10000Pa；
3) by step 2）Coiled material and graphite film coiled material jig after carbonization, which are sent into graphitizing furnace, to be graphitized, graphite
The jig is horizontal positioned during change；Graphitization temperature is 2400~3300 DEG C, and the time is 4~12 hours, in graphitizing furnace
The environment of inert gas shielding.
4) uncoiling rewinding；
5) calendering process.
Embodiment 1
A kind of graphite film coiled material jig, jig are flat square graphite jig, and jig has two for winding PI films
End 1 is wound, two of which winding end 1 can freely stretch, and jig includes the winding end 1 of jig body 2 and retractable,
The winding end 1 of retractable is that T-type winds end 1, including crosspiece 11 and the perpendicular section 12 for being vertically fixed on 11 middle part of crosspiece, jig
Ontology 2 is equipped with the receiving hole 21 freely stretched convenient for the perpendicular section 12 at T-type winding end 1, and jig further includes when winding PI films, uses
The spacer pin 4 that end 1 is moved relative to jig body 2 is wound in restricted T type, there is jig body limit hole 5 in jig body 2,
Perpendicular section 12 is equipped with perpendicular section limit hole 6, and spacer pin 4 passes through jig body limit hole 5 and perpendicular section limit hole 6 to wind 1, end to T-type
It sets and is limited.
A kind of technique being produced graphite film coiled material using graphite film coiled material jig, is included the following steps：
1) PI films are coiled into coiled material on graphite film coiled material jig, will limited by the carrier centered on graphite film coiled material jig
Pin 4 takes out；
2) by step 1）The coiled material and graphite film coiled material jig being coiled into are sent into carbide furnace and are carbonized, institute in carbonisation
State jig level；
3) by step 2）Coiled material and graphite film coiled material jig after carbonization, which are sent into graphitizing furnace, to be graphitized, graphite
The jig is horizontal positioned during change；
4) uncoiling rewinding；
5) calendering process.
Comparative example 1
Other with embodiment 1, the difference is that, after the completion of winding, jig is removed, is carbonized and is graphitized.
Coiled material is in high temperature cabonization PI cracking contraction phase stress and all uneven, the graphite film flatness finally come out of the stove of being heated
Very poor, easy fracture when calendering, rolling velocity can only achieve 3-4m/min；It is supported without object because PI shrinks inside, inside coiled material
The power mutually squeezed is hardly generated, the raising of direction thermal diffusion coefficient is unfavorable for, thermal diffusion coefficient normally generally can only
Reach 800mm2/ s or so.
Comparative example 2
Other with embodiment 1, the difference is that, after the completion of winding, retain spacer pin, prevent T-type wind end 1 from free
It is mobile.
The even more fractures of 2-3 meters of generation and breakage are pulled off in carbonized graphite not close to the coiled material of telescopic jig
It is good.
Comparative example 3
Other with comparative example 1, the difference is that, wind PI by the way of PET, metal strip.
Conventional PI coiling mode is too cumbersome, while the unevenness of the gap between PI is artificially arranged using modes such as PET, metal strips
It is even, it is heated during coiled material can be caused to be carbonized and coke discharging is uneven, obtained coiled material retracted configuration differs, and then during influence graphitization
Degree of being heated evenly, uneven heating can lead to that graphite film coiled material form is inconsistent, film surface out-of-flatness, eventually affect calendering efficiency
With calendering quality.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
Claims (6)
1. a kind of graphite film coiled material jig, it is characterised in that：The jig is platypelloid type graphite jig, and the jig, which has, to be used for
Two winding ends of PI films are wound, wherein at least one winds end retractable；The jig includes jig body and can
The winding end freely stretched, the winding end of the retractable are that T-type winds end, including crosspiece and are vertically fixed in crosspiece
The perpendicular section in portion, the jig body are equipped with the receiving hole freely stretched convenient for the perpendicular section at T-type winding end.
2. according to a kind of graphite film coiled material jig described in claim 1, it is characterised in that：It described two winding ends can be with
Freely stretch.
3. a kind of graphite film coiled material jig according to claim 1, it is characterised in that：The jig body is flat side
Shape.
4. a kind of graphite film coiled material jig according to claim 1, it is characterised in that：The jig further includes in winding PI
The limiting device moved relative to jig body when film, for restricted T type winding end.
5. a kind of graphite film coiled material jig according to claim 4, it is characterised in that：The limiting device is limited block,
When winding PI films, limited block is between crosspiece and jig body.
6. a kind of graphite film coiled material jig according to claim 4, it is characterised in that：The limiting device is spacer pin,
There is jig body limit hole, the perpendicular section to be equipped with perpendicular section limit hole, the spacer pin passes through jig in the jig body
Ontology limit hole and perpendicular section limit hole limit T-type winding end position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868852.8U CN207845165U (en) | 2017-12-27 | 2017-12-27 | A kind of graphite film coiled material jig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868852.8U CN207845165U (en) | 2017-12-27 | 2017-12-27 | A kind of graphite film coiled material jig |
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| Publication Number | Publication Date |
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| CN207845165U true CN207845165U (en) | 2018-09-11 |
Family
ID=63419416
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986270A (en) * | 2017-12-27 | 2018-05-04 | 碳元科技股份有限公司 | A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material |
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2017
- 2017-12-27 CN CN201721868852.8U patent/CN207845165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986270A (en) * | 2017-12-27 | 2018-05-04 | 碳元科技股份有限公司 | A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material |
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